mirror of https://github.com/Icinga/icinga2.git
254 lines
7.7 KiB
C++
254 lines
7.7 KiB
C++
/******************************************************************************
|
|
* Icinga 2 *
|
|
* Copyright (C) 2012-2016 Icinga Development Team (https://www.icinga.org/) *
|
|
* *
|
|
* 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 St, Fifth Floor, Boston, MA 02110-1301, USA. *
|
|
******************************************************************************/
|
|
|
|
#include <Pdh.h>
|
|
#include <Shlwapi.h>
|
|
#include <pdhmsg.h>
|
|
#include <iostream>
|
|
|
|
#include "check_load.h"
|
|
|
|
#include "boost/algorithm/string/split.hpp"
|
|
#include "boost/algorithm/string/classification.hpp"
|
|
|
|
#define VERSION 1.0
|
|
|
|
namespace po = boost::program_options;
|
|
|
|
static BOOL debug = FALSE;
|
|
|
|
|
|
INT wmain(INT argc, WCHAR **argv)
|
|
{
|
|
printInfoStruct printInfo{ };
|
|
po::variables_map vm;
|
|
|
|
INT ret = parseArguments(argc, argv, vm, printInfo);
|
|
if (ret != -1)
|
|
return ret;
|
|
|
|
ret = check_load(printInfo);
|
|
if (ret != -1)
|
|
return ret;
|
|
|
|
return printOutput(printInfo);
|
|
}
|
|
|
|
INT parseArguments(INT ac, WCHAR **av, po::variables_map& vm, printInfoStruct& printInfo) {
|
|
wchar_t namePath[MAX_PATH];
|
|
GetModuleFileName(NULL, namePath, MAX_PATH);
|
|
wchar_t *progName = PathFindFileName(namePath);
|
|
|
|
po::options_description desc;
|
|
|
|
desc.add_options()
|
|
("help,h", "Print usage message and exit")
|
|
("version,V", "Print version and exit")
|
|
("debug,d", "Verbose/Debug output")
|
|
("warning,w", po::wvalue<std::wstring>(), "Warning value (in percent)")
|
|
("critical,c", po::wvalue<std::wstring>(), "Critical value (in percent)")
|
|
;
|
|
|
|
po::basic_command_line_parser<wchar_t> parser(ac, av);
|
|
|
|
try {
|
|
po::store(
|
|
parser
|
|
.options(desc)
|
|
.style(
|
|
po::command_line_style::unix_style |
|
|
po::command_line_style::allow_long_disguise)
|
|
.run(),
|
|
vm);
|
|
vm.notify();
|
|
} catch (std::exception& e) {
|
|
std::cout << e.what() << '\n' << desc << '\n';
|
|
return 3;
|
|
}
|
|
|
|
if (vm.count("help")) {
|
|
std::wcout << progName << " Help\n\tVersion: " << VERSION << '\n';
|
|
wprintf(
|
|
L"%s is a simple program to check a machines CPU load.\n"
|
|
L"You can use the following options to define its behaviour:\n\n", progName);
|
|
std::cout << desc;
|
|
wprintf(
|
|
L"\nIt will then output a string looking something like this:\n\n"
|
|
L"\tLOAD WARNING 67%% | load=67%%;50%%;90%%;0;100\n\n"
|
|
L"\"LOAD\" being the type of the check, \"WARNING\" the returned status\n"
|
|
L"and \"67%%\" is the returned value.\n"
|
|
L"The performance data is found behind the \"|\", in order:\n"
|
|
L"returned value, warning threshold, critical threshold, minimal value and,\n"
|
|
L"if applicable, the maximal value.\n\n"
|
|
L"%s' exit codes denote the following:\n"
|
|
L" 0\tOK,\n\tNo Thresholds were broken or the programs check part was not executed\n"
|
|
L" 1\tWARNING,\n\tThe warning, but not the critical threshold was broken\n"
|
|
L" 2\tCRITICAL,\n\tThe critical threshold was broken\n"
|
|
L" 3\tUNKNOWN, \n\tThe program experienced an internal or input error\n\n"
|
|
L"Threshold syntax:\n\n"
|
|
L"-w THRESHOLD\n"
|
|
L"warn if threshold is broken, which means VALUE > THRESHOLD\n"
|
|
L"(unless stated differently)\n\n"
|
|
L"-w !THRESHOLD\n"
|
|
L"inverts threshold check, VALUE < THRESHOLD (analogous to above)\n\n"
|
|
L"-w [THR1-THR2]\n"
|
|
L"warn is VALUE is inside the range spanned by THR1 and THR2\n\n"
|
|
L"-w ![THR1-THR2]\n"
|
|
L"warn if VALUE is outside the range spanned by THR1 and THR2\n\n"
|
|
L"-w THRESHOLD%%\n"
|
|
L"if the plugin accepts percentage based thresholds those will be used.\n"
|
|
L"Does nothing if the plugin does not accept percentages, or only uses\n"
|
|
L"percentage thresholds. Ranges can be used with \"%%\", but both range values need\n"
|
|
L"to end with a percentage sign.\n\n"
|
|
L"All of these options work with the critical threshold \"-c\" too."
|
|
, progName);
|
|
std::cout << '\n';
|
|
return 0;
|
|
}
|
|
|
|
if (vm.count("version"))
|
|
std::cout << "Version: " << VERSION << '\n';
|
|
|
|
if (vm.count("warning")) {
|
|
try {
|
|
std::wstring wthreshold = vm["warning"].as<std::wstring>();
|
|
std::vector<std::wstring> tokens;
|
|
boost::algorithm::split(tokens, wthreshold, boost::algorithm::is_any_of(","));
|
|
printInfo.warn = threshold(tokens[0]);
|
|
} catch (std::invalid_argument& e) {
|
|
std::cout << e.what() << '\n';
|
|
return 3;
|
|
}
|
|
}
|
|
if (vm.count("critical")) {
|
|
try {
|
|
std::wstring cthreshold = vm["critical"].as<std::wstring>();
|
|
std::vector<std::wstring> tokens;
|
|
boost::algorithm::split(tokens, cthreshold, boost::algorithm::is_any_of(","));
|
|
printInfo.crit = threshold(tokens[0]);
|
|
} catch (std::invalid_argument& e) {
|
|
std::cout << e.what() << '\n';
|
|
return 3;
|
|
}
|
|
}
|
|
|
|
if (vm.count("debug"))
|
|
debug = TRUE;
|
|
|
|
return -1;
|
|
}
|
|
|
|
INT printOutput(printInfoStruct& printInfo)
|
|
{
|
|
if (debug)
|
|
std::wcout << L"Constructing output string" << '\n';
|
|
|
|
state state = OK;
|
|
|
|
if (printInfo.warn.rend(printInfo.load))
|
|
state = WARNING;
|
|
|
|
if (printInfo.crit.rend(printInfo.load))
|
|
state = CRITICAL;
|
|
|
|
std::wstringstream perf;
|
|
perf << L"% | load=" << printInfo.load << L"%;" << printInfo.warn.pString() << L";"
|
|
<< printInfo.crit.pString() << L";0;100" << '\n';
|
|
|
|
switch (state) {
|
|
case OK:
|
|
std::wcout << L"LOAD OK " << printInfo.load << perf.str();
|
|
break;
|
|
case WARNING:
|
|
std::wcout << L"LOAD WARNING " << printInfo.load << perf.str();
|
|
break;
|
|
case CRITICAL:
|
|
std::wcout << L"LOAD CRITICAL " << printInfo.load << perf.str();
|
|
break;
|
|
}
|
|
|
|
return state;
|
|
}
|
|
|
|
INT check_load(printInfoStruct& printInfo)
|
|
{
|
|
PDH_HQUERY phQuery = NULL;
|
|
PDH_HCOUNTER phCounter;
|
|
DWORD dwBufferSize = 0;
|
|
DWORD CounterType;
|
|
PDH_FMT_COUNTERVALUE DisplayValue;
|
|
PDH_STATUS err;
|
|
|
|
LPCWSTR path = L"\\Processor(_Total)\\% Idle Time";
|
|
|
|
if (debug)
|
|
std::wcout << L"Creating query and adding counter" << '\n';
|
|
|
|
err = PdhOpenQuery(NULL, NULL, &phQuery);
|
|
if (!SUCCEEDED(err))
|
|
goto die;
|
|
|
|
err = PdhAddEnglishCounter(phQuery, path, NULL, &phCounter);
|
|
if (!SUCCEEDED(err))
|
|
goto die;
|
|
|
|
if (debug)
|
|
std::wcout << L"Collecting first batch of query data" << '\n';
|
|
|
|
err = PdhCollectQueryData(phQuery);
|
|
if (!SUCCEEDED(err))
|
|
goto die;
|
|
|
|
if (debug)
|
|
std::wcout << L"Sleep for one second" << '\n';
|
|
|
|
Sleep(1000);
|
|
|
|
if (debug)
|
|
std::wcout << L"Collecting second batch of query data" << '\n';
|
|
|
|
err = PdhCollectQueryData(phQuery);
|
|
if (!SUCCEEDED(err))
|
|
goto die;
|
|
|
|
if (debug)
|
|
std::wcout << L"Creating formatted counter array" << '\n';
|
|
|
|
err = PdhGetFormattedCounterValue(phCounter, PDH_FMT_DOUBLE, &CounterType, &DisplayValue);
|
|
if (SUCCEEDED(err)) {
|
|
if (DisplayValue.CStatus == PDH_CSTATUS_VALID_DATA) {
|
|
if (debug)
|
|
std::wcout << L"Recieved Value of " << DisplayValue.doubleValue << L" (idle)" << '\n';
|
|
printInfo.load = 100.0 - DisplayValue.doubleValue;
|
|
}
|
|
|
|
if (debug)
|
|
std::wcout << L"Finished collection. Cleaning up and returning" << '\n';
|
|
|
|
PdhCloseQuery(phQuery);
|
|
return -1;
|
|
}
|
|
|
|
die:
|
|
die();
|
|
if (phQuery)
|
|
PdhCloseQuery(phQuery);
|
|
return 3;
|
|
}
|