rt/tst-aio64.c

   1 /* Tests for 64bit AIO in librt.
   2    Copyright (C) 1998, 1999 Free Software Foundation, Inc.
   3    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 #define _LARGEFILE_SOURCE 1
  21 #include <aio.h>
  22 #include <errno.h>
  23 #include <error.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include <unistd.h>
  27 #include <sys/stat.h>
  28
  29
  30 /* Prototype for our test function.  */
  31 extern void do_prepare (int argc, char *argv[]);
  32 extern int do_test (int argc, char *argv[]);
  33
  34 /* We have a preparation function.  */
  35 #define PREPARE do_prepare
  36
  37 /* We might need a bit longer timeout.  */
  38 #define TIMEOUT 20 /* sec */
  39
  40 /* This defines the `main' function and some more.  */
  41 #include <test-skeleton.c>
  42
  43
  44 /* These are for the temporary file we generate.  */
  45 char *name;
  46 int fd;
  47
  48 void
  49 do_prepare (int argc, char *argv[])
  50 {
  51   char name_len;
  52
  53   name_len = strlen (test_dir);
  54   name = malloc (name_len + sizeof ("/aioXXXXXX"));
  55   mempcpy (mempcpy (name, test_dir, name_len),
  56            "/aioXXXXXX", sizeof ("/aioXXXXXX"));
  57   add_temp_file (name);
  58
  59   /* Open our test file.   */
  60   fd = mkstemp (name);
  61   if (fd == -1)
  62     error (EXIT_FAILURE, errno, "cannot open test file `%s'", name);
  63 }
  64
  65
  66 int
  67 test_file (const void *buf, size_t size, int fd, const char *msg)
  68 {
  69   struct stat st;
  70   char tmp[size];
  71
  72   errno = 0;
  73   if (fstat (fd, &st) < 0)
  74     {
  75       error (0, errno, "%s: failed stat", msg);
  76       return 1;
  77     }
  78
  79   if (st.st_size != size)
  80     {
  81       error (0, errno, "%s: wrong size: %lu, should be %lu",
  82              msg, (unsigned long int) st.st_size, (unsigned long int) size);
  83       return 1;
  84     }
  85
  86   if (pread (fd, tmp, size, 0) != size)
  87     {
  88       error (0, errno, "%s: failed stat", msg);
  89       return 1;
  90     }
  91
  92   if (memcmp (buf, tmp, size) != 0)
  93     {
  94       error (0, errno, "%s: failed comparison", msg);
  95       return 1;
  96     }
  97
  98   printf ("%s test ok\n", msg);
  99
 100   return 0;
 101 }
 102
 103
 104 void
 105 do_wait (struct aiocb64 **cbp, size_t nent)
 106 {
 107   int go_on;
 108   do
 109     {
 110       size_t cnt;
 111
 112       aio_suspend64 ((const struct aiocb64 *const *) cbp, nent, NULL);
 113       go_on = 0;
 114       for (cnt = 0; cnt < nent; ++cnt)
 115         if (cbp[cnt] != NULL && aio_error64 (cbp[cnt]) == EINPROGRESS)
 116           go_on = 1;
 117         else
 118           cbp[cnt] = NULL;
 119     }
 120   while (go_on);
 121 }
 122
 123
 124 int
 125 do_test (int argc, char *argv[])
 126 {
 127   struct aiocb64 cbs[10];
 128   struct aiocb64 *cbp[10];
 129   char buf[1000];
 130   size_t cnt;
 131   int result = 0;
 132
 133   /* Preparation.  */
 134   for (cnt = 0; cnt < 10; ++cnt)
 135     {
 136       cbs[cnt].aio_fildes = fd;
 137       cbs[cnt].aio_reqprio = 0;
 138       cbs[cnt].aio_buf = memset (&buf[cnt * 100], '0' + cnt, 100);
 139       cbs[cnt].aio_nbytes = 100;
 140       cbs[cnt].aio_offset = cnt * 100;
 141       cbs[cnt].aio_sigevent.sigev_notify = SIGEV_NONE;
 142
 143       cbp[cnt] = &cbs[cnt];
 144     }
 145
 146   /* First a simple test.  */
 147   for (cnt = 10; cnt > 0; )
 148     aio_write64 (cbp[--cnt]);
 149   /* Wait 'til the results are there.  */
 150   do_wait (cbp, 10);
 151   /* Test this.  */
 152   result |= test_file (buf, sizeof (buf), fd, "aio_write");
 153
 154   /* Read now as we've written it.  */
 155   memset (buf, '\0', sizeof (buf));
 156   /* Issue the commands.  */
 157   for (cnt = 10; cnt > 0; )
 158     {
 159       --cnt;
 160       cbp[cnt] = &cbs[cnt];
 161       aio_read64 (cbp[cnt]);
 162     }
 163   /* Wait 'til the results are there.  */
 164   do_wait (cbp, 10);
 165   /* Test this.  */
 166   for (cnt = 0; cnt < 1000; ++cnt)
 167     if (buf[cnt] != '0' + (cnt / 100))
 168       {
 169         result = 1;
 170         error (0, 0, "comparison failed for aio_read test");
 171         break;
 172       }
 173
 174   if (cnt == 1000)
 175     puts ("aio_read test ok");
 176
 177   /* Remove the test file contents.  */
 178   if (ftruncate64 (fd, 0) < 0)
 179     {
 180       error (0, errno, "ftruncate failed\n");
 181       result = 1;
 182     }
 183
 184   /* Test lio_listio.  */
 185   for (cnt = 0; cnt < 10; ++cnt)
 186     {
 187       cbs[cnt].aio_lio_opcode = LIO_WRITE;
 188       cbp[cnt] = &cbs[cnt];
 189     }
 190   /* Issue the command.  */
 191   lio_listio64 (LIO_WAIT, cbp, 10, NULL);
 192   /* ...and immediately test it since we started it in wait mode.  */
 193   result |= test_file (buf, sizeof (buf), fd, "lio_listio (write)");
 194
 195   return result;
 196 }