rt/tst-aio2.c

   1 /* Test for notification mechanism in lio_listio.
   2    Copyright (C) 2000,02 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Ulrich Drepper <drepper@cygnus.com>, 2000.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21 #include <aio.h>
  22 #include <signal.h>
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <unistd.h>
  26 #include <errno.h>
  27
  28 int flag;
  29
  30
  31 static void
  32 thrfct (sigval_t arg)
  33 {
  34   flag = 1;
  35 }
  36
  37
  38 static int
  39 do_test (int argc, char *argv[])
  40 {
  41   char name[] = "/tmp/aio2.XXXXXX";
  42   int fd;
  43   struct aiocb *arr[1];
  44   struct aiocb cb;
  45   static const char buf[] = "Hello World\n";
  46
  47   fd = mkstemp (name);
  48   if (fd == -1)
  49     {
  50       printf ("cannot open temp name: %m\n");
  51       return 1;
  52     }
  53
  54   unlink (name);
  55
  56   arr[0] = &cb;
  57
  58   cb.aio_fildes = fd;
  59   cb.aio_lio_opcode = LIO_WRITE;
  60   cb.aio_reqprio = 0;
  61   cb.aio_buf = (void *) buf;
  62   cb.aio_nbytes = sizeof (buf) - 1;
  63   cb.aio_offset = 0;
  64   cb.aio_sigevent.sigev_notify = SIGEV_THREAD;
  65   cb.aio_sigevent.sigev_notify_function = thrfct;
  66   cb.aio_sigevent.sigev_notify_attributes = NULL;
  67   cb.aio_sigevent.sigev_value.sival_ptr = NULL;
  68
  69   if (lio_listio (LIO_WAIT, arr, 1, NULL) < 0)
  70     {
  71       if (errno == ENOSYS)
  72         {
  73           puts ("no aio support in this configuration");
  74           return 0;
  75         }
  76       printf ("lio_listio failed: %m\n");
  77       return 1;
  78     }
  79
  80   if (flag != 0)
  81     {
  82       puts ("thread created, should not have happened");
  83       return 1;
  84     }
  85
  86   puts ("all OK");
  87
  88   return 0;
  89 }
  90
  91 #include "../test-skeleton.c"