milvus/internal/util/trace/stack_trace.go

53 lines
1.4 KiB
Go
Raw Normal View History

// Licensed to the LF AI & Data foundation under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package trace
import (
"fmt"
"runtime"
)
const (
numFuncsInStack = 10
frameNumToSkip = 2
)
// StackTraceMsg returns the stack information, which numFuncs means how many functions do you want to show in the stack
// information.
func StackTraceMsg(numFuncs uint) string {
pc := make([]uintptr, numFuncs)
n := runtime.Callers(frameNumToSkip, pc)
frames := runtime.CallersFrames(pc[:n])
ret := ""
for {
frame, more := frames.Next()
ret += fmt.Sprintf("%s:%d %s\n", frame.File, frame.Line, frame.Function)
if !more {
break
}
}
return ret
}
// StackTrace returns the stack trace information.
func StackTrace() string {
return StackTraceMsg(numFuncsInStack)
}