2005-11-21 12:48:19 +08:00
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/* Compiler options:
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2021-11-11 13:29:41 +08:00
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#progos: linux
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2005-11-21 12:48:19 +08:00
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#cc: additional_flags=-pthread
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#output: abb ok\n
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Testing a pthread corner case. Output will change with glibc
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releases. */
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#include <stddef.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <pthread.h>
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#include <stdlib.h>
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static void *
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process (void *arg)
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{
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int i;
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if (pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, NULL) != 0)
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abort ();
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write (2, "a", 1);
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for (i = 0; i < 10; i++)
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{
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sched_yield ();
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pthread_testcancel ();
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write (2, "b", 1);
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}
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return NULL;
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}
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int
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main (void)
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{
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int retcode;
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pthread_t th_a;
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void *retval;
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retcode = pthread_create (&th_a, NULL, process, NULL);
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sched_yield ();
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sched_yield ();
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sched_yield ();
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sched_yield ();
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retcode = pthread_cancel (th_a);
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retcode = pthread_join (th_a, &retval);
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if (retcode != 0)
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abort ();
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fprintf (stderr, " ok\n");
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return 0;
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}
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