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/* 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., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <config.h>
#include <glibtop.h>
#include <glibtop/error.h>
#include <glibtop/procmem.h>
#include <glibtop_suid.h>
#include <sys/user.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <mach.h>
#include <mach/mach_types.h>
#include <mach/task_info.h>
static const unsigned long _glibtop_sysdeps_proc_mem =
(1L << GLIBTOP_PROC_MEM_VSIZE) + (1L << GLIBTOP_PROC_MEM_RESIDENT) +
(1L << GLIBTOP_PROC_MEM_RSS);
/* Init function. */
void
_glibtop_init_proc_mem_p (glibtop *server)
{
server->sysdeps.proc_mem = _glibtop_sysdeps_proc_mem;
}
/* Provides detailed information about a process. */
void
glibtop_get_proc_mem_p (glibtop *server, glibtop_proc_mem *buf,
pid_t pid)
{
task_basic_info_data_t taskinfo;
int ret, info_count;
task_t thistask;
struct user u;
glibtop_init_p (server, GLIBTOP_SYSDEPS_PROC_MEM, 0);
memset (buf, 0, sizeof (glibtop_proc_mem));
/* Get task structure. */
ret = task_by_unix_pid (task_self(), pid, &thistask);
if (ret != KERN_SUCCESS) return;
/* Get taskinfo about this task. */
info_count = TASK_BASIC_INFO_COUNT;
ret = task_info (thistask, TASK_BASIC_INFO,
(task_info_t) &taskinfo, &info_count);
if (ret != KERN_SUCCESS) return;
buf->resident = taskinfo.resident_size;
buf->rss = taskinfo.resident_size;
buf->vsize = taskinfo.virtual_size;
/* !!! THE FOLLOWING CODE RUNS SUID ROOT - CHANGE WITH CAUTION !!! */
glibtop_suid_enter (server);
ret = table (TBL_UAREA, pid, (char *) &u, 1,
sizeof (struct user));
glibtop_suid_leave (server);
/* !!! END OF SUID ROOT PART !!! */
if (ret != 1) return;
buf->rss_rlim = u.u_rlimit [RLIMIT_RSS].rlim_cur;
buf->share = u.u_ru.ru_ixrss;
buf->flags |= (1L << GLIBTOP_PROC_MEM_RSS_RLIM) |
(1L << GLIBTOP_PROC_MEM_SHARE);
}
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