33 lines
512 B
Go
33 lines
512 B
Go
package main
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import (
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"io/ioutil"
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"log"
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"sync"
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)
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type ConstErr string
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func (e ConstErr) Error() string { return string(e) }
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func DuplicateBytes(bs []byte) []byte {
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retBs := make([]byte, len(bs))
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copy(retBs, bs)
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return retBs
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}
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func IdCounter() func() int {
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var nextId int = 1
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var nextIdMtx sync.Mutex
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return func() int {
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nextIdMtx.Lock()
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defer nextIdMtx.Unlock()
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ret := nextId
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nextId++
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return ret
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}
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}
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func NullLogger() *log.Logger {
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return log.New(ioutil.Discard, "", log.Lshortfile)
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}
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