POSIX said: (Sure it is unclear)
The pthread_mutex_lock() function shall fail if:
[EDEADLK]
The mutex type is PTHREAD_MUTEX_ERRORCHECK and the current thread already
owns the mutex.
The pthread_mutex_trylock() function shall fail if:
[EBUSY]
The mutex could not be acquired because it was already locked.
So we should allow pthread_mutex_trylock return EDEADLK or EBUSY
when the mutex is already owned.
Signed-off-by: Wanlong Gao <[email protected]>
---
.../conformance/interfaces/pthread_mutex_trylock/4-3.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git
a/testcases/open_posix_testsuite/conformance/interfaces/pthread_mutex_trylock/4-3.c
b/testcases/open_posix_testsuite/conformance/interfaces/pthread_mutex_trylock/4-3.c
index 64c549d..8e75239 100644
---
a/testcases/open_posix_testsuite/conformance/interfaces/pthread_mutex_trylock/4-3.c
+++
b/testcases/open_posix_testsuite/conformance/interfaces/pthread_mutex_trylock/4-3.c
@@ -274,7 +274,8 @@ void *test(void *arg)
}
ret = EBUSY;
}
- if (ret != EBUSY) {
+
+ if (ret != EBUSY && ret != EDEADLK) {
UNRESOLVED(ret, "Unexpected error was returned.");
}
--
1.8.3.2.634.g7a3187e
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