[spp] [PATCH] spp_primary: change log file open mode

[ogawa.yasufumi at lab.ntt.co.jp]

From: Yasufumi Ogawa <ogawa.yasufumi at lab.ntt.co.jp>

This update is to change to open file in create and append mode to
accept next logs after the process is terminated at once.

Signed-off-by: Yasufumi Ogawa <ogawa.yasufumi at lab.ntt.co.jp>
---
 src/primary/main.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/primary/main.c b/src/primary/main.c
index 8d12bf6..fc9ca9b 100644
--- a/src/primary/main.c
+++ b/src/primary/main.c
@@ -284,8 +284,10 @@ launch_sec_proc(char *sec_name, int sec_id, char **sec_args)
 			RTE_LOG(ERR, PRIMARY,
 					"Failed to open secondary proc.\n");
 		else if (pid == 0) {
-			/* Open log file with permission `0664` */
-			fd = open(path_spp_log, O_RDWR | O_CREAT, 0664);
+			/* Open log file with mode equals to 'a+' */
+			fd = open(path_spp_log,
+					O_RDWR | O_CREAT | O_APPEND,
+					0666);
 
 			/* change to output of stdout and stderr to logfile */
 			dup2(fd, 1);
-- 
2.7.4