X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fagent.h;h=7faae117ee141cbcb8e99bfa76484fc46d957ed4;hp=404365e0a5e4051e595788e1a72a71952c419c2a;hb=7c1d2758d663ac5f119eae6849e50b56546a0c48;hpb=022d91ba14053d6093a6d6a1af02a345c6fd42d2

diff --git a/src/bin/lttng-sessiond/agent.h b/src/bin/lttng-sessiond/agent.h
index 404365e0a..7faae117e 100644
--- a/src/bin/lttng-sessiond/agent.h
+++ b/src/bin/lttng-sessiond/agent.h
@@ -24,11 +24,15 @@
 #include <common/hashtable/hashtable.h>
 #include <lttng/lttng.h>
 
+/* Agent protocol version that is verified during the agent registration. */
+#define AGENT_MAJOR_VERSION		1
+#define AGENT_MINOR_VERSION		0
+
 /*
  * Hash table that contains the agent app created upon registration indexed by
- * socket.
+ * socket. Global to the session daemon.
  */
-struct lttng_ht *agent_apps_ht_by_sock;
+extern struct lttng_ht *agent_apps_ht_by_sock;
 
 struct agent_ht_key {
 	const char *name;
@@ -40,7 +44,11 @@ struct agent_ht_key {
  * find back the corresponding UST app object so both socket can be linked.
  */
 struct agent_register_msg {
+	/* This maps to a lttng_domain_type. */
+	uint32_t domain;
 	uint32_t pid;
+	uint32_t major_version;
+	uint32_t minor_version;
 };
 
 /*
@@ -54,6 +62,9 @@ struct agent_app {
 	 */
 	pid_t pid;
 
+	/* Domain of the application. */
+	enum lttng_domain_type domain;
+
 	/*
 	 * AGENT TCP socket that was created upon registration.
 	 */
@@ -95,16 +106,27 @@ struct agent {
 	 * actually enabled.
 	 */
 	unsigned int being_used:1;
+
+	/* What domain this agent is. */
+	enum lttng_domain_type domain;
+
 	/* Contains event indexed by name. */
 	struct lttng_ht *events;
+
+	/* Node used for the hash table indexed by domain type. */
+	struct lttng_ht_node_u64 node;
 };
 
-/* Setup agent subsystem. */
-int agent_setup(void);
+/* Allocate agent apps hash table */
+int agent_app_ht_alloc(void);
+/* Clean-up agent apps hash table */
+void agent_app_ht_clean(void);
 
 /* Initialize an already allocated agent domain. */
 int agent_init(struct agent *agt);
+struct agent *agent_create(enum lttng_domain_type domain);
 void agent_destroy(struct agent *agt);
+void agent_add(struct agent *agt, struct lttng_ht *ht);
 
 /* Agent event API. */
 struct agent_event *agent_create_event(const char *name,
@@ -119,17 +141,22 @@ void agent_delete_event(struct agent_event *event, struct agent *agt);
 void agent_destroy_event(struct agent_event *event);
 
 /* Agent app API. */
-struct agent_app *agent_create_app(pid_t pid, struct lttcomm_sock *sock);
+struct agent_app *agent_create_app(pid_t pid, enum lttng_domain_type domain,
+		struct lttcomm_sock *sock);
 void agent_add_app(struct agent_app *app);
 void agent_delete_app(struct agent_app *app);
 struct agent_app *agent_find_app_by_sock(int sock);
 void agent_destroy_app(struct agent_app *app);
+void agent_destroy_app_by_sock(int sock);
 int agent_send_registration_done(struct agent_app *app);
 
 /* Agent action API */
-int agent_enable_event(struct agent_event *event);
-int agent_disable_event(struct agent_event *event);
+int agent_enable_event(struct agent_event *event,
+		enum lttng_domain_type domain);
+int agent_disable_event(struct agent_event *event,
+		enum lttng_domain_type domain);
 void agent_update(struct agent *agt, int sock);
-int agent_list_events(struct lttng_event **events);
+int agent_list_events(struct lttng_event **events,
+		enum lttng_domain_type domain);
 
 #endif /* LTTNG_SESSIOND_AGENT_H */