| package util |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) 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. |
| */ |
| |
| import ( |
| "runtime" |
| ) |
| |
| // Stacktrace is a helper function which returns the current stacktrace. |
| // It wraps runtime.Stack, which requires a sufficiently long buffer. |
| func Stacktrace() []byte { |
| initialBufSize := 1024 |
| buf := make([]byte, initialBufSize) |
| for { |
| n := runtime.Stack(buf, true) |
| if n < len(buf) { |
| return buf[:n] |
| } |
| buf = make([]byte, len(buf)*2) |
| } |
| } |