X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Flib%2Flttng-ctl%2Flttng-ctl-helper.h;fp=src%2Flib%2Flttng-ctl%2Flttng-ctl-helper.h;h=8e9786bc244dd361081133c960d9bd785f0da3e8;hp=b7a28268cb3b4ce83b95eb978667951527064212;hb=795a978d0fddb43019e4031932cf98840c54f504;hpb=8d7f6956990e8d0e0f32a532321db44263c6903f

diff --git a/src/lib/lttng-ctl/lttng-ctl-helper.h b/src/lib/lttng-ctl/lttng-ctl-helper.h
index b7a28268c..8e9786bc2 100644
--- a/src/lib/lttng-ctl/lttng-ctl-helper.h
+++ b/src/lib/lttng-ctl/lttng-ctl-helper.h
@@ -42,7 +42,20 @@ void lttng_ctl_copy_lttng_domain(struct lttng_domain *dst,
  * error code. If buf is NULL, 0 is returned on success.
  */
 int lttng_ctl_ask_sessiond_varlen(struct lttcomm_session_msg *lsm,
-		const void *vardata, size_t varlen, void **buf);
+		const void *vardata, size_t vardata_len,
+		void **user_payload_buf, void **user_cmd_header_buf,
+		size_t *user_cmd_header_len);
+
+/*
+ * Calls lttng_ctl_ask_sessiond_varlen() with no expected command header.
+ */
+static inline
+int lttng_ctl_ask_sessiond_varlen_no_cmd_header(struct lttcomm_session_msg *lsm,
+		void *vardata, size_t vardata_len, void **user_payload_buf)
+{
+	return lttng_ctl_ask_sessiond_varlen(lsm, vardata,
+		vardata_len, user_payload_buf, NULL, NULL);
+}
 
 /*
  * Use this if no variable length data needs to be sent.
@@ -50,7 +63,7 @@ int lttng_ctl_ask_sessiond_varlen(struct lttcomm_session_msg *lsm,
 static inline
 int lttng_ctl_ask_sessiond(struct lttcomm_session_msg *lsm, void **buf)
 {
-	return lttng_ctl_ask_sessiond_varlen(lsm, NULL, 0, buf);
+	return lttng_ctl_ask_sessiond_varlen_no_cmd_header(lsm, NULL, 0, buf);
 }
 
 int lttng_check_tracing_group(void);