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util.go
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/
util.go
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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"
"time"
)
// 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)
}
}
// SliceToSet converts a slice to a map whose keys are the slice members, that is, a set.
// Note duplicates will be lost, as is the nature of a set.
func SliceToSet[T comparable](sl []T) map[T]struct{} {
st := map[T]struct{}{}
for _, val := range sl {
st[val] = struct{}{}
}
return st
}
// ConvertTimeFormat converts the input time to the supplied format.
func ConvertTimeFormat(t time.Time, format string) (*time.Time, error) {
formattedTime, err := time.Parse(format, t.Format(format))
return &formattedTime, err
}