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/**
*
* cpulimit - a cpu limiter for Linux
*
* Copyright (C) 2005-2012, by: Angelo Marletta <marlonx80@hotmail.com>
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef __PROCESS_ITERATOR_H
#define __PROCESS_ITERATOR_H
#include <unistd.h>
#include <limits.h>
#include <dirent.h>
#ifdef __FreeBSD__
#include <kvm.h>
#endif
// process descriptor
struct process {
//pid of the process
pid_t pid;
//pid of the process
pid_t ppid;
//start time
int starttime;
//total number of jiffies used by the process at time last_sample
int last_jiffies;
//actual cpu usage estimation (value in range 0-1)
double cpu_usage;
//1 if the process is zombie
int is_zombie;
//absolute path of the executable file
char command[PATH_MAX+1];
};
struct process_iterator {
#ifdef __linux__
DIR *dip;
struct dirent *dit;
#elif defined __APPLE__
struct kinfo_proc *procList;
#elif defined __FreeBSD__
kvm_t *kd;
struct kinfo_proc *procs;
int count;
int i;
#endif
};
int init_process_iterator(struct process_iterator *i);
int read_next_process(struct process_iterator *i, struct process *p);
int close_process_iterator(struct process_iterator *i);
#endif
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