README.md

#Slice buffer

Slice buffer saves allocations and ops by reusing the same underlying slice.

Installation

go get -u "github.com/erezlevip/slice-buffer"

Quick Start

Create a slice buffer and pass initial size and a multiplier for the resize.

• the initial size will affect the resizing of the buffer but it can be pretty big because it is reused.

sb := NewSliceBuffer(50000, 2)

Add items using the Append method

for i := 0; i < 100000000; i++ {
	sb.Append(i)
}

To get the slice use the Slice method:

for _, item := range sb.Slice() {
	fmt.Println(item.(string))
}

To reset the slice buffer use the Reset:

sb.Reset()

To get the length of the slice use the Length method:

sb.Length()

If you want to use Sync.Pool with it:

var pool *sync.Pool
func init() {
	pool = &sync.Pool{
		New: func() interface{} {
			return NewSliceBuffer(50000, 2)
		},
	}
}

func getSlice() *SliceBuffer {
	return pool.Get().(*SliceBuffer)
}
func freeSlize(sb *SliceBuffer) {
	sb.Reset() //reset before putting it back
	pool.Put(sb)
}