* http://www.efficios.com/ctf
*/
-/* For bt_get() */
-#include <babeltrace/ref.h>
-
-/* For bt_bool */
-#include <babeltrace/types.h>
-
#include <stdint.h>
#include <stddef.h>
+/* For enum bt_clock_value_status */
+#include <babeltrace/ctf-ir/clock-value.h>
+
#ifdef __cplusplus
extern "C" {
#endif
-struct bt_value;
-struct bt_clock_class;
-
-/**
-@defgroup ctfirevent CTF IR event
-@ingroup ctfir
-@brief CTF IR event.
-
-@code
-#include <babeltrace/ctf-ir/event.h>
-@endcode
-
-A CTF IR <strong><em>event</em></strong> is a container of event
-fields:
-
-- <strong>Stream event header</strong> field, described by the
- <em>stream event header field type</em> of a
- \link ctfirstreamclass CTF IR stream class\endlink.
-- <strong>Stream event context</strong> field, described by the
- <em>stream event context field type</em> of a stream class.
-- <strong>Event context</strong> field, described by the
- <em>event context field type</em> of a
- \link ctfireventclass CTF IR event class\endlink.
-- <strong>Event payload</strong>, described by the
- <em>event payload field type</em> of an event class.
-
-As a reminder, here's the structure of a CTF packet:
-
-@imgpacketstructure
-
-You can create a CTF IR event \em from a
-\link ctfireventclass CTF IR event class\endlink with
-bt_event_create(). The event class you use to create an event
-object becomes its parent.
-
-If the \link ctfirtraceclass CTF IR trace class\endlink of an event
-object (parent of its \link ctfirstreamclass CTF IR stream class\endlink,
-which is the parent of its event class) was created by a
-\link ctfwriter CTF writer\endlink object, then the only possible
-action you can do with this event object is to append it to a
-\link ctfirstream CTF IR stream\endlink with
-bt_stream_append_event(). Otherwise, you can create an event
-notification with bt_notification_event_create(). The event you pass
-to this function \em must have an attached packet object first.
-
-You can attach a \link ctfirpacket CTF IR packet object\endlink to an
-event object with bt_event_set_packet().
-
-A CTF IR event has a mapping of
-\link ctfirclockvalue CTF IR clock values\endlink. A clock value is
-an instance of a specific
-\link ctfirclockclass CTF IR clock class\endlink when the event is
-emitted. You can set an event object's clock value with
-bt_event_set_clock_value().
-
-As with any Babeltrace object, CTF IR event objects have
-<a href="https://en.wikipedia.org/wiki/Reference_counting">reference
-counts</a>. See \ref refs to learn more about the reference counting
-management of Babeltrace objects.
-
-bt_notification_event_create() \em freezes its event parameter on
-success. You cannot modify a frozen event object: it is considered
-immutable, except for \link refs reference counting\endlink.
-
-@sa ctfireventclass
-@sa ctfirpacket
-
-@file
-@brief CTF IR event type and functions.
-@sa ctfirevent
-
-@addtogroup ctfirevent
-@{
-*/
-
-/**
-@struct bt_event
-@brief A CTF IR event.
-@sa ctfirevent
-*/
struct bt_event;
struct bt_event_header_field;
-struct bt_clock;
struct bt_clock_value;
struct bt_event_class;
struct bt_field;
-struct bt_field_type;
-struct bt_stream_class;
struct bt_packet;
-/**
-@name Creation and parent access functions
-@{
-*/
-
-/**
-@brief Creates a default CTF IR event from the CTF IR event class
- \p event_class.
-
-\p event_class \em must have a parent
-\link ctfirstreamclass CTF IR stream class\endlink.
-
-On success, the four fields of the created event object are not set. You
-can set them with bt_event_set_header(),
-bt_event_set_stream_event_context(),
-bt_event_set_context(), and bt_event_set_payload().
-
-This function tries to resolve the needed
-\link ctfirfieldtypes CTF IR field type\endlink of the dynamic field
-types that are found anywhere in the context or payload field
-types of \p event_class and in the root field types of the
-parent stream class of \p event_class. If any automatic resolving fails,
-this function fails. This means that, if any dynamic field type need
-a field type which should be found in the trace packet header root
-field type, and if the parent stream class of \p event_class was not
-added to a \link ctfirtraceclass CTF IR trace class\endlink yet
-with bt_trace_add_stream_class(), then this function fails.
-
-@param[in] event_class CTF IR event class to use to create the
- CTF IR event.
-@returns Created event object, or \c NULL on error.
-
-@prenotnull{event_class}
-@pre \p event_class has a parent stream class.
-@postsuccessrefcountret1
-*/
extern struct bt_event_class *bt_event_borrow_class(struct bt_event *event);
-/**
-@brief Returns the parent CTF IR event class of the CTF IR event
- \p event.
-
-This function returns a reference to the event class which was used to
-create the event object in the first place with bt_event_create().
-
-@param[in] event Event of which to get the parent event class.
-@returns Parent event class of \p event,
- or \c NULL on error.
-
-@prenotnull{event}
-@postrefcountsame{event}
-@postsuccessrefcountretinc
-*/
-static inline
-struct bt_event_class *bt_event_get_class(struct bt_event *event)
-{
- return bt_get(bt_event_borrow_class(event));
-}
-
extern struct bt_packet *bt_event_borrow_packet(struct bt_event *event);
-/**
-@brief Returns the CTF IR packet associated to the CTF IR event
- \p event.
-
-This function returns a reference to the event class which was set to
-\p event in the first place with bt_event_set_packet().
-
-@param[in] event Event of which to get the associated packet.
-@returns Packet associated to \p event,
- or \c NULL if no packet is associated to
- \p event or on error.
-
-@prenotnull{event}
-@postrefcountsame{event}
-@postsuccessrefcountretinc
-
-@sa bt_event_set_packet(): Associates a given event to a given
- packet.
-*/
-static inline
-struct bt_packet *bt_event_get_packet(struct bt_event *event)
-{
- return bt_get(bt_event_borrow_packet(event));
-}
-
extern struct bt_stream *bt_event_borrow_stream(struct bt_event *event);
-/**
-@brief Returns the parent CTF IR stream associated to the CTF IR event
- \p event.
-
-@param[in] event Event of which to get the parent stream.
-@returns Parent stream of \p event, or \c NULL on error.
-
-@prenotnull{event}
-@postrefcountsame{event}
-@postsuccessrefcountretinc
-*/
-static inline
-struct bt_stream *bt_event_get_stream(struct bt_event *event)
-{
- return bt_get(bt_event_borrow_stream(event));
-}
-
-/** @} */
-
-/**
-@name Contained fields functions
-@{
-*/
-
-extern struct bt_field *bt_event_borrow_header(struct bt_event *event);
+extern struct bt_field *bt_event_borrow_header_field(struct bt_event *event);
extern int bt_event_move_header(struct bt_event *event,
struct bt_event_header_field *header);
-extern struct bt_field *bt_event_borrow_stream_event_context(
+extern struct bt_field *bt_event_borrow_common_context_field(
struct bt_event *event);
-extern struct bt_field *bt_event_borrow_context(struct bt_event *event);
-
-extern struct bt_field *bt_event_borrow_payload(struct bt_event *event);
-
-/** @} */
-
-/**
-@name Clock value functions
-@{
-*/
-
-extern int bt_event_set_clock_value(struct bt_event *event,
- struct bt_clock_class *clock_class, uint64_t raw_value,
- bt_bool is_default);
-
-extern struct bt_clock_value *bt_event_borrow_default_clock_value(
+extern struct bt_field *bt_event_borrow_specific_context_field(
struct bt_event *event);
-/** @} */
+extern struct bt_field *bt_event_borrow_payload_field(struct bt_event *event);
+
+extern int bt_event_set_default_clock_value(struct bt_event *event,
+ uint64_t value_cycles);
-/** @} */
+extern enum bt_clock_value_status bt_event_borrow_default_clock_value(
+ struct bt_event *event, struct bt_clock_value **clock_value);
#ifdef __cplusplus
}
projects / babeltrace.git / blobdiff