X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fcommon%2Fsessiond-comm%2Fagent.h;h=e8d182515888cd0273ec8622eb8f47861ec8fc90;hb=c2d6932774987366baf42a93461cd73c38f1113a;hp=eced35185034bdc6fb7332e34303c5781b486e05;hpb=2f2540d783c712f6100e53d1a9d28329ba286216;p=lttng-tools.git

diff --git a/src/common/sessiond-comm/agent.h b/src/common/sessiond-comm/agent.h
index eced35185..e8d182515 100644
--- a/src/common/sessiond-comm/agent.h
+++ b/src/common/sessiond-comm/agent.h
@@ -18,7 +18,6 @@
 #ifndef AGENT_COMM
 #define AGENT_COMM
 
-#define _GNU_SOURCE
 #include <stdint.h>
 
 #include <lttng/lttng.h>
@@ -34,11 +33,14 @@ enum lttcomm_agent_command {
 };
 
 /*
- * Return code from the Java agent.
+ * Return codes from the agent.
  */
 enum lttcomm_agent_ret_code {
+	/* Success, assumed to be the first entry */
 	AGENT_RET_CODE_SUCCESS      = 1,
+	/* Invalid command */
 	AGENT_RET_CODE_INVALID      = 2,
+	/* Unknown logger name */
 	AGENT_RET_CODE_UNKNOWN_NAME = 3,
 	AGENT_RET_CODE_NR,
 };
@@ -53,12 +55,14 @@ struct lttcomm_agent_hdr {
 } LTTNG_PACKED;
 
 /*
- * Enable event command payload.
+ * Enable event command payload. Will be immediately followed by the
+ * variable-length string representing the filter expression.
  */
 struct lttcomm_agent_enable {
-	uint32_t loglevel;
+	uint32_t loglevel_value;
 	uint32_t loglevel_type;
 	char name[LTTNG_SYMBOL_NAME_LEN];
+	uint32_t filter_expression_length;
 } LTTNG_PACKED;
 
 /*
@@ -69,7 +73,7 @@ struct lttcomm_agent_disable {
 } LTTNG_PACKED;
 
 /*
- * Generic reply coming from the Java Agent.
+ * Generic reply coming from the agent.
  */
 struct lttcomm_agent_generic_reply {
 	uint32_t ret_code;
@@ -84,7 +88,7 @@ struct lttcomm_agent_list_reply_hdr {
 } LTTNG_PACKED;
 
 /*
- * List command reply payload coming from the Java Agent.
+ * List command reply payload coming from the agent.
  */
 struct lttcomm_agent_list_reply {
 	uint32_t nb_event;