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// processinfo.cpp
/* Copyright 2009 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects
* for all of the code used other than as permitted herein. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you do not
* wish to do so, delete this exception statement from your version. If you
* delete this exception statement from all source files in the program,
* then also delete it in the license file.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kControl
#include "mongo/platform/basic.h"
#include "mongo/base/init.h"
#include "mongo/util/processinfo.h"
#include <iostream>
#include <fstream>
#include "mongo/util/log.h"
using namespace std;
namespace mongo {
class PidFileWiper {
public:
~PidFileWiper() {
if (path.empty()) {
return;
}
ofstream out( path.c_str() , ios_base::out );
out.close();
}
bool write( const string& p ) {
path = p;
ofstream out( path.c_str() , ios_base::out );
out << ProcessId::getCurrent() << endl;
return out.good();
}
string path;
} pidFileWiper;
bool writePidFile( const string& path ) {
bool e = pidFileWiper.write( path );
if (!e) {
log() << "ERROR: Cannot write pid file to " << path
<< ": "<< strerror(errno);
}
return e;
}
ProcessInfo::SystemInfo* ProcessInfo::systemInfo = NULL;
void ProcessInfo::initializeSystemInfo() {
if (systemInfo == NULL) {
systemInfo = new SystemInfo();
}
}
MONGO_INITIALIZER(SystemInfo)(InitializerContext* context) {
ProcessInfo::initializeSystemInfo();
return Status::OK();
}
}
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