upstream sync

services/location/mapbox_lib/pools.go

@@ -0,0 +1,31 @@
+package mapbox
+
+import (
+	"bytes"
+	"sync"
+)
+
+type noCopy struct{}
+
+func (*noCopy) Lock()   {}
+func (*noCopy) Unlock() {}
+
+type stringsBufferPool struct {
+	noCopy noCopy
+	p      sync.Pool
+}
+
+func newStringsBufferPool() *stringsBufferPool {
+	return &stringsBufferPool{p: sync.Pool{New: func() interface{} {
+		return &bytes.Buffer{}
+	}}}
+}
+
+func (pool *stringsBufferPool) acquireStringsBuilder() *bytes.Buffer {
+	return pool.p.Get().(*bytes.Buffer)
+}
+
+func (pool *stringsBufferPool) releaseStringsBuilder(b *bytes.Buffer) {
+	b.Reset()
+	pool.p.Put(b)
+}