pid_file.h

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// Copyright (C) 2015 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