desktop/unx/source/pagein.c

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include "file_image.h"
  21 #include "pagein.h"
  22
  23 #include <errno.h>
  24 #include <stdio.h>
  25 #include <string.h>
  26 #include <sys/stat.h>
  27 #ifdef LINUX
  28 #include <sys/sysmacros.h>
  29 #endif
  30
  31 /* do_pagein */
  32 static void do_pagein (const char * filename)
  33 {
  34     int result;
  35     file_image image = FILE_IMAGE_INITIALIZER;
  36
  37     if (file_image_open (&image, filename) != 0)
  38         return;
  39
  40     if ((result = file_image_pagein (&image)) != 0)
  41     {
  42         fprintf (stderr, "file_image_pagein %s: %s\n", filename, strerror(result));
  43     }
  44
  45     file_image_close (&image);
  46 }
  47
  48 static int isRotational(char const * path)
  49 {
  50     int ret = 1;
  51 #ifdef LINUX
  52     FILE * fp = NULL;
  53     char fullpath[4096];
  54     struct stat out;
  55     int major, minor;
  56     char type;
  57     if (stat(path , &out) == -1)
  58         return ret;
  59     major = major(out.st_dev);
  60     minor = 0; /* minor(out.st_dev); only the device itself has a queue */
  61     sprintf(fullpath,"/sys/dev/block/%d:%d/queue/rotational",major,minor);
  62     if ((fp = fopen(fullpath, "r")) == NULL)
  63         return ret;
  64     if (fgets(&type, 1, fp))
  65         ret = type == '1';
  66     fclose(fp);
  67 #endif
  68     return ret;
  69 }
  70
  71 void pagein_execute(char const * path, char const * file)
  72 {
  73     char fullpath[4096];
  74     char *p = NULL;
  75     FILE   * fp = NULL;
  76     if(!isRotational(path))
  77         return;
  78     memset(fullpath, 0, sizeof(fullpath));
  79     strncpy (fullpath, path, 3000);
  80     if (!(p = strrchr (fullpath, '/')))
  81         p = fullpath;
  82     else
  83         p++;
  84     strncpy(p, file, 1024);
  85     p[strlen(p)] = '\0';
  86     if ((fp = fopen (fullpath, "r")) == NULL)
  87     {
  88
  89         fprintf (stderr, "fopen %s: %s\n", fullpath, strerror(errno));
  90         return;
  91     }
  92     while (fgets (p, 1024, fp) != NULL)
  93     {
  94         p[strlen(p) - 1] = '\0';
  95
  96         /* paths relative to the location of the pagein file */
  97         do_pagein (fullpath);
  98     }
  99     fclose (fp);
 100 }
 101
 102 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */