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crate/synchelper/io_writer.go

26 lines
390 B
Go

2 years ago
package synchelper
import (
"io"
"sync"
)
// NewSyncWriter 返回写互斥的 writer
func NewSyncWriter(writer io.Writer) io.Writer {
return &syncWriter{
writer: writer,
lock: sync.Mutex{},
}
}
type syncWriter struct {
writer io.Writer
lock sync.Mutex
}
func (w *syncWriter) Write(p []byte) (int, error) {
2 years ago
w.lock.Lock()
defer w.lock.Unlock()
return w.writer.Write(p)
}