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https://github.com/tuxbox-fork-migrations/recycled-ni-neutrino.git
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567f875f06
Origin commit data
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Branch: ni/coolstream
Commit: 6fdaa869d7
Author: [CST] Bas <bas@coolstreamtech.com>
Date: 2015-02-22 (Sun, 22 Feb 2015)
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No further description and justification available within origin commit message!
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This commit was generated by Migit
119 lines
3.0 KiB
C++
119 lines
3.0 KiB
C++
/*
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Neutrino-HD
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License: GPL
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(C) 2013 martii
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This program is free software; you can redistribute it and/or modify
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it 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, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License 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 this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __USE_FILE_OFFSET64
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#define __USE_FILE_OFFSET64 1
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#endif
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#include <string>
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#include <iostream>
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#include <fstream>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/vfs.h>
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#include <fcntl.h>
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#include <time.h>
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#include <stdarg.h>
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#include <global.h>
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#include <system/set_threadname.h>
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#include <system/sysload.h>
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static cSysLoad *instance = NULL;
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cSysLoad *cSysLoad::getInstance(void)
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{
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if (!instance)
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instance = new cSysLoad;
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return instance;
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}
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void *cSysLoad::Run(void *arg)
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{
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set_threadname("sysload");
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class cSysLoad *caller = (class cSysLoad *)arg;
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unsigned long stat_idle = 0, stat_total = 0;
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while (caller->running) {
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std::ifstream in("/proc/stat");
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if (in.is_open()) {
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std::string line;
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while (getline(in, line)) {
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unsigned long _stat_user, _stat_nice, _stat_system, _stat_idle;
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if (4 == sscanf(line.c_str(), "cpu %lu %lu %lu %lu", &_stat_user, &_stat_nice, &_stat_system, &_stat_idle)) {
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unsigned long _stat_total = _stat_user + _stat_nice + _stat_system + _stat_idle;
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if (stat_total) {
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unsigned long div = _stat_total - stat_total;
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if (!div) // prevent division by zero if previous stat_total is equal to new.
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break;
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caller->data_last = (int)(1000 - 1000 * (_stat_idle - stat_idle) / div);
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if (caller->data_avail < caller->data_size) {
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caller->data[caller->data_avail++] = caller->data_last;
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} else {
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memmove(caller->data, caller->data + 1, (caller->data_size - 1) * sizeof(int));
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caller->data[caller->data_size - 1] = caller->data_last;
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}
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}
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stat_idle = _stat_idle;
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stat_total = _stat_total;
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break;
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}
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}
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in.close();
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}
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timespec ts;
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clock_gettime(CLOCK_REALTIME, &ts);
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ts.tv_sec += caller->period;
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sem_timedwait(&caller->sem, &ts);
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}
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pthread_exit(NULL);
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}
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cSysLoad::cSysLoad(void)
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{
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data_last = -1;
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data_avail = 0;
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period = 5;
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data_size = 1800/period;
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data = new int[data_size];
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for (unsigned int i = 0; i < data_size; i++)
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data[i] = -1;
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running = true;
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sem_init(&sem, 0, 0);
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if (pthread_create(&thr, NULL, Run, this))
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running = false;
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}
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cSysLoad::~cSysLoad(void)
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{
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if (running) {
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running = false;
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sem_post(&sem);
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pthread_join(thr, NULL);
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}
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sem_destroy(&sem);
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delete[] data;
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}
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