pid_file.h

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// Copyright (C) 2015-2024 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
#ifndef PID_FILE_H
#define PID_FILE_H
 
#include <exceptions/exceptions.h>
#include <boost/shared_ptr.hpp>
#include <fstream>
#include <ostream>
#include <string>
 
namespace isc {
namespace util {

class PIDFileError : public Exception {
public:
    PIDFileError(const char* file, size_t line, const char* what) :
        isc::Exception(file, line, what) { }
};

class PIDCantReadPID : public Exception {
public:
    PIDCantReadPID(const char* file, size_t line, const char* what) :
        isc::Exception(file, line, what) { }
};

class PIDFile {
public:
    PIDFile(const std::string& filename);

    ~PIDFile();

    int check() const;

    void write(int) const;

    void write() const;

    void deleteFile() const;

    std::string getFilename() const {
        return (filename_);
    }
 
private:
    std::string filename_;
};

typedef boost::shared_ptr<PIDFile> PIDFilePtr;
 
} // namespace isc::util
} // namespace isc
 
#endif // PID_FILE_H