Windows系统CPU和内存状态实时查询sigar
https://github.com/hyperic/sigarhttps://www.cnblogs.com/yoyotl/p/10809792.html
·
https://github.com/hyperic/sigar
https://www.cnblogs.com/yoyotl/p/10809792.html
http://blog.sina.com.cn/s/blog_62c89b450100qerm.html
https://blog.csdn.net/a123demi/article/details/50689265
https://blog.csdn.net/weixin_42639633/article/details/116556543
https://blog.csdn.net/weixin_39950057/article/details/114206515
sigar 函数
https://www.cnblogs.com/1521299249study/p/11174162.html
https://github.com/ilyaServ/server
git clone https://github.com/ilyaServ/server.git
using namespace std;
int main(int argc, char** argv)
{
sigar_t* sigar_cpu;
sigar_open(&sigar_cpu);
/*Get cpu list info,such as number...*/
sigar_cpu_list_t cpu_list;
int status = sigar_cpu_list_get(sigar_cpu, &cpu_list);
if (status != SIGAR_OK)
cout << "err" <<endl;
int CpuNumber = cpu_list.number;
/*Get cpu used rate,idle rate...*/
sigar_cpu_t cpu_old;
sigar_cpu_t cpu_current;
sigar_cpu_get(sigar_cpu, &cpu_old);
sigar_cpu_perc_t perc;
//sleep(1);
sigar_cpu_get(sigar_cpu, &cpu_current);
sigar_cpu_perc_calculate(&cpu_old, &cpu_current, &perc);
//cpu总使用率
double CpuTotalUsedRate = perc.combined;
double CpuIdleRate = perc.idle;
cpu_old = cpu_current;
//cout <
sigar_cpu_list_destroy(sigar_cpu, &cpu_list);
sigar_close(sigar_cpu);
return 0;
}
/* -*- Mode: C++; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
* Copyright 2011 Couchbase, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <sigar.h>
#ifdef _WIN32
#include <io.h>
#include <fcntl.h>
#endif
#define DEFAULT(value, def) ((value) == SIGAR_FIELD_NOTIMPL ? (def) : (value))
#define NUM_INTERESTING_PROCS 10
#define PROC_NAME_LEN 12
struct proc {
sigar_pid_t pid;
sigar_uint64_t start_time;
char name[PROC_NAME_LEN];
};
struct proc_stats {
char name[PROC_NAME_LEN];
uint32_t cpu_utilization;
uint64_t pid;
uint64_t mem_size;
uint64_t mem_resident;
uint64_t mem_share;
uint64_t minor_faults;
uint64_t major_faults;
uint64_t page_faults;
};
struct system_stats {
uint32_t version;
uint32_t struct_size;
uint64_t cpu_total_ms;
uint64_t cpu_idle_ms;
uint64_t swap_total;
uint64_t swap_used;
uint64_t swap_page_in;
uint64_t swap_page_out;
uint64_t mem_total;
uint64_t mem_used;
uint64_t mem_actual_used;
uint64_t mem_actual_free;
struct proc_stats interesting_procs[NUM_INTERESTING_PROCS];
};
static int find_interesting_procs(sigar_t *sigar, sigar_pid_t parent,
struct proc procs[NUM_INTERESTING_PROCS])
{
unsigned long i;
int found = 0;
sigar_proc_list_t proc_list;
sigar_proc_state_t proc_state;
sigar_proc_cpu_t proc_cpu;
sigar_pid_t pid;
sigar_proc_list_get(sigar, &proc_list);
for (i = 0; i < proc_list.number; ++i) {
pid = proc_list.data[i];
if (sigar_proc_state_get(sigar, pid, &proc_state) != SIGAR_OK) {
continue;
}
if (proc_state.ppid == parent &&
strcmp(proc_state.name, "moxi") != 0) {
procs[found].pid = pid;
strncpy(procs[found].name, proc_state.name, PROC_NAME_LEN);
if (sigar_proc_cpu_get(sigar, pid, &proc_cpu) != SIGAR_OK) {
continue;
}
procs[found].start_time = proc_cpu.start_time;
++found;
if (found == NUM_INTERESTING_PROCS) {
break;
}
}
}
sigar_proc_list_destroy(sigar, &proc_list);
return found;
}
static int populate_interesting_procs(sigar_t *sigar,
struct proc *procs, int procs_count,
struct system_stats *reply)
{
int i;
int stale = 0;
sigar_proc_mem_t proc_mem;
sigar_proc_cpu_t proc_cpu;
struct proc_stats *child;
for (i = 0; i < procs_count; ++i) {
if (sigar_proc_mem_get(sigar, procs[i].pid, &proc_mem) != SIGAR_OK ||
sigar_proc_cpu_get(sigar, procs[i].pid, &proc_cpu) != SIGAR_OK ||
procs[i].start_time != proc_cpu.start_time)
{
stale = 1;
continue;
}
child = &reply->interesting_procs[i];
child->pid = procs[i].pid;
strncpy(child->name, procs[i].name, PROC_NAME_LEN);
child->cpu_utilization = DEFAULT((uint32_t) (100 * proc_cpu.percent), 0);
child->mem_size = DEFAULT(proc_mem.size, 0);
child->mem_resident = DEFAULT(proc_mem.resident, 0);
child->mem_share = DEFAULT(proc_mem.share, 0);
child->minor_faults = DEFAULT(proc_mem.minor_faults, 0);
child->major_faults = DEFAULT(proc_mem.major_faults, 0);
child->page_faults = DEFAULT(proc_mem.page_faults, 0);
}
return stale;
}
int main(void)
{
sigar_t *sigar;
sigar_mem_t mem;
sigar_swap_t swap;
sigar_cpu_t cpu;
struct system_stats reply;
sigar_pid_t pid;
sigar_proc_state_t state;
sigar_pid_t child_vm_pid;
sigar_pid_t babysitter_pid;
int procs_stale = 1;
int procs_count;
struct proc procs[NUM_INTERESTING_PROCS];
sigar_open(&sigar);
pid = sigar_pid_get(sigar);
sigar_proc_state_get(sigar, pid, &state);
child_vm_pid = state.ppid;
sigar_proc_state_get(sigar, child_vm_pid, &state);
babysitter_pid = state.ppid;
#ifdef _WIN32
_setmode(1, _O_BINARY);
_setmode(0, _O_BINARY);
#endif
while (!feof(stdin)) {
int req;
int rv = fread(&req, sizeof(req), 1, stdin);
if (rv < 1) {
continue;
}
if (req != 0) {
break;
}
memset(&reply, 0, sizeof(reply));
reply.version = 2;
reply.struct_size = sizeof(reply);
sigar_mem_get(sigar, &mem);
sigar_swap_get(sigar, &swap);
sigar_cpu_get(sigar, &cpu);
reply.cpu_total_ms = cpu.total;
reply.cpu_idle_ms = cpu.idle + cpu.wait;
reply.swap_total = swap.total;
reply.swap_used = swap.used;
reply.swap_page_in = swap.page_in;
reply.swap_page_out = swap.page_out;
reply.mem_total = mem.total;
reply.mem_used = mem.used;
reply.mem_actual_used = mem.actual_used;
reply.mem_actual_free = mem.actual_free;
if (procs_stale) {
procs_count = find_interesting_procs(sigar, babysitter_pid, procs);
}
procs_stale = populate_interesting_procs(sigar, procs, procs_count, &reply);
if (procs_count != NUM_INTERESTING_PROCS) {
procs_stale = 1;
}
fwrite(&reply, sizeof(reply), 1, stdout);
fflush(stdout);
}
return 0;
}
/*
This source file is part of KBEngine
For the latest info, see http://www.kbengine.org/
Copyright (c) 2008-2016 KBEngine.
KBEngine is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
KBEngine 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with KBEngine. If not, see <http://www.gnu.org/licenses/>.
*/
#include "sys_info.h"
extern "C"
{
#include "sigar.h"
#include "sigar_format.h"
}
#ifndef CODE_INLINE
#include "sys_info.inl"
#endif
namespace KBEngine
{
KBE_SINGLETON_INIT(SystemInfo);
SystemInfo g_SystemInfo;
sigar_t *_g_sigarproclist = NULL;
sigar_proc_list_t _g_proclist;
sigar_t *_g_sigar_cpu = NULL;
sigar_cpu_t _g_old_cpu;
//-------------------------------------------------------------------------------------
bool hasPID(int pid, sigar_proc_list_t* proclist)
{
for (size_t i = 0; i < proclist->number; i++)
{
sigar_pid_t cpid = proclist->data[i];
if (cpid == pid)
{
sigar_proc_state_t procstate;
if (sigar_proc_state_get(_g_sigarproclist, pid, &procstate) != SIGAR_OK)
{
return false;
}
return true;
}
}
return false;
}
//-------------------------------------------------------------------------------------
SystemInfo::SystemInfo()
{
totalmem_ = 0;
// 不要在初始化中做这件事情，因为全局静态变量这里可能在main之前被调用一次
//_autocreate();
//getCPUPer();
//getProcessInfo();
}
//-------------------------------------------------------------------------------------
SystemInfo::~SystemInfo()
{
clear();
}
//-------------------------------------------------------------------------------------
void SystemInfo::clear()
{
if(_g_sigarproclist)
{
sigar_proc_list_destroy(_g_sigarproclist, &_g_proclist);
sigar_close(_g_sigarproclist);
_g_sigarproclist = NULL;
}
if(_g_sigar_cpu)
{
sigar_close(_g_sigar_cpu);
_g_sigar_cpu = NULL;
}
}
//-------------------------------------------------------------------------------------
bool SystemInfo::_autocreate()
{
if(_g_sigarproclist == NULL)
{
sigar_open(&_g_sigarproclist);
int status = sigar_proc_list_get(_g_sigarproclist, &_g_proclist);
if (status != SIGAR_OK)
{
DEBUG_MSG(fmt::format("SystemInfo::autocreate: error: {} ({}) sigar_proc_list_get\n",
status, sigar_strerror(_g_sigarproclist, status)));
sigar_close(_g_sigarproclist);
_g_sigarproclist = NULL;
return false;
}
}
return true;
}
//-------------------------------------------------------------------------------------
bool SystemInfo::hasProcess(uint32 pid)
{
if(!_autocreate())
return false;
return hasPID(pid, &_g_proclist);
}
//-------------------------------------------------------------------------------------
void SystemInfo::update()
{
if(!_autocreate())
return;
}
//-------------------------------------------------------------------------------------
uint32 SystemInfo::countCPU()
{
static uint32 count = 0;
if(count == 0)
{
int status = SIGAR_OK;
sigar_t *sigarcpulist;
sigar_cpu_list_t cpulist;
sigar_open(&sigarcpulist);
status = sigar_cpu_list_get(sigarcpulist, &cpulist);
if (status != SIGAR_OK)
{
DEBUG_MSG(fmt::format("error: {} ({}) cpu_list_get\n",
status, sigar_strerror(sigarcpulist, status)));
count = 1;
}
else
{
count = cpulist.number;
sigar_cpu_list_destroy(sigarcpulist, &cpulist);
}
sigar_close(sigarcpulist);
}
return count;
}
//-------------------------------------------------------------------------------------
SystemInfo::PROCESS_INFOS SystemInfo::getProcessInfo(uint32 pid)
{
PROCESS_INFOS infos;
infos.cpu = 0.f;
infos.memused = 0;
infos.error = false;
bool tryed = false;
if(!_autocreate())
goto _END;
_TRYGET:
if(!hasPID(pid, &_g_proclist))
{
//DEBUG_MSG(fmt::format("SystemInfo::getProcessInfo: error: not found pid({})\n", pid));
if(!tryed)
{
clear();
tryed = true;
infos.error = true;
//DEBUG_MSG(fmt::format("SystemInfo::getProcessInfo: try to find the pid({})\n", pid));
if(_autocreate())
goto _TRYGET;
}
goto _END;
}
else
{
if (tryed)
{
//DEBUG_MSG(fmt::format("SystemInfo::getProcessInfo: found pid({})\n", pid));
}
infos.error = false;
}
infos.cpu = getCPUPerByPID(pid);
infos.memused = getMemUsedByPID(pid);
_END:
return infos;
}
//-------------------------------------------------------------------------------------
float SystemInfo::getCPUPer()
{
sigar_cpu_t current;
if(_g_sigar_cpu == NULL)
sigar_open(&_g_sigar_cpu);
// sigar_cpu_get(_g_sigar_cpu, &_g_old_cpu);
sigar_cpu_perc_t perc;
// while(1)
{
sigar_cpu_get(_g_sigar_cpu, ¤t);
sigar_cpu_perc_calculate(&_g_old_cpu, ¤t, &perc);
// std::cout << "CPU " << perc.combined * 100 << "%\n";
_g_old_cpu = current;
// sleep(1000);
}
float ret = float(perc.combined) * 100.f;
//sigar_close(sigar_cpu);
// DEBUG_MSG(fmt::format("SystemInfo::getCPUPer(): {}\n", ret));
return ret;
}
//-------------------------------------------------------------------------------------
float SystemInfo::getCPUPerByPID(uint32 pid)
{
if(pid == 0)
{
pid = (uint32)getProcessPID();
}
float percent = 0.f;
bool tryed = false;
_TRYGET:
if(!hasPID(pid, &_g_proclist))
{
//DEBUG_MSG(fmt::format("SystemInfo::getCPUPerByPID: error: not found pid({})\n", pid));
if(!tryed)
{
clear();
tryed = true;
if(_autocreate())
goto _TRYGET;
}
return 0.f;
}
/*
int status = SIGAR_OK;
// for (size_t i = 0; i < proclist.number; i++)
{
sigar_proc_cpu_t cpu;
status = sigar_proc_cpu_get(_g_sigarproclist, pid, &cpu);
if (status != SIGAR_OK)
{
DEBUG_MSG(fmt::format("error: {} ({}) proc_cpu_get({})\n",
status, sigar_strerror(_g_sigarproclist, status), pid));
return 0.f;
}
}
*/
// sleep(1000);
// for (size_t i = 0; i < proclist.number; i++)
{
sigar_proc_cpu_t cpu;
int status = sigar_proc_cpu_get(_g_sigarproclist, pid, &cpu);
if (status == SIGAR_OK)
{
/*
sigar_proc_state_t procstate;
status = sigar_proc_state_get(sigarproclist, pid, &procstate);
if (status != SIGAR_OK)
{
DEBUG_MSG(fmt::format("error: {} ({}) proc_state({})\n",
status, sigar_strerror(sigarproclist, status), pid));
return 0.f;
}
*/
percent = float(cpu.percent) * 100.f;
#if KBE_PLATFORM == PLATFORM_WIN32
percent /= float(countCPU());
#endif
}
else
{
DEBUG_MSG(fmt::format("error: {} ({}) proc_cpu_get({})\n",
status, sigar_strerror(_g_sigarproclist, status), pid));
return 0.f;
}
}
return percent;
}
//-------------------------------------------------------------------------------------
SystemInfo::MEM_INFOS SystemInfo::getMemInfos()
{
MEM_INFOS infos;
sigar_t *sigar;
sigar_open(&sigar);
sigar_mem_t sigar_mem;
sigar_mem_get(sigar, &sigar_mem);
infos.total = sigar_mem.total;
infos.free = sigar_mem.actual_free;
infos.used = sigar_mem.actual_used;
sigar_close(sigar);
return infos;
}
//-------------------------------------------------------------------------------------
uint64 SystemInfo::totalmem()
{
if(totalmem_ == 0)
totalmem_ = getMemInfos().total;
return totalmem_;
}
//-------------------------------------------------------------------------------------
uint64 SystemInfo::getMemUsedByPID(uint32 pid)
{
if(pid == 0)
{
pid = (uint32)getProcessPID();
}
int status;
sigar_uint64_t total = 0;
bool tryed = false;
_TRYGET:
if(!hasPID(pid, &_g_proclist))
{
//DEBUG_MSG(fmt::format("SystemInfo::getMemUsedByPID: error: not found pid({})\n", pid));
if(!tryed)
{
clear();
tryed = true;
if(_autocreate())
goto _TRYGET;
}
return 0;
}
//for (i=0; i<(int)proclist.number; i++)
{
sigar_proc_state_t pstate;
sigar_proc_time_t ptime;
status = sigar_proc_state_get(_g_sigarproclist, pid, &pstate);
if (status != SIGAR_OK)
{
DEBUG_MSG(fmt::format("error: {} ({}) proc_state({})\n",
status, sigar_strerror(_g_sigarproclist, status), pid));
goto _END;
}
status = sigar_proc_time_get(_g_sigarproclist, pid, &ptime);
if (status != SIGAR_OK)
{
DEBUG_MSG(fmt::format("error: {} ({}) proc_time({})\n",
status, sigar_strerror(_g_sigarproclist, status), pid));
goto _END;
}
sigar_proc_mem_t proc_mem;
status = sigar_proc_mem_get(_g_sigarproclist, pid, &proc_mem);
if (status != SIGAR_OK)
{
DEBUG_MSG(fmt::format("error: {} ({}) sigar_proc_mem_get({})\n",
status, sigar_strerror(_g_sigarproclist, status), pid));
goto _END;
}
total = proc_mem.resident;
}
_END:
return total;
}
//-------------------------------------------------------------------------------------
}
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