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/* Copyright (C) 1998-99 Martin Baulig
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This file is part of LibGTop 1.0.
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Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
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LibGTop is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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LibGTop is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with LibGTop; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include <config.h>
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#include <glibtop.h>
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#include <glibtop/error.h>
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#include <glibtop/procmem.h>
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#include <glibtop_suid.h>
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#include <sys/user.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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#include <mach.h>
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#include <mach/mach_types.h>
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#include <mach/task_info.h>
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static const unsigned long _glibtop_sysdeps_proc_mem =
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(1L << GLIBTOP_PROC_MEM_VSIZE) + (1L << GLIBTOP_PROC_MEM_RESIDENT) +
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(1L << GLIBTOP_PROC_MEM_RSS);
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/* Init function. */
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void
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_glibtop_init_proc_mem_p (glibtop *server)
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{
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server->sysdeps.proc_mem = _glibtop_sysdeps_proc_mem;
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}
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/* Provides detailed information about a process. */
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void
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glibtop_get_proc_mem_p (glibtop *server, glibtop_proc_mem *buf,
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pid_t pid)
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{
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task_basic_info_data_t taskinfo;
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int ret, info_count;
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task_t thistask;
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struct user u;
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glibtop_init_p (server, GLIBTOP_SYSDEPS_PROC_MEM, 0);
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memset (buf, 0, sizeof (glibtop_proc_mem));
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/* Get task structure. */
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ret = task_by_unix_pid (task_self(), pid, &thistask);
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if (ret != KERN_SUCCESS) return;
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/* Get taskinfo about this task. */
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info_count = TASK_BASIC_INFO_COUNT;
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ret = task_info (thistask, TASK_BASIC_INFO,
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(task_info_t) &taskinfo, &info_count);
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if (ret != KERN_SUCCESS) return;
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buf->resident = taskinfo.resident_size;
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buf->rss = taskinfo.resident_size;
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buf->vsize = taskinfo.virtual_size;
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/* !!! THE FOLLOWING CODE RUNS SUID ROOT - CHANGE WITH CAUTION !!! */
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glibtop_suid_enter (server);
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ret = table (TBL_UAREA, pid, (char *) &u, 1,
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sizeof (struct user));
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glibtop_suid_leave (server);
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/* !!! END OF SUID ROOT PART !!! */
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if (ret != 1) return;
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buf->rss_rlim = u.u_rlimit [RLIMIT_RSS].rlim_cur;
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buf->share = u.u_ru.ru_ixrss;
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buf->flags |= (1L << GLIBTOP_PROC_MEM_RSS_RLIM) |
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(1L << GLIBTOP_PROC_MEM_SHARE);
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}
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