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drd: Remove a too strict assert() statement

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git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11937
This commit is contained in:
Bart Van Assche 2011-07-29 06:30:23 +00:00
parent fe979eb8e9
commit 85a61a6c6f
1 changed files with 3 additions and 5 deletions
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8
drd/drd_pthread_intercepts.c
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@ -196,12 +196,10 @@ static void DRD_(sema_down)(DrdSema* sema)
while (sema->counter == 0) {
#if defined(__linux__) && defined(__NR_futex)
if (syscall(__NR_futex, (UWord)&sema->counter,
FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0) == 0) {
FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0) == 0)
res = 0;
} else {
else
res = errno;
assert(res == EWOULDBLOCK || res == ENOSYS);
}
#endif
/*
* Invoke sched_yield() on non-Linux systems, if the futex syscall has
@ -209,7 +207,7 @@ static void DRD_(sema_down)(DrdSema* sema)
* where __NR_futex is defined and is run on a Linux system that does
* not support the futex syscall.
*/
if (res == ENOSYS)
if (res != 0 && res != EWOULDBLOCK)
sched_yield();
}
sema->counter--;