Files
libgtop/sysdeps/linux/procmap.c
Benoît Dejean bfc14a1925 Added to repository. WIP.
* Makefile.am:
	* fsusage.c: (linux_2_6_0), (linux_2_4_0),
	(_glibtop_linux_get_fsusage_read_write): Added to repository. WIP.


	* glibtop_server.h: LINUX_VERSION -> LINUX_VERSION_CODE

	* netload.c: (glibtop_get_netload_s): Cleanups. Added support for
	hardware address. s/LINUX_VERSION/LINUX_VERSION_CODE/

	* open.c: (get_linux_version): s/LINUX_VERSION/LINUX_VERSION_CODE/

	* procmap.c: (glibtop_get_proc_map_s): glibify: used GArray

	* procuid.c: (glibtop_get_proc_uid_s): s/LINUX_VERSION/LINUX_VERSION_CODE/.
	Used Linux MKDEV.
2004-07-17 12:01:24 +00:00

138 lines
3.7 KiB
C

/* $Id$ */
/* Copyright (C) 1998-99 Martin Baulig
This file is part of LibGTop 1.0.
Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
LibGTop 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.
LibGTop 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 LibGTop; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include <glib.h>
#include <glibtop.h>
#include <glibtop/error.h>
#include <glibtop/procmap.h>
#include <linux/kdev_t.h>
#define PROC_MAPS_FORMAT ((sizeof(void*) == 8) \
? "%16lx-%16lx %4c %16lx %02hx:%02hx %lu%*[ ]%[^\n]\n" \
: "%08lx-%08lx %4c %08lx %02hx:%02hx %lu%*[ ]%[^\n]\n")
static const unsigned long _glibtop_sysdeps_proc_map =
(1L << GLIBTOP_PROC_MAP_NUMBER) + (1L << GLIBTOP_PROC_MAP_TOTAL) +
(1L << GLIBTOP_PROC_MAP_SIZE);
static const unsigned long _glibtop_sysdeps_map_entry =
(1L << GLIBTOP_MAP_ENTRY_START) + (1L << GLIBTOP_MAP_ENTRY_END) +
(1L << GLIBTOP_MAP_ENTRY_OFFSET) + (1L << GLIBTOP_MAP_ENTRY_PERM) +
(1L << GLIBTOP_MAP_ENTRY_INODE) + (1L << GLIBTOP_MAP_ENTRY_DEVICE) +
(1L << GLIBTOP_MAP_ENTRY_FILENAME);
/* Init function. */
void
glibtop_init_proc_map_s (glibtop *server)
{
server->sysdeps.proc_map = _glibtop_sysdeps_proc_map;
}
/* Provides detailed information about a process. */
glibtop_map_entry *
glibtop_get_proc_map_s (glibtop *server, glibtop_proc_map *buf, pid_t pid)
{
char procfilename[GLIBTOP_MAP_FILENAME_LEN+1];
GArray *entry_list = g_array_new(FALSE, FALSE,
sizeof(glibtop_map_entry));
FILE *maps;
glibtop_init_s (&server, GLIBTOP_SYSDEPS_PROC_MAP, 0);
memset (buf, 0, sizeof (glibtop_proc_map));
snprintf (procfilename, sizeof procfilename, "/proc/%d/maps", pid);
if((maps = fopen (procfilename, "r")) == NULL) {
return (glibtop_map_entry*) g_array_free(entry_list, TRUE);
}
while(TRUE)
{
unsigned long perm = 0;
int rv;
unsigned short dev_major, dev_minor;
unsigned long start, end, offset, inode;
char flags[4];
char filename [GLIBTOP_MAP_FILENAME_LEN+1];
glibtop_map_entry entry;
/* 8 arguments */
rv = fscanf (maps, PROC_MAPS_FORMAT,
&start, &end, flags, &offset,
&dev_major, &dev_minor, &inode, filename);
if(rv == EOF || rv < 7)
break;
if(rv == 7) /* no filename */
filename[0] = '\0';
/* Compute access permissions. */
if (flags [0] == 'r')
perm |= GLIBTOP_MAP_PERM_READ;
if (flags [1] == 'w')
perm |= GLIBTOP_MAP_PERM_WRITE;
if (flags [2] == 'x')
perm |= GLIBTOP_MAP_PERM_EXECUTE;
if (flags [3] == 's')
perm |= GLIBTOP_MAP_PERM_SHARED;
else if (flags [3] == 'p')
perm |= GLIBTOP_MAP_PERM_PRIVATE;
entry.flags = _glibtop_sysdeps_map_entry;
entry.start = (guint64) start;
entry.end = (guint64) end;
entry.offset = (guint64) offset;
entry.perm = (guint64) perm;
entry.device = (guint64) MKDEV(dev_major, dev_minor);
entry.inode = (guint64) inode;
g_strlcpy (entry.filename, filename, sizeof entry.filename);
g_array_append_val(entry_list, entry);
}
fclose (maps);
buf->flags = _glibtop_sysdeps_proc_map;
buf->number = entry_list->len;
buf->size = sizeof (glibtop_map_entry);
buf->total = buf->number * buf->size;
return (glibtop_map_entry*) g_array_free(entry_list, FALSE);
}