X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fcommon%2Fsessiond-comm%2Fsessiond-comm.c;h=61f4ed52ba2dfffe98591e7e65b3ae7deef70336;hb=97e190465f6a2a7d5bf72f445bb4d9d8544a0916;hp=aa24e82ddff31d80f6d0d15fe969aca8dc80f49e;hpb=52b07d8a5f38946bea3176d486c1934ca7639415;p=lttng-tools.git

diff --git a/src/common/sessiond-comm/sessiond-comm.c b/src/common/sessiond-comm/sessiond-comm.c
index aa24e82dd..61f4ed52b 100644
--- a/src/common/sessiond-comm/sessiond-comm.c
+++ b/src/common/sessiond-comm/sessiond-comm.c
@@ -101,6 +101,10 @@ static const char *lttcomm_readable_code[] = {
 	[ LTTCOMM_ERR_INDEX(LTTCOMM_UST_EVENT_NOT_FOUND)] = "UST event not found",
 	[ LTTCOMM_ERR_INDEX(LTTCOMM_UST_CONTEXT_EXIST)] = "UST context already exist",
 	[ LTTCOMM_ERR_INDEX(LTTCOMM_UST_CONTEXT_INVAL)] = "UST invalid context",
+	[ LTTCOMM_ERR_INDEX(LTTCOMM_NEED_ROOT_SESSIOND) ] = "Tracing the kernel requires a root lttng-sessiond daemon and \"tracing\" group user membership",
+	[ LTTCOMM_ERR_INDEX(LTTCOMM_TRACE_ALREADY_STARTED) ] = "Tracing already started",
+	[ LTTCOMM_ERR_INDEX(LTTCOMM_TRACE_ALREADY_STOPPED) ] = "Tracing already stopped",
+
 	[ LTTCOMM_ERR_INDEX(CONSUMERD_COMMAND_SOCK_READY) ] = "consumerd command socket ready",
 	[ LTTCOMM_ERR_INDEX(CONSUMERD_SUCCESS_RECV_FD) ] = "consumerd success on receiving fds",
 	[ LTTCOMM_ERR_INDEX(CONSUMERD_ERROR_RECV_FD) ] = "consumerd error on receiving fds",
@@ -291,7 +295,13 @@ ssize_t lttcomm_send_unix_sock(int sock, void *buf, size_t len)
 
 	ret = sendmsg(sock, &msg, 0);
 	if (ret < 0) {
-		PERROR("sendmsg");
+		/*
+		 * Only warn about EPIPE when quiet mode is deactivated.
+		 * We consider EPIPE as expected.
+		 */
+		if (errno != EPIPE || !lttng_opt_quiet) {
+			PERROR("sendmsg");
+		}
 	}
 
 	return ret;
@@ -356,7 +366,13 @@ ssize_t lttcomm_send_fds_unix_sock(int sock, int *fds, size_t nb_fd)
 
 	ret = sendmsg(sock, &msg, 0);
 	if (ret < 0) {
-		PERROR("sendmsg");
+		/*
+		 * Only warn about EPIPE when quiet mode is deactivated.
+		 * We consider EPIPE as expected.
+		 */
+		if (errno != EPIPE || !lttng_opt_quiet) {
+			PERROR("sendmsg");
+		}
 	}
 	return ret;
 }
@@ -469,9 +485,14 @@ ssize_t lttcomm_send_creds_unix_sock(int sock, void *buf, size_t len)
 
 	ret = sendmsg(sock, &msg, 0);
 	if (ret < 0) {
-		PERROR("sendmsg");
+		/*
+		 * Only warn about EPIPE when quiet mode is deactivated.
+		 * We consider EPIPE as expected.
+		 */
+		if (errno != EPIPE || !lttng_opt_quiet) {
+			PERROR("sendmsg");
+		}
 	}
-
 	return ret;
 }