SoW-2019-0002: Dynamic Snapshot

[lttng-tools.git] / src / bin / lttng-sessiond / trace-kernel.h

diff --git a/src/bin/lttng-sessiond/trace-kernel.h b/src/bin/lttng-sessiond/trace-kernel.h
index b290ce492a6dac7e35ca8c8eac9a3000e0b90f7c..88e356854dd23217bb5c266f2199f61ad90a1eaa 100644 (file)
--- a/src/bin/lttng-sessiond/trace-kernel.h
+++ b/src/bin/lttng-sessiond/trace-kernel.h
@@ -23,6 +23,11 @@ struct ltt_kernel_event_list {
        struct cds_list_head head;
 };
 
+/* Kernel event rule token list */
+struct ltt_kernel_token_event_rule_list {
+       struct cds_list_head head;
+};
+
 /* Channel stream list */
 struct ltt_kernel_stream_list {
        struct cds_list_head head;
@@ -52,6 +57,18 @@ struct ltt_kernel_event {
        struct lttng_userspace_probe_location *userspace_probe_location;
 };
 
+/* Kernel event */
+struct ltt_kernel_token_event_rule {
+       int fd;
+       int enabled;
+       enum lttng_event_type type;
+       struct lttng_event_rule *event_rule;
+       struct cds_list_head list;
+       uint64_t token;
+       const struct lttng_filter_bytecode *filter;
+       struct lttng_userspace_probe_location *userspace_probe_location;
+};
+
 /* Kernel channel */
 struct ltt_kernel_channel {
        int fd;
@@ -135,6 +152,10 @@ struct ltt_kernel_event *trace_kernel_find_event(
 struct ltt_kernel_channel *trace_kernel_get_channel_by_name(
                const char *name, struct ltt_kernel_session *session);
 
+struct ltt_kernel_token_event_rule *trace_kernel_find_trigger_by_token(
+               struct ltt_kernel_token_event_rule_list *list,
+               uint64_t token);
+
 /*
  * Create functions malloc() the data structure.
  */
@@ -149,8 +170,14 @@ struct ltt_kernel_stream *trace_kernel_create_stream(const char *name,
                unsigned int count);
 struct ltt_kernel_context *trace_kernel_create_context(
                struct lttng_kernel_context *ctx);
+enum lttng_error_code trace_kernel_create_token_event_rule(
+               struct lttng_event_rule *event_rule,
+               uint64_t token,
+               struct ltt_kernel_token_event_rule **kernel_token_event_rule);
 struct ltt_kernel_context *trace_kernel_copy_context(
                struct ltt_kernel_context *ctx);
+enum lttng_error_code trace_kernel_init_trigger_from_event_rule(const struct lttng_event_rule *rule,
+               struct lttng_kernel_trigger *kernel_trigger);
 
 /*
  * Destroy functions free() the data structure and remove from linked list if
@@ -162,6 +189,7 @@ void trace_kernel_destroy_channel(struct ltt_kernel_channel *channel);
 void trace_kernel_destroy_event(struct ltt_kernel_event *event);
 void trace_kernel_destroy_stream(struct ltt_kernel_stream *stream);
 void trace_kernel_destroy_context(struct ltt_kernel_context *ctx);
+void trace_kernel_destroy_token_event_rule(struct ltt_kernel_token_event_rule *rule);
 void trace_kernel_free_session(struct ltt_kernel_session *session);
 
 #endif /* _LTT_TRACE_KERNEL_H */