1 #ifndef BABELTRACE_CTF_WRITER_STREAM_INTERNAL_H
2 #define BABELTRACE_CTF_WRITER_STREAM_INTERNAL_H
5 * BabelTrace - CTF Writer: Stream internal
7 * Copyright 2013, 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com>
9 * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
11 * Permission is hereby granted, free of charge, to any person obtaining a copy
12 * of this software and associated documentation files (the "Software"), to deal
13 * in the Software without restriction, including without limitation the rights
14 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
15 * copies of the Software, and to permit persons to whom the Software is
16 * furnished to do so, subject to the following conditions:
18 * The above copyright notice and this permission notice shall be included in
19 * all copies or substantial portions of the Software.
21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
22 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
24 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
25 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
26 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 #include <babeltrace/ctf-ir/stream.h>
31 #include <babeltrace/object-internal.h>
32 #include <babeltrace/ctf-writer/clock.h>
33 #include <babeltrace/ctf-writer/event-fields.h>
34 #include <babeltrace/ctf-writer/event-types.h>
35 #include <babeltrace/ctf-writer/serialize-internal.h>
36 #include <babeltrace/babeltrace-internal.h>
37 #include <babeltrace/assert-internal.h>
43 typedef void (*bt_stream_destroy_listener_func
)(
44 struct bt_stream
*stream
, void *data
);
46 struct bt_stream_destroy_listener
{
47 bt_stream_destroy_listener_func func
;
52 struct bt_object base
;
54 struct bt_stream_class
*stream_class
;
56 struct bt_field
*packet_header
;
57 struct bt_field
*packet_context
;
60 * When a notification which contains a reference to a stream
61 * object (event notification, for example) is returned by the
62 * "next" method of a sink or filter component's notification
63 * iterator, it must NOT be returned by the "next" method of a
64 * notification iterator which iterates on the notifications of
65 * another output port of the same component.
67 * To ensure this, the stream object keeps a hash table which
68 * indicates which port, for a given component, is currently
69 * allowed to emit notifications which contain a reference to
72 * This is a `struct bt_component *` to `struct bt_port *` hash
73 * table. Both pointers are weak references because there's no
74 * need to keep one or the other alive as far as this stream is
77 GHashTable
*comp_cur_port
;
79 /* Writer-specific members. */
80 /* Array of pointers to bt_event for the current packet */
82 struct bt_stream_pos pos
;
83 unsigned int flushed_packet_count
;
84 uint64_t discarded_events
;
88 /* Array of struct bt_stream_destroy_listener */
89 GArray
*destroy_listeners
;
93 int bt_stream_set_fd(struct bt_stream
*stream
, int fd
);
96 void bt_stream_map_component_to_port(struct bt_stream
*stream
,
97 struct bt_component
*comp
,
98 struct bt_port
*port
);
101 struct bt_port
*bt_stream_port_for_component(struct bt_stream
*stream
,
102 struct bt_component
*comp
);
105 void bt_stream_add_destroy_listener(struct bt_stream
*stream
,
106 bt_stream_destroy_listener_func func
, void *data
);
109 void bt_stream_remove_destroy_listener(struct bt_stream
*stream
,
110 bt_stream_destroy_listener_func func
, void *data
);
113 struct bt_stream_class
*bt_stream_borrow_stream_class(
114 struct bt_stream
*stream
)
117 return stream
->stream_class
;
120 #endif /* BABELTRACE_CTF_WRITER_STREAM_INTERNAL_H */