mutex

Documentation

Overview

Package mutex provides a wrapper interface to sync.Mutex that, when built with both "diag" and "mutex" tags (e.g. go build -tags "diag mutex"), will log each Lock() and Unlock() to the diagnostic file or syslog.

Usage ("./foo.go"):

package main

import (
	"github.com/apptimistco/asn/debug"
	"github.com/apptimistco/asn/debug/mutex"
)

var foo struct {
	mutex.Mutex
	...
}

func main() {
	foo.Mutex.Set("foo")
	if false {
		debug.Diag.Redirect("foo.diag")
	}
	foo.Lock()		// line: X
	defer foo.Unlock()
	...
	return			// line: Y
}

build and run,

$ go build -tags "diag mutex" .
$ ./foo

would syslog this at level DEBUG,

foo.go:X: foo lock
foo.go:Y: foo unlock

with the Redirect(), this is printed to the named file instead of syslog.

Index

• type Mutex

Types

type Mutex

type Mutex struct {
	sync.Mutex
	debug.Debug
}