Zabbix

/*

** Copyright (C) 2001-2025 Zabbix SIA

**

** This program is free software: you can redistribute it and/or modify it under the terms of

** the GNU Affero General Public License as published by the Free Software Foundation, version 3.

**

** 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 <https://www.gnu.org/licenses/>.

**/

​

package pidfile

​

import (

    "os"

    "strconv"

)

​

type File struct {

    file *os.File

}

​

func New(path string) (pidFile *File, err error) {

    var pf File

    pid := os.Getpid()

    if pf.file, err = createPidFile(pid, path); err != nil || pf.file == nil {

        return

    }

    if err = pf.file.Truncate(0); err != nil {

        return

    }

    if _, err = pf.file.WriteString(strconv.Itoa(pid)); err != nil {

        return

    }

    if err = pf.file.Sync(); err != nil {

        return

    }

​

    return &pf, nil

}

​

func (f *File) Delete() {

    if nil == f || nil == f.file {

        return

    }

    path := f.file.Name()

    f.file.Close()

    os.Remove(path)

}