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/* $Id$ */
/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
This file is part of the Gnome Top Library.
Contributed by Joshua Sled <jsled@xcf.berkeley.edu>, July 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/procmap.h>
static const unsigned long _glibtop_sysdeps_proc_map =
(1 << GLIBTOP_PROC_MAP_NUMBER) + (1 << GLIBTOP_PROC_MAP_TOTAL) +
(1 << GLIBTOP_PROC_MAP_SIZE);
static const unsigned long _glibtop_sysdeps_map_entry =
(1 << GLIBTOP_MAP_ENTRY_START) + (1 << GLIBTOP_MAP_ENTRY_END) +
(1 << GLIBTOP_MAP_ENTRY_OFFSET) + (1 << GLIBTOP_MAP_ENTRY_PERM) +
(1 << GLIBTOP_MAP_ENTRY_INODE) + (1 << GLIBTOP_MAP_ENTRY_DEVICE) +
(1 << 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 fn [BUFSIZ];
glibtop_map_entry *entry_list = NULL;
int rv, n = 0;
FILE *maps;
glibtop_init_s (&server, GLIBTOP_SYSDEPS_PROC_MAP, 0);
memset (buf, 0, sizeof (glibtop_proc_map));
sprintf (fn, "/proc/%d/maps", pid);
maps = fopen (fn, "r");
if (!maps) return NULL;
do {
short dev_major, dev_minor;
unsigned long start, end, offset, inode, perm;
char flags [5];
size_t size;
rv = fscanf (maps,
"%08lx-%08lx %4c\n %08lx %02hx:%02hx %ld",
&start, &end, flags, &offset,
&dev_major, &dev_minor, &inode);
flags [4] = 0;
/* Compute access permissions. */
perm = 0;
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;
if (flags [3] == 'p')
perm |= GLIBTOP_MAP_PERM_PRIVATE;
/* Read filename. */
fn [0] = fgetc (maps);
if (fn [0] != '\n' && fn [0] != EOF) {
fscanf (maps, "%*[ ]%[^\n]\n", fn);
} else fn [0] = 0;
size = (n+1) * sizeof (glibtop_map_entry);
entry_list = glibtop_realloc_r (server, entry_list, size);
memset (&(entry_list [n]), 0, sizeof (glibtop_map_entry));
entry_list [n].flags = _glibtop_sysdeps_map_entry;
entry_list [n].start = (u_int64_t) start;
entry_list [n].end = (u_int64_t) end;
entry_list [n].offset = (u_int64_t) offset;
entry_list [n].perm = (u_int64_t) perm;
entry_list [n].device = (u_int64_t) (dev_major << 8) +
(u_int64_t) dev_minor;
entry_list [n].inode = (u_int64_t) inode;
strncpy (entry_list [n].filename, fn, GLIBTOP_MAP_FILENAME_LEN);
entry_list [n].filename [GLIBTOP_MAP_FILENAME_LEN] = 0;
n++;
} while (rv != EOF && rv && fn [0] != EOF);
fclose (maps);
buf->number = n;
buf->size = sizeof (glibtop_map_entry);
buf->total = n * sizeof (glibtop_map_entry);
return entry_list;
}
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