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glibc  2.9
Defines | Functions
tst-aio6.c File Reference
#include <aio.h>
#include <errno.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/time.h>
#include "../test-skeleton.c"

Go to the source code of this file.

Defines

#define TIMEOUT   10 /* sec */
#define TEST_FUNCTION   do_test ()

Functions

static int do_test (void)

Define Documentation

#define TEST_FUNCTION   do_test ()

Definition at line 31 of file tst-aio6.c.

#define TIMEOUT   10 /* sec */

Definition at line 28 of file tst-aio6.c.


Function Documentation

static int do_test ( void  ) [static]

Definition at line 33 of file tst-aio6.c.

{
  struct aiocb *arr[1];
  struct aiocb cb;
  char buf[100];
  struct timeval before;
  struct timeval after;
  struct timespec timeout;
  int fd[2];
  int result = 0;

  if (pipe (fd) != 0)
    {
      printf ("cannot create pipe: %m\n");
      return 1;
    }

  arr[0] = &cb;

  cb.aio_fildes = fd[0];
  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_NONE;

  /* Try to read from stdin where nothing will be available.  */
  if (aio_read (arr[0]) < 0)
    {
      if (errno == ENOSYS)
       {
         puts ("no aio support in this configuration");
         return 0;
       }
      printf ("aio_read failed: %m\n");
      return 1;
    }

  /* Get the current time.  */
  gettimeofday (&before, NULL);

  /* Wait for input which is unsuccessful and therefore the function will
     time out.  */
  timeout.tv_sec = 3;
  timeout.tv_nsec = 0;
  if (aio_suspend ((const struct aiocb *const*) arr, 1, &timeout) != -1)
    {
      puts ("aio_suspend() didn't return -1");
      result = 1;
    }
  else if (errno != EAGAIN)
    {
      puts ("error not set to EAGAIN");
      result = 1;
    }
  else
    {
      gettimeofday (&after, NULL);
      if (after.tv_sec < before.tv_sec + 1)
       {
         puts ("timeout came too early");
         result = 1;
       }
    }

  return result;
}

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