X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=include%2Flttng%2Fevent-internal.h;h=52f7f7857981c3b684fd6946b845bf2f54068284;hb=4878de5c7deb512bbdac4fdfc498907efa06fb7c;hp=7370d0510730eb77d4f039bd62c828c911c5c47c;hpb=7966af5763c4aaca39df9bbfa9277ff15715c720;p=lttng-tools.git

diff --git a/include/lttng/event-internal.h b/include/lttng/event-internal.h
index 7370d0510..52f7f7857 100644
--- a/include/lttng/event-internal.h
+++ b/include/lttng/event-internal.h
@@ -14,12 +14,126 @@
 
 #include <common/macros.h>
 #include <lttng/event.h>
+#include <lttng/lttng-error.h>
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
+struct lttng_event_exclusion;
 struct lttng_userspace_probe_location;
+struct lttng_dynamic_buffer;
+struct lttng_buffer_view;
+
+struct lttng_event_comm {
+	int8_t event_type;
+	int8_t loglevel_type;
+	int32_t loglevel;
+	int8_t enabled;
+	int32_t pid;
+	uint32_t flags;
+
+	/* Payload. */
+	/* Includes terminator `\0`. */
+	uint32_t name_len;
+	uint32_t exclusion_count;
+	/* Includes terminator `\0`. */
+	uint32_t filter_expression_len;
+	uint32_t bytecode_len;
+
+	/* Type specific payload. */
+	uint32_t userspace_probe_location_len;
+	uint32_t lttng_event_probe_attr_len;
+	uint32_t lttng_event_function_attr_len;
+
+	/*
+	 * Contain:
+	 * - name [name_len],
+	 * - exclusions if any
+	 * - char filter_expression[filter_expression_len],
+	 * - unsigned char filter_bytecode[bytecode_len],
+	 * - userspace probe location [userspace_probe_location_len],
+	 * - probe or ftrace based on event type.
+	 */
+
+	char payload[];
+} LTTNG_PACKED;
+
+struct lttng_event_exclusion_comm {
+	/* Includes terminator `\0`. */
+	uint32_t len;
+	char payload [];
+} LTTNG_PACKED;
+
+struct lttng_event_probe_attr_comm {
+	uint64_t addr;
+	uint64_t offset;
+	/* Includes terminator `\0`. */
+	uint32_t symbol_name_len;
+
+	char payload[];
+} LTTNG_PACKED;
+
+struct lttng_event_function_attr_comm {
+	/* Includes terminator `\0`. */
+	uint32_t symbol_name_len;
+
+	char payload[];
+} LTTNG_PACKED;
+
+struct lttng_event_context_comm {
+	uint32_t type;
+	/*
+	 * Depending on the type.
+	 * For:
+	 *  - LTTNG_EVENT_CONTEXT_APP_CONTEXT.
+	 *
+	 *  -> struct lttng_event_context_app_comm
+	 *
+	 * For
+	 *  - LTTNG_EVENT_CONTEXT_PERF_COUNTER,
+	 *  - LTTNG_EVENT_CONTEXT_PERF_CPU_COUNTER,
+	 *  - LTTNG_EVENT_CONTEXT_PERF_THREAD_COUNTER.
+	 *
+	 *  -> struct lttng_event_context_perf_counter_comm
+	 *
+	 *  Other type -> no payload.
+	 */
+	char payload[];
+} LTTNG_PACKED;
+
+struct lttng_event_context_perf_counter_comm {
+	uint32_t type;
+	uint64_t config;
+	/* Includes terminator `\0`. */
+	uint32_t name_len;
+	/*
+	 * char name [name_len]
+	 */
+	char payload[];
+} LTTNG_PACKED;
+
+struct lttng_event_context_app_comm {
+	/* Includes terminator `\0`. */
+	uint32_t provider_name_len;
+	/* Includes terminator `\0`. */
+	uint32_t ctx_name_len;
+	/*
+	 * provider name [provider_name_len]
+	 * ctx name [ctx_name_len]
+	 */
+	char payload[];
+} LTTNG_PACKED;
+
+struct lttng_event_field_comm {
+	uint8_t type;
+	uint8_t nowrite;
+	/* Includes terminator `\0`. */
+	uint32_t name_len;
+	uint32_t event_len;
+
+	/*
+	 * - name [name_len]
+	 * - lttng_event object
+	 */
+	char payload[];
+} LTTNG_PACKED;
 
 struct lttng_event_extended {
 	/*
@@ -39,8 +153,44 @@ struct lttng_event_extended {
 
 struct lttng_event *lttng_event_copy(const struct lttng_event *event);
 
-#ifdef __cplusplus
-}
-#endif
+ssize_t lttng_event_create_from_payload(struct lttng_payload_view *view,
+		struct lttng_event **out_event,
+		struct lttng_event_exclusion **out_exclusion,
+		char **out_filter_expression,
+		struct lttng_bytecode **out_bytecode);
+
+int lttng_event_serialize(const struct lttng_event *event,
+		unsigned int exclusion_count,
+		char **exclusion_list,
+		char *filter_expression,
+		size_t bytecode_len,
+		struct lttng_bytecode *bytecode,
+		struct lttng_payload *payload);
+
+ssize_t lttng_event_context_create_from_payload(
+		struct lttng_payload_view *view,
+		struct lttng_event_context **event_ctx);
+
+int lttng_event_context_serialize(struct lttng_event_context *context,
+		struct lttng_payload *payload);
+
+void lttng_event_context_destroy(struct lttng_event_context *context);
+
+enum lttng_error_code lttng_events_create_and_flatten_from_payload(
+		struct lttng_payload_view *view,
+		unsigned int count,
+		struct lttng_event **events);
+
+ssize_t lttng_event_field_create_from_payload(
+		struct lttng_payload_view *view,
+		struct lttng_event_field **field);
+
+int lttng_event_field_serialize(const struct lttng_event_field *field,
+		struct lttng_payload *payload);
+
+enum lttng_error_code lttng_event_fields_create_and_flatten_from_payload(
+		struct lttng_payload_view *view,
+		unsigned int count,
+		struct lttng_event_field **fields);
 
 #endif /* LTTNG_EVENT_INTERNAL_H */