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Call sem_unlink on semaphores before attempting to create them

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Due to the lack of uniqueness in the semaphore name, and the fact that the
tests don't have cleanup routines, an interrupted test can leave a semaphore
"laying around", causing all subsequent attempts to run the test to fail

I will file a NetBSD PR for this issue soon
This commit is contained in:
Enji Cooper 2014-11-16 06:59:58 +00:00
parent 3eee258dfb
commit e2b4fa14f9
1 changed files with 6 additions and 0 deletions
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6
contrib/netbsd-tests/lib/librt/t_sem.c
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@ -86,6 +86,9 @@ ATF_TC_BODY(basic, tc)
if (sysconf(_SC_SEMAPHORES) == -1)
atf_tc_skip("POSIX semaphores not supported");
#ifdef __FreeBSD__
sem_unlink("/sem_b");
#endif
sem_b = sem_open("/sem_b", O_CREAT | O_EXCL, 0644, 0);
ATF_REQUIRE(sem_b != SEM_FAILED);
@ -127,6 +130,9 @@ ATF_TC_BODY(child, tc)
if (sysconf(_SC_SEMAPHORES) == -1)
atf_tc_skip("POSIX semaphores not supported");
#ifdef __FreeBSD__
sem_unlink("/sem_a");
#endif
sem_a = sem_open("/sem_a", O_CREAT | O_EXCL, 0644, 0);
ATF_REQUIRE(sem_a != SEM_FAILED);