netdata/netdata

// SPDX-License-Identifier: GPL-3.0-or-later

package safewriter

import (
    "io"
    "os"
    "sync"
)

var Stdout = New(os.Stdout)

func New(w io.Writer) io.Writer {
    return &writer{
        mx: &sync.Mutex{},
        w:  w,
    }
}

type writer struct {
    mx *sync.Mutex
    w  io.Writer
}

func (w *writer) Write(p []byte) (n int, err error) {
    w.mx.Lock()
    n, err = w.w.Write(p)
    w.mx.Unlock()
    return n, err
}