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glibc/nptl/tst-sem13.c
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#include <errno.h> | |
#include <semaphore.h> | |
#include <stdio.h> | |
#include <unistd.h> | |
#include <pthread.h> | |
#include <internaltypes.h> | |
static int | |
do_test (void) | |
{ | |
union | |
{ | |
sem_t s; | |
struct new_sem ns; | |
} u; | |
if (sem_init (&u.s, 0, 0) != 0) | |
{ | |
puts ("sem_init failed"); | |
return 1; | |
} | |
struct timespec ts = { 0, 1000000001 }; /* Invalid. */ | |
errno = 0; | |
if (sem_timedwait (&u.s, &ts) >= 0) | |
{ | |
puts ("sem_timedwait did not fail"); | |
return 1; | |
} | |
if (errno != EINVAL) | |
{ | |
perror ("sem_timedwait did not fail with EINVAL"); | |
return 1; | |
} | |
#if __HAVE_64B_ATOMICS | |
unsigned int nwaiters = (u.ns.data >> SEM_NWAITERS_SHIFT); | |
#else | |
unsigned int nwaiters = u.ns.nwaiters; | |
#endif | |
if (nwaiters != 0) | |
{ | |
printf ("sem_timedwait modified nwaiters: %d\n", nwaiters); | |
return 1; | |
} | |
ts.tv_sec = /* Invalid. */ -2; | |
ts.tv_nsec = 0; | |
errno = 0; | |
if (sem_timedwait (&u.s, &ts) >= 0) | |
{ | |
puts ("2nd sem_timedwait did not fail"); | |
return 1; | |
} | |
if (errno != ETIMEDOUT) | |
{ | |
perror ("2nd sem_timedwait did not fail with ETIMEDOUT"); | |
return 1; | |
} | |
#if __HAVE_64B_ATOMICS | |
nwaiters = (u.ns.data >> SEM_NWAITERS_SHIFT); | |
#else | |
nwaiters = u.ns.nwaiters; | |
#endif | |
if (nwaiters != 0) | |
{ | |
printf ("2nd sem_timedwait modified nwaiters: %d\n", nwaiters); | |
return 1; | |
} | |
return 0; | |
} | |
#define TEST_FUNCTION do_test () | |
#include "../test-skeleton.c" |