mingw-w64-libraries/winpthreads/tests/pthread_mutex/robust-normal-timedlock.c

/*
   Copyright (c) 2026 mingw-w64 project

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*/

#include "test.h"

/**
 * Test Summary:
 *
 * Main thread M creates robust normal mutex L and locks it.
 *
 * Thread A attempts to lock L with one second timeout; the call to
 * `pthread_mutex_timedlock` must fail with ETIMEDOUT.
 *
 * Thread M unlocks and destroys L.
 */

static void *ThreadA (void *arg)
{
  pthread_mutex_t *mutex = arg;
  struct timespec abstime = {0, 0};

  assert (clock_gettime (CLOCK_REALTIME, &abstime) == 0);
  abstime.tv_sec += 1;
  assert (pthread_mutex_timedlock (mutex, &abstime) == ETIMEDOUT);

  return arg;
}

int main (void)
{
  struct timespec abstime;
  pthread_mutexattr_t mutexAttr;
  pthread_mutex_t mutex;
  pthread_t thread;
  void *result;

  assert (pthread_mutexattr_init (&mutexAttr) == 0);
  assert (pthread_mutexattr_settype (&mutexAttr, PTHREAD_MUTEX_NORMAL) == 0);
  assert (pthread_mutexattr_setrobust (&mutexAttr, PTHREAD_MUTEX_ROBUST) == 0);
  assert (pthread_mutex_init (&mutex, &mutexAttr) == 0);
  assert (clock_gettime (CLOCK_REALTIME, &abstime) == 0);
  abstime.tv_sec += 1;
  assert (pthread_mutex_timedlock (&mutex, &abstime) == 0);
  assert (pthread_create (&thread, NULL, ThreadA, &mutex) == 0);
  assert (pthread_join (thread, &result) == 0);
  assert (result == &mutex);
  assert (pthread_mutex_unlock (&mutex) == 0);
  assert (pthread_mutex_destroy (&mutex) == 0);
  assert (pthread_mutexattr_destroy (&mutexAttr) == 0);

  return 0;
}