github.com/looshlee/beatles@v0.0.0-20220727174639-742810ab631c/pkg/flowdebug/flowdebug.go (about)

     1  // Copyright 2018 Authors of Cilium
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package flowdebug
    16  
    17  import (
    18  	"github.com/sirupsen/logrus"
    19  )
    20  
    21  var perFlowDebug = false
    22  
    23  // Enable enables per-flow debugging
    24  func Enable() {
    25  	perFlowDebug = true
    26  }
    27  
    28  // Enabled reports the status of per-flow debugging
    29  func Enabled() bool {
    30  	return perFlowDebug
    31  }
    32  
    33  // Log must be used to log any debug messages emitted per request/message/connection
    34  func Log(l *logrus.Entry, args ...interface{}) {
    35  	if perFlowDebug {
    36  		l.Debug(args...)
    37  	}
    38  }
    39  
    40  // Logf must be used to log any debug messages emitted per request/message/connection
    41  func Logf(l *logrus.Entry, format string, args ...interface{}) {
    42  	if perFlowDebug {
    43  		l.Debugf(format, args...)
    44  	}
    45  }