Be more pedantic with error handling

bistream_backup
Tyler Goodlet 2021-05-10 07:23:39 -04:00
parent 15b63b7190
commit 1192541623
2 changed files with 27 additions and 21 deletions

View File

@ -358,33 +358,39 @@ class Portal:
fn_mod_path, fn_name = func_deats(func)
cid, recv_chan, functype, first_msg = await self._submit(
fn_mod_path, fn_name, kwargs)
assert functype == 'context'
msg = await recv_chan.receive()
try:
# the "first" value here is delivered by the callee's
# ``Context.started()`` call.
first = msg['started']
cid, recv_chan, functype, first_msg = await self._submit(
fn_mod_path, fn_name, kwargs)
except KeyError:
assert msg.get('cid'), ("Received internal error at context?")
assert functype == 'context'
msg = await recv_chan.receive()
if msg.get('error'):
# raise the error message
raise unpack_error(msg, self.channel)
else:
raise
try:
try:
# the "first" value here is delivered by the callee's
# ``Context.started()`` call.
first = msg['started']
except KeyError:
assert msg.get('cid'), ("Received internal error at context?")
if msg.get('error'):
# raise the error message
raise unpack_error(msg, self.channel)
else:
raise
# deliver context instance and .started() msg value in open
# tuple.
ctx = Context(self.channel, cid, _portal=self)
yield ctx, first
try:
yield ctx, first
finally:
await ctx.cancel()
finally:
await recv_chan.aclose()
await ctx.cancel()
@dataclass
class LocalPortal:

View File

@ -357,7 +357,8 @@ async def open_nursery(
try:
if actor is None and is_main_process():
# if we are the parent process start the actor runtime implicitly
# if we are the parent process start the
# actor runtime implicitly
log.info("Starting actor runtime!")
# mark us for teardown on exit
@ -376,7 +377,6 @@ async def open_nursery(
async with _open_and_supervise_one_cancels_all_nursery(
actor
) as anursery:
yield anursery
finally: