X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Ftrace-ust.h;h=a65bd30a954457ca8ba088244f970bb793f3d10e;hb=be42c96885c522f857f146fa6f7ae53856e3bed2;hp=6a41f0f9fbcdf6994c9807d153e37051b513bcdc;hpb=6b453b5e07e90591c955ae14c60c13b7c1ed28a0;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/trace-ust.h b/src/bin/lttng-sessiond/trace-ust.h
index 6a41f0f9f..a65bd30a9 100644
--- a/src/bin/lttng-sessiond/trace-ust.h
+++ b/src/bin/lttng-sessiond/trace-ust.h
@@ -27,9 +27,10 @@
 #include <common/defaults.h>
 
 #include "consumer.h"
-#include "jul.h"
 #include "ust-ctl.h"
 
+struct agent;
+
 struct ltt_ust_ht_key {
 	const char *name;
 	const struct lttng_filter_bytecode *filter;
@@ -74,15 +75,25 @@ struct ltt_ust_domain_global {
 	struct cds_list_head registry_buffer_uid_list;
 };
 
+struct ust_pid_tracker_node {
+	struct lttng_ht_node_ulong node;
+};
+
+struct ust_pid_tracker {
+	struct lttng_ht *ht;
+};
+
 /* UST session */
 struct ltt_ust_session {
 	uint64_t id;    /* Unique identifier of session */
-	int start_trace;
 	struct ltt_ust_domain_global domain_global;
-	struct jul_domain domain_jul;
+	/* Hash table of agent indexed by agent domain. */
+	struct lttng_ht *agents;
 	/* UID/GID of the user owning the session */
 	uid_t uid;
 	gid_t gid;
+	/* Is the session active meaning has is been started or stopped. */
+	unsigned int active:1;
 	/*
 	 * Two consumer_output object are needed where one is for the current
 	 * output object and the second one is the temporary object used to store
@@ -111,6 +122,14 @@ struct ltt_ust_session {
 
 	/* Metadata channel attributes. */
 	struct lttng_ust_channel_attr metadata_attr;
+
+	/*
+	 * Path where to keep the shared memory files.
+	 */
+	char root_shm_path[PATH_MAX];
+	char shm_path[PATH_MAX];
+
+	struct ust_pid_tracker pid_tracker;
 };
 
 /*
@@ -156,6 +175,8 @@ struct ltt_ust_event *trace_ust_find_event(struct lttng_ht *ht,
 		struct lttng_event_exclusion *exclusion);
 struct ltt_ust_channel *trace_ust_find_channel_by_name(struct lttng_ht *ht,
 		char *name);
+struct agent *trace_ust_find_agent(struct ltt_ust_session *session,
+		enum lttng_domain_type domain_type);
 
 /*
  * Create functions malloc() the data structure.
@@ -168,6 +189,8 @@ struct ltt_ust_event *trace_ust_create_event(struct lttng_event *ev,
 		struct lttng_event_exclusion *exclusion);
 struct ltt_ust_context *trace_ust_create_context(
 		struct lttng_event_context *ctx);
+int trace_ust_match_context(struct ltt_ust_context *uctx,
+		struct lttng_event_context *ctx);
 void trace_ust_delete_channel(struct lttng_ht *ht,
 		struct ltt_ust_channel *channel);
 
@@ -179,6 +202,14 @@ void trace_ust_destroy_session(struct ltt_ust_session *session);
 void trace_ust_destroy_channel(struct ltt_ust_channel *channel);
 void trace_ust_destroy_event(struct ltt_ust_event *event);
 
+int trace_ust_track_pid(struct ltt_ust_session *session, int pid);
+int trace_ust_untrack_pid(struct ltt_ust_session *session, int pid);
+
+int trace_ust_pid_tracker_lookup(struct ltt_ust_session *session, int pid);
+
+ssize_t trace_ust_list_tracker_pids(struct ltt_ust_session *session,
+		int32_t **_pids);
+
 #else /* HAVE_LIBLTTNG_UST_CTL */
 
 static inline int trace_ust_ht_match_event(struct cds_lfht_node *node,
@@ -236,6 +267,12 @@ struct ltt_ust_context *trace_ust_create_context(
 {
 	return NULL;
 }
+static inline
+int trace_ust_match_context(struct ltt_ust_context *uctx,
+		struct lttng_event_context *ctx)
+{
+	return 0;
+}
 static inline struct ltt_ust_event *trace_ust_find_event(struct lttng_ht *ht,
 		char *name, struct lttng_filter_bytecode *filter, int loglevel,
 		struct lttng_event_exclusion *exclusion)
@@ -248,7 +285,33 @@ void trace_ust_delete_channel(struct lttng_ht *ht,
 {
 	return;
 }
-
+static inline
+struct agent *trace_ust_find_agent(struct ltt_ust_session *session,
+		enum lttng_domain_type domain_type)
+{
+	return NULL;
+}
+static inline
+int trace_ust_track_pid(struct ltt_ust_session *session, int pid)
+{
+	return 0;
+}
+static inline
+int trace_ust_untrack_pid(struct ltt_ust_session *session, int pid)
+{
+	return 0;
+}
+static inline
+int trace_ust_pid_tracker_lookup(struct ltt_ust_session *session, int pid)
+{
+	return 0;
+}
+static inline
+ssize_t trace_ust_list_tracker_pids(struct ltt_ust_session *session,
+		int32_t **_pids)
+{
+	return -1;
+}
 #endif /* HAVE_LIBLTTNG_UST_CTL */
 
 #endif /* _LTT_TRACE_UST_H */