syncthing/vendor/github.com/zillode/notify/debug.go
2017-12-10 19:42:17 +01:00

54 lines
1.3 KiB
Go

// Copyright (c) 2014-2015 The Notify Authors. All rights reserved.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
package notify
import (
"log"
"os"
"runtime"
"strings"
)
var dbgprint func(...interface{})
var dbgprintf func(string, ...interface{})
var dbgcallstack func(max int) []string
func init() {
if _, ok := os.LookupEnv("NOTIFY_DEBUG"); ok || debugTag {
log.SetOutput(os.Stdout)
log.SetFlags(log.Ldate | log.Ltime | log.Lmicroseconds)
dbgprint = func(v ...interface{}) {
v = append([]interface{}{"[D] "}, v...)
log.Println(v...)
}
dbgprintf = func(format string, v ...interface{}) {
format = "[D] " + format
log.Printf(format, v...)
}
dbgcallstack = func(max int) []string {
pc, stack := make([]uintptr, max), make([]string, 0, max)
runtime.Callers(2, pc)
for _, pc := range pc {
if f := runtime.FuncForPC(pc); f != nil {
fname := f.Name()
idx := strings.LastIndex(fname, string(os.PathSeparator))
if idx != -1 {
stack = append(stack, fname[idx+1:])
} else {
stack = append(stack, fname)
}
}
}
return stack
}
return
}
dbgprint = func(v ...interface{}) {}
dbgprintf = func(format string, v ...interface{}) {}
dbgcallstack = func(max int) []string { return nil }
}