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glibc  2.9
Defines | Functions | Variables
tst-cond10.c File Reference
#include <error.h>
#include <pthread.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include "../test-skeleton.c"

Go to the source code of this file.

Defines

#define N   10
#define ROUNDS   100
#define TEST_FUNCTION   do_test ()

Functions

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

Variables

static pthread_cond_t cond = PTHREAD_COND_INITIALIZER
static pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER
static pthread_barrier_t bN1
static pthread_barrier_t b2

Define Documentation

#define N   10

Definition at line 27 of file tst-cond10.c.

#define ROUNDS   100

Definition at line 28 of file tst-cond10.c.

#define TEST_FUNCTION   do_test ()

Definition at line 172 of file tst-cond10.c.


Function Documentation

static int do_test ( void  ) [static]

Definition at line 76 of file tst-cond10.c.

{
  if (pthread_barrier_init (&bN1, NULL, N + 1) != 0)
    {
      puts ("barrier_init failed");
      exit (1);
    }

  if (pthread_barrier_init (&b2, NULL, 2) != 0)
    {
      puts ("barrier_init failed");
      exit (1);
    }

  pthread_attr_t at;

  if (pthread_attr_init (&at) != 0)
    {
      puts ("attr_init failed");
      return 1;
    }

  if (pthread_attr_setstacksize (&at, 1 * 1024 * 1024) != 0)
    {
      puts ("attr_setstacksize failed");
      return 1;
    }

  int r;
  for (r = 0; r < ROUNDS; ++r)
    {
      printf ("round %d\n", r + 1);

      int i;
      pthread_t th[N];
      for (i = 0; i < N; ++i)
       {
         if (pthread_create (&th[i], &at, tf, NULL) != 0)
           {
             puts ("create failed");
             exit (1);
           }

         int e = pthread_barrier_wait (&b2);
         if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
           {
             puts ("parent: 1st barrier_wait failed");
             exit (1);
           }
       }

      if (pthread_mutex_lock (&mut) != 0)
       {
         puts ("parent: mutex_lock failed");
         exit (1);
       }
      if (pthread_mutex_unlock (&mut) != 0)
       {
         puts ("parent: mutex_unlock failed");
         exit (1);
       }

      /* N single signal calls.  Without locking.  This tests that no
        signal gets lost.  */
      for (i = 0; i < N; ++i)
       if (pthread_cond_signal (&cond) != 0)
         {
           puts ("cond_signal failed");
           exit (1);
         }

      int e = pthread_barrier_wait (&bN1);
      if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
       {
         puts ("parent: 2nd barrier_wait failed");
         exit (1);
       }

      for (i = 0; i < N; ++i)
       if (pthread_join (th[i], NULL) != 0)
         {
           puts ("join failed");
           exit (1);
         }
    }

  if (pthread_attr_destroy (&at) != 0)
    {
      puts ("attr_destroy failed");
      return 1;
    }

  return 0;
}

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static void* tf ( void *  p) [static]

Definition at line 37 of file tst-cond10.c.

{
  if (pthread_mutex_lock (&mut) != 0)
    {
      puts ("child: 1st mutex_lock failed");
      exit (1);
    }

  int e = pthread_barrier_wait (&b2);
  if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
    {
      puts ("child: 1st barrier_wait failed");
      exit (1);
    }

  if (pthread_cond_wait (&cond, &mut) != 0)
    {
      puts ("child: cond_wait failed");
      exit (1);
    }

  if (pthread_mutex_unlock (&mut) != 0)
    {
      puts ("child: mutex_unlock failed");
      exit (1);
    }

  e = pthread_barrier_wait (&bN1);
  if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
    {
      puts ("child: 2nd barrier_wait failed");
      exit (1);
    }

  return NULL;
}

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Variable Documentation

pthread_barrier_t b2 [static]

Definition at line 33 of file tst-cond10.c.

pthread_barrier_t bN1 [static]

Definition at line 32 of file tst-cond10.c.

Definition at line 30 of file tst-cond10.c.

Definition at line 31 of file tst-cond10.c.