Filter iteration: iterate on list of filters

[lttng-ust.git] / include / lttng / ust-events.h

diff --git a/include/lttng/ust-events.h b/include/lttng/ust-events.h
index 0e19ed2229ac9c7b417aee01be5113e0701351fe..1378a350fb867c35871257ae46c585459d8ccac4 100644 (file)
--- a/include/lttng/ust-events.h
+++ b/include/lttng/ust-events.h
@@ -257,7 +257,8 @@ struct session_wildcard {
        struct cds_list_head list;      /* per-session list of wildcards */
        struct cds_list_head session_list; /* node of session wildcard list */
        struct wildcard_entry *entry;
-       struct lttng_ust_filter_bytecode *filter_bytecode;
+       /* list of struct lttng_ust_filter_bytecode_node */
+       struct cds_list_head filter_bytecode;
        unsigned int enabled:1;
 };
 
@@ -270,7 +271,8 @@ struct wildcard_entry {
        /* head of session list to which this wildcard apply */
        struct cds_list_head session_list;
        enum lttng_ust_loglevel_type loglevel_type;
-       struct lttng_ust_filter_bytecode *filter_bytecode;
+       /* list of struct lttng_ust_filter_bytecode_node */
+       struct cds_list_head filter_bytecode;
        int loglevel;
        char name[0];
 };
@@ -297,7 +299,18 @@ struct lttng_ust_field_list {
 
 struct ust_pending_probe;
 struct ltt_event;
-struct lttng_ust_filter_bytecode;
+
+struct lttng_ust_filter_bytecode_node {
+       struct cds_list_head node;
+       struct lttng_ust_filter_bytecode bc;
+};
+
+struct lttng_bytecode_runtime {
+       /* Associated bytecode */
+       struct lttng_ust_filter_bytecode_node *bc;
+       int (*filter)(void *filter_data, const char *filter_stack_data);
+       struct cds_list_head node;
+};
 
 /*
  * ltt_event structure is referred to by the tracing fast path. It must be
@@ -313,7 +326,7 @@ struct ltt_event {
        struct ltt_channel *chan;
        int enabled;
        const struct lttng_event_desc *desc;
-       int (*filter)(void *filter_data, const char *filter_stack_data);
+       void *filter_unused;
        struct lttng_ctx *ctx;
        enum lttng_ust_instrumentation instrumentation;
        union {
@@ -323,8 +336,10 @@ struct ltt_event {
        struct ust_pending_probe *pending_probe;
        unsigned int metadata_dumped:1;
        /* LTTng-UST 2.1 starts here */
-       struct lttng_ust_filter_bytecode *filter_bytecode;
-       void *filter_data;
+       /* list of struct lttng_ust_filter_bytecode_node */
+       struct cds_list_head filter_bytecode;
+       /* list of struct lttng_bytecode_runtime */
+       struct cds_list_head bytecode_runtime;
 };
 
 struct channel;
@@ -508,11 +523,15 @@ int ltt_loglevel_match(const struct lttng_event_desc *desc,
 void ltt_probes_create_wildcard_events(struct wildcard_entry *entry,
                                struct session_wildcard *wildcard);
 int lttng_filter_event_attach_bytecode(struct ltt_event *event,
-                struct lttng_ust_filter_bytecode *filter);
+                struct lttng_ust_filter_bytecode_node *filter);
 int lttng_filter_wildcard_attach_bytecode(struct session_wildcard *wildcard,
-                struct lttng_ust_filter_bytecode *filter);
-void lttng_filter_event_link_bytecode(struct ltt_event *event,
-               struct lttng_ust_filter_bytecode *filter_bytecode);
+                struct lttng_ust_filter_bytecode_node *filter);
+void lttng_filter_event_link_bytecode(struct ltt_event *event);
+void lttng_filter_event_link_wildcard_bytecode(struct ltt_event *event,
+               struct session_wildcard *wildcard);
 void lttng_filter_wildcard_link_bytecode(struct session_wildcard *wildcard);
+void lttng_free_event_filter_bytecode(struct ltt_event *event);
+void lttng_free_wildcard_filter_bytecode(struct session_wildcard *wildcard);
+void lttng_free_event_filter_runtime(struct ltt_event *event);
 
 #endif /* _LTTNG_UST_EVENTS_H */