Implement consumer ring buffer position sampling

[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 27e3dd0e4903b6c22a019fb3b2f2b713d878bfce..03a50e87799574d708a978c9163cf29cec38fbfe 100644 (file)
--- a/src/bin/lttng-sessiond/ust-app.h
+++ b/src/bin/lttng-sessiond/ust-app.h
@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
+ * Copyright (C) 2016 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License, version 2 only,
@@ -15,7 +16,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef _LTT_UST_APP_H 
+#ifndef _LTT_UST_APP_H
 #define _LTT_UST_APP_H
 
 #include <stdint.h>
@@ -48,7 +49,7 @@ struct ust_app_notify_sock_obj {
 struct ust_app_ht_key {
        const char *name;
        const struct lttng_filter_bytecode *filter;
-       enum lttng_ust_loglevel_type loglevel;
+       enum lttng_ust_loglevel_type loglevel_type;
        const struct lttng_event_exclusion *exclusion;
 };
 
@@ -101,7 +102,7 @@ struct ust_app_stream_list {
 
 struct ust_app_ctx {
        int handle;
-       struct lttng_ust_context ctx;
+       struct lttng_ust_context_attr ctx;
        struct lttng_ust_object_data *obj;
        struct lttng_ht_node_ulong node;
        struct cds_list_head list;
@@ -156,6 +157,7 @@ struct ust_app_channel {
        struct lttng_ht *events;
        uint64_t tracefile_size;
        uint64_t tracefile_count;
+       uint64_t monitor_timer_interval;
        /*
         * Node indexed by channel name in the channels' hash table of a session.
         */
@@ -192,6 +194,11 @@ struct ust_app_session {
        uint64_t id;    /* Unique session identifier */
        struct lttng_ht *channels; /* Registered channels */
        struct lttng_ht_node_u64 node;
+       /*
+        * Node indexed by UST session object descriptor (handle). Stored in the
+        * ust_sessions_objd hash table in the ust_app object.
+        */
+       struct lttng_ht_node_ulong ust_objd_node;
        char path[PATH_MAX];
        /* UID/GID of the application owning the session */
        uid_t uid;
@@ -272,6 +279,10 @@ struct ust_app {
         * Hash table containing ust_app_channel indexed by channel objd.
         */
        struct lttng_ht *ust_objd;
+       /*
+        * Hash table containing ust_app_session indexed by objd.
+        */
+       struct lttng_ht *ust_sessions_objd;
 
        /*
         * If this application is of the agent domain and this is non negative then
@@ -318,7 +329,6 @@ void ust_app_global_update_all(struct ltt_ust_session *usess);
 void ust_app_clean_list(void);
 int ust_app_ht_alloc(void);
 struct ust_app *ust_app_find_by_pid(pid_t pid);
-int ust_app_calibrate_glb(struct lttng_ust_calibrate *calibrate);
 struct ust_app_stream *ust_app_alloc_stream(void);
 int ust_app_recv_registration(int sock, struct ust_register_msg *msg);
 int ust_app_recv_notify(int sock);
@@ -334,6 +344,15 @@ int ust_app_snapshot_record(struct ltt_ust_session *usess,
 uint64_t ust_app_get_size_one_more_packet_per_stream(
                struct ltt_ust_session *usess, uint64_t cur_nr_packets);
 struct ust_app *ust_app_find_by_sock(int sock);
+int ust_app_uid_get_channel_runtime_stats(uint64_t ust_session_id,
+               struct cds_list_head *buffer_reg_uid_list,
+               struct consumer_output *consumer, uint64_t uchan_id,
+               int overwrite, uint64_t *discarded, uint64_t *lost);
+int ust_app_pid_get_channel_runtime_stats(struct ltt_ust_session *usess,
+               struct ltt_ust_channel *uchan,
+               struct consumer_output *consumer,
+               int overwrite, uint64_t *discarded, uint64_t *lost);
+int ust_app_regenerate_statedump_all(struct ltt_ust_session *usess);
 
 static inline
 int ust_app_supported(void)
@@ -478,11 +497,6 @@ int ust_app_enable_event_pid(struct ltt_ust_session *usess,
        return 0;
 }
 static inline
-int ust_app_calibrate_glb(struct lttng_ust_calibrate *calibrate)
-{
-       return 0;
-}
-static inline
 int ust_app_recv_registration(int sock, struct ust_register_msg *msg)
 {
        return 0;
@@ -548,6 +562,29 @@ uint64_t ust_app_get_size_one_more_packet_per_stream(
                struct ltt_ust_session *usess, uint64_t cur_nr_packets) {
        return 0;
 }
+static inline
+int ust_app_uid_get_channel_runtime_stats(uint64_t ust_session_id,
+               struct cds_list_head *buffer_reg_uid_list,
+               struct consumer_output *consumer, int overwrite,
+               uint64_t uchan_id, uint64_t *discarded, uint64_t *lost)
+{
+       return 0;
+}
+
+static inline
+int ust_app_pid_get_channel_runtime_stats(struct ltt_ust_session *usess,
+               struct ltt_ust_channel *uchan,
+               struct consumer_output *consumer,
+               int overwrite, uint64_t *discarded, uint64_t *lost)
+{
+       return 0;
+}
+
+static inline
+int ust_app_regenerate_statedump_all(struct ltt_ust_session *usess)
+{
+       return 0;
+}
 
 #endif /* HAVE_LIBLTTNG_UST_CTL */