X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=include%2Fbabeltrace%2Fctf-ir%2Fstream-internal.h;h=a54cd57b49924b9c77eb54b3b0ff1df7d0652139;hb=3230ee6b4f3a704958b761daecae835c56938bc9;hp=7461d321f0fe34c85c67a9898dd04fd29a25da8a;hpb=5fd2e9fda6185e989583e6e61b9312683149747e;p=babeltrace.git

diff --git a/include/babeltrace/ctf-ir/stream-internal.h b/include/babeltrace/ctf-ir/stream-internal.h
index 7461d321..a54cd57b 100644
--- a/include/babeltrace/ctf-ir/stream-internal.h
+++ b/include/babeltrace/ctf-ir/stream-internal.h
@@ -32,31 +32,78 @@
 #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;
 	struct bt_ctf_stream_class *stream_class;
+	GString *name;
+	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;
-	struct bt_ctf_field *packet_header;
-	struct bt_ctf_field *packet_context;
-	struct bt_ctf_field *event_header;
-	struct bt_ctf_field *event_context;
+	uint64_t size;
+
+	/* Array of struct bt_ctf_stream_destroy_listener */
+	GArray *destroy_listeners;
 };
 
-/* Stream class should be frozen by the caller after creating a stream */
 BT_HIDDEN
-struct bt_ctf_stream *bt_ctf_stream_create(
-		struct bt_ctf_stream_class *stream_class,
-		struct bt_ctf_trace *trace);
+int bt_ctf_stream_set_fd(struct bt_ctf_stream *stream, int fd);
 
 BT_HIDDEN
-int bt_ctf_stream_set_fd(struct bt_ctf_stream *stream, int fd);
+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 */