Nick Mathewson
23f8c9b32f
Add a brief file-level description for everything in src/common
2016-02-27 18:19:57 +01:00
Sebastian Hahn
32220d38c0
Ensure worker threads actually exit when it is time
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This includes a small refactoring to use a new enum (workqueue_reply_t)
for the return values instead of just ints.
2015-08-21 10:36:53 -04:00
Nick Mathewson
f724b2e5aa
Merge remote-tracking branch 'public/bug16741_026'
2015-08-17 14:40:27 -04:00
Nick Mathewson
720a9ccb2f
Check for EINTR correctly on windows
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(even though these are nonblocking calls and EINTR shouldn't be possible).
Also, log what error we're seing if drain_fn fails.
2015-08-07 09:12:33 -04:00
cypherpunks
b3ea3c8e2f
Switch order of unblocking threads and releasing the mutex.
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According to POSIX, the mutex must be locked by the thread calling the signal
functions to ensure predictable scheduling behavior.
Found the issue using Helgrind which gave the warning `dubious: associated lock
is not held by any thread`.
2015-08-04 13:35:02 -04:00
cypherpunks
3b3b447f75
Fix some potential memory leaks in the thread pool code.
2015-07-21 13:57:53 -04:00
Nick Mathewson
a194385d56
Impose an upper limit on threads per threadpool.
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Found by Coverity; Fixes CID 1268069
2015-05-28 12:24:29 -04:00
Nick Mathewson
0b46b08225
Check thread count for negative; realloc->reallocarray
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CID 1268069
2015-02-17 08:46:11 -05:00
Nick Mathewson
5d2a23397a
Fix a few coverity "Use after NULL check" warnings
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Also remove the unit test mocks that allowed get_options() to be
NULL; that's an invariant violation for get_options().
2015-02-16 15:40:15 -05:00
Sebastian Hahn
424edd5710
Don't leak a cond var when starting threads in a pool
2015-02-15 11:21:54 +01:00
Nick Mathewson
38b3f9a619
use the correct free fn. spotted by dgoulet
2015-01-21 14:54:38 -05:00
Nick Mathewson
3c8dabf69a
Fix up some workqueue/threading issues spotted by dgoulet.
2015-01-21 12:26:41 -05:00
Nick Mathewson
a52e549124
Update workqueue implementation to use a single queue for the work
...
Previously I used one queue per worker; now I use one queue for
everyone. The "broadcast" code is gone, replaced with an idempotent
'update' operation.
2015-01-15 11:05:22 -05:00
Nick Mathewson
051ad788e0
Incorporate some comments based on notes from dgoulet
2015-01-14 11:31:14 -05:00
Nick Mathewson
1e896214e7
Refactor cpuworker to use workqueue/threadpool code.
2015-01-14 11:23:34 -05:00
Nick Mathewson
e5f8c772f4
Test and fix workqueue_entry_cancel().
2015-01-14 11:17:46 -05:00
Nick Mathewson
c51f7c23e3
Test a little more of compat_threads.c
2015-01-14 11:05:56 -05:00
Nick Mathewson
b2db3fb462
Documentation for new workqueue and condition and locking stuff
2015-01-14 11:05:54 -05:00
Nick Mathewson
4abbf13f99
Add a way to tell all threads to do something.
2015-01-14 11:01:21 -05:00
Nick Mathewson
51bc0e7f3d
Isolate the "socketpair or a pipe" logic for alerting main thread
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This way we can use the linux eventfd extension where available.
Using EVFILT_USER on the BSDs will be a teeny bit trickier, and will
require libevent hacking.
2015-01-14 11:01:19 -05:00
Nick Mathewson
c7eebe237d
Make pending work cancellable.
2015-01-14 10:56:27 -05:00
Nick Mathewson
a82604b526
Initial workqueue implemention, with a simple test.
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It seems to be working, but more tuning is needed.
2015-01-14 10:56:24 -05:00
