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29 lines
475 B
Go
29 lines
475 B
Go
package syncx
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import (
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"runtime"
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"sync/atomic"
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)
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// A SpinLock is used as a lock a fast execution.
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type SpinLock struct {
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lock uint32
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}
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// Lock locks the SpinLock.
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func (sl *SpinLock) Lock() {
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for !sl.TryLock() {
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runtime.Gosched()
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}
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}
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// TryLock tries to lock the SpinLock.
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func (sl *SpinLock) TryLock() bool {
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return atomic.CompareAndSwapUint32(&sl.lock, 0, 1)
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}
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// Unlock unlocks the SpinLock.
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func (sl *SpinLock) Unlock() {
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atomic.StoreUint32(&sl.lock, 0)
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}
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