X-Git-Url: http://git.efficios.com/?p=babeltrace.git;a=blobdiff_plain;f=include%2Fbabeltrace%2Fctf-ir%2Fpacket-internal.h;fp=include%2Fbabeltrace%2Fctf-ir%2Fpacket-internal.h;h=759c371a38849e023f0c12d72f94c6a9eff6c202;hp=206215bf4ca2eb558ace535d6fcb073da378829e;hb=ccf8299313561a76a88583d047d61890c6ed1d8a;hpb=35244b4cee8cb8a2b592d18ec00f10efc3508df4

diff --git a/include/babeltrace/ctf-ir/packet-internal.h b/include/babeltrace/ctf-ir/packet-internal.h
index 206215bf..759c371a 100644
--- a/include/babeltrace/ctf-ir/packet-internal.h
+++ b/include/babeltrace/ctf-ir/packet-internal.h
@@ -25,7 +25,9 @@
  * SOFTWARE.
  */
 
+#include <stdbool.h>
 #include <babeltrace/assert-internal.h>
+#include <babeltrace/ctf-ir/packet.h>
 #include <babeltrace/ctf-ir/fields.h>
 #include <babeltrace/ctf-ir/stream.h>
 #include <babeltrace/ctf-ir/field-wrapper-internal.h>
@@ -33,6 +35,11 @@
 #include <babeltrace/babeltrace-internal.h>
 #include <babeltrace/ctf-ir/clock-value-set-internal.h>
 
+struct bt_packet_prop_uint64 {
+	enum bt_packet_property_availability avail;
+	uint64_t value;
+};
+
 struct bt_packet {
 	struct bt_object base;
 	struct bt_field_wrapper *header;
@@ -40,6 +47,33 @@ struct bt_packet {
 	struct bt_stream *stream;
 	struct bt_clock_value_set begin_cv_set;
 	struct bt_clock_value_set end_cv_set;
+	struct bt_packet_prop_uint64 discarded_event_counter;
+	struct bt_packet_prop_uint64 seq_num;
+	struct bt_packet_prop_uint64 discarded_event_count;
+	struct bt_packet_prop_uint64 discarded_packet_count;
+	bool props_are_set;
+
+	struct {
+		/*
+		 * We keep this here to avoid keeping a reference on the
+		 * previous packet object: those properties are
+		 * snapshots of the previous packet's properties when
+		 * calling bt_packet_create(). We know that the previous
+		 * packet's properties do not change afterwards because
+		 * we freeze the previous packet when bt_packet_create()
+		 * is successful.
+		 */
+		enum bt_packet_previous_packet_availability avail;
+		struct bt_packet_prop_uint64 discarded_event_counter;
+		struct bt_packet_prop_uint64 seq_num;
+		struct {
+			enum bt_packet_property_availability avail;
+
+			/* Owned by this (copy of previous packet's or NULL) */
+			struct bt_clock_value *cv;
+		} default_end_cv;
+	} prev_packet_info;
+
 	int frozen;
 };
 
@@ -61,4 +95,30 @@ void bt_packet_recycle(struct bt_packet *packet);
 BT_HIDDEN
 void bt_packet_destroy(struct bt_packet *packet);
 
+/*
+ * Sets a packet's properties using its current context fields and its
+ * previous packet's snapshotted properties (if any). The packet context
+ * field must not be modified until the packet is recycled.
+ *
+ * This function does NOT set the `props_are_set` flag (does not
+ * validate the properties): call bt_packet_validate_properties() to
+ * mark the properties as definitely cached.
+ */
+BT_HIDDEN
+int bt_packet_set_properties(struct bt_packet *packet);
+
+static inline
+void bt_packet_invalidate_properties(struct bt_packet *packet)
+{
+	BT_ASSERT(packet);
+	packet->props_are_set = false;
+}
+
+static inline
+void bt_packet_validate_properties(struct bt_packet *packet)
+{
+	BT_ASSERT(packet);
+	packet->props_are_set = true;
+}
+
 #endif /* BABELTRACE_CTF_IR_PACKET_INTERNAL_H */