testsuite/test-loaded.c

   1 /*
   2  * Copyright (C) 2012-2013  ProFUSION embedded systems
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include <errno.h>
  19 #include <inttypes.h>
  20 #include <stddef.h>
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24 #include <unistd.h>
  25
  26 #include <libkmod/libkmod.h>
  27
  28 #include "testsuite.h"
  29
  30 static int loaded_1(const struct test *t)
  31 {
  32         struct kmod_ctx *ctx;
  33         const char *null_config = NULL;
  34         struct kmod_list *list, *itr;
  35         int err;
  36
  37         ctx = kmod_new(NULL, &null_config);
  38         if (ctx == NULL)
  39                 exit(EXIT_FAILURE);
  40
  41         err = kmod_module_new_from_loaded(ctx, &list);
  42         if (err < 0) {
  43                 fprintf(stderr, "%s\n", strerror(-err));
  44                 kmod_unref(ctx);
  45                 exit(EXIT_FAILURE);
  46         }
  47
  48         printf("Module                  Size  Used by\n");
  49
  50         kmod_list_foreach(itr, list) {
  51                 struct kmod_module *mod = kmod_module_get_module(itr);
  52                 const char *name = kmod_module_get_name(mod);
  53                 int use_count = kmod_module_get_refcnt(mod);
  54                 long size = kmod_module_get_size(mod);
  55                 struct kmod_list *holders, *hitr;
  56                 int first = 1;
  57
  58                 printf("%-19s %8ld  %d ", name, size, use_count);
  59                 holders = kmod_module_get_holders(mod);
  60                 kmod_list_foreach(hitr, holders) {
  61                         struct kmod_module *hm = kmod_module_get_module(hitr);
  62
  63                         if (!first)
  64                                 putchar(',');
  65                         else
  66                                 first = 0;
  67
  68                         fputs(kmod_module_get_name(hm), stdout);
  69                         kmod_module_unref(hm);
  70                 }
  71                 putchar('\n');
  72                 kmod_module_unref_list(holders);
  73                 kmod_module_unref(mod);
  74         }
  75         kmod_module_unref_list(list);
  76
  77         kmod_unref(ctx);
  78
  79         return EXIT_SUCCESS;
  80 }
  81 DEFINE_TEST(loaded_1,
  82         .description = "check if list of module is created",
  83         .config = {
  84                 [TC_ROOTFS] = TESTSUITE_ROOTFS "test-loaded/",
  85         },
  86         .need_spawn = true,
  87         .output = {
  88                 .out = TESTSUITE_ROOTFS "test-loaded/correct.txt",
  89         });
  90
  91 TESTSUITE_MAIN();