examples/advanced_faults/ipc_failure_during_stream.py

@@ -120,7 +120,6 @@ async def main(
     break_parent_ipc_after: int|bool = False,
     break_child_ipc_after: int|bool = False,
     pre_close: bool = False,
-    tpt_proto: str = 'tcp',
 
 ) -> None:
 
@@ -132,7 +131,6 @@ async def main(
             # a hang since it never engages due to broken IPC
             debug_mode=debug_mode,
             loglevel=loglevel,
-            enable_transports=[tpt_proto],
 
         ) as an,
     ):
@@ -147,8 +145,7 @@ async def main(
             _testing.expect_ctxc(
                 yay=(
                     break_parent_ipc_after
-                    or
+                    or break_child_ipc_after
-                    break_child_ipc_after
                 ),
                 # TODO: we CAN'T remove this right?
                 # since we need the ctxc to bubble up from either

pyproject.toml

@@ -46,7 +46,6 @@ dependencies = [
   # typed IPC msging
   "msgspec>=0.19.0",
   "cffi>=1.17.1",
-  "bidict>=0.23.1",
 ]
 
 # ------ project ------
@@ -64,7 +63,6 @@ dev = [
   "pyperclip>=1.9.0",
   "prompt-toolkit>=3.0.50",
   "xonsh>=0.19.2",
-  "psutil>=7.0.0",
 ]
 # TODO, add these with sane versions; were originally in
 # `requirements-docs.txt`..

tests/conftest.py

@@ -1,8 +1,6 @@
 """
-Top level of the testing suites!
+``tractor`` testing!!
-
 """
-from __future__ import annotations
 import sys
 import subprocess
 import os
@@ -32,11 +30,7 @@ else:
     _KILL_SIGNAL = signal.SIGKILL
     _INT_SIGNAL = signal.SIGINT
     _INT_RETURN_CODE = 1 if sys.version_info < (3, 8) else -signal.SIGINT.value
-    _PROC_SPAWN_WAIT = (
+    _PROC_SPAWN_WAIT = 0.6 if sys.version_info < (3, 7) else 0.4
-        0.6
-        if sys.version_info < (3, 7)
-        else 0.4
-    )
 
 
 no_windows = pytest.mark.skipif(
@@ -45,9 +39,7 @@ no_windows = pytest.mark.skipif(
 )
 
 
-def pytest_addoption(
+def pytest_addoption(parser):
-    parser: pytest.Parser,
-):
     parser.addoption(
         "--ll",
         action="store",
@@ -64,8 +56,7 @@ def pytest_addoption(
     )
 
     parser.addoption(
-        "--tpdb",
+        "--tpdb", "--debug-mode",
-        "--debug-mode",
         action="store_true",
         dest='tractor_debug_mode',
         # default=False,
@@ -76,17 +67,6 @@ def pytest_addoption(
         ),
     )
 
-    # provide which IPC transport protocols opting-in test suites
-    # should accumulatively run against.
-    parser.addoption(
-        "--tpt-proto",
-        nargs='+',  # accumulate-multiple-args
-        action="store",
-        dest='tpt_protos',
-        default=['tcp'],
-        help="Transport protocol to use under the `tractor.ipc.Channel`",
-    )
-
 
 def pytest_configure(config):
     backend = config.option.spawn_backend
@@ -94,7 +74,7 @@ def pytest_configure(config):
 
 
 @pytest.fixture(scope='session')
-def debug_mode(request) -> bool:
+def debug_mode(request):
     debug_mode: bool = request.config.option.tractor_debug_mode
     # if debug_mode:
     #     breakpoint()
@@ -115,35 +95,11 @@ def spawn_backend(request) -> str:
     return request.config.option.spawn_backend
 
 
-@pytest.fixture(scope='session')
+# @pytest.fixture(scope='function', autouse=True)
-def tpt_protos(request) -> list[str]:
+# def debug_enabled(request) -> str:
-
+#     from tractor import _state
-    # allow quoting on CLI
+#     if _state._runtime_vars['_debug_mode']:
-    proto_keys: list[str] = [
+#         breakpoint()
-        proto_key.replace('"', '').replace("'", "")
-        for proto_key in request.config.option.tpt_protos
-    ]
-
-    # ?TODO, eventually support multiple protos per test-sesh?
-    if len(proto_keys) > 1:
-        pytest.fail(
-            'We only support one `--tpt-proto <key>` atm!\n'
-        )
-
-    # XXX ensure we support the protocol by name via lookup!
-    for proto_key in proto_keys:
-        addr_type = tractor._addr._address_types[proto_key]
-        assert addr_type.proto_key == proto_key
-
-    yield proto_keys
-
-
-@pytest.fixture(scope='session')
-def tpt_proto(
-    tpt_protos: list[str],
-) -> str:
-    yield tpt_protos[0]
-
 
 _ci_env: bool = os.environ.get('CI', False)
 
@@ -151,7 +107,7 @@ _ci_env: bool = os.environ.get('CI', False)
 @pytest.fixture(scope='session')
 def ci_env() -> bool:
     '''
-    Detect CI environment.
+    Detect CI envoirment.
 
     '''
     return _ci_env
@@ -159,45 +115,30 @@ def ci_env() -> bool:
 
 # TODO: also move this to `._testing` for now?
 # -[ ] possibly generalize and re-use for multi-tree spawning
-#    along with the new stuff for multi-addrs?
+#    along with the new stuff for multi-addrs in distribute_dis
+#    branch?
 #
-# choose random port at import time
+# choose randomly at import time
-_rando_port: str = random.randint(1000, 9999)
+_reg_addr: tuple[str, int] = (
+    '127.0.0.1',
+    random.randint(1000, 9999),
+)
 
 
 @pytest.fixture(scope='session')
-def reg_addr(
+def reg_addr() -> tuple[str, int]:
-    tpt_proto: str,
-) -> tuple[str, int|str]:
 
     # globally override the runtime to the per-test-session-dynamic
     # addr so that all tests never conflict with any other actor
     # tree using the default.
-    from tractor import (
+    from tractor import _root
-        _addr,
+    _root._default_lo_addrs = [_reg_addr]
-    )
-    addr_type = _addr._address_types[tpt_proto]
-    def_reg_addr: tuple[str, int] = _addr._default_lo_addrs[tpt_proto]
 
-    testrun_reg_addr: tuple[str, int]
+    return _reg_addr
-    match tpt_proto:
-        case 'tcp':
-            testrun_reg_addr = (
-                addr_type.def_bindspace,
-                _rando_port,
-            )
-
-        # NOTE, file-name uniqueness (no-collisions) will be based on
-        # the runtime-directory and root (pytest-proc's) pid.
-        case 'uds':
-            testrun_reg_addr = addr_type.get_random().unwrap()
-
-    assert def_reg_addr != testrun_reg_addr
-    return testrun_reg_addr
 
 
 def pytest_generate_tests(metafunc):
-    spawn_backend: str = metafunc.config.option.spawn_backend
+    spawn_backend = metafunc.config.option.spawn_backend
 
     if not spawn_backend:
         # XXX some weird windows bug with `pytest`?
@@ -210,53 +151,45 @@ def pytest_generate_tests(metafunc):
         'trio',
     )
 
-    # NOTE: used-to-be-used-to dyanmically parametrize tests for when
+    # NOTE: used to be used to dyanmically parametrize tests for when
     # you just passed --spawn-backend=`mp` on the cli, but now we expect
     # that cli input to be manually specified, BUT, maybe we'll do
     # something like this again in the future?
     if 'start_method' in metafunc.fixturenames:
-        metafunc.parametrize(
+        metafunc.parametrize("start_method", [spawn_backend], scope='module')
-            "start_method",
-            [spawn_backend],
-            scope='module',
-        )
 
-    # TODO, parametrize any `tpt_proto: str` declaring tests!
+
-    # proto_tpts: list[str] = metafunc.config.option.proto_tpts
+# TODO: a way to let test scripts (like from `examples/`)
-    # if 'tpt_proto' in metafunc.fixturenames:
+# guarantee they won't registry addr collide!
-    #     metafunc.parametrize(
+# @pytest.fixture
-    #         'tpt_proto',
+# def open_test_runtime(
-    #         proto_tpts,  # TODO, double check this list usage!
+#     reg_addr: tuple,
-    #         scope='module',
+# ) -> AsyncContextManager:
+#     return partial(
+#         tractor.open_nursery,
+#         registry_addrs=[reg_addr],
 #     )
 
 
-def sig_prog(
+def sig_prog(proc, sig):
-    proc: subprocess.Popen,
-    sig: int,
-    canc_timeout: float = 0.1,
-) -> int:
     "Kill the actor-process with ``sig``."
     proc.send_signal(sig)
-    time.sleep(canc_timeout)
+    time.sleep(0.1)
     if not proc.poll():
         # TODO: why sometimes does SIGINT not work on teardown?
         # seems to happen only when trace logging enabled?
         proc.send_signal(_KILL_SIGNAL)
-    ret: int = proc.wait()
+    ret = proc.wait()
     assert ret
 
 
 # TODO: factor into @cm and move to `._testing`?
 @pytest.fixture
 def daemon(
-    debug_mode: bool,
     loglevel: str,
     testdir,
     reg_addr: tuple[str, int],
-    tpt_proto: str,
+):
-
-) -> subprocess.Popen:
     '''
     Run a daemon root actor as a separate actor-process tree and
     "remote registrar" for discovery-protocol related tests.
@@ -268,99 +201,27 @@ def daemon(
 
     code: str = (
             "import tractor; "
-        "tractor.run_daemon([], "
+            "tractor.run_daemon([], registry_addrs={reg_addrs}, loglevel={ll})"
-        "registry_addrs={reg_addrs}, "
-        "debug_mode={debug_mode}, "
-        "loglevel={ll})"
     ).format(
         reg_addrs=str([reg_addr]),
         ll="'{}'".format(loglevel) if loglevel else None,
-        debug_mode=debug_mode,
     )
     cmd: list[str] = [
         sys.executable,
         '-c', code,
     ]
-    # breakpoint()
     kwargs = {}
     if platform.system() == 'Windows':
         # without this, tests hang on windows forever
         kwargs['creationflags'] = subprocess.CREATE_NEW_PROCESS_GROUP
 
-    proc: subprocess.Popen = testdir.popen(
+    proc = testdir.popen(
         cmd,
+        stdout=subprocess.PIPE,
+        stderr=subprocess.PIPE,
         **kwargs,
     )
-
-    # UDS sockets are **really** fast to bind()/listen()/connect()
-    # so it's often required that we delay a bit more starting
-    # the first actor-tree..
-    if tpt_proto == 'uds':
-        global _PROC_SPAWN_WAIT
-        _PROC_SPAWN_WAIT = 0.6
-
-    time.sleep(_PROC_SPAWN_WAIT)
-
     assert not proc.returncode
+    time.sleep(_PROC_SPAWN_WAIT)
     yield proc
     sig_prog(proc, _INT_SIGNAL)
-
-    # XXX! yeah.. just be reaaal careful with this bc sometimes it
-    # can lock up on the `_io.BufferedReader` and hang..
-    stderr: str = proc.stderr.read().decode()
-    if stderr:
-        print(
-            f'Daemon actor tree produced STDERR:\n'
-            f'{proc.args}\n'
-            f'\n'
-            f'{stderr}\n'
-        )
-    if proc.returncode != -2:
-        raise RuntimeError(
-            'Daemon actor tree failed !?\n'
-            f'{proc.args}\n'
-        )
-
-
-# @pytest.fixture(autouse=True)
-# def shared_last_failed(pytestconfig):
-#     val = pytestconfig.cache.get("example/value", None)
-#     breakpoint()
-#     if val is None:
-#         pytestconfig.cache.set("example/value", val)
-#     return val
-
-
-# TODO: a way to let test scripts (like from `examples/`)
-# guarantee they won't `registry_addrs` collide!
-# -[ ] maybe use some kinda standard `def main()` arg-spec that
-#     we can introspect from a fixture that is called from the test
-#     body?
-# -[ ] test and figure out typing for below prototype! Bp
-#
-# @pytest.fixture
-# def set_script_runtime_args(
-#     reg_addr: tuple,
-# ) -> Callable[[...], None]:
-
-#     def import_n_partial_in_args_n_triorun(
-#         script: Path,  # under examples?
-#         **runtime_args,
-#     ) -> Callable[[], Any]:  # a `partial`-ed equiv of `trio.run()`
-
-#         # NOTE, below is taken from
-#         # `.test_advanced_faults.test_ipc_channel_break_during_stream`
-#         mod: ModuleType = import_path(
-#             examples_dir() / 'advanced_faults'
-#             / 'ipc_failure_during_stream.py',
-#             root=examples_dir(),
-#             consider_namespace_packages=False,
-#         )
-#         return partial(
-#             trio.run,
-#             partial(
-#                 mod.main,
-#                 **runtime_args,
-#             )
-#         )
-#     return import_n_partial_in_args_n_triorun

tests/test_advanced_faults.py

@@ -10,9 +10,6 @@ import pytest
 from _pytest.pathlib import import_path
 import trio
 import tractor
-from tractor import (
-    TransportClosed,
-)
 from tractor._testing import (
     examples_dir,
     break_ipc,
@@ -77,7 +74,6 @@ def test_ipc_channel_break_during_stream(
     spawn_backend: str,
     ipc_break: dict|None,
     pre_aclose_msgstream: bool,
-    tpt_proto: str,
 ):
     '''
     Ensure we can have an IPC channel break its connection during
@@ -95,7 +91,7 @@ def test_ipc_channel_break_during_stream(
         # non-`trio` spawners should never hit the hang condition that
         # requires the user to do ctl-c to cancel the actor tree.
         # expect_final_exc = trio.ClosedResourceError
-        expect_final_exc = TransportClosed
+        expect_final_exc = tractor.TransportClosed
 
     mod: ModuleType = import_path(
         examples_dir() / 'advanced_faults'
@@ -108,8 +104,6 @@ def test_ipc_channel_break_during_stream(
     # period" wherein the user eventually hits ctl-c to kill the
     # root-actor tree.
     expect_final_exc: BaseException = KeyboardInterrupt
-    expect_final_cause: BaseException|None = None
-
     if (
         # only expect EoC if trans is broken on the child side,
         ipc_break['break_child_ipc_after'] is not False
@@ -144,9 +138,6 @@ def test_ipc_channel_break_during_stream(
         # a user sending ctl-c by raising a KBI.
         if pre_aclose_msgstream:
             expect_final_exc = KeyboardInterrupt
-            if tpt_proto == 'uds':
-                expect_final_exc = TransportClosed
-                expect_final_cause = trio.BrokenResourceError
 
             # XXX OLD XXX
             # if child calls `MsgStream.aclose()` then expect EoC.
@@ -166,10 +157,6 @@ def test_ipc_channel_break_during_stream(
         if pre_aclose_msgstream:
             expect_final_exc = KeyboardInterrupt
 
-            if tpt_proto == 'uds':
-                expect_final_exc = TransportClosed
-                expect_final_cause = trio.BrokenResourceError
-
     # NOTE when the parent IPC side dies (even if the child does as well
     # but the child fails BEFORE the parent) we always expect the
     # IPC layer to raise a closed-resource, NEVER do we expect
@@ -182,8 +169,8 @@ def test_ipc_channel_break_during_stream(
         and
         ipc_break['break_child_ipc_after'] is False
     ):
+        # expect_final_exc = trio.ClosedResourceError
         expect_final_exc = tractor.TransportClosed
-        expect_final_cause = trio.ClosedResourceError
 
     # BOTH but, PARENT breaks FIRST
     elif (
@@ -194,8 +181,8 @@ def test_ipc_channel_break_during_stream(
             ipc_break['break_parent_ipc_after']
         )
     ):
+        # expect_final_exc = trio.ClosedResourceError
         expect_final_exc = tractor.TransportClosed
-        expect_final_cause = trio.ClosedResourceError
 
     with pytest.raises(
         expected_exception=(
@@ -211,7 +198,6 @@ def test_ipc_channel_break_during_stream(
                     start_method=spawn_backend,
                     loglevel=loglevel,
                     pre_close=pre_aclose_msgstream,
-                    tpt_proto=tpt_proto,
                     **ipc_break,
                 )
             )
@@ -234,15 +220,10 @@ def test_ipc_channel_break_during_stream(
                 )
             cause: Exception = tc.__cause__
             assert (
-                # type(cause) is trio.ClosedResourceError
+                type(cause) is trio.ClosedResourceError
-                type(cause) is expect_final_cause
+                and
-
+                cause.args[0] == 'another task closed this fd'
-                # TODO, should we expect a certain exc-message (per
-                # tpt) as well??
-                # and
-                # cause.args[0] == 'another task closed this fd'
             )
-
             raise
 
     # get raw instance from pytest wrapper

tests/test_discovery.py

@@ -7,9 +7,7 @@ import platform
 from functools import partial
 import itertools
 
-import psutil
 import pytest
-import subprocess
 import tractor
 from tractor._testing import tractor_test
 import trio
@@ -154,23 +152,13 @@ async def unpack_reg(actor_or_portal):
 async def spawn_and_check_registry(
     reg_addr: tuple,
     use_signal: bool,
-    debug_mode: bool = False,
     remote_arbiter: bool = False,
     with_streaming: bool = False,
-    maybe_daemon: tuple[
-        subprocess.Popen,
-        psutil.Process,
-    ]|None = None,
 
 ) -> None:
 
-    if maybe_daemon:
-        popen, proc = maybe_daemon
-        # breakpoint()
-
     async with tractor.open_root_actor(
         registry_addrs=[reg_addr],
-        debug_mode=debug_mode,
     ):
         async with tractor.get_registry(reg_addr) as portal:
             # runtime needs to be up to call this
@@ -188,11 +176,11 @@ async def spawn_and_check_registry(
                 extra = 2  # local root actor + remote arbiter
 
             # ensure current actor is registered
-            registry: dict = await get_reg()
+            registry = await get_reg()
             assert actor.uid in registry
 
             try:
-                async with tractor.open_nursery() as an:
+                async with tractor.open_nursery() as n:
                     async with trio.open_nursery(
                         strict_exception_groups=False,
                     ) as trion:
@@ -201,17 +189,17 @@ async def spawn_and_check_registry(
                         for i in range(3):
                             name = f'a{i}'
                             if with_streaming:
-                                portals[name] = await an.start_actor(
+                                portals[name] = await n.start_actor(
                                     name=name, enable_modules=[__name__])
 
                             else:  # no streaming
-                                portals[name] = await an.run_in_actor(
+                                portals[name] = await n.run_in_actor(
                                     trio.sleep_forever, name=name)
 
                         # wait on last actor to come up
                         async with tractor.wait_for_actor(name):
                             registry = await get_reg()
-                            for uid in an._children:
+                            for uid in n._children:
                                 assert uid in registry
 
                         assert len(portals) + extra == len(registry)
@@ -244,7 +232,6 @@ async def spawn_and_check_registry(
 @pytest.mark.parametrize('use_signal', [False, True])
 @pytest.mark.parametrize('with_streaming', [False, True])
 def test_subactors_unregister_on_cancel(
-    debug_mode: bool,
     start_method,
     use_signal,
     reg_addr,
@@ -261,7 +248,6 @@ def test_subactors_unregister_on_cancel(
                 spawn_and_check_registry,
                 reg_addr,
                 use_signal,
-                debug_mode=debug_mode,
                 remote_arbiter=False,
                 with_streaming=with_streaming,
             ),
@@ -271,8 +257,7 @@ def test_subactors_unregister_on_cancel(
 @pytest.mark.parametrize('use_signal', [False, True])
 @pytest.mark.parametrize('with_streaming', [False, True])
 def test_subactors_unregister_on_cancel_remote_daemon(
-    daemon: subprocess.Popen,
+    daemon,
-    debug_mode: bool,
     start_method,
     use_signal,
     reg_addr,
@@ -288,13 +273,8 @@ def test_subactors_unregister_on_cancel_remote_daemon(
                 spawn_and_check_registry,
                 reg_addr,
                 use_signal,
-                debug_mode=debug_mode,
                 remote_arbiter=True,
                 with_streaming=with_streaming,
-                maybe_daemon=(
-                    daemon,
-                    psutil.Process(daemon.pid)
-                ),
             ),
         )
 
@@ -393,7 +373,7 @@ def test_close_channel_explicit(
 
 @pytest.mark.parametrize('use_signal', [False, True])
 def test_close_channel_explicit_remote_arbiter(
-    daemon: subprocess.Popen,
+    daemon,
     start_method,
     use_signal,
     reg_addr,

tests/test_ringbuf.py

@@ -11,9 +11,6 @@ from tractor.ipc import (
 )
 from tractor._testing.samples import generate_sample_messages
 
-# in case you don't want to melt your cores, uncomment dis!
-pytestmark = pytest.mark.skip
-
 
 @tractor.context
 async def child_read_shm(

tests/test_root_runtime.py

@@ -1,85 +0,0 @@
-'''
-Runtime boot/init sanity.
-
-'''
-
-import pytest
-import trio
-
-import tractor
-from tractor._exceptions import RuntimeFailure
-
-
-@tractor.context
-async def open_new_root_in_sub(
-    ctx: tractor.Context,
-) -> None:
-
-    async with tractor.open_root_actor():
-        pass
-
-
-@pytest.mark.parametrize(
-    'open_root_in',
-    ['root', 'sub'],
-    ids='open_2nd_root_in={}'.format,
-)
-def test_only_one_root_actor(
-    open_root_in: str,
-    reg_addr: tuple,
-    debug_mode: bool
-):
-    '''
-    Verify we specially fail whenever more then one root actor
-    is attempted to be opened within an already opened tree.
-
-    '''
-    async def main():
-        async with tractor.open_nursery() as an:
-
-            if open_root_in == 'root':
-                async with tractor.open_root_actor(
-                    registry_addrs=[reg_addr],
-                ):
-                    pass
-
-            ptl: tractor.Portal = await an.start_actor(
-                name='bad_rooty_boi',
-                enable_modules=[__name__],
-            )
-
-            async with ptl.open_context(
-                open_new_root_in_sub,
-            ) as (ctx, first):
-                pass
-
-    if open_root_in == 'root':
-        with pytest.raises(
-            RuntimeFailure
-        ) as excinfo:
-            trio.run(main)
-
-    else:
-        with pytest.raises(
-            tractor.RemoteActorError,
-        ) as excinfo:
-            trio.run(main)
-
-        assert excinfo.value.boxed_type is RuntimeFailure
-
-
-def test_implicit_root_via_first_nursery(
-    reg_addr: tuple,
-    debug_mode: bool
-):
-    '''
-    The first `ActorNursery` open should implicitly call
-    `_root.open_root_actor()`.
-
-    '''
-    async def main():
-        async with tractor.open_nursery() as an:
-            assert an._implicit_runtime_started
-            assert tractor.current_actor().aid.name == 'root'
-
-    trio.run(main)

tests/test_spawning.py

@@ -2,7 +2,6 @@
 Spawning basics
 
 """
-from functools import partial
 from typing import (
     Any,
 )
@@ -13,95 +12,74 @@ import tractor
 
 from tractor._testing import tractor_test
 
-data_to_pass_down = {
+data_to_pass_down = {'doggy': 10, 'kitty': 4}
-    'doggy': 10,
-    'kitty': 4,
-}
 
 
 async def spawn(
-    should_be_root: bool,
+    is_arbiter: bool,
     data: dict,
     reg_addr: tuple[str, int],
-
-    debug_mode: bool = False,
 ):
+    namespaces = [__name__]
+
     await trio.sleep(0.1)
-    actor = tractor.current_actor(err_on_no_runtime=False)
 
-    if should_be_root:
+    async with tractor.open_root_actor(
-        assert actor is None  # no runtime yet
-        async with (
-            tractor.open_root_actor(
         arbiter_addr=reg_addr,
-            ),
-            tractor.open_nursery() as an,
     ):
-            # now runtime exists
+        actor = tractor.current_actor()
-            actor: tractor.Actor = tractor.current_actor()
+        assert actor.is_arbiter == is_arbiter
-            assert actor.is_arbiter == should_be_root
+        data = data_to_pass_down
 
-            # spawns subproc here
+        if actor.is_arbiter:
-            portal: tractor.Portal = await an.run_in_actor(
+            async with tractor.open_nursery() as nursery:
-                fn=spawn,
 
-                # spawning args
+                # forks here
+                portal = await nursery.run_in_actor(
+                    spawn,
+                    is_arbiter=False,
                     name='sub-actor',
-                enable_modules=[__name__],
+                    data=data,
-
-                # passed to a subactor-recursive RPC invoke
-                # of this same `spawn()` fn.
-                should_be_root=False,
-                data=data_to_pass_down,
                     reg_addr=reg_addr,
+                    enable_modules=namespaces,
                 )
 
-            assert len(an._children) == 1
+                assert len(nursery._children) == 1
                 assert portal.channel.uid in tractor.current_actor()._peers
-
+                # be sure we can still get the result
-            # get result from child subactor
                 result = await portal.result()
                 assert result == 10
                 return result
         else:
-        assert actor.is_arbiter == should_be_root
             return 10
 
 
-def test_run_in_actor_same_func_in_child(
+def test_local_arbiter_subactor_global_state(
-    reg_addr: tuple,
+    reg_addr,
-    debug_mode: bool,
 ):
     result = trio.run(
-        partial(
         spawn,
-            should_be_root=True,
+        True,
-            data=data_to_pass_down,
+        data_to_pass_down,
-            reg_addr=reg_addr,
+        reg_addr,
-            debug_mode=debug_mode,
-        )
     )
     assert result == 10
 
 
 async def movie_theatre_question():
-    '''
+    """A question asked in a dark theatre, in a tangent
-    A question asked in a dark theatre, in a tangent
     (errr, I mean different) process.
-
+    """
-    '''
     return 'have you ever seen a portal?'
 
 
 @tractor_test
 async def test_movie_theatre_convo(start_method):
-    '''
+    """The main ``tractor`` routine.
-    The main ``tractor`` routine.
+    """
+    async with tractor.open_nursery(debug_mode=True) as n:
 
-    '''
+        portal = await n.start_actor(
-    async with tractor.open_nursery(debug_mode=True) as an:
-
-        portal = await an.start_actor(
             'frank',
             # enable the actor to run funcs from this current module
             enable_modules=[__name__],
@@ -140,8 +118,8 @@ async def test_most_beautiful_word(
     with trio.fail_after(1):
         async with tractor.open_nursery(
             debug_mode=debug_mode,
-        ) as an:
+        ) as n:
-            portal = await an.run_in_actor(
+            portal = await n.run_in_actor(
                 cellar_door,
                 return_value=return_value,
                 name='some_linguist',

tractor/_addr.py

@@ -14,151 +14,56 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
 from __future__ import annotations
-from pathlib import Path
 import os
-# import tempfile
+import tempfile
 from uuid import uuid4
 from typing import (
     Protocol,
     ClassVar,
-    # TypeVar,
+    TypeVar,
-    # Union,
+    Union,
-    Type,
+    Type
-    TYPE_CHECKING,
 )
 
-from bidict import bidict
+import trio
-# import trio
+from trio import socket
-from trio import (
-    socket,
-    SocketListener,
-    open_tcp_listeners,
-)
-
-from .log import get_logger
-from ._state import (
-    get_rt_dir,
-    current_actor,
-    is_root_process,
-    _def_tpt_proto,
-)
-
-if TYPE_CHECKING:
-    from ._runtime import Actor
-
-log = get_logger(__name__)
 
 
-# TODO, maybe breakout the netns key to a struct?
+NamespaceType = TypeVar('NamespaceType')
-# class NetNs(Struct)[str, int]:
+AddressType = TypeVar('AddressType')
-#     ...
+StreamType = TypeVar('StreamType')
-
+ListenerType = TypeVar('ListenerType')
-# TODO, can't we just use a type alias
-# for this? namely just some `tuple[str, int, str, str]`?
-#
-# -[ ] would also just be simpler to keep this as SockAddr[tuple]
-#     or something, implying it's just a simple pair of values which can
-#     presumably be mapped to all transports?
-# -[ ] `pydoc socket.socket.getsockname()` delivers a 4-tuple for
-#     ipv6 `(hostaddr, port, flowinfo, scope_id)`.. so how should we
-#     handle that?
-# -[ ] as a further alternative to this wrap()/unwrap() approach we
-#     could just implement `enc/dec_hook()`s for the `Address`-types
-#     and just deal with our internal objs directly and always and
-#     leave it to the codec layer to figure out marshalling?
-#    |_ would mean only one spot to do the `.unwrap()` (which we may
-#       end up needing to call from the hook()s anyway?)
-# -[x] rename to `UnwrappedAddress[Descriptor]` ??
-#    seems like the right name as per,
-#    https://www.geeksforgeeks.org/introduction-to-address-descriptor/
-#
-UnwrappedAddress = (
-    # tcp/udp/uds
-    tuple[
-        str,  # host/domain(tcp), filesys-dir(uds)
-        int|str,  # port/path(uds)
-    ]
-    # ?TODO? should we also include another 2 fields from
-    # our `Aid` msg such that we include the runtime `Actor.uid`
-    # of `.name` and `.uuid`?
-    # - would ensure uniqueness across entire net?
-    # - allows for easier runtime-level filtering of "actors by
-    #   service name"
-)
 
 
-# TODO, maybe rename to `SocketAddress`?
+class Address(Protocol[
-class Address(Protocol):
+    NamespaceType,
-    proto_key: ClassVar[str]
+    AddressType,
-    unwrapped_type: ClassVar[UnwrappedAddress]
+    StreamType,
+    ListenerType
+]):
+
+    name_key: ClassVar[str]
+    address_type: ClassVar[Type[AddressType]]
 
-    # TODO, i feel like an `.is_bound()` is a better thing to
-    # support?
-    # Lke, what use does this have besides a noop and if it's not
-    # valid why aren't we erroring on creation/use?
     @property
     def is_valid(self) -> bool:
         ...
 
-    # TODO, maybe `.netns` is a better name?
     @property
-    def namespace(self) -> tuple[str, int]|None:
+    def namespace(self) -> NamespaceType|None:
-        '''
-        The if-available, OS-specific "network namespace" key.
-
-        '''
-        ...
-
-    @property
-    def bindspace(self) -> str:
-        '''
-        Deliver the socket address' "bindable space" from
-        a `socket.socket.bind()` and thus from the perspective of
-        specific transport protocol domain.
-
-        I.e. for most (layer-4) network-socket protocols this is
-        normally the ipv4/6 address, for UDS this is normally
-        a filesystem (sub-directory).
-
-        For (distributed) network protocols this is normally the routing
-        layer's domain/(ip-)address, though it might also include a "network namespace"
-        key different then the default.
-
-        For local-host-only transports this is either an explicit
-        namespace (with types defined by the OS: netns, Cgroup, IPC,
-        pid, etc. on linux) or failing that the sub-directory in the
-        filesys in which socket/shm files are located *under*.
-
-        '''
         ...
 
     @classmethod
-    def from_addr(cls, addr: UnwrappedAddress) -> Address:
+    def from_addr(cls, addr: AddressType) -> Address:
         ...
 
-    def unwrap(self) -> UnwrappedAddress:
+    def unwrap(self) -> AddressType:
-        '''
-        Deliver the underying minimum field set in
-        a primitive python data type-structure.
-        '''
         ...
 
     @classmethod
-    def get_random(
+    def get_random(cls, namespace: NamespaceType | None = None) -> Address:
-        cls,
-        current_actor: Actor,
-        bindspace: str|None = None,
-    ) -> Address:
         ...
 
-    # TODO, this should be something like a `.get_def_registar_addr()`
-    # or similar since,
-    # - it should be a **host singleton** (not root/tree singleton)
-    # - we **only need this value** when one isn't provided to the
-    #   runtime at boot and we want to implicitly provide a host-wide
-    #   registrar.
-    # - each rooted-actor-tree should likely have its own
-    #   micro-registry (likely the root being it), also see
     @classmethod
     def get_root(cls) -> Address:
         ...
@@ -169,20 +74,25 @@ class Address(Protocol):
     def __eq__(self, other) -> bool:
         ...
 
-    async def open_listener(
+    async def open_stream(self, **kwargs) -> StreamType:
-        self,
+        ...
-        **kwargs,
+
-    ) -> SocketListener:
+    async def open_listener(self, **kwargs) -> ListenerType:
         ...
 
     async def close_listener(self):
         ...
 
 
-class TCPAddress(Address):
+class TCPAddress(Address[
-    proto_key: str = 'tcp'
+    str,
-    unwrapped_type: type = tuple[str, int]
+    tuple[str, int],
-    def_bindspace: str = '127.0.0.1'
+    trio.SocketStream,
+    trio.SocketListener
+]):
+
+    name_key: str = 'tcp'
+    address_type: type = tuple[str, int]
 
     def __init__(
         self,
@@ -194,63 +104,35 @@ class TCPAddress(Address):
             or
             not isinstance(port, int)
         ):
-            raise TypeError(
+            raise TypeError(f'Expected host {host} to be str and port {port} to be int')
-                f'Expected host {host!r} to be str and port {port!r} to be int'
+        self._host = host
-            )
+        self._port = port
-
-        self._host: str = host
-        self._port: int = port
 
     @property
     def is_valid(self) -> bool:
         return self._port != 0
 
     @property
-    def bindspace(self) -> str:
+    def namespace(self) -> str:
-        return self._host
-
-    @property
-    def domain(self) -> str:
         return self._host
 
     @classmethod
-    def from_addr(
+    def from_addr(cls, addr: tuple[str, int]) -> TCPAddress:
-        cls,
-        addr: tuple[str, int]
-    ) -> TCPAddress:
-        match addr:
-            case (str(), int()):
         return TCPAddress(addr[0], addr[1])
-            case _:
-                raise ValueError(
-                    f'Invalid unwrapped address for {cls}\n'
-                    f'{addr}\n'
-                )
 
     def unwrap(self) -> tuple[str, int]:
-        return (
+        return self._host, self._port
-            self._host,
-            self._port,
-        )
 
     @classmethod
-    def get_random(
+    def get_random(cls, namespace: str = '127.0.0.1') -> TCPAddress:
-        cls,
+        return TCPAddress(namespace, 0)
-        bindspace: str = def_bindspace,
-    ) -> TCPAddress:
-        return TCPAddress(bindspace, 0)
 
     @classmethod
     def get_root(cls) -> Address:
-        return TCPAddress(
+        return TCPAddress('127.0.0.1', 1616)
-            '127.0.0.1',
-            1616,
-        )
 
     def __repr__(self) -> str:
-        return (
+        return f'{type(self)} @ {self.unwrap()}'
-            f'{type(self).__name__}[{self.unwrap()}]'
-        )
 
     def __eq__(self, other) -> bool:
         if not isinstance(other, TCPAddress):
@@ -264,11 +146,17 @@ class TCPAddress(Address):
             self._port == other._port
         )
 
-    async def open_listener(
+    async def open_stream(self, **kwargs) -> trio.SocketStream:
-        self,
+        stream = await trio.open_tcp_stream(
-        **kwargs,
+            self._host,
-    ) -> SocketListener:
+            self._port,
-        listeners: list[SocketListener] = await open_tcp_listeners(
+            **kwargs
+        )
+        self._host, self._port = stream.socket.getsockname()[:2]
+        return stream
+
+    async def open_listener(self, **kwargs) -> trio.SocketListener:
+        listeners = await trio.open_tcp_listeners(
             host=self._host,
             port=self._port,
             **kwargs
@@ -282,156 +170,47 @@ class TCPAddress(Address):
         ...
 
 
-def unwrap_sockpath(
+class UDSAddress(Address[
-    sockpath: Path,
+    None,
-) -> tuple[Path, Path]:
+    str,
-    return (
+    trio.SocketStream,
-        sockpath.parent,
+    trio.SocketListener
-        sockpath.name,
+]):
-    )
 
-
+    name_key: str = 'uds'
-class UDSAddress(Address):
+    address_type: type = str
-    # TODO, maybe we should use better field and value
-    # -[x] really this is a `.protocol_key` not a "name" of anything.
-    # -[ ] consider a 'unix' proto-key instead?
-    # -[ ] need to check what other mult-transport frameworks do
-    #     like zmq, nng, uri-spec et al!
-    proto_key: str = 'uds'
-    unwrapped_type: type = tuple[str, int]
-    def_bindspace: Path = get_rt_dir()
 
     def __init__(
         self,
-        filedir: Path|str|None,
+        filepath: str
-        # TODO, i think i want `.filename` here?
-        filename: str|Path,
-
-        # XXX, in the sense you can also pass
-        # a "non-real-world-process-id" such as is handy to represent
-        # our host-local default "port-like" key for the very first
-        # root actor to create a registry address.
-        maybe_pid: int|None = None,
     ):
-        fdir = self._filedir = Path(
+        self._filepath = filepath
-            filedir
-            or
-            self.def_bindspace
-        ).absolute()
-        fpath = self._filename = Path(filename)
-        fp: Path = fdir / fpath
-        assert (
-            fp.is_absolute()
-            and
-            fp == self.sockpath
-        )
-
-        # to track which "side" is the peer process by reading socket
-        # credentials-info.
-        self._pid: int = maybe_pid
-
-    @property
-    def sockpath(self) -> Path:
-        return self._filedir / self._filename
 
     @property
     def is_valid(self) -> bool:
-        '''
+        return True
-        We block socket files not allocated under the runtime subdir.
-
-        '''
-        return self.bindspace in self.sockpath.parents
 
     @property
-    def bindspace(self) -> Path:
+    def namespace(self) -> None:
-        '''
+        return
-        We replicate the "ip-set-of-hosts" part of a UDS socket as
-        just the sub-directory in which we allocate socket files.
-
-        '''
-        return self._filedir or self.def_bindspace
 
     @classmethod
-    def from_addr(
+    def from_addr(cls, filepath: str) -> UDSAddress:
-        cls,
+        return UDSAddress(filepath)
-        addr: (
-            tuple[Path|str, Path|str]|Path|str
-        ),
-    ) -> UDSAddress:
-        match addr:
-            case tuple()|list():
-                filedir = Path(addr[0])
-                filename = Path(addr[1])
-                # sockpath: Path = Path(addr[0])
-                # filedir, filename = unwrap_sockpath(sockpath)
-                # pid: int = addr[1]
-                return UDSAddress(
-                    filedir=filedir,
-                    filename=filename,
-                    # maybe_pid=pid,
-                )
-            # NOTE, in case we ever decide to just `.unwrap()`
-            # to a `Path|str`?
-            case str()|Path():
-                sockpath: Path = Path(addr)
-                return UDSAddress(*unwrap_sockpath(sockpath))
-            case _:
-                # import pdbp; pdbp.set_trace()
-                raise TypeError(
-                    f'Bad unwrapped-address for {cls} !\n'
-                    f'{addr!r}\n'
-                )
 
-    def unwrap(self) -> tuple[str, int]:
+    def unwrap(self) -> str:
-        # XXX NOTE, since this gets passed DIRECTLY to
+        return self._filepath
-        # `.ipc._uds.open_unix_socket_w_passcred()`
-        return (
-            str(self._filedir),
-            str(self._filename),
-        )
 
     @classmethod
-    def get_random(
+    def get_random(cls, namespace: None = None) -> UDSAddress:
-        cls,
+        return UDSAddress(f'{tempfile.gettempdir()}/{uuid4()}.sock')
-        bindspace: Path|None = None,  # default netns
-    ) -> UDSAddress:
-
-        filedir: Path = bindspace or cls.def_bindspace
-        pid: int = os.getpid()
-        actor: Actor|None = current_actor(
-            err_on_no_runtime=False,
-        )
-        if actor:
-            sockname: str = '::'.join(actor.uid) + f'@{pid}'
-        else:
-            prefix: str = '<unknown-actor>'
-            if is_root_process():
-                prefix: str = 'root'
-            sockname: str = f'{prefix}@{pid}'
-
-        sockpath: Path = Path(f'{sockname}.sock')
-        return UDSAddress(
-            filedir=filedir,
-            filename=sockpath,
-            maybe_pid=pid,
-        )
 
     @classmethod
     def get_root(cls) -> Address:
-        def_uds_filename: Path = 'registry@1616.sock'
+        return UDSAddress('tractor.sock')
-        return UDSAddress(
-            filedir=None,
-            filename=def_uds_filename,
-            # maybe_pid=1616,
-        )
 
     def __repr__(self) -> str:
-        return (
+        return f'{type(self)} @ {self._filepath}'
-            f'{type(self).__name__}'
-            f'['
-            f'({self._filedir}, {self._filename})'
-            f']'
-        )
 
     def __eq__(self, other) -> bool:
         if not isinstance(other, UDSAddress):
@@ -439,144 +218,92 @@ class UDSAddress(Address):
                 f'Can not compare {type(other)} with {type(self)}'
             )
 
-        return self.sockpath == other.sockpath
+        return self._filepath == other._filepath
 
-    # async def open_listener(self, **kwargs) -> SocketListener:
+    async def open_stream(self, **kwargs) -> trio.SocketStream:
-    async def open_listener(
+        stream = await trio.open_unix_socket(
-        self,
+            self._filepath,
-        **kwargs,
+            **kwargs
-    ) -> SocketListener:
-        sock = self._sock = socket.socket(
-            socket.AF_UNIX,
-            socket.SOCK_STREAM
-        )
-        log.info(
-            f'Attempting to bind UDS socket\n'
-            f'>[\n'
-            f'|_{self}\n'
         )
+        return stream
 
-        bindpath: Path = self.sockpath
+    async def open_listener(self, **kwargs) -> trio.SocketListener:
-        await sock.bind(str(bindpath))
+        self._sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
-        sock.listen(1)
+        await self._sock.bind(self._filepath)
-        log.info(
+        self._sock.listen(1)
-            f'Listening on UDS socket\n'
+        return trio.SocketListener(self._sock)
-            f'[>\n'
-            f' |_{self}\n'
-        )
-        return SocketListener(self._sock)
 
-    def close_listener(self):
+    async def close_listener(self):
         self._sock.close()
-        os.unlink(self.sockpath)
+        os.unlink(self._filepath)
 
 
-_address_types: bidict[str, Type[Address]] = {
+preferred_transport = 'uds'
-    'tcp': TCPAddress,
+
-    'uds': UDSAddress
+
+_address_types = (
+    TCPAddress,
+    UDSAddress
+)
+
+
+_default_addrs: dict[str, Type[Address]] = {
+    cls.name_key: cls
+    for cls in _address_types
 }
 
 
-# TODO! really these are discovery sys default addrs ONLY useful for
+AddressTypes = Union[
-# when none is provided to a root actor on first boot.
+    tuple([
+        cls.address_type
+        for cls in _address_types
+    ])
+]
+
+
 _default_lo_addrs: dict[
     str,
-    UnwrappedAddress
+    AddressTypes
 ] = {
-    'tcp': TCPAddress.get_root().unwrap(),
+    cls.name_key: cls.get_root().unwrap()
-    'uds': UDSAddress.get_root().unwrap(),
+    for cls in _address_types
 }
 
 
 def get_address_cls(name: str) -> Type[Address]:
-    return _address_types[name]
+    return _default_addrs[name]
 
 
 def is_wrapped_addr(addr: any) -> bool:
-    return type(addr) in _address_types.values()
+    return type(addr) in _address_types
 
 
-def mk_uuid() -> str:
+def wrap_address(addr: AddressTypes) -> Address:
-    '''
-    Encapsulate creation of a uuid4 as `str` as used
-    for creating `Actor.uid: tuple[str, str]` and/or
-    `.msg.types.Aid`.
 
-    '''
-    return str(uuid4())
-
-
-def wrap_address(
-    addr: UnwrappedAddress
-) -> Address:
-    '''
-    Wrap an `UnwrappedAddress` as an `Address`-type based
-    on matching builtin python data-structures which we adhoc
-    use for each.
-
-    XXX NOTE, careful care must be placed to ensure
-    `UnwrappedAddress` cases are **definitely unique** otherwise the
-    wrong transport backend may be loaded and will break many
-    low-level things in our runtime in a not-fun-to-debug way!
-
-    XD
-
-    '''
     if is_wrapped_addr(addr):
         return addr
 
-    cls: Type|None = None
+    cls = None
-    # if 'sock' in addr[0]:
-    #     import pdbp; pdbp.set_trace()
     match addr:
-
+        case str():
-        # classic network socket-address as tuple/list
-        case (
-            (str(), int())
-            |
-            [str(), int()]
-        ):
-            cls = TCPAddress
-
-        case (
-            # (str()|Path(), str()|Path()),
-            # ^TODO? uhh why doesn't this work!?
-
-            (_, filename)
-        ) if type(filename) is str:
             cls = UDSAddress
 
-        # likely an unset UDS or TCP reg address as defaulted in
+        case tuple() | list():
-        # `_state._runtime_vars['_root_mailbox']`
+            cls = TCPAddress
-        #
+
-        # TODO? figure out when/if we even need this?
+        case None:
-        case (
+            cls = get_address_cls(preferred_transport)
-            None
+            addr = cls.get_root().unwrap()
-            |
-            [None, None]
-        ):
-            cls: Type[Address] = get_address_cls(_def_tpt_proto)
-            addr: UnwrappedAddress = cls.get_root().unwrap()
 
         case _:
-            # import pdbp; pdbp.set_trace()
             raise TypeError(
-                f'Can not wrap unwrapped-address ??\n'
+                f'Can not wrap addr {addr} of type {type(addr)}'
-                f'type(addr): {type(addr)!r}\n'
-                f'addr: {addr!r}\n'
             )
 
     return cls.from_addr(addr)
 
 
-def default_lo_addrs(
+def default_lo_addrs(transports: list[str]) -> list[AddressTypes]:
-    transports: list[str],
-) -> list[Type[Address]]:
-    '''
-    Return the default, host-singleton, registry address
-    for an input transport key set.
-
-    '''
     return [
         _default_lo_addrs[transport]
         for transport in transports

tractor/_child.py

@@ -50,8 +50,8 @@ if __name__ == "__main__":
     args = parser.parse_args()
 
     subactor = Actor(
-        name=args.uid[0],
+        args.uid[0],
-        uuid=args.uid[1],
+        uid=args.uid[1],
         loglevel=args.loglevel,
         spawn_method="trio"
     )

tractor/_context.py

@@ -366,7 +366,7 @@ class Context:
             # f'   ---\n'
             f' |_ipc: {self.dst_maddr}\n'
             # f'   dst_maddr{ds}{self.dst_maddr}\n'
-            f"   uid{ds}'{self.chan.aid}'\n"
+            f"   uid{ds}'{self.chan.uid}'\n"
             f"   cid{ds}'{self.cid}'\n"
             # f'   ---\n'
             f'\n'
@@ -945,9 +945,9 @@ class Context:
         reminfo: str = (
             # ' =>\n'
             # f'Context.cancel() => {self.chan.uid}\n'
-            f'\n'
             f'c)=> {self.chan.uid}\n'
-            f'   |_[{self.dst_maddr}\n'
+            # f'{self.chan.uid}\n'
+            f'  |_ @{self.dst_maddr}\n'
             f'    >> {self.repr_rpc}\n'
             # f'    >> {self._nsf}() -> {codec}[dict]:\n\n'
             # TODO: pull msg-type from spec re #320

tractor/_discovery.py

@@ -31,8 +31,9 @@ from tractor.log import get_logger
 from .trionics import gather_contexts
 from .ipc import _connect_chan, Channel
 from ._addr import (
-    UnwrappedAddress,
+    AddressTypes,
     Address,
+    preferred_transport,
     wrap_address
 )
 from ._portal import (
@@ -43,7 +44,6 @@ from ._portal import (
 from ._state import (
     current_actor,
     _runtime_vars,
-    _def_tpt_proto,
 )
 
 if TYPE_CHECKING:
@@ -54,9 +54,7 @@ log = get_logger(__name__)
 
 
 @acm
-async def get_registry(
+async def get_registry(addr: AddressTypes | None = None) -> AsyncGenerator[
-    addr: UnwrappedAddress|None = None,
-) -> AsyncGenerator[
     Portal | LocalPortal | None,
     None,
 ]:
@@ -73,9 +71,7 @@ async def get_registry(
         # (likely a re-entrant call from the arbiter actor)
         yield LocalPortal(
             actor,
-            Channel(transport=None)
+            await Channel.from_addr(addr)
-            # ^XXX, we DO NOT actually provide nor connect an
-            # underlying transport since this is merely an API shim.
         )
     else:
         # TODO: try to look pre-existing connection from
@@ -139,10 +135,10 @@ def get_peer_by_name(
 @acm
 async def query_actor(
     name: str,
-    regaddr: UnwrappedAddress|None = None,
+    regaddr: AddressTypes|None = None,
 
 ) -> AsyncGenerator[
-    UnwrappedAddress|None,
+    AddressTypes|None,
     None,
 ]:
     '''
@@ -172,7 +168,7 @@ async def query_actor(
     async with get_registry(regaddr) as reg_portal:
         # TODO: return portals to all available actors - for now
         # just the last one that registered
-        addr: UnwrappedAddress = await reg_portal.run_from_ns(
+        addr: AddressTypes = await reg_portal.run_from_ns(
             'self',
             'find_actor',
             name=name,
@@ -182,7 +178,7 @@ async def query_actor(
 
 @acm
 async def maybe_open_portal(
-    addr: UnwrappedAddress,
+    addr: AddressTypes,
     name: str,
 ):
     async with query_actor(
@@ -202,8 +198,8 @@ async def maybe_open_portal(
 @acm
 async def find_actor(
     name: str,
-    registry_addrs: list[UnwrappedAddress]|None = None,
+    registry_addrs: list[AddressTypes]|None = None,
-    enable_transports: list[str] = [_def_tpt_proto],
+    enable_transports: list[str] = [preferred_transport],
 
     only_first: bool = True,
     raise_on_none: bool = False,
@@ -238,7 +234,7 @@ async def find_actor(
         )
 
     maybe_portals: list[
-        AsyncContextManager[UnwrappedAddress]
+        AsyncContextManager[AddressTypes]
     ] = list(
         maybe_open_portal(
             addr=addr,
@@ -280,7 +276,7 @@ async def find_actor(
 @acm
 async def wait_for_actor(
     name: str,
-    registry_addr: UnwrappedAddress | None = None,
+    registry_addr: AddressTypes | None = None,
 
 ) -> AsyncGenerator[Portal, None]:
     '''
@@ -297,7 +293,7 @@ async def wait_for_actor(
             yield peer_portal
             return
 
-    regaddr: UnwrappedAddress = (
+    regaddr: AddressTypes = (
         registry_addr
         or
         actor.reg_addrs[0]
@@ -314,7 +310,7 @@ async def wait_for_actor(
 
         # get latest registered addr by default?
         # TODO: offer multi-portal yields in multi-homed case?
-        addr: UnwrappedAddress = addrs[-1]
+        addr: AddressTypes = addrs[-1]
 
         async with _connect_chan(addr) as chan:
             async with open_portal(chan) as portal:

tractor/_entry.py

@@ -37,7 +37,7 @@ from .log import (
 from . import _state
 from .devx import _debug
 from .to_asyncio import run_as_asyncio_guest
-from ._addr import UnwrappedAddress
+from ._addr import AddressTypes
 from ._runtime import (
     async_main,
     Actor,
@@ -53,10 +53,10 @@ log = get_logger(__name__)
 def _mp_main(
 
     actor: Actor,
-    accept_addrs: list[UnwrappedAddress],
+    accept_addrs: list[AddressTypes],
     forkserver_info: tuple[Any, Any, Any, Any, Any],
     start_method: SpawnMethodKey,
-    parent_addr: UnwrappedAddress | None = None,
+    parent_addr: AddressTypes | None = None,
     infect_asyncio: bool = False,
 
 ) -> None:
@@ -207,7 +207,7 @@ def nest_from_op(
 def _trio_main(
     actor: Actor,
     *,
-    parent_addr: UnwrappedAddress|None = None,
+    parent_addr: AddressTypes | None = None,
     infect_asyncio: bool = False,
 
 ) -> None:

tractor/_exceptions.py

@@ -23,6 +23,7 @@ import builtins
 import importlib
 from pprint import pformat
 from pdb import bdb
+import sys
 from types import (
     TracebackType,
 )
@@ -71,22 +72,8 @@ log = get_logger('tractor')
 _this_mod = importlib.import_module(__name__)
 
 
-class RuntimeFailure(RuntimeError):
+class ActorFailure(Exception):
-    '''
+    "General actor failure"
-    General `Actor`-runtime failure due to,
-
-    - a bad runtime-env,
-    - falied spawning (bad input to process),
-    -   API usage.
-
-    '''
-
-
-class ActorFailure(RuntimeFailure):
-    '''
-    `Actor` failed to boot before/after spawn
-
-    '''
 
 
 class InternalError(RuntimeError):
@@ -139,12 +126,6 @@ class TrioTaskExited(Exception):
     '''
 
 
-class DebugRequestError(RuntimeError):
-    '''
-    Failed to request stdio lock from root actor!
-
-    '''
-
 # NOTE: more or less should be close to these:
 # 'boxed_type',
 # 'src_type',
@@ -210,8 +191,6 @@ def get_err_type(type_name: str) -> BaseException|None:
         ):
             return type_ref
 
-    return None
-
 
 def pack_from_raise(
     local_err: (
@@ -542,6 +521,7 @@ class RemoteActorError(Exception):
             if val:
                 _repr += f'{key}={val_str}{end_char}'
 
+
         return _repr
 
     def reprol(self) -> str:
@@ -620,9 +600,56 @@ class RemoteActorError(Exception):
             the type name is already implicitly shown by python).
 
         '''
+        header: str = ''
+        body: str = ''
+        message: str = ''
+
+        # XXX when the currently raised exception is this instance,
+        # we do not ever use the "type header" style repr.
+        is_being_raised: bool = False
+        if (
+            (exc := sys.exception())
+            and
+            exc is self
+        ):
+            is_being_raised: bool = True
+
+        with_type_header: bool = (
+            with_type_header
+            and
+            not is_being_raised
+        )
+
+        # <RemoteActorError( .. )> style
+        if with_type_header:
+            header: str = f'<{type(self).__name__}('
+
+        if message := self._message:
+
+            # split off the first line so, if needed, it isn't
+            # indented the same like the "boxed content" which
+            # since there is no `.tb_str` is just the `.message`.
+            lines: list[str] = message.splitlines()
+            first: str = lines[0]
+            message: str = message.removeprefix(first)
+
+            # with a type-style header we,
+            # - have no special message "first line" extraction/handling
+            # - place the message a space in from the header:
+            #  `MsgTypeError( <message> ..`
+            #                 ^-here
+            # - indent the `.message` inside the type body.
+            if with_type_header:
+                first = f' {first} )>'
+
+            message: str = textwrap.indent(
+                message,
+                prefix=' '*2,
+            )
+            message: str = first + message
+
         # IFF there is an embedded traceback-str we always
         # draw the ascii-box around it.
-        body: str = ''
         if tb_str := self.tb_str:
             fields: str = self._mk_fields_str(
                 _body_fields
@@ -643,15 +670,21 @@ class RemoteActorError(Exception):
                 boxer_header=self.relay_uid,
             )
 
-        # !TODO, it'd be nice to import these top level without
+        tail = ''
-        # cycles!
+        if (
-        from tractor.devx.pformat import (
+            with_type_header
-            pformat_exc,
+            and not message
-        )
+        ):
-        return pformat_exc(
+            tail: str = '>'
-            exc=self,
+
-            with_type_header=with_type_header,
+        return (
-            body=body,
+            header
+            +
+            message
+            +
+            f'{body}'
+            +
+            tail
         )
 
     __repr__ = pformat
@@ -929,7 +962,7 @@ class StreamOverrun(
     '''
 
 
-class TransportClosed(Exception):
+class TransportClosed(trio.BrokenResourceError):
     '''
     IPC transport (protocol) connection was closed or broke and
     indicates that the wrapping communication `Channel` can no longer
@@ -940,21 +973,16 @@ class TransportClosed(Exception):
         self,
         message: str,
         loglevel: str = 'transport',
-        src_exc: Exception|None = None,
+        cause: BaseException|None = None,
         raise_on_report: bool = False,
 
     ) -> None:
         self.message: str = message
-        self._loglevel: str = loglevel
+        self._loglevel = loglevel
         super().__init__(message)
 
-        self.src_exc = src_exc
+        if cause is not None:
-        if (
+            self.__cause__ = cause
-            src_exc is not None
-            and
-            not self.__cause__
-        ):
-            self.__cause__ = src_exc
 
         # flag to toggle whether the msg loop should raise
         # the exc in its `TransportClosed` handler block.
@@ -981,36 +1009,13 @@ class TransportClosed(Exception):
                 f'    {cause}\n'  # exc repr
             )
 
-        getattr(
+        getattr(log, self._loglevel)(message)
-            log,
-            self._loglevel
-        )(message)
 
         # some errors we want to blow up from
         # inside the RPC msg loop
         if self._raise_on_report:
             raise self from cause
 
-    def pformat(self) -> str:
-        from tractor.devx.pformat import (
-            pformat_exc,
-        )
-        src_err: Exception|None = self.src_exc or '<unknown>'
-        src_msg: tuple[str] = src_err.args
-        src_exc_repr: str = (
-            f'{type(src_err).__name__}[ {src_msg} ]'
-        )
-        return pformat_exc(
-            exc=self,
-            # message=self.message,  # implicit!
-            body=(
-                f' |_src_exc: {src_exc_repr}\n'
-            ),
-        )
-
-    # delegate to `str`-ified pformat
-    __repr__ = pformat
-
 
 class NoResult(RuntimeError):
     "No final result is expected for this actor"

tractor/_portal.py

@@ -107,10 +107,6 @@ class Portal:
         # point.
         self._expect_result_ctx: Context|None = None
         self._streams: set[MsgStream] = set()
-
-        # TODO, this should be PRIVATE (and never used publicly)! since it's just
-        # a cached ref to the local runtime instead of calling
-        # `current_actor()` everywhere.. XD
         self.actor: Actor = current_actor()
 
     @property
@@ -175,7 +171,7 @@ class Portal:
         # not expecting a "main" result
         if self._expect_result_ctx is None:
             log.warning(
-                f"Portal for {self.channel.aid} not expecting a final"
+                f"Portal for {self.channel.uid} not expecting a final"
                 " result?\nresult() should only be called if subactor"
                 " was spawned with `ActorNursery.run_in_actor()`")
             return NoResult
@@ -222,7 +218,7 @@ class Portal:
         # IPC calls
         if self._streams:
             log.cancel(
-                f"Cancelling all streams with {self.channel.aid}")
+                f"Cancelling all streams with {self.channel.uid}")
             for stream in self._streams.copy():
                 try:
                     await stream.aclose()
@@ -267,7 +263,7 @@ class Portal:
             return False
 
         reminfo: str = (
-            f'c)=> {self.channel.aid}\n'
+            f'c)=> {self.channel.uid}\n'
             f'  |_{chan}\n'
         )
         log.cancel(
@@ -310,7 +306,7 @@ class Portal:
         ):
             log.debug(
                 'IPC chan for actor already closed or broken?\n\n'
-                f'{self.channel.aid}\n'
+                f'{self.channel.uid}\n'
                 f' |_{self.channel}\n'
             )
             return False
@@ -508,12 +504,8 @@ class LocalPortal:
         return it's result.
 
         '''
-        obj = (
+        obj = self.actor if ns == 'self' else importlib.import_module(ns)
-            self.actor
+        func = getattr(obj, func_name)
-            if ns == 'self'
-            else importlib.import_module(ns)
-        )
-        func: Callable = getattr(obj, func_name)
         return await func(**kwargs)
 
 
@@ -551,10 +543,8 @@ async def open_portal(
             await channel.connect()
             was_connected = True
 
-        if channel.aid is None:
+        if channel.uid is None:
-            await channel._do_handshake(
+            await actor._do_handshake(channel)
-                aid=actor.aid,
-            )
 
         msg_loop_cs: trio.CancelScope|None = None
         if start_msg_loop:

tractor/_root.py

@@ -18,9 +18,7 @@
 Root actor runtime ignition(s).
 
 '''
-from contextlib import (
+from contextlib import asynccontextmanager as acm
-    asynccontextmanager as acm,
-)
 from functools import partial
 import importlib
 import inspect
@@ -28,10 +26,7 @@ import logging
 import os
 import signal
 import sys
-from typing import (
+from typing import Callable
-    Any,
-    Callable,
-)
 import warnings
 
 
@@ -52,105 +47,28 @@ from .ipc import (
     _connect_chan,
 )
 from ._addr import (
-    Address,
+    AddressTypes,
-    UnwrappedAddress,
-    default_lo_addrs,
-    mk_uuid,
     wrap_address,
+    preferred_transport,
+    default_lo_addrs
 )
-from ._exceptions import (
+from ._exceptions import is_multi_cancelled
-    RuntimeFailure,
-    is_multi_cancelled,
-)
 
 
 logger = log.get_logger('tractor')
 
 
-# TODO: stick this in a `@acm` defined in `devx._debug`?
-# -[ ] also maybe consider making this a `wrapt`-deco to
-#     save an indent level?
-#
-@acm
-async def maybe_block_bp(
-    debug_mode: bool,
-    maybe_enable_greenback: bool,
-) -> bool:
-    # Override the global debugger hook to make it play nice with
-    # ``trio``, see much discussion in:
-    # https://github.com/python-trio/trio/issues/1155#issuecomment-742964018
-    builtin_bp_handler: Callable = sys.breakpointhook
-    orig_bp_path: str|None = os.environ.get(
-        'PYTHONBREAKPOINT',
-        None,
-    )
-    bp_blocked: bool
-    if (
-        debug_mode
-        and maybe_enable_greenback
-        and (
-            maybe_mod := await _debug.maybe_init_greenback(
-                raise_not_found=False,
-            )
-        )
-    ):
-        logger.info(
-            f'Found `greenback` installed @ {maybe_mod}\n'
-            'Enabling `tractor.pause_from_sync()` support!\n'
-        )
-        os.environ['PYTHONBREAKPOINT'] = (
-            'tractor.devx._debug._sync_pause_from_builtin'
-        )
-        _state._runtime_vars['use_greenback'] = True
-        bp_blocked = False
-
-    else:
-        # TODO: disable `breakpoint()` by default (without
-        # `greenback`) since it will break any multi-actor
-        # usage by a clobbered TTY's stdstreams!
-        def block_bps(*args, **kwargs):
-            raise RuntimeError(
-                'Trying to use `breakpoint()` eh?\n\n'
-                'Welp, `tractor` blocks `breakpoint()` built-in calls by default!\n'
-                'If you need to use it please install `greenback` and set '
-                '`debug_mode=True` when opening the runtime '
-                '(either via `.open_nursery()` or `open_root_actor()`)\n'
-            )
-
-        sys.breakpointhook = block_bps
-        # lol ok,
-        # https://docs.python.org/3/library/sys.html#sys.breakpointhook
-        os.environ['PYTHONBREAKPOINT'] = "0"
-        bp_blocked = True
-
-    try:
-        yield bp_blocked
-    finally:
-        # restore any prior built-in `breakpoint()` hook state
-        if builtin_bp_handler is not None:
-            sys.breakpointhook = builtin_bp_handler
-
-        if orig_bp_path is not None:
-            os.environ['PYTHONBREAKPOINT'] = orig_bp_path
-
-        else:
-            # clear env back to having no entry
-            os.environ.pop('PYTHONBREAKPOINT', None)
-
-
-
 @acm
 async def open_root_actor(
+
     *,
     # defaults are above
-    registry_addrs: list[UnwrappedAddress]|None = None,
+    registry_addrs: list[AddressTypes]|None = None,
 
     # defaults are above
-    arbiter_addr: tuple[UnwrappedAddress]|None = None,
+    arbiter_addr: tuple[AddressTypes]|None = None,
 
-    enable_transports: list[
+    enable_transports: list[str] = [preferred_transport],
-        _state.TransportProtocolKey,
-    ] = [_state._def_tpt_proto],
 
     name: str|None = 'root',
 
@@ -192,30 +110,55 @@ async def open_root_actor(
     Runtime init entry point for ``tractor``.
 
     '''
-    # XXX NEVER allow nested actor-trees!
-    if already_actor := _state.current_actor(err_on_no_runtime=False):
-        rtvs: dict[str, Any] = _state._runtime_vars
-        root_mailbox: list[str, int] = rtvs['_root_mailbox']
-        registry_addrs: list[list[str, int]] = rtvs['_registry_addrs']
-        raise RuntimeFailure(
-            f'A current actor already exists !?\n'
-            f'({already_actor}\n'
-            f'\n'
-            f'You can NOT open a second root actor from within '
-            f'an existing tree and the current root of this '
-            f'already exists !!\n'
-            f'\n'
-            f'_root_mailbox: {root_mailbox!r}\n'
-            f'_registry_addrs: {registry_addrs!r}\n'
-        )
-
-    async with maybe_block_bp(
-        debug_mode=debug_mode,
-        maybe_enable_greenback=maybe_enable_greenback,
-    ):
     _debug.hide_runtime_frames()
     __tracebackhide__: bool = hide_tb
 
+    # TODO: stick this in a `@cm` defined in `devx._debug`?
+    #
+    # Override the global debugger hook to make it play nice with
+    # ``trio``, see much discussion in:
+    # https://github.com/python-trio/trio/issues/1155#issuecomment-742964018
+    builtin_bp_handler: Callable = sys.breakpointhook
+    orig_bp_path: str|None = os.environ.get(
+        'PYTHONBREAKPOINT',
+        None,
+    )
+    if (
+        debug_mode
+        and maybe_enable_greenback
+        and (
+            maybe_mod := await _debug.maybe_init_greenback(
+                raise_not_found=False,
+            )
+        )
+    ):
+        logger.info(
+            f'Found `greenback` installed @ {maybe_mod}\n'
+            'Enabling `tractor.pause_from_sync()` support!\n'
+        )
+        os.environ['PYTHONBREAKPOINT'] = (
+            'tractor.devx._debug._sync_pause_from_builtin'
+        )
+        _state._runtime_vars['use_greenback'] = True
+
+    else:
+        # TODO: disable `breakpoint()` by default (without
+        # `greenback`) since it will break any multi-actor
+        # usage by a clobbered TTY's stdstreams!
+        def block_bps(*args, **kwargs):
+            raise RuntimeError(
+                'Trying to use `breakpoint()` eh?\n\n'
+                'Welp, `tractor` blocks `breakpoint()` built-in calls by default!\n'
+                'If you need to use it please install `greenback` and set '
+                '`debug_mode=True` when opening the runtime '
+                '(either via `.open_nursery()` or `open_root_actor()`)\n'
+            )
+
+        sys.breakpointhook = block_bps
+        # lol ok,
+        # https://docs.python.org/3/library/sys.html#sys.breakpointhook
+        os.environ['PYTHONBREAKPOINT'] = "0"
+
     # attempt to retreive ``trio``'s sigint handler and stash it
     # on our debugger lock state.
     _debug.DebugStatus._trio_handler = signal.getsignal(signal.SIGINT)
@@ -242,7 +185,6 @@ async def open_root_actor(
     if start_method is not None:
         _spawn.try_set_start_method(start_method)
 
-        # TODO! remove this ASAP!
     if arbiter_addr is not None:
         warnings.warn(
             '`arbiter_addr` is now deprecated\n'
@@ -253,9 +195,7 @@ async def open_root_actor(
         registry_addrs = [arbiter_addr]
 
     if not registry_addrs:
-            registry_addrs: list[UnwrappedAddress] = default_lo_addrs(
+        registry_addrs: list[AddressTypes] = default_lo_addrs(enable_transports)
-                enable_transports
-            )
 
     assert registry_addrs
 
@@ -305,10 +245,10 @@ async def open_root_actor(
         enable_stack_on_sig()
 
     # closed into below ping task-func
-        ponged_addrs: list[UnwrappedAddress] = []
+    ponged_addrs: list[AddressTypes] = []
 
     async def ping_tpt_socket(
-            addr: UnwrappedAddress,
+        addr: AddressTypes,
         timeout: float = 1,
     ) -> None:
         '''
@@ -344,7 +284,7 @@ async def open_root_actor(
                 addr,
             )
 
-        trans_bind_addrs: list[UnwrappedAddress] = []
+    trans_bind_addrs: list[AddressTypes] = []
 
     # Create a new local root-actor instance which IS NOT THE
     # REGISTRAR
@@ -362,7 +302,6 @@ async def open_root_actor(
 
         actor = Actor(
             name=name or 'anonymous',
-                uuid=mk_uuid(),
             registry_addrs=ponged_addrs,
             loglevel=loglevel,
             enable_modules=enable_modules,
@@ -370,9 +309,10 @@ async def open_root_actor(
         # DO NOT use the registry_addrs as the transport server
         # addrs for this new non-registar, root-actor.
         for addr in ponged_addrs:
-                waddr: Address = wrap_address(addr)
+            waddr = wrap_address(addr)
+            print(waddr)
             trans_bind_addrs.append(
-                    waddr.get_random(bindspace=waddr.bindspace)
+                waddr.get_random(namespace=waddr.namespace)
             )
 
     # Start this local actor as the "registrar", aka a regular
@@ -396,8 +336,7 @@ async def open_root_actor(
         # https://github.com/goodboy/tractor/issues/296
 
         actor = Arbiter(
-                name=name or 'registrar',
+            name or 'registrar',
-                uuid=mk_uuid(),
             registry_addrs=registry_addrs,
             loglevel=loglevel,
             enable_modules=enable_modules,
@@ -475,11 +414,7 @@ async def open_root_actor(
                         err,
                     )
                 ):
-                        logger.exception(
+                    logger.exception('Root actor crashed\n')
-                            'Root actor crashed\n'
-                            f'>x)\n'
-                            f' |_{actor}\n'
-                        )
 
                 # ALWAYS re-raise any error bubbled up from the
                 # runtime!
@@ -496,19 +431,30 @@ async def open_root_actor(
                 #         tempn.start_soon(an.exited.wait)
 
                 logger.info(
-                        f'Closing down root actor\n'
+                    'Closing down root actor'
-                        f'>)\n'
-                        f'|_{actor}\n'
                 )
                 await actor.cancel(None)  # self cancel
     finally:
         _state._current_actor = None
         _state._last_actor_terminated = actor
-            logger.runtime(
+
-                f'Root actor terminated\n'
+        # restore built-in `breakpoint()` hook state
-                f')>\n'
+        if (
-                f' |_{actor}\n'
+            debug_mode
-            )
+            and
+            maybe_enable_greenback
+        ):
+            if builtin_bp_handler is not None:
+                sys.breakpointhook = builtin_bp_handler
+
+            if orig_bp_path is not None:
+                os.environ['PYTHONBREAKPOINT'] = orig_bp_path
+
+            else:
+                # clear env back to having no entry
+                os.environ.pop('PYTHONBREAKPOINT', None)
+
+        logger.runtime("Root actor terminated")
 
 
 def run_daemon(
@@ -516,7 +462,7 @@ def run_daemon(
 
     # runtime kwargs
     name: str | None = 'root',
-    registry_addrs: list[UnwrappedAddress]|None = None,
+    registry_addrs: list[AddressTypes]|None = None,
 
     start_method: str | None = None,
     debug_mode: bool = False,

tractor/_rpc.py

@@ -1156,7 +1156,7 @@ async def process_messages(
                                 trio.Event(),
                             )
 
-                    # XXX RUNTIME-SCOPED! remote (likely internal) error
+                    # runtime-scoped remote (internal) error
                     # (^- bc no `Error.cid` -^)
                     #
                     # NOTE: this is the non-rpc error case, that
@@ -1219,10 +1219,8 @@ async def process_messages(
         # -[ ] figure out how this will break with other transports?
         tc.report_n_maybe_raise(
             message=(
-                f'peer IPC channel closed abruptly?\n'
+                f'peer IPC channel closed abruptly?\n\n'
-                f'\n'
+                f'<=x {chan}\n'
-                f'<=x[\n'
-                f'  {chan}\n'
                 f'  |_{chan.raddr}\n\n'
             )
             +

tractor/_runtime.py

@@ -52,7 +52,6 @@ import sys
 from typing import (
     Any,
     Callable,
-    Type,
     TYPE_CHECKING,
 )
 import uuid
@@ -76,11 +75,11 @@ from tractor.msg import (
 )
 from .ipc import Channel
 from ._addr import (
-    UnwrappedAddress,
+    AddressTypes,
     Address,
-    default_lo_addrs,
-    get_address_cls,
     wrap_address,
+    preferred_transport,
+    default_lo_addrs
 )
 from ._context import (
     mk_context,
@@ -183,15 +182,15 @@ class Actor:
     def __init__(
         self,
         name: str,
-        uuid: str,
         *,
         enable_modules: list[str] = [],
+        uid: str|None = None,
         loglevel: str|None = None,
-        registry_addrs: list[UnwrappedAddress]|None = None,
+        registry_addrs: list[AddressTypes]|None = None,
         spawn_method: str|None = None,
 
         # TODO: remove!
-        arbiter_addr: UnwrappedAddress|None = None,
+        arbiter_addr: AddressTypes|None = None,
 
     ) -> None:
         '''
@@ -199,14 +198,12 @@ class Actor:
         phase (aka before a new process is executed).
 
         '''
-        self._aid = msgtypes.Aid(
+        self.name = name
-            name=name,
+        self.uid = (
-            uuid=uuid,
+            name,
-            pid=os.getpid(),
+            uid or str(uuid.uuid4())
         )
-        self._task: trio.Task|None = None
 
-        # state
         self._cancel_complete = trio.Event()
         self._cancel_called_by_remote: tuple[str, tuple]|None = None
         self._cancel_called: bool = False
@@ -233,7 +230,7 @@ class Actor:
                 DeprecationWarning,
                 stacklevel=2,
             )
-            registry_addrs: list[UnwrappedAddress] = [arbiter_addr]
+            registry_addrs: list[AddressTypes] = [arbiter_addr]
 
         # marked by the process spawning backend at startup
         # will be None for the parent most process started manually
@@ -280,97 +277,13 @@ class Actor:
 
         # when provided, init the registry addresses property from
         # input via the validator.
-        self._reg_addrs: list[UnwrappedAddress] = []
+        self._reg_addrs: list[AddressTypes] = []
         if registry_addrs:
-            self.reg_addrs: list[UnwrappedAddress] = registry_addrs
+            self.reg_addrs: list[AddressTypes] = registry_addrs
             _state._runtime_vars['_registry_addrs'] = registry_addrs
 
     @property
-    def aid(self) -> msgtypes.Aid:
+    def reg_addrs(self) -> list[AddressTypes]:
-        '''
-        This process-singleton-actor's "unique actor ID" in struct form.
-
-        See the `tractor.msg.Aid` struct for details.
-
-        '''
-        return self._aid
-
-    @property
-    def name(self) -> str:
-        return self._aid.name
-
-    @property
-    def uid(self) -> tuple[str, str]:
-        '''
-        This process-singleton's "unique (cross-host) ID".
-
-        Delivered from the `.Aid.name/.uuid` fields as a `tuple` pair
-        and should be multi-host unique despite a large distributed
-        process plane.
-
-        '''
-        msg: str = (
-            f'`{type(self).__name__}.uid` is now deprecated.\n'
-            'Use the new `.aid: tractor.msg.Aid` (struct) instead '
-            'which also provides additional named (optional) fields '
-            'beyond just the `.name` and `.uuid`.'
-        )
-        warnings.warn(
-            msg,
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        return (
-            self._aid.name,
-            self._aid.uuid,
-        )
-
-    @property
-    def pid(self) -> int:
-        return self._aid.pid
-
-    def pformat(self) -> str:
-        ds: str = '='
-        parent_uid: tuple|None = None
-        if rent_chan := self._parent_chan:
-            parent_uid = rent_chan.uid
-        peers: list[tuple] = list(self._peer_connected)
-        listen_addrs: str = pformat(self._listen_addrs)
-        fmtstr: str = (
-            f' |_id: {self.aid!r}\n'
-            # f"   aid{ds}{self.aid!r}\n"
-            f"   parent{ds}{parent_uid}\n"
-            f'\n'
-            f' |_ipc: {len(peers)!r} connected peers\n'
-            f"   peers{ds}{peers!r}\n"
-            f"   _listen_addrs{ds}'{listen_addrs}'\n"
-            f"   _listeners{ds}'{self._listeners}'\n"
-            f'\n'
-            f' |_rpc: {len(self._rpc_tasks)} tasks\n'
-            f"   ctxs{ds}{len(self._contexts)}\n"
-            f'\n'
-            f' |_runtime: ._task{ds}{self._task!r}\n'
-            f'   _spawn_method{ds}{self._spawn_method}\n'
-            f'   _actoruid2nursery{ds}{self._actoruid2nursery}\n'
-            f'   _forkserver_info{ds}{self._forkserver_info}\n'
-            f'\n'
-            f' |_state: "TODO: .repr_state()"\n'
-            f'   _cancel_complete{ds}{self._cancel_complete}\n'
-            f'   _cancel_called_by_remote{ds}{self._cancel_called_by_remote}\n'
-            f'   _cancel_called{ds}{self._cancel_called}\n'
-        )
-        return (
-            '<Actor(\n'
-            +
-            fmtstr
-            +
-            ')>\n'
-        )
-
-    __repr__ = pformat
-
-    @property
-    def reg_addrs(self) -> list[UnwrappedAddress]:
         '''
         List of (socket) addresses for all known (and contactable)
         registry actors.
@@ -381,7 +294,7 @@ class Actor:
     @reg_addrs.setter
     def reg_addrs(
         self,
-        addrs: list[UnwrappedAddress],
+        addrs: list[AddressTypes],
     ) -> None:
         if not addrs:
             log.warning(
@@ -507,23 +420,14 @@ class Actor:
 
         # send/receive initial handshake response
         try:
-            peer_aid: msgtypes.Aid = await chan._do_handshake(
+            uid: tuple|None = await self._do_handshake(chan)
-                aid=self.aid,
-            )
         except (
-            TransportClosed,
+            # we need this for ``msgspec`` for some reason?
-            # ^XXX NOTE, the above wraps `trio` exc types raised
+            # for now, it's been put in the stream backend.
-            # during various `SocketStream.send/receive_xx()` calls
-            # under different fault conditions such as,
-            #
             # trio.BrokenResourceError,
             # trio.ClosedResourceError,
-            #
+
-            # Inside our `.ipc._transport` layer we absorb and
+            TransportClosed,
-            # re-raise our own `TransportClosed` exc such that this
-            # higher level runtime code can only worry one
-            # "kinda-error" that we expect to tolerate during
-            # discovery-sys related pings, queires, DoS etc.
         ):
             # XXX: This may propagate up from `Channel._aiter_recv()`
             # and `MsgpackStream._inter_packets()` on a read from the
@@ -538,12 +442,6 @@ class Actor:
             )
             return
 
-        uid: tuple[str, str] = (
-            peer_aid.name,
-            peer_aid.uuid,
-        )
-        # TODO, can we make this downstream peer tracking use the
-        # `peer_aid` instead?
         familiar: str = 'new-peer'
         if _pre_chan := self._peers.get(uid):
             familiar: str = 'pre-existing-peer'
@@ -1125,12 +1023,11 @@ class Actor:
 
     async def _from_parent(
         self,
-        parent_addr: UnwrappedAddress|None,
+        parent_addr: AddressTypes|None,
 
     ) -> tuple[
         Channel,
-        list[UnwrappedAddress]|None,
+        list[AddressTypes]|None,
-        list[str]|None,  # preferred tpts
     ]:
         '''
         Bootstrap this local actor's runtime config from its parent by
@@ -1142,25 +1039,20 @@ class Actor:
             # Connect back to the parent actor and conduct initial
             # handshake. From this point on if we error, we
             # attempt to ship the exception back to the parent.
-            chan = await Channel.from_addr(
+            chan = await Channel.from_addr(wrap_address(parent_addr))
-                addr=wrap_address(parent_addr)
-            )
-            assert isinstance(chan, Channel)
 
+            # TODO: move this into a `Channel.handshake()`?
             # Initial handshake: swap names.
-            await chan._do_handshake(aid=self.aid)
+            await self._do_handshake(chan)
 
-            accept_addrs: list[UnwrappedAddress]|None = None
+            accept_addrs: list[AddressTypes]|None = None
 
             if self._spawn_method == "trio":
 
                 # Receive post-spawn runtime state from our parent.
                 spawnspec: msgtypes.SpawnSpec = await chan.recv()
-                match spawnspec:
-                    case MsgTypeError():
-                        raise spawnspec
-                    case msgtypes.SpawnSpec():
                 self._spawn_spec = spawnspec
+
                 log.runtime(
                     'Received runtime spec from parent:\n\n'
 
@@ -1170,29 +1062,7 @@ class Actor:
                     # if "trace"/"util" mode is enabled?
                     f'{pretty_struct.pformat(spawnspec)}\n'
                 )
-
+                accept_addrs: list[AddressTypes] = spawnspec.bind_addrs
-                    case _:
-                        raise InternalError(
-                            f'Received invalid non-`SpawnSpec` payload !?\n'
-                            f'{spawnspec}\n'
-                        )
-
-                # ^^TODO XXX!! when the `SpawnSpec` fails to decode
-                # the above will raise a `MsgTypeError` which if we
-                # do NOT ALSO RAISE it will tried to be pprinted in
-                # the log.runtime() below..
-                #
-                # SO we gotta look at how other `chan.recv()` calls
-                # are wrapped and do the same for this spec receive!
-                # -[ ] see `._rpc` likely has the answer?
-                #
-                # XXX NOTE, can't be called here in subactor
-                # bc we haven't yet received the
-                # `SpawnSpec._runtime_vars: dict` which would
-                # declare whether `debug_mode` is set!
-                # breakpoint()
-                # import pdbp; pdbp.set_trace()
-                accept_addrs: list[UnwrappedAddress] = spawnspec.bind_addrs
 
                 # TODO: another `Struct` for rtvs..
                 rvs: dict[str, Any] = spawnspec._runtime_vars
@@ -1284,19 +1154,11 @@ class Actor:
             return (
                 chan,
                 accept_addrs,
-                None,
-                # ^TODO, preferred tpts list from rent!
-                # -[ ] need to extend the `SpawnSpec` tho!
             )
 
-        # failed to connect back?
+        except OSError:  # failed to connect
-        except (
-            OSError,
-            ConnectionError,
-        ):
             log.warning(
                 f'Failed to connect to spawning parent actor!?\n'
-                f'\n'
                 f'x=> {parent_addr}\n'
                 f'|_{self}\n\n'
             )
@@ -1307,13 +1169,12 @@ class Actor:
         self,
         handler_nursery: Nursery,
         *,
-        listen_addrs: list[UnwrappedAddress]|None = None,
+        listen_addrs: list[AddressTypes]|None = None,
 
         task_status: TaskStatus[Nursery] = trio.TASK_STATUS_IGNORED,
     ) -> None:
         '''
-        Start the IPC transport server, begin listening/accepting new
+        Start the IPC transport server, begin listening for new connections.
-        `trio.SocketStream` connections.
 
         This will cause an actor to continue living (and thus
         blocking at the process/OS-thread level) until
@@ -1321,9 +1182,7 @@ class Actor:
 
         '''
         if listen_addrs is None:
-            listen_addrs = default_lo_addrs([
+            listen_addrs = default_lo_addrs([preferred_transport])
-                _state._def_tpt_proto
-            ])
 
         else:
             listen_addrs: list[Address] = [
@@ -1333,24 +1192,10 @@ class Actor:
         self._server_down = trio.Event()
         try:
             async with trio.open_nursery() as server_n:
-
+                listeners: list[trio.abc.Listener] = [
-                listeners: list[trio.abc.Listener] = []
+                    await addr.open_listener()
-                for addr in listen_addrs:
+                    for addr in listen_addrs
-                    try:
+                ]
-                        listener: trio.abc.Listener = await addr.open_listener()
-                    except OSError as oserr:
-                        if (
-                            '[Errno 98] Address already in use'
-                            in
-                            oserr.args#[0]
-                        ):
-                            log.exception(
-                                f'Address already in use?\n'
-                                f'{addr}\n'
-                            )
-                        raise
-                    listeners.append(listener)
-
                 await server_n.start(
                     partial(
                         trio.serve_listeners,
@@ -1363,10 +1208,8 @@ class Actor:
                         handler_nursery=handler_nursery
                     )
                 )
-                # TODO, wow make this message better! XD
+                log.runtime(
-                log.info(
                     'Started server(s)\n'
-                    +
                     '\n'.join([f'|_{addr}' for addr in listen_addrs])
                 )
                 self._listen_addrs.extend(listen_addrs)
@@ -1375,10 +1218,8 @@ class Actor:
                 task_status.started(server_n)
 
         finally:
-            addr: Address
             for addr in listen_addrs:
-                addr.close_listener()
+                await addr.close_listener()
-
             # signal the server is down since nursery above terminated
             self._server_down.set()
 
@@ -1485,13 +1326,8 @@ class Actor:
             if self._server_down is not None:
                 await self._server_down.wait()
             else:
-                tpt_protos: list[str] = []
-                addr: Address
-                for addr in self._listen_addrs:
-                    tpt_protos.append(addr.proto_key)
                 log.warning(
-                    'Transport server(s) may have been cancelled before started?\n'
+                    'Transport[TCP] server was cancelled start?'
-                    f'protos: {tpt_protos!r}\n'
                 )
 
             # cancel all rpc tasks permanently
@@ -1742,7 +1578,7 @@ class Actor:
         return False
 
     @property
-    def accept_addrs(self) -> list[UnwrappedAddress]:
+    def accept_addrs(self) -> list[AddressTypes]:
         '''
         All addresses to which the transport-channel server binds
         and listens for new connections.
@@ -1751,7 +1587,7 @@ class Actor:
         return [a.unwrap() for a in self._listen_addrs]
 
     @property
-    def accept_addr(self) -> UnwrappedAddress:
+    def accept_addr(self) -> AddressTypes:
         '''
         Primary address to which the IPC transport server is
         bound and listening for new connections.
@@ -1778,6 +1614,43 @@ class Actor:
         '''
         return self._peers[uid]
 
+    # TODO: move to `Channel.handshake(uid)`
+    async def _do_handshake(
+        self,
+        chan: Channel
+
+    ) -> msgtypes.Aid:
+        '''
+        Exchange `(name, UUIDs)` identifiers as the first
+        communication step with any (peer) remote `Actor`.
+
+        These are essentially the "mailbox addresses" found in
+        "actor model" parlance.
+
+        '''
+        name, uuid = self.uid
+        await chan.send(
+            msgtypes.Aid(
+                name=name,
+                uuid=uuid,
+            )
+        )
+        aid: msgtypes.Aid = await chan.recv()
+        chan.aid = aid
+
+        uid: tuple[str, str] = (
+            # str(value[0]),
+            # str(value[1])
+            aid.name,
+            aid.uuid,
+        )
+
+        if not isinstance(uid, tuple):
+            raise ValueError(f"{uid} is not a valid uid?!")
+
+        chan.uid = uid
+        return uid
+
     def is_infected_aio(self) -> bool:
         '''
         If `True`, this actor is running `trio` in guest mode on
@@ -1791,7 +1664,7 @@ class Actor:
 
 async def async_main(
     actor: Actor,
-    accept_addrs: UnwrappedAddress|None = None,
+    accept_addrs: AddressTypes|None = None,
 
     # XXX: currently ``parent_addr`` is only needed for the
     # ``multiprocessing`` backend (which pickles state sent to
@@ -1800,7 +1673,7 @@ async def async_main(
     # change this to a simple ``is_subactor: bool`` which will
     # be False when running as root actor and True when as
     # a subactor.
-    parent_addr: UnwrappedAddress|None = None,
+    parent_addr: AddressTypes|None = None,
     task_status: TaskStatus[None] = trio.TASK_STATUS_IGNORED,
 
 ) -> None:
@@ -1815,8 +1688,6 @@ async def async_main(
     the actor's "runtime" and all thus all ongoing RPC tasks.
 
     '''
-    actor._task: trio.Task = trio.lowlevel.current_task()
-
     # attempt to retreive ``trio``'s sigint handler and stash it
     # on our debugger state.
     _debug.DebugStatus._trio_handler = signal.getsignal(signal.SIGINT)
@@ -1826,15 +1697,13 @@ async def async_main(
 
         # establish primary connection with immediate parent
         actor._parent_chan: Channel|None = None
-
         if parent_addr is not None:
+
             (
                 actor._parent_chan,
                 set_accept_addr_says_rent,
-                maybe_preferred_transports_says_rent,
             ) = await actor._from_parent(parent_addr)
 
-            accept_addrs: list[UnwrappedAddress] = []
             # either it's passed in because we're not a child or
             # because we're running in mp mode
             if (
@@ -1843,18 +1712,6 @@ async def async_main(
                 set_accept_addr_says_rent is not None
             ):
                 accept_addrs = set_accept_addr_says_rent
-            else:
-                enable_transports: list[str] = (
-                    maybe_preferred_transports_says_rent
-                    or
-                    [_state._def_tpt_proto]
-                )
-                for transport_key in enable_transports:
-                    transport_cls: Type[Address] = get_address_cls(
-                        transport_key
-                    )
-                    addr: Address = transport_cls.get_random()
-                    accept_addrs.append(addr.unwrap())
 
         # The "root" nursery ensures the channel with the immediate
         # parent is kept alive as a resilient service until
@@ -1922,7 +1779,7 @@ async def async_main(
 
                     raise
 
-                accept_addrs: list[UnwrappedAddress] = actor.accept_addrs
+                accept_addrs: list[AddressTypes] = actor.accept_addrs
 
                 # NOTE: only set the loopback addr for the 
                 # process-tree-global "root" mailbox since
@@ -2135,15 +1992,15 @@ async def async_main(
     log.info(teardown_report)
 
 
-# TODO: rename to `Registry` and move to `.discovery._registry`!
+# TODO: rename to `Registry` and move to `._discovery`!
 class Arbiter(Actor):
     '''
-    A special registrar (and for now..) `Actor` who can contact all
+    A special registrar actor who can contact all other actors
-    other actors within its immediate process tree and possibly keeps
+    within its immediate process tree and possibly keeps a registry
-    a registry of others meant to be discoverable in a distributed
+    of others meant to be discoverable in a distributed
-    application. Normally the registrar is also the "root actor" and
+    application. Normally the registrar is also the "root actor"
-    thus always has access to the top-most-level actor (process)
+    and thus always has access to the top-most-level actor
-    nursery.
+    (process) nursery.
 
     By default, the registrar is always initialized when and if no
     other registrar socket addrs have been specified to runtime
@@ -2163,12 +2020,6 @@ class Arbiter(Actor):
     '''
     is_arbiter = True
 
-    # TODO, implement this as a read on there existing a `._state` of
-    # some sort setup by whenever we impl this all as
-    # a `.discovery._registry.open_registry()` API
-    def is_registry(self) -> bool:
-        return self.is_arbiter
-
     def __init__(
         self,
         *args,
@@ -2177,7 +2028,7 @@ class Arbiter(Actor):
 
         self._registry: dict[
             tuple[str, str],
-            UnwrappedAddress,
+            AddressTypes,
         ] = {}
         self._waiters: dict[
             str,
@@ -2193,7 +2044,7 @@ class Arbiter(Actor):
         self,
         name: str,
 
-    ) -> UnwrappedAddress|None:
+    ) -> AddressTypes|None:
 
         for uid, addr in self._registry.items():
             if name in uid:
@@ -2204,7 +2055,7 @@ class Arbiter(Actor):
     async def get_registry(
         self
 
-    ) -> dict[str, UnwrappedAddress]:
+    ) -> dict[str, AddressTypes]:
         '''
         Return current name registry.
 
@@ -2224,7 +2075,7 @@ class Arbiter(Actor):
         self,
         name: str,
 
-    ) -> list[UnwrappedAddress]:
+    ) -> list[AddressTypes]:
         '''
         Wait for a particular actor to register.
 
@@ -2232,8 +2083,8 @@ class Arbiter(Actor):
         registered.
 
         '''
-        addrs: list[UnwrappedAddress] = []
+        addrs: list[AddressTypes] = []
-        addr: UnwrappedAddress
+        addr: AddressTypes
 
         mailbox_info: str = 'Actor registry contact infos:\n'
         for uid, addr in self._registry.items():
@@ -2259,7 +2110,7 @@ class Arbiter(Actor):
     async def register_actor(
         self,
         uid: tuple[str, str],
-        addr: UnwrappedAddress
+        addr: AddressTypes
     ) -> None:
         uid = name, hash = (str(uid[0]), str(uid[1]))
         waddr: Address = wrap_address(addr)

tractor/_spawn.py

@@ -46,13 +46,12 @@ from tractor._state import (
     _runtime_vars,
 )
 from tractor.log import get_logger
-from tractor._addr import UnwrappedAddress
+from tractor._addr import AddressTypes
 from tractor._portal import Portal
 from tractor._runtime import Actor
 from tractor._entry import _mp_main
 from tractor._exceptions import ActorFailure
 from tractor.msg.types import (
-    Aid,
     SpawnSpec,
 )
 
@@ -165,7 +164,7 @@ async def exhaust_portal(
         # TODO: merge with above?
         log.warning(
             'Cancelled portal result waiter task:\n'
-            f'uid: {portal.channel.aid}\n'
+            f'uid: {portal.channel.uid}\n'
             f'error: {err}\n'
         )
         return err
@@ -173,7 +172,7 @@ async def exhaust_portal(
     else:
         log.debug(
             f'Returning final result from portal:\n'
-            f'uid: {portal.channel.aid}\n'
+            f'uid: {portal.channel.uid}\n'
             f'result: {final}\n'
         )
         return final
@@ -326,12 +325,12 @@ async def soft_kill(
     see `.hard_kill()`).
 
     '''
-    peer_aid: Aid = portal.channel.aid
+    uid: tuple[str, str] = portal.channel.uid
     try:
         log.cancel(
             f'Soft killing sub-actor via portal request\n'
             f'\n'
-            f'(c=> {peer_aid}\n'
+            f'(c=> {portal.chan.uid}\n'
             f'  |_{proc}\n'
         )
         # wait on sub-proc to signal termination
@@ -380,7 +379,7 @@ async def soft_kill(
             if proc.poll() is None:  # type: ignore
                 log.warning(
                     'Subactor still alive after cancel request?\n\n'
-                    f'uid: {peer_aid}\n'
+                    f'uid: {uid}\n'
                     f'|_{proc}\n'
                 )
                 n.cancel_scope.cancel()
@@ -394,8 +393,8 @@ async def new_proc(
     errors: dict[tuple[str, str], Exception],
 
     # passed through to actor main
-    bind_addrs: list[UnwrappedAddress],
+    bind_addrs: list[AddressTypes],
-    parent_addr: UnwrappedAddress,
+    parent_addr: AddressTypes,
     _runtime_vars: dict[str, Any],  # serialized and sent to _child
 
     *,
@@ -433,8 +432,8 @@ async def trio_proc(
     errors: dict[tuple[str, str], Exception],
 
     # passed through to actor main
-    bind_addrs: list[UnwrappedAddress],
+    bind_addrs: list[AddressTypes],
-    parent_addr: UnwrappedAddress,
+    parent_addr: AddressTypes,
     _runtime_vars: dict[str, Any],  # serialized and sent to _child
     *,
     infect_asyncio: bool = False,
@@ -461,9 +460,6 @@ async def trio_proc(
         # the OS; it otherwise can be passed via the parent channel if
         # we prefer in the future (for privacy).
         "--uid",
-        # TODO, how to pass this over "wire" encodings like
-        # cmdline args?
-        # -[ ] maybe we can add an `Aid.min_tuple()` ?
         str(subactor.uid),
         # Address the child must connect to on startup
         "--parent_addr",
@@ -643,8 +639,8 @@ async def mp_proc(
     subactor: Actor,
     errors: dict[tuple[str, str], Exception],
     # passed through to actor main
-    bind_addrs: list[UnwrappedAddress],
+    bind_addrs: list[AddressTypes],
-    parent_addr: UnwrappedAddress,
+    parent_addr: AddressTypes,
     _runtime_vars: dict[str, Any],  # serialized and sent to _child
     *,
     infect_asyncio: bool = False,
@@ -729,8 +725,7 @@ async def mp_proc(
         # channel should have handshake completed by the
         # local actor by the time we get a ref to it
         event, chan = await actor_nursery._actor.wait_for_peer(
-            subactor.uid,
+            subactor.uid)
-        )
 
         # XXX: monkey patch poll API to match the ``subprocess`` API..
         # not sure why they don't expose this but kk.

tractor/_state.py

@@ -14,19 +14,16 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
-'''
+"""
-Per actor-process runtime state mgmt APIs.
+Per process state
 
-'''
+"""
 from __future__ import annotations
 from contextvars import (
     ContextVar,
 )
-import os
-from pathlib import Path
 from typing import (
     Any,
-    Literal,
     TYPE_CHECKING,
 )
 
@@ -146,30 +143,3 @@ def current_ipc_ctx(
             f'|_{current_task()}\n'
         )
     return ctx
-
-
-# std ODE (mutable) app state location
-_rtdir: Path = Path(os.environ['XDG_RUNTIME_DIR'])
-
-
-def get_rt_dir(
-    subdir: str = 'tractor'
-) -> Path:
-    '''
-    Return the user "runtime dir" where most userspace apps stick
-    their IPC and cache related system util-files; we take hold
-    of a `'XDG_RUNTIME_DIR'/tractor/` subdir by default.
-
-    '''
-    rtdir: Path = _rtdir / subdir
-    if not rtdir.is_dir():
-        rtdir.mkdir()
-    return rtdir
-
-
-# default IPC transport protocol settings
-TransportProtocolKey = Literal[
-    'tcp',
-    'uds',
-]
-_def_tpt_proto: TransportProtocolKey = 'tcp'

tractor/_streaming.py

@@ -437,23 +437,22 @@ class MsgStream(trio.abc.Channel):
             message: str = (
                 f'Stream self-closed by {this_side!r}-side before EoC from {peer_side!r}\n'
                 # } bc a stream is a "scope"/msging-phase inside an IPC
-                f'c}}>\n'
+                f'x}}>\n'
                 f'  |_{self}\n'
             )
+            log.cancel(message)
+            self._eoc = trio.EndOfChannel(message)
+
             if (
                 (rx_chan := self._rx_chan)
                 and
                 (stats := rx_chan.statistics()).tasks_waiting_receive
             ):
-                message += (
+                log.cancel(
-                    f'AND there is still reader tasks,\n'
+                    f'Msg-stream is closing but there is still reader tasks,\n'
-                    f'\n'
                     f'{stats}\n'
                 )
 
-            log.cancel(message)
-            self._eoc = trio.EndOfChannel(message)
-
         # ?XXX WAIT, why do we not close the local mem chan `._rx_chan` XXX?
         # => NO, DEFINITELY NOT! <=
         # if we're a bi-dir `MsgStream` BECAUSE this same
@@ -596,17 +595,8 @@ class MsgStream(trio.abc.Channel):
             trio.ClosedResourceError,
             trio.BrokenResourceError,
             BrokenPipeError,
-        ) as _trans_err:
+        ) as trans_err:
-            trans_err = _trans_err
+            if hide_tb:
-            if (
-                hide_tb
-                and
-                self._ctx.chan._exc is trans_err
-                # ^XXX, IOW, only if the channel is marked errored
-                # for the same reason as whatever its underlying
-                # transport raised, do we keep the full low-level tb
-                # suppressed from the user.
-            ):
                 raise type(trans_err)(
                     *trans_err.args
                 ) from trans_err
@@ -812,12 +802,13 @@ async def open_stream_from_ctx(
                 # sanity, can remove?
                 assert eoc is stream._eoc
 
-                log.runtime(
+                log.warning(
                     'Stream was terminated by EoC\n\n'
                     # NOTE: won't show the error <Type> but
                     # does show txt followed by IPC msg.
                     f'{str(eoc)}\n'
                 )
+
         finally:
             if ctx._portal:
                 try:

tractor/_supervise.py

@@ -22,9 +22,7 @@ from contextlib import asynccontextmanager as acm
 from functools import partial
 import inspect
 from pprint import pformat
-from typing import (
+from typing import TYPE_CHECKING
-    TYPE_CHECKING,
-)
 import typing
 import warnings
 
@@ -33,8 +31,9 @@ import trio
 
 from .devx._debug import maybe_wait_for_debugger
 from ._addr import (
-    UnwrappedAddress,
+    AddressTypes,
-    mk_uuid,
+    preferred_transport,
+    get_address_cls
 )
 from ._state import current_actor, is_main_process
 from .log import get_logger, get_loglevel
@@ -44,9 +43,7 @@ from ._exceptions import (
     is_multi_cancelled,
     ContextCancelled,
 )
-from ._root import (
+from ._root import open_root_actor
-    open_root_actor,
-)
 from . import _state
 from . import _spawn
 
@@ -137,9 +134,9 @@ class ActorNursery:
 
         *,
 
-        bind_addrs: list[UnwrappedAddress]|None = None,
+        bind_addrs: list[AddressTypes]|None = None,
         rpc_module_paths: list[str]|None = None,
-        enable_transports: list[str] = [_state._def_tpt_proto],
+        enable_transports: list[str] = [preferred_transport],
         enable_modules: list[str]|None = None,
         loglevel: str|None = None,  # set log level per subactor
         debug_mode: bool|None = None,
@@ -164,6 +161,12 @@ class ActorNursery:
             or get_loglevel()
         )
 
+        if not bind_addrs:
+            bind_addrs: list[AddressTypes] = [
+                get_address_cls(transport).get_random().unwrap()
+                for transport in enable_transports
+            ]
+
         # configure and pass runtime state
         _rtv = _state._runtime_vars.copy()
         _rtv['_is_root'] = False
@@ -186,9 +189,7 @@ class ActorNursery:
             enable_modules.extend(rpc_module_paths)
 
         subactor = Actor(
-            name=name,
+            name,
-            uuid=mk_uuid(),
-
             # modules allowed to invoked funcs from
             enable_modules=enable_modules,
             loglevel=loglevel,
@@ -196,7 +197,7 @@ class ActorNursery:
             # verbatim relay this actor's registrar addresses
             registry_addrs=current_actor().reg_addrs,
         )
-        parent_addr: UnwrappedAddress = self._actor.accept_addr
+        parent_addr = self._actor.accept_addr
         assert parent_addr
 
         # start a task to spawn a process
@@ -234,7 +235,7 @@ class ActorNursery:
         *,
 
         name: str | None = None,
-        bind_addrs: UnwrappedAddress|None = None,
+        bind_addrs: AddressTypes|None = None,
         rpc_module_paths: list[str] | None = None,
         enable_modules: list[str] | None = None,
         loglevel: str | None = None,  # set log level per subactor

tractor/devx/_debug.py

@@ -73,7 +73,6 @@ from tractor.log import get_logger
 from tractor._context import Context
 from tractor import _state
 from tractor._exceptions import (
-    DebugRequestError,
     InternalError,
     NoRuntime,
     is_multi_cancelled,
@@ -1741,6 +1740,13 @@ def sigint_shield(
 _pause_msg: str = 'Opening a pdb REPL in paused actor'
 
 
+class DebugRequestError(RuntimeError):
+    '''
+    Failed to request stdio lock from root actor!
+
+    '''
+
+
 _repl_fail_msg: str|None = (
     'Failed to REPl via `_pause()` '
 )

tractor/devx/pformat.py

@@ -19,7 +19,6 @@ Pretty formatters for use throughout the code base.
 Mostly handy for logging and exception message content.
 
 '''
-import sys
 import textwrap
 import traceback
 
@@ -116,85 +115,6 @@ def pformat_boxed_tb(
     )
 
 
-def pformat_exc(
-    exc: Exception,
-    header: str = '',
-    message: str = '',
-    body: str = '',
-    with_type_header: bool = True,
-) -> str:
-
-    # XXX when the currently raised exception is this instance,
-    # we do not ever use the "type header" style repr.
-    is_being_raised: bool = False
-    if (
-        (curr_exc := sys.exception())
-        and
-        curr_exc is exc
-    ):
-        is_being_raised: bool = True
-
-    with_type_header: bool = (
-        with_type_header
-        and
-        not is_being_raised
-    )
-
-    # <RemoteActorError( .. )> style
-    if (
-        with_type_header
-        and
-        not header
-    ):
-        header: str = f'<{type(exc).__name__}('
-
-    message: str = (
-        message
-        or
-        exc.message
-    )
-    if message:
-        # split off the first line so, if needed, it isn't
-        # indented the same like the "boxed content" which
-        # since there is no `.tb_str` is just the `.message`.
-        lines: list[str] = message.splitlines()
-        first: str = lines[0]
-        message: str = message.removeprefix(first)
-
-        # with a type-style header we,
-        # - have no special message "first line" extraction/handling
-        # - place the message a space in from the header:
-        #  `MsgTypeError( <message> ..`
-        #                 ^-here
-        # - indent the `.message` inside the type body.
-        if with_type_header:
-            first = f' {first} )>'
-
-        message: str = textwrap.indent(
-            message,
-            prefix=' '*2,
-        )
-        message: str = first + message
-
-    tail: str = ''
-    if (
-        with_type_header
-        and
-        not message
-    ):
-        tail: str = '>'
-
-    return (
-        header
-        +
-        message
-        +
-        f'{body}'
-        +
-        tail
-    )
-
-
 def pformat_caller_frame(
     stack_limit: int = 1,
     box_tb: bool = True,

tractor/experimental/_pubsub.py

@@ -45,8 +45,6 @@ __all__ = ['pub']
 log = get_logger('messaging')
 
 
-# TODO! this needs to reworked to use the modern
-# `Context`/`MsgStream` APIs!!
 async def fan_out_to_ctxs(
     pub_async_gen_func: typing.Callable,  # it's an async gen ... gd mypy
     topics2ctxs: dict[str, list],

tractor/ipc/_chan.py

@@ -30,7 +30,6 @@ import typing
 from typing import (
     Any,
 )
-import warnings
 
 import trio
 
@@ -40,20 +39,16 @@ from tractor.ipc._types import (
     transport_from_stream,
 )
 from tractor._addr import (
-    is_wrapped_addr,
     wrap_address,
     Address,
-    UnwrappedAddress,
+    AddressTypes
 )
 from tractor.log import get_logger
 from tractor._exceptions import (
     MsgTypeError,
     pack_from_raise,
 )
-from tractor.msg import (
+from tractor.msg import MsgCodec
-    Aid,
-    MsgCodec,
-)
 
 
 log = get_logger(__name__)
@@ -89,12 +84,11 @@ class Channel:
         # user in ``.from_stream()``.
         self._transport: MsgTransport|None = transport
 
-        # set after handshake - always info from peer end
+        # set after handshake - always uid of far end
-        self.aid: Aid|None = None
+        self.uid: tuple[str, str]|None = None
 
         self._aiter_msgs = self._iter_msgs()
-        self._exc: Exception|None = None
+        self._exc: Exception|None = None  # set if far end actor errors
-        # ^XXX! ONLY set if a remote actor sends an `Error`-msg
         self._closed: bool = False
 
         # flag set by ``Portal.cancel_actor()`` indicating remote
@@ -102,29 +96,6 @@ class Channel:
         # runtime.
         self._cancel_called: bool = False
 
-    @property
-    def uid(self) -> tuple[str, str]:
-        '''
-        Peer actor's unique id.
-
-        '''
-        msg: str = (
-            f'`{type(self).__name__}.uid` is now deprecated.\n'
-            'Use the new `.aid: tractor.msg.Aid` (struct) instead '
-            'which also provides additional named (optional) fields '
-            'beyond just the `.name` and `.uuid`.'
-        )
-        warnings.warn(
-            msg,
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        peer_aid: Aid = self.aid
-        return (
-            peer_aid.name,
-            peer_aid.uuid,
-        )
-
     @property
     def stream(self) -> trio.abc.Stream | None:
         return self._transport.stream if self._transport else None
@@ -153,26 +124,17 @@ class Channel:
     @classmethod
     async def from_addr(
         cls,
-        addr: UnwrappedAddress,
+        addr: AddressTypes,
         **kwargs
     ) -> Channel:
-
-        if not is_wrapped_addr(addr):
         addr: Address = wrap_address(addr)
-
         transport_cls = transport_from_addr(addr)
-        transport = await transport_cls.connect_to(
+        transport = await transport_cls.connect_to(addr, **kwargs)
-            addr,
+
-            **kwargs,
+        log.transport(
+            f'Opened channel[{type(transport)}]: {transport.laddr} -> {transport.raddr}'
         )
-        assert transport.raddr == addr
+        return Channel(transport=transport)
-        chan = Channel(transport=transport)
-        log.runtime(
-            f'Connected channel IPC transport\n'
-            f'[>\n'
-            f' |_{chan}\n'
-        )
-        return chan
 
     @cm
     def apply_codec(
@@ -192,48 +154,16 @@ class Channel:
             self._transport.codec = orig
 
     # TODO: do a .src/.dst: str for maddrs?
-    def pformat(self) -> str:
+    def __repr__(self) -> str:
         if not self._transport:
             return '<Channel with inactive transport?>'
 
-        tpt: MsgTransport = self._transport
+        return repr(
-        tpt_name: str = type(tpt).__name__
+            self._transport
-        tpt_status: str = (
+        ).replace(  # type: ignore
-            'connected' if self.connected()
+            "socket.socket",
-            else 'closed'
+            "Channel",
         )
-        return (
-            f'<Channel(\n'
-            f' |_status: {tpt_status!r}\n'
-            f'   _closed={self._closed}\n'
-            f'   _cancel_called={self._cancel_called}\n'
-            f'\n'
-            f' |_peer: {self.aid}\n'
-            f'\n'
-            f' |_msgstream: {tpt_name}\n'
-            f'   proto={tpt.laddr.proto_key!r}\n'
-            f'   layer={tpt.layer_key!r}\n'
-            f'   laddr={tpt.laddr}\n'
-            f'   raddr={tpt.raddr}\n'
-            f'   codec={tpt.codec_key!r}\n'
-            f'   stream={tpt.stream}\n'
-            f'   maddr={tpt.maddr!r}\n'
-            f'   drained={tpt.drained}\n'
-            f'   _send_lock={tpt._send_lock.statistics()}\n'
-            f')>\n'
-        )
-
-    # NOTE: making this return a value that can be passed to
-    # `eval()` is entirely **optional** FYI!
-    # https://docs.python.org/3/library/functions.html#repr
-    # https://docs.python.org/3/reference/datamodel.html#object.__repr__
-    #
-    # Currently we target **readability** from a (console)
-    # logging perspective over `eval()`-ability since we do NOT
-    # target serializing non-struct instances!
-    # def __repr__(self) -> str:
-    __str__ = pformat
-    __repr__ = pformat
 
     @property
     def laddr(self) -> Address|None:
@@ -305,7 +235,7 @@ class Channel:
     async def aclose(self) -> None:
 
         log.transport(
-            f'Closing channel to {self.aid} '
+            f'Closing channel to {self.uid} '
             f'{self.laddr} -> {self.raddr}'
         )
         assert self._transport
@@ -405,33 +335,10 @@ class Channel:
     def connected(self) -> bool:
         return self._transport.connected() if self._transport else False
 
-    async def _do_handshake(
-        self,
-        aid: Aid,
-
-    ) -> Aid:
-        '''
-        Exchange `(name, UUIDs)` identifiers as the first
-        communication step with any (peer) remote `Actor`.
-
-        These are essentially the "mailbox addresses" found in
-        "actor model" parlance.
-
-        '''
-        await self.send(aid)
-        peer_aid: Aid = await self.recv()
-        log.runtime(
-            f'Received hanshake with peer actor,\n'
-            f'{peer_aid}\n'
-        )
-        # NOTE, we always are referencing the remote peer!
-        self.aid = peer_aid
-        return peer_aid
-
 
 @acm
 async def _connect_chan(
-    addr: UnwrappedAddress
+    addr: AddressTypes
 ) -> typing.AsyncGenerator[Channel, None]:
     '''
     Create and connect a channel with disconnect on context manager

tractor/ipc/_shm.py

@@ -50,10 +50,7 @@ if _USE_POSIX:
 try:
     import numpy as np
     from numpy.lib import recfunctions as rfn
-    # TODO ruff complains with,
+    import nptyping
-    # warning| F401: `nptyping` imported but unused; consider using
-    # `importlib.util.find_spec` to test for availability
-    import nptyping  # noqa
 except ImportError:
     pass
 

tractor/ipc/_tcp.py

@@ -42,16 +42,25 @@ class MsgpackTCPStream(MsgpackTransport):
     address_type = TCPAddress
     layer_key: int = 4
 
+    # def __init__(
+    #     self,
+    #     stream: trio.SocketStream,
+    #     prefix_size: int = 4,
+    #     codec: CodecType = None,
+
+    # ) -> None:
+    #     super().__init__(
+    #         stream,
+    #         prefix_size=prefix_size,
+    #         codec=codec
+    #     )
+
     @property
     def maddr(self) -> str:
         host, port = self.raddr.unwrap()
         return (
-            # TODO, use `ipaddress` from stdlib to handle
-            # first detecting which of `ipv4/6` before
-            # choosing the routing prefix part.
             f'/ipv4/{host}'
-
+            f'/{self.address_type.name_key}/{port}'
-            f'/{self.address_type.proto_key}/{port}'
             # f'/{self.chan.uid[0]}'
             # f'/{self.cid}'
 
@@ -85,15 +94,12 @@ class MsgpackTCPStream(MsgpackTransport):
         cls,
         stream: trio.SocketStream
     ) -> tuple[
-        TCPAddress,
+        tuple[str, int],
-        TCPAddress,
+        tuple[str, int]
     ]:
-        # TODO, what types are these?
         lsockname = stream.socket.getsockname()
-        l_sockaddr: tuple[str, int] = tuple(lsockname[:2])
         rsockname = stream.socket.getpeername()
-        r_sockaddr: tuple[str, int] = tuple(rsockname[:2])
         return (
-            TCPAddress.from_addr(l_sockaddr),
+            TCPAddress.from_addr(tuple(lsockname[:2])),
-            TCPAddress.from_addr(r_sockaddr),
+            TCPAddress.from_addr(tuple(rsockname[:2])),
         )

tractor/ipc/_transport.py

@@ -99,7 +99,7 @@ class MsgTransport(Protocol[MsgType]):
 
     @classmethod
     def key(cls) -> MsgTransportKey:
-        return cls.codec_key, cls.address_type.proto_key
+        return cls.codec_key, cls.address_type.name_key
 
     @property
     def laddr(self) -> Address:
@@ -136,16 +136,6 @@ class MsgTransport(Protocol[MsgType]):
         '''
         ...
 
-    # TODO, such that all `.raddr`s for each `SocketStream` are
-    # delivered?
-    # -[ ] move `.open_listener()` here and internally track the
-    #     listener set, per address?
-    # def get_peers(
-    #     self,
-    # ) -> list[Address]:
-    #     ...
-
-
 
 class MsgpackTransport(MsgTransport):
 
@@ -167,10 +157,7 @@ class MsgpackTransport(MsgTransport):
 
     ) -> None:
         self.stream = stream
-        (
+        self._laddr, self._raddr = self.get_stream_addrs(stream)
-            self._laddr,
-            self._raddr,
-        ) = self.get_stream_addrs(stream)
 
         # create read loop instance
         self._aiter_pkts = self._iter_packets()
@@ -208,7 +195,6 @@ class MsgpackTransport(MsgTransport):
         '''
         decodes_failed: int = 0
 
-        tpt_name: str = f'{type(self).__name__!r}'
         while True:
             try:
                 header: bytes = await self.recv_stream.receive_exactly(4)
@@ -253,9 +239,10 @@ class MsgpackTransport(MsgTransport):
 
                 raise TransportClosed(
                     message=(
-                        f'{tpt_name} already closed by peer\n'
+                        f'IPC transport already closed by peer\n'
+                        f'x)> {type(trans_err)}\n'
+                        f' |_{self}\n'
                     ),
-                    src_exc=trans_err,
                     loglevel=loglevel,
                 ) from trans_err
 
@@ -267,17 +254,18 @@ class MsgpackTransport(MsgTransport):
             #
             # NOTE: as such we always re-raise this error from the
             #       RPC msg loop!
-            except trio.ClosedResourceError as cre:
+            except trio.ClosedResourceError as closure_err:
-                closure_err = cre
-
                 raise TransportClosed(
                     message=(
-                        f'{tpt_name} was already closed locally ?\n'
+                        f'IPC transport already manually closed locally?\n'
+                        f'x)> {type(closure_err)} \n'
+                        f' |_{self}\n'
                     ),
-                    src_exc=closure_err,
                     loglevel='error',
                     raise_on_report=(
-                        'another task closed this fd' in closure_err.args
+                        closure_err.args[0] == 'another task closed this fd'
+                        or
+                        closure_err.args[0] in ['another task closed this fd']
                     ),
                 ) from closure_err
 
@@ -285,9 +273,12 @@ class MsgpackTransport(MsgTransport):
             if header == b'':
                 raise TransportClosed(
                     message=(
-                        f'{tpt_name} already gracefully closed\n'
+                        f'IPC transport already gracefully closed\n'
+                        f')>\n'
+                        f'|_{self}\n'
                     ),
                     loglevel='transport',
+                    # cause=???  # handy or no?
                 )
 
             size: int
@@ -418,39 +409,7 @@ class MsgpackTransport(MsgTransport):
             # supposedly the fastest says,
             # https://stackoverflow.com/a/54027962
             size: bytes = struct.pack("<I", len(bytes_data))
-            try:
             return await self.stream.send_all(size + bytes_data)
-            except (
-                trio.BrokenResourceError,
-            ) as trans_err:
-                loglevel = 'transport'
-                match trans_err:
-                    case trio.BrokenResourceError() if (
-                        '[Errno 32] Broken pipe' in trans_err.args[0]
-                        # ^XXX, specifc to UDS transport and its,
-                        # well, "speediness".. XD
-                        # |_ likely todo with races related to how fast
-                        #    the socket is setup/torn-down on linux
-                        #    as it pertains to rando pings from the
-                        #    `.discovery` subsys and protos.
-                    ):
-                        raise TransportClosed(
-                            message=(
-                                f'IPC transport already closed by peer\n'
-                                f'x)> {type(trans_err)}\n'
-                                f' |_{self}\n'
-                            ),
-                            loglevel=loglevel,
-                        ) from trans_err
-
-                    # unless the disconnect condition falls under "a
-                    # normal operation breakage" we usualy console warn
-                    # about it.
-                    case _:
-                        log.exception(
-                            'Transport layer failed for {self.transport!r} ?\n'
-                        )
-                        raise trans_err
 
         # ?TODO? does it help ever to dynamically show this
         # frame?
@@ -489,16 +448,3 @@ class MsgpackTransport(MsgTransport):
     @property
     def raddr(self) -> Address:
         return self._raddr
-
-    def pformat(self) -> str:
-        return (
-            f'<{type(self).__name__}(\n'
-            f' |_task: {self._task}\n'
-            f'\n'
-            f' |_peers: 2\n'
-            f'   laddr: {self._laddr}\n'
-            f'   raddr: {self._raddr}\n'
-            f')>\n'
-        )
-
-    __repr__ = __str__ = pformat

tractor/ipc/_types.py

@@ -76,7 +76,7 @@ def transport_from_stream(
     '''
     transport = None
     if isinstance(stream, trio.SocketStream):
-        sock: socket.socket = stream.socket
+        sock = stream.socket
         match sock.family:
             case socket.AF_INET | socket.AF_INET6:
                 transport = 'tcp'

tractor/ipc/_uds.py

@@ -18,111 +18,46 @@ Unix Domain Socket implementation of tractor.ipc._transport.MsgTransport protoco
 
 '''
 from __future__ import annotations
-from pathlib import Path
-import os
-from socket import (
-    # socket,
-    AF_UNIX,
-    SOCK_STREAM,
-    SO_PASSCRED,
-    SO_PEERCRED,
-    SOL_SOCKET,
-)
-import struct
 
 import trio
-from trio._highlevel_open_unix_stream import (
-    close_on_error,
-    has_unix,
-)
 
 from tractor.msg import MsgCodec
 from tractor.log import get_logger
-from tractor._addr import (
+from tractor._addr import UDSAddress
-    UDSAddress,
-    unwrap_sockpath,
-)
 from tractor.ipc._transport import MsgpackTransport
 
 
 log = get_logger(__name__)
 
 
-async def open_unix_socket_w_passcred(
-    filename: str|bytes|os.PathLike[str]|os.PathLike[bytes],
-) -> trio.SocketStream:
-    '''
-    Literally the exact same as `trio.open_unix_socket()` except we set the additiona
-    `socket.SO_PASSCRED` option to ensure the server side (the process calling `accept()`)
-    can extract the connecting peer's credentials, namely OS specific process
-    related IDs.
-
-    See this SO for "why" the extra opts,
-    - https://stackoverflow.com/a/7982749
-
-    '''
-    if not has_unix:
-        raise RuntimeError("Unix sockets are not supported on this platform")
-
-    # much more simplified logic vs tcp sockets - one socket type and only one
-    # possible location to connect to
-    sock = trio.socket.socket(AF_UNIX, SOCK_STREAM)
-    sock.setsockopt(SOL_SOCKET, SO_PASSCRED, 1)
-    with close_on_error(sock):
-        await sock.connect(os.fspath(filename))
-
-    return trio.SocketStream(sock)
-
-
-def get_peer_info(sock: trio.socket.socket) -> tuple[
-    int,  # pid
-    int,  # uid
-    int,  # guid
-]:
-    '''
-    Deliver the connecting peer's "credentials"-info as defined in
-    a very Linux specific way..
-
-    For more deats see,
-    - `man accept`,
-    - `man unix`,
-
-    this great online guide to all things sockets,
-    - https://beej.us/guide/bgnet/html/split-wide/man-pages.html#setsockoptman
-
-    AND this **wonderful SO answer**
-    - https://stackoverflow.com/a/7982749
-
-    '''
-    creds: bytes = sock.getsockopt(
-        SOL_SOCKET,
-        SO_PEERCRED,
-        struct.calcsize('3i')
-    )
-    # i.e a tuple of the fields,
-    # pid: int, "process"
-    # uid: int, "user"
-    # gid: int, "group"
-    return struct.unpack('3i', creds)
-
-
 class MsgpackUDSStream(MsgpackTransport):
     '''
-    A `trio.SocketStream` around a Unix-Domain-Socket transport
+    A ``trio.SocketStream`` delivering ``msgpack`` formatted data
-    delivering `msgpack` encoded msgs using the `msgspec` codec lib.
+    using the ``msgspec`` codec lib.
 
     '''
     address_type = UDSAddress
-    layer_key: int = 4
+    layer_key: int = 7
+
+    # def __init__(
+    #     self,
+    #     stream: trio.SocketStream,
+    #     prefix_size: int = 4,
+    #     codec: CodecType = None,
+
+    # ) -> None:
+    #     super().__init__(
+    #         stream,
+    #         prefix_size=prefix_size,
+    #         codec=codec
+    #     )
 
     @property
     def maddr(self) -> str:
-        if not self.raddr:
+        filepath = self.raddr.unwrap()
-            return '<unknown-peer>'
-
-        filepath: Path = Path(self.raddr.unwrap()[0])
         return (
-            f'/{self.address_type.proto_key}/{filepath}'
+            f'/ipv4/localhost'
+            f'/{self.address_type.name_key}/{filepath}'
             # f'/{self.chan.uid[0]}'
             # f'/{self.cid}'
 
@@ -141,76 +76,22 @@ class MsgpackUDSStream(MsgpackTransport):
         codec: MsgCodec|None = None,
         **kwargs
     ) -> MsgpackUDSStream:
-
+        stream = await trio.open_unix_socket(
-
+            addr.unwrap(),
-        sockpath: Path = addr.sockpath
-        #
-        # ^XXX NOTE, we don't provide any out-of-band `.pid` info
-        # (like, over the socket as extra msgs) since the (augmented)
-        # `.setsockopt()` call tells the OS provide it; the client
-        # pid can then be read on server/listen() side via
-        # `get_peer_info()` above.
-        try:
-            stream = await open_unix_socket_w_passcred(
-                str(sockpath),
             **kwargs
         )
-        except (
+        return MsgpackUDSStream(
-            FileNotFoundError,
-        ) as fdne:
-            raise ConnectionError(
-                f'Bad UDS socket-filepath-as-address ??\n'
-                f'{addr}\n'
-                f' |_sockpath: {sockpath}\n'
-            ) from fdne
-
-        stream = MsgpackUDSStream(
             stream,
             prefix_size=prefix_size,
             codec=codec
         )
-        stream._raddr = addr
-        return stream
 
     @classmethod
     def get_stream_addrs(
         cls,
         stream: trio.SocketStream
-    ) -> tuple[
+    ) -> tuple[UDSAddress, UDSAddress]:
-        Path,
+        return (
-        int,
+            UDSAddress.from_addr(stream.socket.getsockname()),
-    ]:
+            UDSAddress.from_addr(stream.socket.getsockname()),
-        sock: trio.socket.socket = stream.socket
-
-        # NOTE XXX, it's unclear why one or the other ends up being
-        # `bytes` versus the socket-file-path, i presume it's
-        # something to do with who is the server (called `.listen()`)?
-        # maybe could be better implemented using another info-query
-        # on the socket like,
-        # https://beej.us/guide/bgnet/html/split-wide/system-calls-or-bust.html#gethostnamewho-am-i
-        sockname: str|bytes = sock.getsockname()
-        # https://beej.us/guide/bgnet/html/split-wide/system-calls-or-bust.html#getpeernamewho-are-you
-        peername: str|bytes = sock.getpeername()
-        match (peername, sockname):
-            case (str(), bytes()):
-                sock_path: Path = Path(peername)
-            case (bytes(), str()):
-                sock_path: Path = Path(sockname)
-        (
-            peer_pid,
-            _,
-            _,
-        ) = get_peer_info(sock)
-
-        filedir, filename = unwrap_sockpath(sock_path)
-        laddr = UDSAddress(
-            filedir=filedir,
-            filename=filename,
-            maybe_pid=os.getpid(),
         )
-        raddr = UDSAddress(
-            filedir=filedir,
-            filename=filename,
-            maybe_pid=peer_pid
-        )
-        return (laddr, raddr)

tractor/msg/types.py

@@ -31,7 +31,6 @@ from typing import (
     Type,
     TypeVar,
     TypeAlias,
-    # TYPE_CHECKING,
     Union,
 )
 
@@ -48,7 +47,7 @@ from tractor.msg import (
     pretty_struct,
 )
 from tractor.log import get_logger
-from tractor._addr import UnwrappedAddress
+from tractor._addr import AddressTypes
 
 
 log = get_logger('tractor.msgspec')
@@ -143,16 +142,9 @@ class Aid(
     '''
     name: str
     uuid: str
-    pid: int|None = None
+    # TODO: use built-in support for UUIDs?
-
+    # -[ ] `uuid.UUID` which has multi-protocol support
-    # TODO? can/should we extend this field set?
-    # -[ ] use built-in support for UUIDs? `uuid.UUID` which has
-    #     multi-protocol support
     #  https://jcristharif.com/msgspec/supported-types.html#uuid
-    #
-    # -[ ] as per the `.ipc._uds` / `._addr` comments, maybe we
-    #     should also include at least `.pid` (equiv to port for tcp)
-    #     and/or host-part always?
 
 
 class SpawnSpec(
@@ -176,8 +168,8 @@ class SpawnSpec(
 
     # TODO: not just sockaddr pairs?
     # -[ ] abstract into a `TransportAddr` type?
-    reg_addrs: list[UnwrappedAddress]
+    reg_addrs: list[AddressTypes]
-    bind_addrs: list[UnwrappedAddress]|None
+    bind_addrs: list[AddressTypes]
 
 
 # TODO: caps based RPC support in the payload?

uv.lock

@@ -11,15 +11,6 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/89/aa/ab0f7891a01eeb2d2e338ae8fecbe57fcebea1a24dbb64d45801bfab481d/attrs-24.3.0-py3-none-any.whl", hash = "sha256:ac96cd038792094f438ad1f6ff80837353805ac950cd2aa0e0625ef19850c308", size = 63397 },
 ]
 
-[[package]]
-name = "bidict"
-version = "0.23.1"
-source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/9a/6e/026678aa5a830e07cd9498a05d3e7e650a4f56a42f267a53d22bcda1bdc9/bidict-0.23.1.tar.gz", hash = "sha256:03069d763bc387bbd20e7d49914e75fc4132a41937fa3405417e1a5a2d006d71", size = 29093 }
-wheels = [
-    { url = "https://files.pythonhosted.org/packages/99/37/e8730c3587a65eb5645d4aba2d27aae48e8003614d6aaf15dda67f702f1f/bidict-0.23.1-py3-none-any.whl", hash = "sha256:5dae8d4d79b552a71cbabc7deb25dfe8ce710b17ff41711e13010ead2abfc3e5", size = 32764 },
-]
-
 [[package]]
 name = "cffi"
 version = "1.17.1"
@@ -257,21 +248,6 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/e4/ea/d836f008d33151c7a1f62caf3d8dd782e4d15f6a43897f64480c2b8de2ad/prompt_toolkit-3.0.50-py3-none-any.whl", hash = "sha256:9b6427eb19e479d98acff65196a307c555eb567989e6d88ebbb1b509d9779198", size = 387816 },
 ]
 
-[[package]]
-name = "psutil"
-version = "7.0.0"
-source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/2a/80/336820c1ad9286a4ded7e845b2eccfcb27851ab8ac6abece774a6ff4d3de/psutil-7.0.0.tar.gz", hash = "sha256:7be9c3eba38beccb6495ea33afd982a44074b78f28c434a1f51cc07fd315c456", size = 497003 }
-wheels = [
-    { url = "https://files.pythonhosted.org/packages/ed/e6/2d26234410f8b8abdbf891c9da62bee396583f713fb9f3325a4760875d22/psutil-7.0.0-cp36-abi3-macosx_10_9_x86_64.whl", hash = "sha256:101d71dc322e3cffd7cea0650b09b3d08b8e7c4109dd6809fe452dfd00e58b25", size = 238051 },
-    { url = "https://files.pythonhosted.org/packages/04/8b/30f930733afe425e3cbfc0e1468a30a18942350c1a8816acfade80c005c4/psutil-7.0.0-cp36-abi3-macosx_11_0_arm64.whl", hash = "sha256:39db632f6bb862eeccf56660871433e111b6ea58f2caea825571951d4b6aa3da", size = 239535 },
-    { url = "https://files.pythonhosted.org/packages/2a/ed/d362e84620dd22876b55389248e522338ed1bf134a5edd3b8231d7207f6d/psutil-7.0.0-cp36-abi3-manylinux_2_12_i686.manylinux2010_i686.manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:1fcee592b4c6f146991ca55919ea3d1f8926497a713ed7faaf8225e174581e91", size = 275004 },
-    { url = "https://files.pythonhosted.org/packages/bf/b9/b0eb3f3cbcb734d930fdf839431606844a825b23eaf9a6ab371edac8162c/psutil-7.0.0-cp36-abi3-manylinux_2_12_x86_64.manylinux2010_x86_64.manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:4b1388a4f6875d7e2aff5c4ca1cc16c545ed41dd8bb596cefea80111db353a34", size = 277986 },
-    { url = "https://files.pythonhosted.org/packages/eb/a2/709e0fe2f093556c17fbafda93ac032257242cabcc7ff3369e2cb76a97aa/psutil-7.0.0-cp36-abi3-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:a5f098451abc2828f7dc6b58d44b532b22f2088f4999a937557b603ce72b1993", size = 279544 },
-    { url = "https://files.pythonhosted.org/packages/50/e6/eecf58810b9d12e6427369784efe814a1eec0f492084ce8eb8f4d89d6d61/psutil-7.0.0-cp37-abi3-win32.whl", hash = "sha256:ba3fcef7523064a6c9da440fc4d6bd07da93ac726b5733c29027d7dc95b39d99", size = 241053 },
-    { url = "https://files.pythonhosted.org/packages/50/1b/6921afe68c74868b4c9fa424dad3be35b095e16687989ebbb50ce4fceb7c/psutil-7.0.0-cp37-abi3-win_amd64.whl", hash = "sha256:4cf3d4eb1aa9b348dec30105c55cd9b7d4629285735a102beb4441e38db90553", size = 244885 },
-]
-
 [[package]]
 name = "ptyprocess"
 version = "0.7.0"
@@ -373,7 +349,6 @@ name = "tractor"
 version = "0.1.0a6.dev0"
 source = { editable = "." }
 dependencies = [
-    { name = "bidict" },
     { name = "cffi" },
     { name = "colorlog" },
     { name = "msgspec" },
@@ -388,7 +363,6 @@ dev = [
     { name = "greenback" },
     { name = "pexpect" },
     { name = "prompt-toolkit" },
-    { name = "psutil" },
     { name = "pyperclip" },
     { name = "pytest" },
     { name = "stackscope" },
@@ -397,7 +371,6 @@ dev = [
 
 [package.metadata]
 requires-dist = [
-    { name = "bidict", specifier = ">=0.23.1" },
     { name = "cffi", specifier = ">=1.17.1" },
     { name = "colorlog", specifier = ">=6.8.2,<7" },
     { name = "msgspec", specifier = ">=0.19.0" },
@@ -412,7 +385,6 @@ dev = [
     { name = "greenback", specifier = ">=1.2.1,<2" },
     { name = "pexpect", specifier = ">=4.9.0,<5" },
     { name = "prompt-toolkit", specifier = ">=3.0.50" },
-    { name = "psutil", specifier = ">=7.0.0" },
     { name = "pyperclip", specifier = ">=1.9.0" },
     { name = "pytest", specifier = ">=8.3.5" },
     { name = "stackscope", specifier = ">=0.2.2,<0.3" },