From f9ef2270063488a9892b5a3f8da680ddd8a5b7f7 Mon Sep 17 00:00:00 2001 From: Ben Pfaff Date: Wed, 22 Jul 2015 11:22:01 -0700 Subject: [PATCH] pcap-file: Flush packets to operating system immediately. This makes the pcap files written by netdev-dummy up-to-date even if one kills the process with a signal. This could be a performance hit if the pcap file writer were to be used in some kind of performance critical situation, but so far it's only used in netdev-dummy, which is just for testing. Signed-off-by: Ben Pfaff Acked-by: Andy Zhou --- lib/pcap-file.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/lib/pcap-file.c b/lib/pcap-file.c index 553a7b6d7..a850d217f 100644 --- a/lib/pcap-file.c +++ b/lib/pcap-file.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2009, 2010, 2012, 2013, 2014 Nicira, Inc. + * Copyright (c) 2009, 2010, 2012, 2013, 2014, 2015 Nicira, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -130,6 +130,7 @@ ovs_pcap_write_header(FILE *file) ph.snaplen = 1518; ph.network = 1; /* Ethernet */ ignore(fwrite(&ph, sizeof ph, 1, file)); + fflush(file); } int @@ -202,6 +203,7 @@ ovs_pcap_write(FILE *file, struct dp_packet *buf) prh.orig_len = dp_packet_size(buf); ignore(fwrite(&prh, sizeof prh, 1, file)); ignore(fwrite(dp_packet_data(buf), dp_packet_size(buf), 1, file)); + fflush(file); } struct tcp_key { -- 2.20.1