mirror of git://gcc.gnu.org/git/gcc.git
51 lines
964 B
C
51 lines
964 B
C
/* Trivial test of barrier. */
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#include <omp.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include <assert.h>
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#include "libgomp_g.h"
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struct timeval stamps[3][3];
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static void function(void *dummy)
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{
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int iam = omp_get_thread_num ();
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gettimeofday (&stamps[iam][0], NULL);
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if (iam == 0)
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usleep (10);
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GOMP_barrier ();
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if (iam == 0)
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{
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gettimeofday (&stamps[0][1], NULL);
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usleep (10);
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}
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GOMP_barrier ();
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gettimeofday (&stamps[iam][2], NULL);
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}
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int main()
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{
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omp_set_dynamic (0);
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GOMP_parallel_start (function, NULL, 3);
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function (NULL);
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GOMP_parallel_end ();
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assert (!timercmp (&stamps[0][0], &stamps[0][1], >));
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assert (!timercmp (&stamps[1][0], &stamps[0][1], >));
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assert (!timercmp (&stamps[2][0], &stamps[0][1], >));
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assert (!timercmp (&stamps[0][1], &stamps[0][2], >));
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assert (!timercmp (&stamps[0][1], &stamps[1][2], >));
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assert (!timercmp (&stamps[0][1], &stamps[2][2], >));
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return 0;
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}
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