tests/test-memory.c

   1 /* nbdkit
   2  * Copyright (C) 2017 Red Hat Inc.
   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", "memory", "100M", NULL) == -1)
  54     exit (EXIT_FAILURE);
  55
  56   g = guestfs_create ();
  57   if (g == NULL) {
  58     perror ("guestfs_create");
  59     exit (EXIT_FAILURE);
  60   }
  61
  62   r = guestfs_add_drive_opts (g, "",
  63                               GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
  64                               GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
  65                               GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
  66                               -1);
  67   if (r == -1)
  68     exit (EXIT_FAILURE);
  69
  70   if (guestfs_launch (g) == -1)
  71     exit (EXIT_FAILURE);
  72
  73   if (guestfs_part_disk (g, "/dev/sda", "mbr") == -1)
  74     exit (EXIT_FAILURE);
  75   if (guestfs_mkfs (g, "ext4", "/dev/sda1") == -1)
  76     exit (EXIT_FAILURE);
  77
  78   if (guestfs_mount_options (g, "discard", "/dev/sda1", "/") == -1)
  79     exit (EXIT_FAILURE);
  80
  81 #define filename "/hello.txt"
  82 #define content "hello, people of the world"
  83
  84   if (guestfs_write (g, filename, content, strlen (content)) == -1)
  85     exit (EXIT_FAILURE);
  86
  87   /* Force write through to and read back from disk. */
  88   if (guestfs_sync (g) == -1 || guestfs_drop_caches (g, 3) == -1)
  89     exit (EXIT_FAILURE);
  90
  91   data = guestfs_cat (g, filename);
  92   if (!data)
  93     exit (EXIT_FAILURE);
  94
  95   if (strcmp (data, content) != 0) {
  96     fprintf (stderr,
  97              "%s FAILED: unexpected content of %s file "
  98              "(actual: %s, expected: %s)\n",
  99              program_name, filename, data, content);
 100     exit (EXIT_FAILURE);
 101   }
 102
 103 #ifdef GUESTFS_HAVE_FSTRIM
 104   /* Delete the file and fstrim to test zeroing/trimming. */
 105   if (guestfs_rm (g, filename) == -1)
 106     exit (EXIT_FAILURE);
 107
 108   if (guestfs_fstrim (g, "/", -1) == -1)
 109     exit (EXIT_FAILURE);
 110 #endif
 111
 112   if (guestfs_shutdown (g) == -1)
 113     exit (EXIT_FAILURE);
 114
 115   guestfs_close (g);
 116   exit (EXIT_SUCCESS);
 117 }