Subversion Repositories openrisc_2011-10-31

/* Tests for cancelation handling.  */

#include <pthread.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <unistd.h>

#include <sys/stat.h>

int fd;

pthread_barrier_t bar;

static void

cleanup (void *arg)

{

  int nr = (int) (long int) arg;

  char s[30];

  char *cp = stpcpy (s, "cleanup ");

  *cp++ = '0' + nr;

  *cp++ = '\n';

  __libc_lseek (fd, 0, SEEK_END);

  __libc_write (fd, s, cp - s);

}

static void *

t1 (void *arg)

{

  pthread_cleanup_push (cleanup, (void *) (long int) 1);

  return NULL;

  pthread_cleanup_pop (0);

}

static void

inner (int a)

{

  pthread_cleanup_push (cleanup, (void *) (long int) a);

  if (a)

    return;

  pthread_cleanup_pop (0);

}

static void *

t2 (void *arg)

{

  pthread_cleanup_push (cleanup, (void *) (long int) 2);

  inner ((int) (long int) arg);

  return NULL;

  pthread_cleanup_pop (0);

}

/* This does not work yet.  */

volatile int cleanupokcnt;

static void

cleanupok (void *arg)

{

  ++cleanupokcnt;

}

static void *

t3 (void *arg)

{

  pthread_cleanup_push (cleanupok, (void *) (long int) 4);

  inner ((int) (long int) arg);

  pthread_exit (NULL);

  pthread_cleanup_pop (0);

}

static void

innerok (int a)

{

  pthread_cleanup_push (cleanupok, (void *) (long int) a);

  pthread_exit (NULL);

  pthread_cleanup_pop (0);

}

static void *

t4 (void *arg)

{

  pthread_cleanup_push (cleanupok, (void *) (long int) 6);

  innerok ((int) (long int) arg);

  pthread_cleanup_pop (0);

  return NULL;

}

int

main (int argc, char *argv[])

{

  pthread_t td;

  int err;

  char *tmp;

  const char *prefix;

  const char template[] = "thtstXXXXXX";

  struct stat64 st;

  int result = 0;

  prefix = argc > 1 ? argv[1] : "";

  tmp = (char *) alloca (strlen (prefix) + sizeof template);

  strcpy (stpcpy (tmp, prefix), template);

  fd = mkstemp (tmp);

  if (fd == -1)

    {

      printf ("cannot create temporary file: %m");

      exit (1);

    }

  unlink (tmp);

  err = pthread_barrier_init (&bar, NULL, 2);

  if (err != 0 )

    {

      printf ("cannot create barrier: %s\n", strerror (err));

      exit (1);

    }

#ifdef NOT_YET

  err = pthread_create (&td, NULL, t1, NULL);

  if (err != 0)

    {

      printf ("cannot create thread t1: %s\n", strerror (err));

      exit (1);

    }

  err = pthread_join (td, NULL);

  if (err != 0)

    {

      printf ("cannot join thread: %s\n", strerror (err));

      exit (1);

    }

  err = pthread_create (&td, NULL, t2, (void *) 3);

  if (err != 0)

    {

      printf ("cannot create thread t2: %s\n", strerror (err));

      exit (1);

    }

  err = pthread_join (td, NULL);

  if (err != 0)

    {

      printf ("cannot join thread: %s\n", strerror (err));

      exit (1);

    }

  err = pthread_create (&td, NULL, t3, (void *) 5);

  if (err != 0)

    {

      printf ("cannot create thread t3: %s\n", strerror (err));

      exit (1);

    }

  err = pthread_join (td, NULL);

  if (err != 0)

    {

      printf ("cannot join thread: %s\n", strerror (err));

      exit (1);

    }

#endif

  err = pthread_create (&td, NULL, t4, (void *) 7);

  if (err != 0)

    {

      printf ("cannot create thread t3: %s\n", strerror (err));

      exit (1);

    }

  err = pthread_join (td, NULL);

  if (err != 0)

    {

      printf ("cannot join thread: %s\n", strerror (err));

      exit (1);

    }

  if (fstat64 (fd, &st) < 0)

    {

      printf ("cannot stat temporary file: %m\n");

      result = 1;

    }

  else if (st.st_size != 0)

    {

      char buf[512];

      puts ("some cleanup handlers ran:");

      fflush (stdout);

      __lseek (fd, 0, SEEK_SET);

      while (1)

        {

          ssize_t n = read (fd, buf, sizeof buf);

          if (n <= 0)

            break;

          write (STDOUT_FILENO, buf, n);

        }

      result = 1;

    }

  // if (cleanupokcnt != 3)  will be three once t3 runs

  if (cleanupokcnt != 2)

    {

      printf ("cleanupokcnt = %d\n", cleanupokcnt);

      result = 1;

    }

  return result;

}