c39587c1c2
git-svn-id: http://svn-archive.gnome.org/svn/NetworkManager/trunk@2 4912f4e0-d625-0410-9fb7-b9a5a253dbdc
125 lines
2.8 KiB
C
125 lines
2.8 KiB
C
/* -*- mode: C; c-file-style: "linux" -*- */
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/* MemProf -- memory profiler and leak detector
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* Copyright 1999, 2000, 2001, Red Hat, Inc.
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* Copyright 2002, Kristian Rietveld
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/*====*/
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#include <glib.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#include "memprof.h"
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/************************************************************
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* Inode finding code - not needed for kernel 2.2 or greater
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************************************************************/
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GHashTable *inode_table = NULL;
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typedef struct {
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dev_t device;
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ino_t inode;
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gchar *name;
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} Inode;
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static guint
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inode_hash (gconstpointer data)
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{
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return (((Inode *)data)->device + (((Inode *)data)->inode << 11));
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}
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static gint
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inode_compare (gconstpointer a, gconstpointer b)
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{
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return ((((Inode *)a)->device == ((Inode *)b)->device) &&
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(((Inode *)a)->inode == ((Inode *)b)->inode));
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}
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void
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read_inode (const gchar *path)
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{
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struct stat stbuf;
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g_return_if_fail (path != NULL);
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if (!inode_table)
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inode_table = g_hash_table_new (inode_hash, inode_compare);
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if (!stat (path, &stbuf)) {
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Inode *inode = g_new (Inode, 1);
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inode->device = stbuf.st_dev;
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inode->inode = stbuf.st_ino;
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if (!g_hash_table_lookup (inode_table, inode)) {
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inode->name = g_strdup (path);
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g_hash_table_insert (inode_table, inode, inode);
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} else
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g_free (inode);
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}
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}
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static void
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read_inodes ()
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{
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static const char *directories[] = {
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"/lib",
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"/usr/lib",
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"/usr/X11R6/lib",
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"/usr/local/lib",
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"/opt/gnome/lib",
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NULL
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};
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const char **dirname;
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for (dirname = directories; *dirname; dirname++)
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{
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DIR *dir = opendir (*dirname);
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if (dir) {
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struct dirent *ent;
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while ((ent = readdir (dir))) {
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gchar buf[1024];
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snprintf(buf, 1024-1, "%s/%s", *dirname, ent->d_name);
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read_inode (buf);
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}
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closedir (dir);
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}
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}
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}
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gchar *
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locate_inode (dev_t device, ino_t inode)
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{
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Inode lookup;
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Inode *result;
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lookup.device = device;
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lookup.inode = inode;
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if (!inode_table)
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read_inodes ();
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result = g_hash_table_lookup (inode_table, &lookup);
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if (result)
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return result->name;
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else
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return NULL;
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}
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