Back to index

glibc  2.9
Defines | Functions | Variables
tst-kill6.c File Reference
#include <errno.h>
#include <pthread.h>
#include <semaphore.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "../test-skeleton.c"

Go to the source code of this file.

Defines

#define N   20
#define TEST_FUNCTION   do_test ()

Functions

static void handler (int sig)
static void * tf (void *a)
int do_test (void)

Variables

static pthread_t receiver
static sem_t sem
static pthread_barrier_t b

Define Documentation

#define N   20
#define TEST_FUNCTION   do_test ()

Definition at line 161 of file tst-kill6.c.


Function Documentation

int do_test ( void  )

Definition at line 71 of file tst-kill6.c.

{
  struct sigaction sa;
  sigemptyset (&sa.sa_mask);
  sa.sa_flags = 0;
  sa.sa_handler = handler;
  if (sigaction (SIGUSR1, &sa, NULL) != 0)
    {
      puts ("sigaction failed");
      exit (1);
    }

#define N 20

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

  pthread_attr_t a;

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

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

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

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

  if (sem_init (&sem, 0, 0) != 0)
    {
      puts ("sem_init failed");
      exit (1);
    }

  for (i = 0; i < N * 10; ++i)
    {
      receiver = th[i % N];

      if (pthread_kill (receiver, SIGUSR1) != 0)
       {
         puts ("kill failed");
         exit (1);
       }

      if (TEMP_FAILURE_RETRY (sem_wait (&sem)) != 0)
       {
         puts ("sem_wait failed");
         exit (1);
       }
    }

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

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

  return 0;
}

Here is the call graph for this function:

static void handler ( int  sig) [static]

Definition at line 34 of file tst-kill6.c.

{
  if (sig != SIGUSR1)
    {
      write (STDOUT_FILENO, "wrong signal\n", 13);
      _exit (1);
    }

  if (pthread_self () != receiver)
    {
      write (STDOUT_FILENO, "not the intended receiver\n", 26);
      _exit (1);
    }

  if (sem_post (&sem) != 0)
    {
      write (STDOUT_FILENO, "sem_post failed\n", 16);
      _exit (1);
    }
}

Here is the call graph for this function:

static void* tf ( void *  a) [static]

Definition at line 57 of file tst-kill6.c.

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

  return NULL;
}

Here is the call graph for this function:


Variable Documentation

pthread_barrier_t b [static]

Definition at line 31 of file tst-kill6.c.

pthread_t receiver [static]

Definition at line 29 of file tst-kill6.c.

sem_t sem [static]

Definition at line 30 of file tst-kill6.c.