+#define PROTOCOL_VERSION 19
+#define MIN_PROTOCOL_VERSION 11
+#define MAX_PROTOCOL_VERSION 30
+
+#define RSYNC_PORT 873
+
+#define SPARSE_WRITE_SIZE (1024)
+#define WRITE_SIZE (32*1024)
+#define CHUNK_SIZE (32*1024)
+#define MAX_MAP_SIZE (1*1024*1024)
+#define IO_BUFFER_SIZE (4092)
+#define MAX_READ_BUFFER (1024*1024)