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553 Commits (14d60147fabbd3646abea6a8b088ba261f7eeea7)

Author SHA1 Message Date
Tyler Goodlet f1b242f913 Block SIGINT handling while in the debugger 
This seems to prevent a certain class of bugs to do with the root actor
cancelling local tasks and getting into deadlock while children are
trying to acquire the tty lock. I'm not sure it's the best idea yet
since you're pretty much guaranteed to get "stuck" if a child activates
the debugger after the root has been cancelled (at least "stuck" in
terms of SIGINT being ignored). That kinda race condition seems to still
exist somehow: a child can "beat" the root to activating the tty lock
and the parent is stuck waiting on the child to terminate via its
nursery.
 2020-09-28 08:54:21 -04:00
goodboy ce5c52905d
Merge pull request #154 from goodboy/matrix 
Add matrix room link
 2020-09-24 13:05:35 -04:00
Tyler Goodlet 76e1c83161 Add matrix room link 2020-09-24 11:12:45 -04:00
Tyler Goodlet 9e1d9a8ce1 Add an internal context stack 
This aids with tearing down resources **after** the crash handling and
debugger have completed. Leaving this internal for now but should
eventually get a public convenience function like
`tractor.context_stack()`.
 2020-09-24 10:12:33 -04:00
Tyler Goodlet 09daba4c9c Explicitly handle `debug_mode` flag correctly 2020-09-24 10:12:33 -04:00
Tyler Goodlet 8b6e9f5530 Port to new debug api, set `_is_root` state flag on startup 2020-09-24 10:12:33 -04:00
Tyler Goodlet 150179bfe4 Support entering post mortem on crashes in root actor 2020-09-24 10:12:33 -04:00
Tyler Goodlet 291ecec070 Maybe not sticky by default 2020-09-24 10:12:33 -04:00
Tyler Goodlet bd157e05ef Port to service nursery 2020-09-24 10:12:33 -04:00
Tyler Goodlet fd5fb9241a Sparsen some lines 2020-09-24 10:12:33 -04:00
Tyler Goodlet ebb21b9ba3 Support re-entrant breakpoints 
Keep an actor local (bool) flag which determines if there is already
a running debugger instance for the current process. If another task
tries to enter in this case, simply ignore it since allowing entry may
result in a deadlock where the new task will be sync waiting on the
parent stdio lock (a case that will never arrive due to the current
debugger's active use of it).

In the future we may want to allow FIFO queueing of local tasks where
instead of ignoring re-entrant breakpoints we allow tasks to async wait
for debugger release, though not sure the implications of that since
you'd likely want to support switching the debugger to the new task and
that could cause deadlocks where tasks are inter-dependent. It may be
more sane to just error on multiple breakpoint requests within an actor.
 2020-09-24 10:12:33 -04:00
Tyler Goodlet f9ef3fc5de Cleanups and more comments 2020-09-24 10:12:33 -04:00
Tyler Goodlet 68773d51fd Always expose the debug module 2020-09-24 10:12:33 -04:00
Tyler Goodlet abaa2f5da0 Drop uneeded `parent_chan_cs()` cancel call 2020-09-24 10:12:33 -04:00
Tyler Goodlet efd7095cf8 Add pdbpp as dep 2020-09-24 10:12:32 -04:00
Tyler Goodlet f7cd2be039 Play with re-entrant trace 2020-09-24 10:12:10 -04:00
Tyler Goodlet 8eb9a742dd Add multi-process debugging support using `pdbpp` 
This is the first step in addressing #113 and the initial support
of #130. Basically this allows (sub)processes to engage the `pdbpp`
debug machinery which read/writes the root actor's tty but only in
a FIFO semaphored way such that no two processes are using it
simultaneously. That means you can have multiple actors enter a trace or
crash and run the debugger in a sensible way without clobbering each
other's access to stdio. It required adding some "tear down hooks" to
a custom `pdbpp.Pdb` type such that we release a child's lock on the
parent on debugger exit (in this case when either of the "continue" or
"quit" commands are issued to the debugger console).

There's some code left commented in anticipation of full support for
issue #130 where we're need to actually capture and feed stdin to the
target (remote) actor which won't necessarily being running on the same
host.
 2020-09-24 10:12:10 -04:00
Tyler Goodlet e7ee0fec34 Pass a copy of the expected exposed modules 2020-09-24 10:12:10 -04:00
Tyler Goodlet 1d1c881fd7 WIP debugging test script 2020-09-24 10:12:10 -04:00
Tyler Goodlet b06d4b023e Add support for "debug mode" 
When enabled a crashed actor will connect to the parent with `pdb`
in post mortem mode.
 2020-09-24 10:12:10 -04:00
Tyler Goodlet b11e91375c Initial attempt at multi-actor debugging 
Allow entering and attaching to a `pdb` instance in a child process.
The current hackery is to have the child make an rpc to the parent and
ask it to hijack stdin, once complete the child enters a `pdb` blocking
method. The parent then relays all stdin input to the child thus
controlling the "remote" debugger.

A few things were added to accomplish this:
- tracking the mapping of subactors to their parent nurseries
- in the root actor, cancelling all nurseries under the root `trio` task
  on cancellation (i.e. `Actor.cancel()`)
- pass a "runtime vars" map down the actor tree for propagating global state
 2020-09-24 10:12:10 -04:00
Tyler Goodlet 8c97f7bbb3 Create runtime variables 2020-09-24 10:12:10 -04:00
goodboy 196cf14211
Merge pull request #152 from guilledk/gh_actions 
Add Github Actions CI support
 2020-09-03 12:22:27 -04:00
Guillermo Rodriguez 5e3ce765dd
Drop mac support, will continue the experiment on another branch 2020-09-03 10:41:09 -03:00
Guillermo Rodriguez ad68ff665f
Missing a platform.system() check 2020-09-03 09:57:04 -03:00
Guillermo Rodriguez c993e36e95
Simplified CI detection 2020-09-03 09:44:24 -03:00
Guillermo Rodriguez 03e5852acf
Added some missing CI integration pieces 2020-09-02 13:19:42 -03:00
Guillermo Rodriguez 4d7a16b304
Lower timeout and added spawn_backend to name of jobs 2020-09-02 11:31:10 -03:00
Guillermo Rodriguez 406ded7311
Experimental mac testing 2020-09-02 11:18:12 -03:00
Guillermo Rodriguez 3595317b00
Removed --disable-vnet parameter to pytest that was left after experimenting with this file in the multihost testing branch 2020-09-02 11:16:05 -03:00
Guillermo Rodriguez 865e932107
Initial commit 2020-09-02 11:12:08 -03:00
goodboy 1cbc098721
Merge pull request #150 from guilledk/typelog_sphinx_theme 
Install docs requirements in travis tests
 2020-08-31 11:39:40 -04:00
Guillermo Rodriguez f05db6841d
Install docs requirements in travis tests! 2020-08-31 12:33:25 -03:00
goodboy 440dae4859
Merge pull request #137 from guilledk/typelog_sphinx_theme 
Changed docs theme to typelog
 2020-08-31 11:22:19 -04:00
Guillermo Rodriguez a6f7b0df7c
Small grammar fix 2020-08-31 12:17:59 -03:00
Guillermo Rodriguez 1bee78837b
Added logo, fixed github links and grammar issues 2020-08-31 11:49:14 -03:00
Guillermo Rodriguez 13de7991d9
Add link to trio process spawning docs 2020-08-31 10:08:32 -03:00
Guillermo Rodriguez 3536e73df7
Changed docs theme to typelog, also removed all mentions to trio-run-in-process. 2020-08-31 10:08:04 -03:00
goodboy 4da16325f3
Merge pull request #144 from goodboy/dereg_on_channel_aclose 
Fix for dereg failure on manual stream close leading to an internal nursery composition rework.
 2020-08-13 13:56:47 -04:00
Tyler Goodlet 451170bb63 Pass explicit kwargs to new discovery test funcs 2020-08-13 13:26:08 -04:00
Tyler Goodlet ec5d443ee5 Always log actor errors 2020-08-13 11:55:22 -04:00
Tyler Goodlet 863a4b7933 Update copyright date 2020-08-13 11:55:03 -04:00
Tyler Goodlet 0c8dcd0ec5 Use allocated arbiter port in local reg test 2020-08-13 11:54:37 -04:00
Tyler Goodlet 1ae0efb033 Make rpc_module_paths a list 2020-08-13 11:53:45 -04:00
Tyler Goodlet 8a995beb6a Docs fixes 2020-08-08 22:29:57 -04:00
Tyler Goodlet 292513b353 Module define default accept addr 2020-08-08 20:58:04 -04:00
Tyler Goodlet b3eba00c3a Appease the great mypy 2020-08-08 20:57:43 -04:00
Tyler Goodlet 42be410076 Handle mp accept_addr 2020-08-08 20:27:43 -04:00
Tyler Goodlet acd5b80f4c Add close channel test with remote arbiter 2020-08-08 15:17:04 -04:00
Tyler Goodlet c821690834 Actor cancellation is now more latent; loosen timeing 2020-08-08 15:16:10 -04:00