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// processinfo.cpp
/* Copyright 2009 10gen 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 "mongo/pch.h"
#include "mongo/base/init.h"
#include "mongo/util/processinfo.h"
#include <iostream>
#include <fstream>
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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