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| author | Rich Felker <dalias@aerifal.cx> | 2011-04-06 12:24:34 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2011-04-06 12:24:34 -0400 |
| commit | a113434cd68ce30642c4995b1caadcd084be6f09 (patch) | |
| tree | b26daaeda2c9e2caf1605615c497a4a84191e01d /src/thread/__timedwait.c | |
| parent | cd3bb38412cfcc3bc47985ba25287e0af463609a (diff) | |
| download | musl-a113434cd68ce30642c4995b1caadcd084be6f09.tar.gz musl-a113434cd68ce30642c4995b1caadcd084be6f09.tar.bz2 musl-a113434cd68ce30642c4995b1caadcd084be6f09.tar.xz musl-a113434cd68ce30642c4995b1caadcd084be6f09.zip | |
major semaphore improvements (performance and correctness)
1. make sem_[timed]wait interruptible by signals, per POSIX
2. keep a waiter count in order to avoid unnecessary futex wake syscalls
Diffstat (limited to 'src/thread/__timedwait.c')
| -rw-r--r-- | src/thread/__timedwait.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/thread/__timedwait.c b/src/thread/__timedwait.c index 28b777bc..a673099b 100644 --- a/src/thread/__timedwait.c +++ b/src/thread/__timedwait.c @@ -18,6 +18,6 @@ int __timedwait(volatile int *addr, int val, clockid_t clk, const struct timespe } if (priv) priv = 128; priv=0; r = -__syscall(__NR_futex, (long)addr, FUTEX_WAIT | priv, val, at ? (long)&to : 0); - if (r == ETIMEDOUT) return r; + if (r == ETIMEDOUT || r == EINTR) return r; return 0; } |