mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-07 06:53:33 +00:00
72 lines
1.9 KiB
C
72 lines
1.9 KiB
C
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// Copyright 2024 Justine Alexandra Roberts Tunney
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//
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// Permission to use, copy, modify, and/or distribute this software for
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// any purpose with or without fee is hereby granted, provided that the
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// above copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
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// WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
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// AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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// DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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// PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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// TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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// PERFORMANCE OF THIS SOFTWARE.
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#include <cosmo.h>
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#include <errno.h>
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#include <pthread.h>
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#include <signal.h>
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pthread_mutex_t x;
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pthread_mutex_t y;
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void ignore_signal(int sig) {
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}
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int main(int argc, char *argv[]) {
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#ifdef MODE_DBG
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GetSymbolTable();
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signal(SIGTRAP, ignore_signal);
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kprintf("running %s\n", argv[0]);
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#endif
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pthread_mutexattr_t attr;
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if (pthread_mutexattr_init(&attr))
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return 1;
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if (pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK))
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return 2;
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if (pthread_mutex_init(&x, &attr))
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return 3;
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if (pthread_mutex_init(&y, &attr))
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return 4;
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if (pthread_mutexattr_destroy(&attr))
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return 5;
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if (pthread_mutex_lock(&x))
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return 6;
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if (pthread_mutex_lock(&y))
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return 7;
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if (pthread_mutex_unlock(&y))
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return 8;
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if (pthread_mutex_unlock(&x))
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return 9;
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if (pthread_mutex_lock(&y))
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return 10;
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if (pthread_mutex_lock(&y) != EDEADLK)
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return 11;
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if (pthread_mutex_lock(&x) != EDEADLK)
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return 12;
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if (pthread_mutex_unlock(&x) != EPERM)
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return 13;
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if (pthread_mutex_unlock(&y))
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return 14;
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if (pthread_mutex_destroy(&y))
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return 15;
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if (pthread_mutex_destroy(&x))
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return 16;
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}
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