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