I've got an issue when stop evconnlistener not in the event_base_loop()
thread. evconnlistener_disable() acquired lev->lock, if the same time,
user callbacks is runing, the event thread released lock, after callback
finished, it try to aquire the lock again, I think this makes conflict:
Here is backtraces:
thread 1:
0 __lll_lock_wait (futex=futex@entry=0x555555559a60, private=0) at lowlevellock.c:52
1 0x00007ffff7f2a131 in __GI___pthread_mutex_lock (mutex=0x555555559a60) at ../nptl/pthread_mutex_lock.c:115
2 0x00007ffff7f424c9 in evthread_posix_lock (mode=0, lock_=0x555555559a60) at evthread_pthread.c:79
3 0x00007ffff7f7dc12 in listener_read_cb (fd=7, what=2, p=0x5555555599a0) at listener.c:439
4 0x00007ffff7f6d758 in event_persist_closure (base=0x555555559370, ev=0x5555555599d8) at event.c:1645
5 0x00007ffff7f6da60 in event_process_active_single_queue (base=0x555555559370, activeq=0x5555555597e0,
max_to_process=2147483647, endtime=0x0) at event.c:1704
6 0x00007ffff7f6e018 in event_process_active (base=0x555555559370) at event.c:1805
7 0x00007ffff7f6e92a in event_base_loop (base=0x555555559370, flags=0) at event.c:2047
8 0x0000555555555449 in main () at test_listen.c:67
thread 2:
0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x555555559858) at ../sysdeps/nptl/futex-internal.h:183
1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555555559800, cond=0x555555559830) at pthread_cond_wait.c:508
2 __pthread_cond_wait (cond=0x555555559830, mutex=0x555555559800) at pthread_cond_wait.c:638
3 0x00007ffff7f426f3 in evthread_posix_cond_wait (cond_=0x555555559830, lock_=0x555555559800, tv=0x0) at evthread_pthread.c:162
4 0x00007ffff7f70bc5 in event_del_nolock_ (ev=0x5555555599d8, blocking=2) at event.c:2934
5 0x00007ffff7f70748 in event_del_ (ev=0x5555555599d8, blocking=2) at event.c:2821
6 0x00007ffff7f707a1 in event_del (ev=0x5555555599d8) at event.c:2830
7 0x00007ffff7f7d76e in event_listener_disable (lev=0x5555555599a0) at listener.c:343
8 0x00007ffff7f7d6e5 in evconnlistener_disable (lev=0x5555555599a0) at listener.c:325
9 0x00005555555552c3 in disable_thread (arg=0x5555555599a0) at test_listen.c:27
10 0x00007ffff7f27609 in start_thread (arg=<optimized out>) at pthread_create.c:477
11 0x00007ffff7e4e293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
During testing on win32, util/getaddrinfo failed with NULL hint info
r = evutil_getaddrinfo("www.google.com", NULL, NULL, &ai);
throwing a critical heap exception when evutil_freeaddrinfo is called.
This is because of improper use of freeaddrinfo when nodes within the
ai structure are allocated using mm_malloc or mm_calloc
(EVUTIL_AI_LIBEVENT_ALLOCATED)
This adds the flag in apply_socktype_protocol_hack and walks the linked
list in evutil_freeaddrinfo removing linked list nodes that are custom
allocated before calling freeaddrinfo.
* skip-tests:
test: add --retries-delay (and set to 1 second by default)
test: add --retries argument
Add -Wno-void-pointer-to-enum-cast (we use this hack in tests)
test/regress_http: mark data_length_constraints as retriable
github/workflows/mingw: use ctest --output-on-failure
test/dns: mark TCP tests as retriable
test/regress: retry some signal rlated tests in darwin
test/regress_util: mark monotonic_prc as retriable
test/regress_http: fix unix_socket test
test/regress_http: disable max_connections/data_length_constraints under windows
Add EV_WINDOWS macro
Otherwise it breaks upload-artifacts:
Run actions/upload-artifact@v1
Uploading artifact 'ubuntu-18.04-cmake-NONE-build' from '/home/runner/work/libevent/libevent/build' for run #346
Uploading 1095 files
File error 'No such device or address' when uploading file '/home/runner/work/libevent/libevent/build/foo'.
...
Error: No such device or address
Error: Exit code 1 returned from process: file name '/home/runner/runners/2.282.1/bin/Runner.PluginHost', arguments 'action "GitHub.Runner.Plugins.Artifact.PublishArtifact, Runner.Plugins"'.
This will also suppress:
../test/regress_bufferevent.c: In function ‘test_bufferevent_read_failed’: 1102
../test/regress_bufferevent.c:1395:2: warning: ignoring return value of ‘write’, declared with attribute warn_unused_result [-Wunused-result] 1103
write(data->pair[0], buf, strlen(buf));
@ploxiln:
"It seems like a bit of refactoring might be able to clean this code
up a bit, but it's a bit tricky because of the varied tricky usage of
chain structs, so this initial version has minimal changes ... "
* upstream/pr/1203:
buffer: do not round up allocation for reference-type chain objects
mbedtls just updated to version 3.0, install mbedtls@2 variant,
which needs more help being located since it's no longer the
default and no longer linked into the typical /usr/local dirs
also gitignore mbedtls sample program binaries
Skip rounding up memory allocations for:
* evbuffer_add_reference()
* evbuffer_add_buffer_reference()
* evbuffer_add_file_segment()
These chain objects only store small structs with references to
other things, and these small structs do not themselves grow, so
bumping up the allocation to MIN_BUFFER_SIZE (512 bytes) is wasteful.
There are no standard for encoding a unix socket in an url. nginx uses:
http://unix:/path/to/unix/socket:/httppath
The second colon is needed to delimit where the unix path ends and where
the rest of the url continues.
Signed-off-by: Sean Young <sean@mess.org>
