Move enabler structures to internal header

[lttng-modules.git] / include / lttng / events-internal.h

diff --git a/include/lttng/events-internal.h b/include/lttng/events-internal.h
index 30cf4adc8bab62723421c77cdb2c0c872c8de2ec..38ae3a7b702450833c583b9b2fdd2c9a9edbb983 100644 (file)
--- a/include/lttng/events-internal.h
+++ b/include/lttng/events-internal.h
@@ -20,7 +20,7 @@ struct lttng_kernel_event_common_private {
        uint64_t user_token;
 
        int has_enablers_without_filter_bytecode;
-       /* list of struct lttng_kernel_bytecode_runtime, sorted by seqnum */
+       /* list of struct lttng_bytecode_runtime, sorted by seqnum */
        struct list_head filter_bytecode_runtime_head;
        enum lttng_kernel_abi_instrumentation instrumentation;
        /* Selected by instrumentation */
@@ -64,6 +64,53 @@ struct lttng_kernel_event_notifier_private {
 
 };
 
+enum lttng_kernel_bytecode_interpreter_ret {
+       LTTNG_KERNEL_BYTECODE_INTERPRETER_ERROR = -1,
+       LTTNG_KERNEL_BYTECODE_INTERPRETER_OK = 0,
+};
+
+enum lttng_kernel_bytecode_filter_result {
+       LTTNG_KERNEL_BYTECODE_FILTER_ACCEPT = 0,
+       LTTNG_KERNEL_BYTECODE_FILTER_REJECT = 1,
+};
+
+struct lttng_kernel_bytecode_filter_ctx {
+       enum lttng_kernel_bytecode_filter_result result;
+};
+
+/*
+ * Enabler field, within whatever object is enabling an event. Target of
+ * backward reference.
+ */
+struct lttng_enabler {
+       enum lttng_enabler_format_type format_type;
+
+       /* head list of struct lttng_bytecode_node */
+       struct list_head filter_bytecode_head;
+
+       struct lttng_kernel_abi_event event_param;
+       unsigned int enabled:1;
+
+       uint64_t user_token;            /* User-provided token. */
+};
+
+struct lttng_event_enabler {
+       struct lttng_enabler base;
+       struct list_head node;  /* per-session list of enablers */
+       struct lttng_channel *chan;
+};
+
+struct lttng_event_notifier_enabler {
+       struct lttng_enabler base;
+       uint64_t error_counter_index;
+       struct list_head node;  /* List of event_notifier enablers */
+       struct lttng_event_notifier_group *group;
+
+       /* head list of struct lttng_bytecode_node */
+       struct list_head capture_bytecode_head;
+       uint64_t num_captures;
+};
+
 static inline
 const struct lttng_kernel_type_integer *lttng_kernel_get_type_integer(const struct lttng_kernel_type_common *type)
 {
@@ -138,4 +185,23 @@ static inline bool lttng_kernel_type_is_bytewise_integer(const struct lttng_kern
        return true;
 }
 
+int lttng_kernel_interpret_event_filter(const struct lttng_kernel_event_common *event,
+               const char *interpreter_stack_data,
+               struct lttng_probe_ctx *probe_ctx,
+               void *event_filter_ctx);
+
+static inline
+struct lttng_enabler *lttng_event_enabler_as_enabler(
+               struct lttng_event_enabler *event_enabler)
+{
+       return &event_enabler->base;
+}
+
+static inline
+struct lttng_enabler *lttng_event_notifier_enabler_as_enabler(
+               struct lttng_event_notifier_enabler *event_notifier_enabler)
+{
+       return &event_notifier_enabler->base;
+}
+
 #endif /* _LTTNG_EVENTS_INTERNAL_H */