Back to index

glibc  2.9
Defines | Functions | Variables
tst-cancel8.c File Reference
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "../test-skeleton.c"
This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Defines

#define TEST_FUNCTION   do_test ()

Functions

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

Variables

static pthread_barrier_t bar
static int global

Define Documentation

#define TEST_FUNCTION   do_test ()

Definition at line 142 of file tst-cancel8.c.


Function Documentation

static void cleanup ( void *  arg) [static]

Definition at line 32 of file tst-cancel8.c.

{
  global = 1;
}
static int do_test ( void  ) [static]

Definition at line 85 of file tst-cancel8.c.

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

  pthread_t th;
  if (pthread_create (&th, NULL, tf, NULL) != 0)
    {
      puts ("pthread_create failed");
      return 1;
    }

  int r = pthread_barrier_wait (&bar);
  if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD)
    {
      puts ("first barrier_wait failed");
      exit (1);
    }

  if (pthread_cancel (th) != 0)
    {
      puts ("pthread_cancel failed");
      return 1;
    }

  r = pthread_barrier_wait (&bar);
  if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD)
    {
      puts ("second barrier_wait failed");
      exit (1);
    }

  void *result;
  if (pthread_join (th, &result) != 0)
    {
      puts ("pthread_join failed");
      return 1;
    }

  if (result != PTHREAD_CANCELED)
    {
      puts ("thread was not canceled");
      exit (1);
    }

  if (global != 0)
    {
      puts ("cancellation handler has been called");
      exit (1);
    }

  return 0;
}

Here is the call graph for this function:

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

Definition at line 39 of file tst-cancel8.c.

{
  /* Enable cancellation, but defer it.  */
  if (pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, NULL) != 0)
    {
      puts ("setcancelstate failed");
      exit (1);
    }
  if (pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, NULL) != 0)
    {
      puts ("setcanceltype failed");
      exit (1);
    }

  /* Add cleanup handler.  */
  pthread_cleanup_push (cleanup, NULL);

  /* Synchronize with the main thread.  */
  int r = pthread_barrier_wait (&bar);
  if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD)
    {
      puts ("tf: first barrier_wait failed");
      exit (1);
    }

  /* And again.  Once this is done the main thread should have canceled
     this thread.  */
  r = pthread_barrier_wait (&bar);
  if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD)
    {
      puts ("tf: second barrier_wait failed");
      exit (1);
    }

  /* Remove the cleanup handler without executing it.  */
  pthread_cleanup_pop (0);

  /* Now react on the cancellation.  */
  pthread_testcancel ();

  /* This call should never return.  */
  return NULL;
}

Here is the call graph for this function:


Variable Documentation

pthread_barrier_t bar [static]

Definition at line 26 of file tst-cancel8.c.

int global [static]

Definition at line 28 of file tst-cancel8.c.