Refactoring and fix: bytecode ABI

[lttng-ust.git] / liblttng-ust / ust-events-internal.h

diff --git a/liblttng-ust/ust-events-internal.h b/liblttng-ust/ust-events-internal.h
index 4e73e3e3e783c41222be8bd7d13fde16bebc623e..65023b3f8820de423d2c656fbd0393f2d242403a 100644 (file)
--- a/liblttng-ust/ust-events-internal.h
+++ b/liblttng-ust/ust-events-internal.h
@@ -111,6 +111,26 @@ struct lttng_ust_bytecode_node {
        } bc;
 };
 
+/*
+ * Bytecode interpreter return value.
+ */
+enum lttng_ust_bytecode_interpreter_ret {
+       LTTNG_UST_BYTECODE_INTERPRETER_ERROR = -1,
+       LTTNG_UST_BYTECODE_INTERPRETER_OK = 0,
+};
+
+struct lttng_interpreter_output;
+struct lttng_ust_bytecode_runtime_private;
+
+enum lttng_ust_bytecode_filter_result {
+       LTTNG_UST_BYTECODE_FILTER_ACCEPT = 0,
+       LTTNG_UST_BYTECODE_FILTER_REJECT = 1,
+};
+
+struct lttng_ust_bytecode_filter_ctx {
+       enum lttng_ust_bytecode_filter_result result;
+};
+
 struct lttng_ust_excluder_node {
        struct cds_list_head node;
        struct lttng_enabler *enabler;
@@ -250,6 +270,10 @@ struct lttng_ust_event_common_private {
        struct cds_list_head enablers_ref_head;
        int registered;                 /* has reg'd tracepoint probe */
        uint64_t user_token;
+
+       int has_enablers_without_filter_bytecode;
+       /* list of struct lttng_ust_bytecode_runtime, sorted by seqnum */
+       struct cds_list_head filter_bytecode_runtime_head;
 };
 
 struct lttng_ust_event_recorder_private {
@@ -270,14 +294,18 @@ struct lttng_ust_event_notifier_private {
        uint64_t error_counter_index;
        struct cds_list_head node;              /* Event notifier list */
        struct cds_hlist_node hlist;            /* Hash table of event notifiers */
-};
+       struct cds_list_head capture_bytecode_runtime_head;
 
-struct lttng_ust_bytecode_runtime_private {
-       struct bytecode_runtime *pub;   /* Public bytecode runtime interface */
+};
 
+struct lttng_ust_bytecode_runtime {
        enum lttng_ust_bytecode_type type;
        struct lttng_ust_bytecode_node *bc;
        int link_failed;
+       int (*interpreter_func)(struct lttng_ust_bytecode_runtime *bytecode_runtime,
+                       const char *interpreter_stack_data,
+                       void *ctx);
+       struct cds_list_head node;      /* list of bytecode runtime in event */
        /*
         * Pointer to a URCU-protected pointer owned by an `struct
         * lttng_session`or `struct lttng_event_notifier_group`.
@@ -864,4 +892,9 @@ struct lttng_ust_channel_buffer *lttng_ust_alloc_channel_buffer(void);
 __attribute__((visibility("hidden")))
 void lttng_ust_free_channel_common(struct lttng_ust_channel_common *chan);
 
+__attribute__((visibility("hidden")))
+int lttng_ust_interpret_event_filter(struct lttng_ust_event_common *event,
+               const char *interpreter_stack_data,
+               void *filter_ctx);
+
 #endif /* _LTTNG_UST_EVENTS_INTERNAL_H */