tb_bool_t tb_semaphore_post(tb_semaphore_ref_t semaphore, tb_size_t post)
{
// check
tb_semaphore_impl_t* impl = (tb_semaphore_impl_t*)semaphore;
tb_assert_and_check_return_val(semaphore && impl->semaphore && impl->semaphore != INVALID_HANDLE_VALUE && post, tb_false);
// += post
tb_atomic_fetch_and_add(&impl->value, post);
// post
LONG prev = 0;
if (!ReleaseSemaphore(impl->semaphore, (LONG)post, &prev) && prev >= 0)
{
// restore
tb_atomic_fetch_and_sub(&impl->value, (tb_long_t)post);
return tb_false;
}
// check
tb_assert_and_check_return_val(prev + post <= TB_SEMAPHORE_VALUE_MAXN, tb_false);
// save value
tb_atomic_set(&impl->value, prev + post);
// ok
return tb_true;
}
tb_bool_t tb_semaphore_post(tb_semaphore_ref_t self, tb_size_t post)
{
// check
tb_atomic_t* semaphore = (tb_atomic_t*)self;
tb_assert_and_check_return_val(semaphore && post, tb_false);
// post it
tb_long_t value = tb_atomic_fetch_and_add(semaphore, post);
// ok
return value >= 0? tb_true : tb_false;
}
