1 // 2 // Copyright (c) SAS Institute Inc. 3 // 4 // Licensed under the Apache License, Version 2.0 (the "License"); 5 // you may not use this file except in compliance with the License. 6 // You may obtain a copy of the License at 7 // 8 // http://www.apache.org/licenses/LICENSE-2.0 9 // 10 // Unless required by applicable law or agreed to in writing, software 11 // distributed under the License is distributed on an "AS IS" BASIS, 12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 // See the License for the specific language governing permissions and 14 // limitations under the License. 15 // 16 17 package dlog 18 19 import ( 20 "fmt" 21 "log" 22 "sync/atomic" 23 24 "github.com/kr/pretty" 25 ) 26 27 var debugLevel uint32 28 29 func SetLevel(level uint32) { 30 atomic.StoreUint32(&debugLevel, level) 31 } 32 33 func Printf(level uint32, format string, args ...interface{}) { 34 if debugLevel >= level { 35 log.Printf("[debug.%d] %s", level, fmt.Sprintf(format, args...)) 36 } 37 } 38 39 func PrettyPrint(level uint32, v interface{}) { 40 Printf(level, "%# v", pretty.Formatter(v)) 41 } 42