116 lines
3.0 KiB
C
116 lines
3.0 KiB
C
/* $Id$ */
|
|
|
|
/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
|
|
This file is part of the Gnome Top Library.
|
|
Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
|
|
|
|
The Gnome Top Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public License as
|
|
published by the Free Software Foundation; either version 2 of the
|
|
License, or (at your option) any later version.
|
|
|
|
The Gnome Top Library 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If not,
|
|
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include <glibtop.h>
|
|
#include <glibtop/error.h>
|
|
#include <glibtop/xmalloc.h>
|
|
#include <glibtop/inodedb.h>
|
|
|
|
#include <pwd.h>
|
|
#include <gdbm.h>
|
|
|
|
#ifndef SYSTEM_INODEDB
|
|
#define SYSTEM_INODEDB "/usr/var/libgtop/inodedb.db"
|
|
#endif
|
|
|
|
glibtop_inodedb *
|
|
glibtop_inodedb_open_s (glibtop *server, unsigned databases,
|
|
unsigned long cachesize)
|
|
{
|
|
glibtop_inodedb *inodedb;
|
|
char filename [BUFSIZ];
|
|
struct passwd *pwd;
|
|
struct stat statb;
|
|
|
|
if (!databases)
|
|
databases = GLIBTOP_INODEDB_ALL;
|
|
|
|
inodedb = glibtop_calloc_r (server, 1, sizeof (glibtop_inodedb));
|
|
|
|
if (stat (SYSTEM_INODEDB, &statb))
|
|
databases &= ~GLIBTOP_INODEDB_SYSTEM;
|
|
|
|
if (databases & GLIBTOP_INODEDB_SYSTEM) {
|
|
inodedb->system_dbf = gdbm_open
|
|
(SYSTEM_INODEDB, 0, GDBM_READER, 0, 0);
|
|
if (!inodedb->system_dbf)
|
|
glibtop_error_io_r
|
|
(server, "gdbm_open (%s)", SYSTEM_INODEDB);
|
|
}
|
|
|
|
pwd = getpwuid (getuid ());
|
|
if (!pwd) glibtop_error_io_r (server, "getpwuid");
|
|
|
|
sprintf (filename, "%s/var/libgtop/inodedb.db", pwd->pw_dir);
|
|
|
|
if (stat (filename, &statb))
|
|
databases &= ~GLIBTOP_INODEDB_USER;
|
|
|
|
if (databases & GLIBTOP_INODEDB_USER) {
|
|
inodedb->user_dbf = gdbm_open
|
|
(filename, 0, GDBM_READER, 0, 0);
|
|
if (!inodedb->user_dbf)
|
|
glibtop_error_io_r
|
|
(server, "gdbm_open (%s)", filename);
|
|
}
|
|
|
|
return inodedb;
|
|
}
|
|
|
|
const char *
|
|
glibtop_inodedb_lookup_s (glibtop *server,
|
|
glibtop_inodedb *inodedb,
|
|
u_int64_t device, u_int64_t inode)
|
|
{
|
|
glibtop_inodedb_key key;
|
|
datum d_key, d_content;
|
|
|
|
d_key.dptr = (void *) &key;
|
|
d_key.dsize = sizeof (key);
|
|
|
|
key.device = device;
|
|
key.inode = inode;
|
|
|
|
if (inodedb->system_dbf) {
|
|
d_content = gdbm_fetch (inodedb->system_dbf, d_key);
|
|
if (d_content.dptr) return d_content.dptr;
|
|
}
|
|
|
|
if (inodedb->user_dbf) {
|
|
d_content = gdbm_fetch (inodedb->user_dbf, d_key);
|
|
if (d_content.dptr) return d_content.dptr;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
glibtop_inodedb_close_s (glibtop *server, glibtop_inodedb *inodedb)
|
|
{
|
|
if (inodedb->system_dbf)
|
|
gdbm_close (inodedb->system_dbf);
|
|
|
|
if (inodedb->user_dbf)
|
|
gdbm_close (inodedb->user_dbf);
|
|
|
|
glibtop_free_r (server, inodedb);
|
|
}
|