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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* $Id$ */
/* 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 <glibtop.h>
#include <glibtop/error.h>
#include <glibtop/xmalloc.h>
#include <glibtop/procmap.h>
#include <glibtop_private.h>
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);
static const unsigned long _glibtop_sysdeps_map_entry_vmfile =
(1L << GLIBTOP_MAP_ENTRY_INODE) + (1L << GLIBTOP_MAP_ENTRY_DEVICE) +
(1L << GLIBTOP_MAP_ENTRY_FILENAME);
/* Init function. */
int
glibtop_init_proc_map_k (glibtop *server)
{
server->sysdeps.proc_map = _glibtop_sysdeps_proc_map;
return 0;
}
/* Provides detailed information about a process. */
glibtop_map_entry *
glibtop_get_proc_map_k (glibtop *server, glibtop_proc_map *buf, pid_t pid)
{
glibtop_map_entry *retval = NULL;
libgtop_proc_maps_t *maps;
size_t count, max_len, i;
int ret;
glibtop_init_s (&server, GLIBTOP_SYSDEPS_PROC_MAP, 0);
memset (buf, 0, sizeof (glibtop_proc_map));
/* Get number of map entries. */
count = glibtop_get_proc_data_proc_maps_k (server, pid, NULL, 0);
/* Allocate memory. */
maps = glibtop_calloc_r (server, count, sizeof (libgtop_proc_maps_t));
max_len = count * sizeof (libgtop_proc_maps_t);
ret = glibtop_get_proc_data_proc_maps_k (server, pid, maps, max_len);
if (ret < 0) {
glibtop_free_r (server, maps);
return NULL;
}
/* Calculate number of map entries. */
count = ret / sizeof (libgtop_proc_maps_t);
/* Allocate memory for the result. */
retval = glibtop_calloc_r (server, count, sizeof (glibtop_map_entry));
for (i = 0; i < count; i++) {
char *filename;
retval [i].start = maps [i].header.start;
retval [i].end = maps [i].header.end;
retval [i].offset = maps [i].header.offset;
if (maps [i].header.perm & LIBGTOP_VM_READ)
retval [i].perm |= GLIBTOP_MAP_PERM_READ;
if (maps [i].header.perm & LIBGTOP_VM_WRITE)
retval [i].perm |= GLIBTOP_MAP_PERM_WRITE;
if (maps [i].header.perm & LIBGTOP_VM_EXEC)
retval [i].perm |= GLIBTOP_MAP_PERM_EXECUTE;
if (maps [i].header.perm & LIBGTOP_VM_SHARED)
retval [i].perm |= GLIBTOP_MAP_PERM_SHARED;
if (!(maps [i].header.perm & LIBGTOP_VM_MAYSHARE))
retval [i].perm |= GLIBTOP_MAP_PERM_PRIVATE;
retval [i].flags = _glibtop_sysdeps_map_entry;
if (maps [i].header.device || maps [i].header.inode) {
retval [i].device = maps [i].header.device;
retval [i].inode = maps [i].header.inode;
filename = maps [i].filename;
filename += maps [i].header.filename_offset;
strncpy (retval [i].filename, filename, GLIBTOP_MAP_FILENAME_LEN);
retval [i].filename [GLIBTOP_MAP_FILENAME_LEN-1] = '\0';
retval [i].flags |= _glibtop_sysdeps_map_entry_vmfile;
}
}
/* Free map entries. */
glibtop_free_r (server, maps);
/* Write retval. */
buf->number = count;
buf->size = sizeof (glibtop_map_entry);
buf->total = buf->number * sizeof (glibtop_map_entry);
buf->flags = _glibtop_sysdeps_proc_map;
return retval;
}
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