pools: Add a pool for buffers

pkg/pools/pools.go

@@ -0,0 +1,34 @@
+// Package pools holds various pools for reuse
+package pools
+
+import (
+	"bytes"
+	"strings"
+	"sync"
+)
+
+var builders = sync.Pool{
+	New: func() any { return new(strings.Builder) },
+}
+
+func GetBuilder() *strings.Builder {
+	return builders.Get().(*strings.Builder)
+}
+
+func ReleaseBuilder(builder *strings.Builder) {
+	builder.Reset()
+	builders.Put(builder)
+}
+
+var buffers = sync.Pool{
+	New: func() any { return new(bytes.Buffer) },
+}
+
+func GetBuffer() *bytes.Buffer {
+	return buffers.Get().(*bytes.Buffer)
+}
+
+func ReleaseBuffer(buffer *bytes.Buffer) {
+	buffer.Reset()
+	buffers.Put(buffer)
+}