/
debug.go
161 lines (134 loc) · 4.21 KB
/
debug.go
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package raft
import (
"fmt"
"log"
"os"
"runtime"
"strings"
)
//------------------------------------------------------------------------------
//
// Variables
//
//------------------------------------------------------------------------------
const (
Debug = 1
Trace = 2
)
var logLevel int = 0
var logger *log.Logger
func init() {
logger = log.New(os.Stdout, "[raft]", log.Lmicroseconds)
}
//------------------------------------------------------------------------------
//
// Functions
//
//------------------------------------------------------------------------------
func LogLevel() int {
return logLevel
}
func SetLogLevel(level int) {
logLevel = level
}
//--------------------------------------
// Warnings
//--------------------------------------
// Prints to the standard logger. Arguments are handled in the manner of
// fmt.Print.
func warn(args ...interface{}) {
pc, _, line, _ := runtime.Caller(1)
function := runtime.FuncForPC(pc)
funcname := function.Name()
msg := fmt.Sprintf(generateFmtStr(len(args)), args...)
log.Printf("[%s : %d] %s", funcname, line, msg)
}
// Prints to the standard logger. Arguments are handled in the manner of
// fmt.Printf.
func warnf(format string, args ...interface{}) {
pc, _, line, _ := runtime.Caller(1)
function := runtime.FuncForPC(pc)
funcname := function.Name()
msg := fmt.Sprintf(format, args...)
log.Printf("[%s : %d] %s", funcname, line, msg)
}
// Prints to the standard logger. Arguments are handled in the manner of
// fmt.Println.
func warnln(args ...interface{}) {
pc, _, line, _ := runtime.Caller(1)
function := runtime.FuncForPC(pc)
funcname := function.Name()
msg := fmt.Sprintf(generateFmtStr(len(args)), args...)
log.Printf("[%s : %d] %s", funcname, line, msg)
}
//--------------------------------------
// Basic debugging
//--------------------------------------
// Prints to the standard logger if debug mode is enabled. Arguments
// are handled in the manner of fmt.Print.
func debug(args ...interface{}) {
if logLevel >= Debug {
pc, _, line, _ := runtime.Caller(1)
function := runtime.FuncForPC(pc)
funcname := function.Name()
msg := fmt.Sprintf(generateFmtStr(len(args)), args...)
log.Printf("[%s : %d] %s", funcname, line, msg)
}
}
// Prints to the standard logger if debug mode is enabled. Arguments
// are handled in the manner of fmt.Printf.
func debugf(format string, args ...interface{}) {
if logLevel >= Debug {
pc, _, line, _ := runtime.Caller(1)
function := runtime.FuncForPC(pc)
funcname := function.Name()
msg := fmt.Sprintf(format, args...)
log.Printf("[%s : %d] %s", funcname, line, msg)
}
}
// Prints to the standard logger if debug mode is enabled. Arguments
// are handled in the manner of fmt.Println.
func debugln(args ...interface{}) {
if logLevel >= Debug {
pc, _, line, _ := runtime.Caller(1)
function := runtime.FuncForPC(pc)
funcname := function.Name()
msg := fmt.Sprintf(generateFmtStr(len(args)), args...)
log.Printf("[%s : %d] %s", funcname, line, msg)
}
}
//--------------------------------------
// Trace-level debugging
//--------------------------------------
// Prints to the standard logger if trace debugging is enabled. Arguments
// are handled in the manner of fmt.Print.
func trace(args ...interface{}) {
if logLevel >= Trace {
pc, _, line, _ := runtime.Caller(1)
function := runtime.FuncForPC(pc)
funcname := function.Name()
msg := fmt.Sprintf(generateFmtStr(len(args)), args...)
log.Printf("[%s : %d] %s", funcname, line, msg)
}
}
func tracef(format string, args ...interface{}) {
if logLevel >= Trace {
pc, _, line, _ := runtime.Caller(1)
function := runtime.FuncForPC(pc)
funcname := function.Name()
msg := fmt.Sprintf(format, args...)
log.Printf("[%s : %d] %s", funcname, line, msg)
}
}
func traceln(args ...interface{}) {
if logLevel >= Trace {
pc, _, line, _ := runtime.Caller(1)
function := runtime.FuncForPC(pc)
funcname := function.Name()
msg := fmt.Sprintf(generateFmtStr(len(args)), args...)
log.Printf("[%s : %d] %s", funcname, line, msg)
}
}
func generateFmtStr(n int) string {
return strings.Repeat("%v ", n)
}