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glibc  2.9
Defines | Functions | Variables
tst-robust7.c File Reference
#include <errno.h>
#include <pthread.h>
#include <stdbool.h>
#include <stdio.h>
#include "../test-skeleton.c"
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Defines

#define N   5
#define TEST_FUNCTION   do_test ()

Functions

static void * tf (void *arg)
static int do_test (void)

Variables

static pthread_barrier_t b
static pthread_cond_t c = PTHREAD_COND_INITIALIZER
static pthread_mutex_t m
static bool first = true

Define Documentation

#define N   5
#define TEST_FUNCTION   do_test ()

Definition at line 211 of file tst-robust7.c.


Function Documentation

static int do_test ( void  ) [static]

Definition at line 83 of file tst-robust7.c.

{
  pthread_mutexattr_t a;
  if (pthread_mutexattr_init (&a) != 0)
    {
      puts ("mutexattr_init failed");
      return 1;
    }

  if (pthread_mutexattr_setrobust_np (&a, PTHREAD_MUTEX_ROBUST_NP) != 0)
    {
      puts ("mutexattr_setrobust failed");
      return 1;
    }

#ifdef ENABLE_PI
  if (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_INHERIT) != 0)
    {
      puts ("pthread_mutexattr_setprotocol failed");
      return 1;
    }
#endif

  int e;
  e = pthread_mutex_init (&m, &a);
  if (e != 0)
    {
#ifdef ENABLE_PI
      if (e == ENOTSUP)
       {
         puts ("PI robust mutexes not supported");
         return 0;
       }
#endif
      puts ("mutex_init failed");
      return 1;
    }

  if (pthread_mutexattr_destroy (&a) != 0)
    {
      puts ("mutexattr_destroy failed");
      return 1;
    }

  if (pthread_barrier_init (&b, NULL, 2) != 0)
    {
      puts ("barrier_init failed");
      return 1;
    }

#define N 5
  pthread_t th[N];
  for (long int n = 0; n < N; ++n)
    {
      if (pthread_create (&th[n], NULL, tf, (void *) n) != 0)
       {
         printf ("pthread_create loop %ld failed\n", n + 1);
         return 1;
       }

      e = pthread_barrier_wait (&b);
      if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
       {
         printf ("parent: barrier_wait failed in round %ld\n", n + 1);
         return 1;
       }
    }

  if (pthread_mutex_lock (&m) != 0)
    {
      puts ("parent: mutex_lock failed");
      return 1;
    }

  if (pthread_mutex_unlock (&m) != 0)
    {
      puts ("parent: mutex_unlock failed");
      return 1;
    }

  if (pthread_cond_broadcast (&c) != 0)
    {
      puts ("cond_broadcast failed");
      return 1;
    }

  for (int n = 0; n < N; ++n)
    {
      void *res;
      if (pthread_join (th[n], &res) != 0)
       {
         printf ("join round %d failed\n", n + 1);
         return 1;
       }
      if (res != PTHREAD_CANCELED)
       {
         printf ("thread %d not canceled\n", n + 1);
         return 1;
       }
    }

  e = pthread_mutex_lock (&m);
  if (e == 0)
    {
      puts ("parent: 2nd mutex_lock succeeded");
      return 1;
    }
  if (e != EOWNERDEAD)
    {
      puts ("parent: mutex_lock did not return EOWNERDEAD");
      return 1;
    }

  if (pthread_mutex_unlock (&m) != 0)
    {
      puts ("parent: 2nd mutex_unlock failed");
      return 1;
    }

  if (pthread_mutex_destroy (&m) != 0)
    {
      puts ("mutex_destroy failed");
      return 1;
    }

  return 0;
}

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static void* tf ( void *  arg) [static]

Definition at line 33 of file tst-robust7.c.

{
  long int n = (long int) arg;

  if (pthread_mutex_lock (&m) != 0)
    {
      printf ("thread %ld: mutex_lock failed\n", n + 1);
      exit (1);
    }

  int e = pthread_barrier_wait (&b);
  if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
    {
      printf ("thread %ld: barrier_wait failed\n", n + 1);
      exit (1);
    }

  e = pthread_cond_wait (&c, &m);
  if (first)
    {
      if (e != 0)
       {
         printf ("thread %ld: cond_wait failed\n", n + 1);
         exit (1);
       }
      first = false;
    }
  else
    {
      if (e != EOWNERDEAD)
       {
         printf ("thread %ld: cond_wait did not return EOWNERDEAD\n", n + 1);
         exit (1);
       }
    }

  if (pthread_cancel (pthread_self ()) != 0)
    {
      printf ("thread %ld: cancel failed\n", n + 1);
      exit (1);
    }

  pthread_testcancel ();

  printf ("thread %ld: testcancel returned\n", n + 1);
  exit (1);
}

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Variable Documentation

pthread_barrier_t b [static]

Definition at line 26 of file tst-robust7.c.

Definition at line 27 of file tst-robust7.c.

bool first = true [static]

Definition at line 29 of file tst-robust7.c.

pthread_mutex_t m [static]

Definition at line 28 of file tst-robust7.c.