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Fixed semaphore wait when getting interrupted by signal handler.

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bkaradzic
2013-09-01 14:01:19 -07:00
parent 82c4ec7dd8
commit 9ba23e6e42
1 changed files with 15 additions and 3 deletions
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18
include/bx/sem.h
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@@ -133,15 +133,20 @@ namespace bx
~Semaphore()
{
sem_destroy(&m_handle);
int32_t result = sem_destroy(&m_handle);
BX_CHECK(0 == result, "sem_destroy failed. errno %d", errno);
BX_UNUSED(result);
}
void post(uint32_t _count = 1)
{
int32_t result;
for (uint32_t ii = 0; ii < _count; ++ii)
{
sem_post(&m_handle);
result = sem_post(&m_handle);
BX_CHECK(0 == result, "sem_post failed. errno %d", errno);
}
BX_UNUSED(result);
}
bool wait(int32_t _msecs = -1)
@@ -152,7 +157,14 @@ namespace bx
# else
if (0 > _msecs)
{
return 0 == sem_wait(&m_handle);
int32_t result;
do
{
result = sem_wait(&m_handle);
} // keep waiting when interrupted by a signal handler...
while (-1 == result && EINTR == errno);
BX_CHECK(0 == result, "sem_wait failed. errno %d", errno);
return 0 == result;
}
timespec ts;