Initial QSfera import

Server/vendor/github.com/segmentio/kafka-go/buffer.go

@@ -0,0 +1,27 @@
+package kafka
+
+import (
+	"bytes"
+	"sync"
+)
+
+var bufferPool = sync.Pool{
+	New: func() interface{} { return newBuffer() },
+}
+
+func newBuffer() *bytes.Buffer {
+	b := new(bytes.Buffer)
+	b.Grow(65536)
+	return b
+}
+
+func acquireBuffer() *bytes.Buffer {
+	return bufferPool.Get().(*bytes.Buffer)
+}
+
+func releaseBuffer(b *bytes.Buffer) {
+	if b != nil {
+		b.Reset()
+		bufferPool.Put(b)
+	}
+}