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-rw-r--r--src/process.h88
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diff --git a/src/process.h b/src/process.h
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-/**
- *
- * cpulimit - a cpu limiter for Linux
- *
- * Copyright (C) 2005-2008, 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_H
-
-#define __PROCESS_H
-
-#include <sys/time.h>
-#include <unistd.h>
-#include <limits.h>
-
-//USER_HZ detection, from openssl code
-#ifndef HZ
-# if defined(_SC_CLK_TCK) \
- && (!defined(OPENSSL_SYS_VMS) || __CTRL_VER >= 70000000)
-# define HZ ((double)sysconf(_SC_CLK_TCK))
-# else
-# ifndef CLK_TCK
-# ifndef _BSD_CLK_TCK_ /* FreeBSD hack */
-# define HZ 100.0
-# else /* _BSD_CLK_TCK_ */
-# define HZ ((double)_BSD_CLK_TCK_)
-# endif
-# else /* CLK_TCK */
-# define HZ ((double)CLK_TCK)
-# endif
-# endif
-#endif
-
-// process descriptor
-struct process {
- //pid of the process
- pid_t pid;
- //pid of the process
- pid_t ppid;
- //start time
- int starttime;
- //is member of the family?
- int member; //TODO: delete this field
- //total number of jiffies used by the process at time last_sample
- int last_jiffies;
- //timestamp when last_jiffies and cpu_usage was calculated
- struct timeval last_sample;
- //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];
-
- //system-dependent members
-//TODO: delete these members for the sake of portability?
-#ifdef __linux__
- //preallocate buffers for performance
- //name of /proc/PID/stat file
- char stat_file[20];
- //read buffer for /proc filesystem
- char buffer[1024];
-#endif
-};
-
-int get_proc_info(struct process *p, pid_t pid);
-
-int process_init(struct process *proc, pid_t pid);
-
-int process_monitor(struct process *proc);
-
-int process_close(struct process *proc);
-
-#endif
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