X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=include%2Fbabeltrace%2Fctf-ir%2Fstream-internal.h;h=a54cd57b49924b9c77eb54b3b0ff1df7d0652139;hb=3230ee6b4f3a704958b761daecae835c56938bc9;hp=0e0e2498b4d43bf40c0303074a16cb845885b060;hpb=0686ef9496b70a2b1e401375ca6ffd529c4b2a34;p=babeltrace.git

diff --git a/include/babeltrace/ctf-ir/stream-internal.h b/include/babeltrace/ctf-ir/stream-internal.h
index 0e0e2498..a54cd57b 100644
--- a/include/babeltrace/ctf-ir/stream-internal.h
+++ b/include/babeltrace/ctf-ir/stream-internal.h
@@ -32,10 +32,21 @@
 #include <babeltrace/ctf-writer/clock.h>
 #include <babeltrace/ctf-writer/event-fields.h>
 #include <babeltrace/ctf-writer/event-types.h>
+#include <babeltrace/ctf-writer/serialize-internal.h>
 #include <babeltrace/babeltrace-internal.h>
-#include <babeltrace/ctf/types.h>
 #include <glib.h>
 
+struct bt_port;
+struct bt_component;
+
+typedef void (*bt_ctf_stream_destroy_listener_func)(
+		struct bt_ctf_stream *stream, void *data);
+
+struct bt_ctf_stream_destroy_listener {
+	bt_ctf_stream_destroy_listener_func func;
+	void *data;
+};
+
 struct bt_ctf_stream {
 	struct bt_object base;
 	uint32_t id;
@@ -44,15 +55,55 @@ struct bt_ctf_stream {
 	struct bt_ctf_field *packet_header;
 	struct bt_ctf_field *packet_context;
 
+	/*
+	 * When a notification which contains a reference to a stream
+	 * object (event notification, for example) is returned by the
+	 * "next" method of a sink or filter component's notification
+	 * iterator, it must NOT be returned by the "next" method of a
+	 * notification iterator which iterates on the notifications of
+	 * another output port of the same component.
+	 *
+	 * To ensure this, the stream object keeps a hash table which
+	 * indicates which port, for a given component, is currently
+	 * allowed to emit notifications which contain a reference to
+	 * this stream.
+	 *
+	 * This is a `struct bt_component *` to `struct bt_port *` hash
+	 * table. Both pointers are weak references because there's no
+	 * need to keep one or the other alive as far as this stream is
+	 * concerned.
+	 */
+	GHashTable *comp_cur_port;
+
 	/* Writer-specific members. */
 	/* Array of pointers to bt_ctf_event for the current packet */
 	GPtrArray *events;
-	struct ctf_stream_pos pos;
+	struct bt_ctf_stream_pos pos;
 	unsigned int flushed_packet_count;
 	uint64_t size;
+
+	/* Array of struct bt_ctf_stream_destroy_listener */
+	GArray *destroy_listeners;
 };
 
 BT_HIDDEN
 int bt_ctf_stream_set_fd(struct bt_ctf_stream *stream, int fd);
 
+BT_HIDDEN
+void bt_ctf_stream_map_component_to_port(struct bt_ctf_stream *stream,
+		struct bt_component *comp,
+		struct bt_port *port);
+
+BT_HIDDEN
+struct bt_port *bt_ctf_stream_port_for_component(struct bt_ctf_stream *stream,
+		struct bt_component *comp);
+
+BT_HIDDEN
+void bt_ctf_stream_add_destroy_listener(struct bt_ctf_stream *stream,
+		bt_ctf_stream_destroy_listener_func func, void *data);
+
+BT_HIDDEN
+void bt_ctf_stream_remove_destroy_listener(struct bt_ctf_stream *stream,
+		bt_ctf_stream_destroy_listener_func func, void *data);
+
 #endif /* BABELTRACE_CTF_WRITER_STREAM_INTERNAL_H */