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49 lines
1.4 KiB
Markdown
49 lines
1.4 KiB
Markdown
# ABool :bulb:
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[](https://goreportcard.com/report/github.com/tevino/abool)
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[](https://godoc.org/github.com/tevino/abool)
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Atomic Boolean library for Golang, optimized for performance yet simple to use.
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Use this for cleaner code.
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## Usage
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```go
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import "github.com/tevino/abool"
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cond := abool.New() // default to false
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cond.Set() // Set to true
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cond.IsSet() // Returns true
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cond.UnSet() // Set to false
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cond.SetTo(true) // Set to whatever you want
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cond.SetToIf(false, true) // Set to true if it is false, returns false(not set)
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// embedding
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type Foo struct {
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cond *abool.AtomicBool // always use pointer to avoid copy
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}
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```
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## Benchmark:
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- Golang 1.6.2
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- OS X 10.11.4
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```shell
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# Read
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BenchmarkMutexRead-4 100000000 21.0 ns/op
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BenchmarkAtomicValueRead-4 200000000 6.30 ns/op
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BenchmarkAtomicBoolRead-4 300000000 4.21 ns/op # <--- This package
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# Write
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BenchmarkMutexWrite-4 100000000 21.6 ns/op
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BenchmarkAtomicValueWrite-4 30000000 43.4 ns/op
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BenchmarkAtomicBoolWrite-4 200000000 9.87 ns/op # <--- This package
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# CAS
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BenchmarkMutexCAS-4 30000000 44.9 ns/op
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BenchmarkAtomicBoolCAS-4 100000000 11.7 ns/op # <--- This package
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```
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