feature: packet I/O suppport dumpfile list mode

src/packet_io/packet_io.h

@@ -6,6 +6,7 @@ extern "C"
 #endif
 
 #include <stdint.h>
+#include <limits.h>
 
 #include "utils.h"
 
@@ -48,7 +49,8 @@ struct __attribute__((aligned(64))) packet_io_stat
 enum packet_io_mode
 {
     PACKET_IO_DUMPFILE = 0,
-    PACKET_IO_MARSIO = 1,
+    PACKET_IO_DUMPFILELIST = 1,
+    PACKET_IO_MARSIO = 2,
 };
 
 struct packet_io_options
@@ -56,7 +58,7 @@ struct packet_io_options
     enum packet_io_mode mode;
 
     // for dumpfile
-    char dumpfile_dir[256];
+    char dumpfile_path[PATH_MAX];
 
     // for marsio
     char app_symbol[64];