tests/conftest.py

@@ -138,19 +138,11 @@ def tpt_protos(request) -> list[str]:
     yield proto_keys
 
 
-@pytest.fixture(
-    scope='session',
-    autouse=True,
-)
+@pytest.fixture(scope='session')
 def tpt_proto(
     tpt_protos: list[str],
 ) -> str:
-    proto_key: str = tpt_protos[0]
-    from tractor import _state
-    if _state._def_tpt_proto != proto_key:
-        _state._def_tpt_proto = proto_key
-    # breakpoint()
-    yield proto_key
+    yield tpt_protos[0]
 
 
 _ci_env: bool = os.environ.get('CI', False)

tractor/_exceptions.py

@@ -948,8 +948,7 @@ class TransportClosed(Exception):
         self._loglevel: str = loglevel
         super().__init__(message)
 
-        self._src_exc = src_exc
-        # set the cause manually if not already set by python
+        self.src_exc = src_exc
         if (
             src_exc is not None
             and
@@ -961,18 +960,9 @@ class TransportClosed(Exception):
         # the exc in its `TransportClosed` handler block.
         self._raise_on_report = raise_on_report
 
-    @property
-    def src_exc(self) -> Exception:
-        return (
-            self.__cause__
-            or
-            self._src_exc
-        )
-
     def report_n_maybe_raise(
         self,
         message: str|None = None,
-        hide_tb: bool = True,
 
     ) -> None:
         '''
@@ -980,10 +970,9 @@ class TransportClosed(Exception):
         for this error.
 
         '''
-        __tracebackhide__: bool = hide_tb
         message: str = message or self.message
         # when a cause is set, slap it onto the log emission.
-        if cause := self.src_exc:
+        if cause := self.__cause__:
             cause_tb_str: str = ''.join(
                 traceback.format_tb(cause.__traceback__)
             )
@@ -1002,76 +991,26 @@ class TransportClosed(Exception):
         if self._raise_on_report:
             raise self from cause
 
-    @classmethod
-    def repr_src_exc(
-        self,
-        src_exc: Exception|None = None,
-    ) -> str:
-
-        if src_exc is None:
-            return '<unknown>'
-
-        src_msg: tuple[str] = src_exc.args
-        src_exc_repr: str = (
-            f'{type(src_exc).__name__}[ {src_msg} ]'
-        )
-        return src_exc_repr
-
     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
 
-    @classmethod
-    def from_src_exc(
-        cls,
-        src_exc: (
-            Exception|
-            trio.ClosedResource|
-            trio.BrokenResourceError
-        ),
-        message: str,
-        body: str = '',
-        **init_kws,
-    ) -> TransportClosed:
-        '''
-        Convenience constructor for creation from an underlying
-        `trio`-sourced async-resource/chan/stream error.
-
-        Embeds the original `src_exc`'s repr within the
-        `Exception.args` via a first-line-in-`.message`-put-in-header
-        pre-processing and allows inserting additional content beyond
-        the main message via a `body: str`.
-
-        '''
-        repr_src_exc: str = cls.repr_src_exc(
-            src_exc,
-        )
-        next_line: str = f'  src_exc: {repr_src_exc}\n'
-        if body:
-            body: str = textwrap.indent(
-                body,
-                prefix=' '*2,
-            )
-
-        return TransportClosed(
-            message=(
-                message
-                +
-                next_line
-                +
-                body
-            ),
-            src_exc=src_exc,
-            **init_kws,
-        )
-
 
 class NoResult(RuntimeError):
     "No final result is expected for this actor"

tractor/_portal.py

@@ -52,8 +52,8 @@ from .msg import (
     Return,
 )
 from ._exceptions import (
+    # unpack_error,
     NoResult,
-    TransportClosed,
 )
 from ._context import (
     Context,
@@ -305,34 +305,14 @@ class Portal:
             return False
 
         except (
-            # XXX, should never really get raised unless we aren't
-            # wrapping them in the below type by mistake?
-            #
-            # Leaving the catch here for now until we're very sure
-            # all the cases (for various tpt protos) have indeed been
-            # re-wrapped ;p
             trio.ClosedResourceError,
             trio.BrokenResourceError,
-
-            TransportClosed,
-        ) as tpt_err:
-            report: str = (
-                f'IPC chan for actor already closed or broken?\n\n'
+        ):
+            log.debug(
+                'IPC chan for actor already closed or broken?\n\n'
                 f'{self.channel.aid}\n'
                 f' |_{self.channel}\n'
             )
-            match tpt_err:
-                case TransportClosed():
-                    log.debug(report)
-                case _:
-                    report += (
-                        f'\n'
-                        f'Unhandled low-level transport-closed/error during\n'
-                        f'Portal.cancel_actor()` request?\n'
-                        f'<{type(tpt_err).__name__}( {tpt_err} )>\n'
-                    )
-                    log.warning(report)
-
             return False
 
     # TODO: do we still need this for low level `Actor`-runtime

tractor/_root.py

@@ -149,10 +149,8 @@ async def open_root_actor(
     arbiter_addr: tuple[UnwrappedAddress]|None = None,
 
     enable_transports: list[
-        # TODO, this should eventually be the pairs as
-        # defined by (codec, proto) as on `MsgTransport.
         _state.TransportProtocolKey,
-    ]|None = None,
+    ] = [_state._def_tpt_proto],
 
     name: str|None = 'root',
 
@@ -215,14 +213,6 @@ async def open_root_actor(
         debug_mode=debug_mode,
         maybe_enable_greenback=maybe_enable_greenback,
     ):
-        if enable_transports is None:
-            enable_transports: list[str] = _state.current_ipc_protos()
-
-            # TODO! support multi-tpts per actor! Bo
-            assert (
-                len(enable_transports) == 1
-            ), 'No multi-tpt support yet!'
-
         _debug.hide_runtime_frames()
         __tracebackhide__: bool = hide_tb
 

tractor/_state.py

@@ -102,7 +102,7 @@ def current_actor(
     return _current_actor
 
 
-def is_root_process() -> bool:
+def is_main_process() -> bool:
     '''
     Bool determining if this actor is running in the top-most process.
 
@@ -111,10 +111,8 @@ def is_root_process() -> bool:
     return mp.current_process().name == 'MainProcess'
 
 
-is_main_process = is_root_process
-
-
-def is_debug_mode() -> bool:
+# TODO, more verby name?
+def debug_mode() -> bool:
     '''
     Bool determining if "debug mode" is on which enables
     remote subactor pdb entry on crashes.
@@ -123,9 +121,6 @@ def is_debug_mode() -> bool:
     return bool(_runtime_vars['_debug_mode'])
 
 
-debug_mode = is_debug_mode
-
-
 def is_root_process() -> bool:
     return _runtime_vars['_is_root']
 
@@ -178,15 +173,3 @@ TransportProtocolKey = Literal[
     'uds',
 ]
 _def_tpt_proto: TransportProtocolKey = 'tcp'
-
-
-def current_ipc_protos() -> list[str]:
-    '''
-    Return the list of IPC transport protocol keys currently
-    in use by this actor.
-
-    The keys are as declared by `MsgTransport` and `Address`
-    concrete-backend sub-types defined throughout `tractor.ipc`.
-
-    '''
-    return [_def_tpt_proto]

tractor/_supervise.py

@@ -316,9 +316,7 @@ class ActorNursery:
         child_count: int = len(children)
         msg: str = f'Cancelling actor nursery with {child_count} children\n'
         with trio.move_on_after(3) as cs:
-            async with trio.open_nursery(
-                strict_exception_groups=False,
-            ) as tn:
+            async with trio.open_nursery() as tn:
 
                 subactor: Actor
                 proc: trio.Process

tractor/ipc/_chan.py

@@ -49,7 +49,6 @@ from tractor.log import get_logger
 from tractor._exceptions import (
     MsgTypeError,
     pack_from_raise,
-    TransportClosed,
 )
 from tractor.msg import (
     Aid,
@@ -257,7 +256,7 @@ class Channel:
         self,
         payload: Any,
 
-        hide_tb: bool = True,
+        hide_tb: bool = False,
 
     ) -> None:
         '''
@@ -275,27 +274,18 @@ class Channel:
                 payload,
                 hide_tb=hide_tb,
             )
-        except (
-            BaseException,
-            MsgTypeError,
-            TransportClosed,
-        )as _err:
+        except BaseException as _err:
             err = _err  # bind for introspection
-            match err:
-                case MsgTypeError():
+            if not isinstance(_err, MsgTypeError):
+                # assert err
+                __tracebackhide__: bool = False
+            else:
                 try:
                     assert err.cid
+
                 except KeyError:
                     raise err
-                case TransportClosed():
-                    log.transport(
-                        f'Transport stream closed due to\n'
-                        f'{err.repr_src_exc()}\n'
-                    )
 
-                case _:
-                    # never suppress non-tpt sources
-                    __tracebackhide__: bool = False
             raise
 
     async def recv(self) -> Any:

tractor/ipc/_transport.py

@@ -367,7 +367,7 @@ class MsgpackTransport(MsgTransport):
         msg: msgtypes.MsgType,
 
         strict_types: bool = True,
-        hide_tb: bool = True,
+        hide_tb: bool = False,
 
     ) -> None:
         '''
@@ -430,9 +430,8 @@ class MsgpackTransport(MsgTransport):
                 return await self.stream.send_all(size + bytes_data)
             except (
                 trio.BrokenResourceError,
-            ) as bre:
-                trans_err = bre
-                tpt_name: str = f'{type(self).__name__!r}'
+            ) as trans_err:
+                loglevel = 'transport'
                 match trans_err:
                     case trio.BrokenResourceError() if (
                         '[Errno 32] Broken pipe' in trans_err.args[0]
@@ -443,22 +442,21 @@ class MsgpackTransport(MsgTransport):
                         #    as it pertains to rando pings from the
                         #    `.discovery` subsys and protos.
                     ):
-                        raise TransportClosed.from_src_exc(
+                        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'
                             ),
-                            body=f'{self}\n',
-                            src_exc=trans_err,
-                            raise_on_report=True,
-                            loglevel='transport',
-                        ) from bre
+                            loglevel=loglevel,
+                        ) from trans_err
 
                     # unless the disconnect condition falls under "a
                     # normal operation breakage" we usualy console warn
                     # about it.
                     case _:
                         log.exception(
-                            '{tpt_name} layer failed pre-send ??\n'
+                            'Transport layer failed for {self.transport!r} ?\n'
                         )
                         raise trans_err
 
@@ -503,11 +501,11 @@ class MsgpackTransport(MsgTransport):
     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'
-            f' |_task: {self._task}\n'
             f')>\n'
         )