Change the UST event hash table match function

[lttng-tools.git] / src / bin / lttng-sessiond / ust-app.h

diff --git a/src/bin/lttng-sessiond/ust-app.h b/src/bin/lttng-sessiond/ust-app.h
index 906a6a209b1e63eca442e438fbb76497d1937775..72adf50aa42d50970511ebbae357f5bc8778c492 100644 (file)
--- a/src/bin/lttng-sessiond/ust-app.h
+++ b/src/bin/lttng-sessiond/ust-app.h
@@ -24,12 +24,21 @@
 
 /* lttng-ust supported version. */
 #define LTTNG_UST_COMM_MAJOR          2        /* comm protocol major version */
-#define UST_APP_MAJOR_VERSION         2 /* UST version supported */
+#define UST_APP_MAJOR_VERSION         3 /* Internal UST version supported */
 
 #define UST_APP_EVENT_LIST_SIZE 32
 
+struct lttng_filter_bytecode;
+struct lttng_ust_filter_bytecode;
+
 extern int ust_consumerd64_fd, ust_consumerd32_fd;
 
+struct ust_app_ht_key {
+       const char *name;
+       const struct lttng_ust_filter_bytecode *filter;
+       enum lttng_ust_loglevel_type loglevel;
+};
+
 /*
  * Application registration data structure.
  */
@@ -45,17 +54,16 @@ struct ust_register_msg {
 };
 
 /*
- * Global applications HT used by the session daemon.
+ * Global applications HT used by the session daemon. This table is indexed by
+ * PID using the pid_n node and pid value of an ust_app.
  */
 struct lttng_ht *ust_app_ht;
 
-struct lttng_ht *ust_app_sock_key_map;
-
-struct ust_app_key {
-       pid_t pid;
-       int sock;
-       struct lttng_ht_node_ulong node;
-};
+/*
+ * Global applications HT used by the session daemon. This table is indexed by
+ * socket using the sock_n node and sock value of an ust_app.
+ */
+struct lttng_ht *ust_app_ht_by_sock;
 
 struct ust_app_ctx {
        int handle;
@@ -70,8 +78,8 @@ struct ust_app_event {
        struct lttng_ust_object_data *obj;
        struct lttng_ust_event attr;
        char name[LTTNG_UST_SYM_NAME_LEN];
-       struct lttng_ht *ctx;
        struct lttng_ht_node_str node;
+       struct lttng_ust_filter_bytecode *filter;
 };
 
 struct ust_app_channel {
@@ -106,6 +114,8 @@ struct ust_app_session {
  * and a linked list is kept of all running traceable app.
  */
 struct ust_app {
+       int sock;
+       pid_t pid;
        pid_t ppid;
        uid_t uid;           /* User ID that owns the apps */
        gid_t gid;           /* Group ID that owns the apps */
@@ -118,8 +128,8 @@ struct ust_app {
        uint32_t v_minor;    /* Verion minor number */
        char name[17];       /* Process name (short) */
        struct lttng_ht *sessions;
-       struct lttng_ht_node_ulong node;
-       struct ust_app_key key;
+       struct lttng_ht_node_ulong pid_n;
+       struct lttng_ht_node_ulong sock_n;
 };
 
 #ifdef HAVE_LIBLTTNG_UST_CTL
@@ -139,6 +149,7 @@ int ust_app_stop_trace_all(struct ltt_ust_session *usess);
 int ust_app_destroy_trace(struct ltt_ust_session *usess, struct ust_app *app);
 int ust_app_destroy_trace_all(struct ltt_ust_session *usess);
 int ust_app_list_events(struct lttng_event **events);
+int ust_app_list_event_fields(struct lttng_event_field **fields);
 int ust_app_create_channel_glb(struct ltt_ust_session *usess,
                struct ltt_ust_channel *uchan);
 int ust_app_create_event_glb(struct ltt_ust_session *usess,
@@ -161,11 +172,11 @@ int ust_app_enable_all_event_glb(struct ltt_ust_session *usess,
                struct ltt_ust_channel *uchan);
 int ust_app_disable_event_glb(struct ltt_ust_session *usess,
                struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent);
-int ust_app_add_ctx_event_glb(struct ltt_ust_session *usess,
-               struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent,
-               struct ltt_ust_context *uctx);
 int ust_app_add_ctx_channel_glb(struct ltt_ust_session *usess,
                struct ltt_ust_channel *uchan, struct ltt_ust_context *uctx);
+int ust_app_set_filter_event_glb(struct ltt_ust_session *usess,
+                struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent,
+               struct lttng_filter_bytecode *bytecode);
 void ust_app_global_update(struct ltt_ust_session *usess, int sock);
 
 void ust_app_clean_list(void);
@@ -200,7 +211,12 @@ int ust_app_stop_trace_all(struct ltt_ust_session *usess)
 static inline
 int ust_app_list_events(struct lttng_event **events)
 {
-       return 0;
+       return -ENOSYS;
+}
+static inline
+int ust_app_list_event_fields(struct lttng_event_field **fields)
+{
+       return -ENOSYS;
 }
 static inline
 int ust_app_register(struct ust_register_msg *msg, int sock)
@@ -303,13 +319,6 @@ int ust_app_enable_event_glb(struct ltt_ust_session *usess,
        return 0;
 }
 static inline
-int ust_app_add_ctx_event_glb(struct ltt_ust_session *usess,
-               struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent,
-               struct ltt_ust_context *uctx)
-{
-       return 0;
-}
-static inline
 int ust_app_add_ctx_channel_glb(struct ltt_ust_session *usess,
                struct ltt_ust_channel *uchan, struct ltt_ust_context *uctx)
 {
@@ -339,6 +348,13 @@ int ust_app_calibrate_glb(struct lttng_ust_calibrate *calibrate)
 {
        return 0;
 }
+static inline
+int ust_app_set_filter_event_glb(struct ltt_ust_session *usess,
+               struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent,
+               struct lttng_filter_bytecode *bytecode)
+{
+       return 0;
+}
 
 #endif /* HAVE_LIBLTTNG_UST_CTL */