1 files changed, 85 insertions, 0 deletions
diff --git a/internal/io/pool/scanner_pool.go b/internal/io/pool/scanner_pool.go
new file mode 100644
index 0000000..228d65c
--- /dev/null
+++ b/internal/io/pool/scanner_pool.go
@@ -0,0 +1,85 @@
+package pool
+
+import (
+	"sync"
+)
+
+// ScannerBufferPool provides a pool of 1MB buffers for scanner operations
+// to reduce allocation overhead in the direct-output read path
+var ScannerBufferPool = sync.Pool{
+	New: func() interface{} {
+		// 1MB buffer for scanner operations
+		buf := make([]byte, 1024*1024)
+		return &buf
+	},
+}
+
+// MediumBufferPool provides a pool of 64KB buffers for tail mode reads
+var MediumBufferPool = sync.Pool{
+	New: func() interface{} {
+		// 64KB buffer for medium-sized operations
+		buf := make([]byte, 64*1024)
+		return &buf
+	},
+}
+
+// SmallBufferPool provides a pool of 4KB buffers for small operations
+var SmallBufferPool = sync.Pool{
+	New: func() interface{} {
+		// 4KB buffer for small operations
+		buf := make([]byte, 4*1024)
+		return &buf
+	},
+}
+
+// GetScannerBuffer gets a 1MB buffer from the pool
+func GetScannerBuffer() *[]byte {
+	return ScannerBufferPool.Get().(*[]byte)
+}
+
+// PutScannerBuffer returns a scanner buffer to the pool
+func PutScannerBuffer(buf *[]byte) {
+	// Clear the buffer before returning to pool to avoid memory leaks
+	if buf != nil && len(*buf) > 0 {
+		// Reset to original capacity but clear contents
+		*buf = (*buf)[:cap(*buf)]
+		for i := range *buf {
+			(*buf)[i] = 0
+		}
+	}
+	ScannerBufferPool.Put(buf)
+}
+
+// GetMediumBuffer gets a 64KB buffer from the pool
+func GetMediumBuffer() *[]byte {
+	return MediumBufferPool.Get().(*[]byte)
+}
+
+// PutMediumBuffer returns a medium buffer to the pool
+func PutMediumBuffer(buf *[]byte) {
+	// Clear the buffer before returning to pool
+	if buf != nil && len(*buf) > 0 {
+		*buf = (*buf)[:cap(*buf)]
+		for i := range *buf {
+			(*buf)[i] = 0
+		}
+	}
+	MediumBufferPool.Put(buf)
+}
+
+// GetSmallBuffer gets a 4KB buffer from the pool
+func GetSmallBuffer() *[]byte {
+	return SmallBufferPool.Get().(*[]byte)
+}
+
+// PutSmallBuffer returns a small buffer to the pool
+func PutSmallBuffer(buf *[]byte) {
+	// Clear the buffer before returning to pool
+	if buf != nil && len(*buf) > 0 {
+		*buf = (*buf)[:cap(*buf)]
+		for i := range *buf {
+			(*buf)[i] = 0
+		}
+	}
+	SmallBufferPool.Put(buf)
+}
+\ No newline at end of file