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glibc  2.9
Functions | Variables
tst-aio3.c File Reference
#include <aio.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include "../test-skeleton.c"

Go to the source code of this file.

Functions

static void thrfct (sigval_t arg)
static int do_test (int argc, char *argv[])

Variables

static pthread_barrier_t b

Function Documentation

static int do_test ( int  argc,
char *  argv[] 
) [static]

Definition at line 43 of file tst-aio3.c.

{
  char name[] = "/tmp/aio3.XXXXXX";
  int fd;
  struct aiocb *arr[1];
  struct aiocb cb;
  static const char buf[] = "Hello World\n";

  fd = mkstemp (name);
  if (fd == -1)
    {
      printf ("cannot open temp name: %m\n");
      return 1;
    }

  unlink (name);

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

  arr[0] = &cb;

  cb.aio_fildes = fd;
  cb.aio_lio_opcode = LIO_WRITE;
  cb.aio_reqprio = 0;
  cb.aio_buf = (void *) buf;
  cb.aio_nbytes = sizeof (buf) - 1;
  cb.aio_offset = 0;
  cb.aio_sigevent.sigev_notify = SIGEV_THREAD;
  cb.aio_sigevent.sigev_notify_function = thrfct;
  cb.aio_sigevent.sigev_notify_attributes = NULL;
  cb.aio_sigevent.sigev_value.sival_ptr = NULL;

  if (lio_listio (LIO_NOWAIT, arr, 1, NULL) < 0)
    {
      if (errno == ENOSYS)
       {
         puts ("no aio support in this configuration");
         return 0;
       }
      printf ("lio_listio failed: %m\n");
      return 1;
    }

  if (aio_suspend ((const struct aiocb *const *) arr, 1, NULL) < 0)
    {
      printf ("aio_suspend failed: %m\n");
      return 1;
    }

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

  puts ("all OK");

  return 0;
}

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static void thrfct ( sigval_t  arg) [static]

Definition at line 31 of file tst-aio3.c.

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

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Variable Documentation

pthread_barrier_t b [static]

Definition at line 27 of file tst-aio3.c.