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67 lines
1.0 KiB
Go
67 lines
1.0 KiB
Go
package dev
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import (
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"strconv"
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"sync"
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"go.uber.org/atomic"
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"go.uber.org/zap"
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)
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type (
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// DebugMutex for verbose locking & unlocking
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// use:
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// dev.DebugMutex{Logger: logger.Default()}
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DebugMutex struct {
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sync.RWMutex
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c atomic.Int64
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Logger *zap.Logger
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}
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)
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func (m *DebugMutex) log(r, u, done bool) {
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msg := "#" + strconv.FormatInt(m.c.Load(), 10)
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if u {
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msg = "UNLOCK " + msg
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} else {
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msg = " LOCK " + msg
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}
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if r {
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msg = "R" + msg
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} else {
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msg = " " + msg
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}
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if done {
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msg += " DONE"
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}
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m.Logger.WithOptions(zap.AddCallerSkip(2)).Debug(msg)
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}
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func (m *DebugMutex) RLock() {
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m.c.Inc()
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m.log(true, false, false)
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m.RWMutex.RLock()
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m.log(true, false, true)
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}
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func (m *DebugMutex) RUnlock() {
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m.log(true, true, false)
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m.RWMutex.RUnlock()
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m.log(true, true, true)
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}
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func (m *DebugMutex) Lock() {
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m.c.Inc()
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m.log(true, false, false)
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m.RWMutex.Lock()
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m.log(true, false, true)
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}
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func (m *DebugMutex) Unlock() {
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m.log(true, true, false)
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m.RWMutex.Unlock()
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m.log(true, true, true)
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}
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