From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Fri, 2 Sep 2011 17:02:38 +0000 (-0400)
Subject: fdatasync sockets after send
X-Git-Tag: v1.9.1~207
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=a285a37667147f0e7ade6b45d147440438ee4d50;p=lttng-ust.git

fdatasync sockets after send

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/libust/lttng-ust-comm.c b/libust/lttng-ust-comm.c
index c5a3064a..1507a65f 100644
--- a/libust/lttng-ust-comm.c
+++ b/libust/lttng-ust-comm.c
@@ -184,6 +184,10 @@ int register_app_to_sessiond(int socket)
 	ret = lttcomm_send_unix_sock(socket, &reg_msg, sizeof(reg_msg));
 	if (ret >= 0 && ret != sizeof(reg_msg))
 		return -EIO;
+	ret = fdatasync(socket);
+	if (ret) {
+		return -errno;
+	}
 	return ret;
 }
 
@@ -191,11 +195,17 @@ static
 int send_reply(int sock, struct lttcomm_ust_reply *lur)
 {
 	ssize_t len;
+	int ret;
 
 	len = lttcomm_send_unix_sock(sock, lur, sizeof(*lur));
 	switch (len) {
 	case sizeof(*lur):
 		DBG("message successfully sent");
+		ret = fdatasync(sock);
+		if (ret) {
+			DBG("fdatasync error");
+			return -1;
+		}
 		return 0;
 	case -1:
 		if (errno == ECONNRESET) {