recycleBuffer

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Recycler Buffer for GoLang

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# recycleBuffer

## What is this?
`recycleBuffer` is for effective buffer usage in golang and thread-safe.
It is wrote with very short and simple code.

## Installation
Use following command in your terminal.
`go get github.com/DiyLecko/recycleBuffer`

## How to use?
1. Import `import "github.com/DiyLecko/recycleBuffer"`
2. Init with `var rb *recycleBuffer.RecycleBuffer = recycleBuffer.Init(8192) // 1th param is bufferSize.`
3. Use `buf := <-rb.Get` to get buffer
4. Use `rb.Give<- buf` to free buffer.

here is an example.
```golang
// recycleBuffer_test.go
package recycleBuffer

import (
	"math/rand"
	"runtime"
	"testing"
	"time"
)

func init() {
	runtime.GOMAXPROCS(runtime.NumCPU())
}

func TestRecycleBuffer(t *testing.T) {
	rb := Init(8192)

buf := <-rb.Get
	rb.Give <- buf
}

var doneTest2 chan bool = make(chan bool)
var endCountTest2 int = 100
var testCountTest2 int = 10
var countText2 int = 0

func testRecycleBuffer2(rb *RecycleBuffer) {
	for i := 0; i < testCountTest2; i++ {
		time.Sleep(time.Millisecond * time.Duration(rand.Int63()%500))
		buf := <-rb.Get
		go func() {
			time.Sleep(time.Millisecond * time.Duration(rand.Int63()%1000))
			rb.Give <- buf
			countText2++

if countText2 == endCountTest2*testCountTest2 {
				doneTest2 <- true
			}
		}()
	}
}
func TestRecycleBuffer2(t *testing.T) {
	rb := Init(8192)

for i := 0; i < endCountTest2; i++ {
		go testRecycleBuffer2(rb)
	}

<-doneTest2

t.Logf("buffer count : %d\n", rb.GetBufferCount())
}
```

result is
```
=== RUN   TestRecycleBuffer
--- PASS: TestRecycleBuffer (0.00s)
=== RUN   TestRecycleBuffer2
--- PASS: TestRecycleBuffer2 (4.58s)
	recycleBuffer_test.go:50: buffer count : 206
PASS
ok  	recycleBuffer	4.588s
```

In above example, buffer is made 1000 times. But in result, buffer is made only 206 times.

recycleBuffer

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