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| author | Rich Felker <dalias@aerifal.cx> | 2011-09-22 21:08:55 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2011-09-22 21:08:55 -0400 |
| commit | 4b153ac42428447a148e6da543ebe6df017078db (patch) | |
| tree | d9a5b8035f98b8cec47fc6044e38305ea5cdb91a /src/thread/pthread_cond_broadcast.c | |
| parent | 2eff02e4a032323a45541c79967638d8c77d79e4 (diff) | |
| download | musl-4b153ac42428447a148e6da543ebe6df017078db.tar.gz | |
fix deadlock in condition wait whenever there are multiple waiters
it's amazing none of the conformance tests i've run even bothered to
check whether something so basic works...
Diffstat (limited to 'src/thread/pthread_cond_broadcast.c')
| -rw-r--r-- | src/thread/pthread_cond_broadcast.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/thread/pthread_cond_broadcast.c b/src/thread/pthread_cond_broadcast.c index 30f7f6df..6002c535 100644 --- a/src/thread/pthread_cond_broadcast.c +++ b/src/thread/pthread_cond_broadcast.c @@ -2,7 +2,8 @@ int pthread_cond_broadcast(pthread_cond_t *c) { - if (a_swap(&c->_c_block, 0)) + int w = c->_c_waiters; + if (a_swap(&c->_c_block, 0) || w) __wake(&c->_c_block, -1, 0); return 0; } |