X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=include%2Flttng%2Fevents-internal.h;h=38ae3a7b702450833c583b9b2fdd2c9a9edbb983;hb=b8b4704b8508da42ffcef26770b44642005695e6;hp=0c7628483271c06c0b012444371bbaced4e100a8;hpb=437d5aa59380583ce1cd14d394a53b398be1275d;p=lttng-modules.git

diff --git a/include/lttng/events-internal.h b/include/lttng/events-internal.h
index 0c762848..38ae3a7b 100644
--- a/include/lttng/events-internal.h
+++ b/include/lttng/events-internal.h
@@ -10,6 +10,107 @@
 
 #include <lttng/events.h>
 
+struct lttng_kernel_event_common_private {
+	struct lttng_kernel_event_common *pub;		/* Public event interface */
+
+	const struct lttng_kernel_event_desc *desc;
+	/* Backward references: list of lttng_enabler_ref (ref to enablers) */
+	struct 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_bytecode_runtime, sorted by seqnum */
+	struct list_head filter_bytecode_runtime_head;
+	enum lttng_kernel_abi_instrumentation instrumentation;
+	/* Selected by instrumentation */
+	union {
+		struct lttng_kprobe kprobe;
+		struct lttng_uprobe uprobe;
+		struct {
+			struct lttng_krp *lttng_krp;
+			char *symbol_name;
+		} kretprobe;
+		struct {
+			enum lttng_syscall_entryexit entryexit;
+			enum lttng_syscall_abi abi;
+			struct hlist_node node;			/* chain registered syscall event_notifier */
+			unsigned int syscall_id;
+		} syscall;
+	} u;
+};
+
+struct lttng_kernel_event_recorder_private {
+	struct lttng_kernel_event_common_private parent;
+
+	struct lttng_kernel_event_recorder *pub;	/* Public event interface */
+	struct list_head node;				/* Event recorder list */
+	struct hlist_node hlist;			/* Hash table of event recorders */
+	struct lttng_kernel_ctx *ctx;
+	unsigned int id;
+	unsigned int metadata_dumped:1;
+};
+
+struct lttng_kernel_event_notifier_private {
+	struct lttng_kernel_event_common_private parent;
+
+	struct lttng_kernel_event_notifier *pub;	/* Public event notifier interface */
+	struct lttng_event_notifier_group *group;	/* weak ref */
+	size_t num_captures;				/* Needed to allocate the msgpack array. */
+	uint64_t error_counter_index;
+	struct list_head node;				/* Event notifier list */
+	struct hlist_node hlist;			/* Hash table of event notifiers */
+	struct list_head capture_bytecode_runtime_head;
+
+};
+
+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)
 {
@@ -84,4 +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 */