Version 3.0.0-beta cleaned

utils/bytes.go

@@ -0,0 +1,58 @@
+package utils
+
+import (
+	"bytes"
+	"encoding/gob"
+)
+
+// SerializeBytes serializa bytes using gob encoder and returns them
+func SerializeBytes(m interface{}) ([]byte, error) {
+	buf := new(bytes.Buffer)
+	enc := gob.NewEncoder(buf)
+	err := enc.Encode(m)
+	if err == nil {
+		return buf.Bytes(), nil
+	}
+	return nil, err
+}
+
+// DeserializeBytes converts the bytes to an object using gob decoder
+func DeserializeBytes(b []byte, m interface{}) error {
+	dec := gob.NewDecoder(bytes.NewBuffer(b))
+	return dec.Decode(m) //no reference here otherwise doesn't work because of go remote object
+}
+
+// BufferPool implements a pool of bytes.Buffers in the form of a bounded channel.
+// Pulled from the github.com/oxtoacart/bpool package (Apache licensed).
+type BufferPool struct {
+	c chan *bytes.Buffer
+}
+
+// NewBufferPool creates a new BufferPool bounded to the given size.
+func NewBufferPool(size int) (bp *BufferPool) {
+	return &BufferPool{
+		c: make(chan *bytes.Buffer, size),
+	}
+}
+
+// Get gets a Buffer from the BufferPool, or creates a new one if none are
+// available in the pool.
+func (bp *BufferPool) Get() (b *bytes.Buffer) {
+	select {
+	case b = <-bp.c:
+	// reuse existing buffer
+	default:
+		// create new buffer
+		b = bytes.NewBuffer([]byte{})
+	}
+	return
+}
+
+// Put returns the given Buffer to the BufferPool.
+func (bp *BufferPool) Put(b *bytes.Buffer) {
+	b.Reset()
+	select {
+	case bp.c <- b:
+	default: // Discard the buffer if the pool is full.
+	}
+}