tests/test-memory.c

   1 /* nbdkit
   2  * Copyright Red Hat
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  * notice, this list of conditions and the following disclaimer.
  10  *
  11  * * Redistributions in binary form must reproduce the above copyright
  12  * notice, this list of conditions and the following disclaimer in the
  13  * documentation and/or other materials provided with the distribution.
  14  *
  15  * * Neither the name of Red Hat nor the names of its contributors may be
  16  * used to endorse or promote products derived from this software without
  17  * specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  21  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  22  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
  23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  26  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  27  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  28  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  29  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32
  33 #include <config.h>
  34
  35 #include <stdio.h>
  36 #include <stdlib.h>
  37 #include <stdint.h>
  38 #include <inttypes.h>
  39 #include <string.h>
  40 #include <unistd.h>
  41
  42 #include <guestfs.h>
  43
  44 #include "test.h"
  45
  46 int
  47 main (int argc, char *argv[])
  48 {
  49   guestfs_h *g;
  50   int r;
  51   char *data;
  52
  53   if (test_start_nbdkit ("-D", "memory.dir=1",
  54                          "memory", "100M",
  55                          "allocator=" ALLOCATOR, NULL) == -1)
  56     exit (EXIT_FAILURE);
  57
  58   g = guestfs_create ();
  59   if (g == NULL) {
  60     perror ("guestfs_create");
  61     exit (EXIT_FAILURE);
  62   }
  63
  64   r = guestfs_add_drive_opts (g, "",
  65                               GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
  66                               GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
  67                               GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
  68                               -1);
  69   if (r == -1)
  70     exit (EXIT_FAILURE);
  71
  72   if (guestfs_launch (g) == -1)
  73     exit (EXIT_FAILURE);
  74
  75   if (guestfs_part_disk (g, "/dev/sda", "mbr") == -1)
  76     exit (EXIT_FAILURE);
  77   if (guestfs_mkfs (g, "ext4", "/dev/sda1") == -1)
  78     exit (EXIT_FAILURE);
  79
  80   if (guestfs_mount_options (g, "discard", "/dev/sda1", "/") == -1)
  81     exit (EXIT_FAILURE);
  82
  83 #define filename "/hello.txt"
  84 #define content "hello, people of the world"
  85
  86   if (guestfs_write (g, filename, content, strlen (content)) == -1)
  87     exit (EXIT_FAILURE);
  88
  89   /* Force write through to and read back from disk. */
  90   if (guestfs_sync (g) == -1 || guestfs_drop_caches (g, 3) == -1)
  91     exit (EXIT_FAILURE);
  92
  93   data = guestfs_cat (g, filename);
  94   if (!data)
  95     exit (EXIT_FAILURE);
  96
  97   if (strcmp (data, content) != 0) {
  98     fprintf (stderr,
  99              "%s FAILED: unexpected content of %s file "
 100              "(actual: %s, expected: %s)\n",
 101              program_name, filename, data, content);
 102     exit (EXIT_FAILURE);
 103   }
 104
 105 #ifdef GUESTFS_HAVE_FSTRIM
 106   /* Delete the file and fstrim to test zeroing/trimming. */
 107   if (guestfs_rm (g, filename) == -1)
 108     exit (EXIT_FAILURE);
 109
 110   if (guestfs_fstrim (g, "/", -1) == -1)
 111     exit (EXIT_FAILURE);
 112 #endif
 113
 114   if (guestfs_shutdown (g) == -1)
 115     exit (EXIT_FAILURE);
 116
 117   guestfs_close (g);
 118   exit (EXIT_SUCCESS);
 119 }