ROX-Filer/src/directory.c

   1 /* vi: set cindent:
   2  * $Id$
   3  *
   4  * ROX-Filer, filer for the ROX desktop project
   5  * By Thomas Leonard, <tal197@ecs.soton.ac.uk>.
   6  */
   7
   8 /* directory.c - code for handling directories (non-GUI) */
   9
  10 #include <stdlib.h>
  11 #include <stdio.h>
  12
  13 #include <glib.h>
  14 #include <sys/types.h>
  15 #include <dirent.h>
  16
  17 #include "support.h"
  18 #include "directory.h"
  19
  20 /* Calls the callback function for each object in the directory.
  21  * '.' and '..' are ignored.
  22  * Returns FALSE on error (errno is set).
  23  */
  24 gboolean directory_scan(Directory *directory,
  25                         void (*callback)(char *name, gpointer user_data),
  26                         gpointer user_data)
  27 {
  28         DIR             *dir;
  29         struct dirent   *next;
  30
  31         g_return_val_if_fail(directory != NULL, FALSE);
  32
  33         dir = opendir(directory->path);
  34         if (!dir)
  35                 return FALSE;
  36
  37         while ((next = readdir(dir)))
  38         {
  39                 char    *name = next->d_name;
  40
  41                 /* Ignore '.' and '..' */
  42                 if (*name == '.' && (name[1] == '\0'
  43                                         || (name[1] == '.' && name[2] == '\0')))
  44                         continue;
  45
  46                 callback(name, user_data);
  47         }
  48
  49         /* An error here should be ignored - NFS seems to generate
  50          * unnecessary errors.
  51          */
  52         closedir(dir);
  53
  54         return TRUE;
  55 }
  56
  57 /* Public methods */
  58
  59 /* Create a new directory for the given path.
  60  * Path will be pathdup'd. The directory is NOT scanned yet.
  61  */
  62 Directory *directory_new(char *path)
  63 {
  64         Directory       *dir;
  65
  66         g_return_val_if_fail(path != NULL, NULL);
  67
  68         dir = g_malloc(sizeof(Directory));
  69
  70         dir->path = pathdup(path);
  71         dir->files = NULL;              /* Mark as unscanned */
  72         dir->number_of_files = 0;
  73
  74         return dir;
  75 }
  76
  77 void directory_destroy(Directory *dir)
  78 {
  79         g_return_if_fail(dir != NULL);
  80
  81         printf("[ destroy '%s' ]\n", dir->path);
  82         g_free(dir->path);
  83         g_free(dir);
  84 }