lib: move `bt_value` structures to `value-internal.h`
[babeltrace.git] / include / babeltrace / graph / port-output-message-iterator.h
1 #ifndef BABELTRACE_GRAPH_PORT_OUTPUT_MESSAGE_ITERATOR_H
2 #define BABELTRACE_GRAPH_PORT_OUTPUT_MESSAGE_ITERATOR_H
3
4 /*
5 * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE.
24 */
25
26 #include <stdint.h>
27
28 /* For bt_message_iterator_status */
29 #include <babeltrace/graph/message-iterator-const.h>
30
31 /*
32 * For bt_port, bt_message, bt_message_iterator,
33 * bt_port_output_message_iterator, bt_graph, bt_port_output,
34 * bt_message_array_const, bt_bool, __BT_UPCAST
35 */
36 #include <babeltrace/types.h>
37
38 #ifdef __cplusplus
39 extern "C" {
40 #endif
41
42 static inline
43 bt_message_iterator *
44 bt_port_output_message_iterator_as_message_iterator(
45 bt_port_output_message_iterator *iterator)
46 {
47 return __BT_UPCAST(bt_message_iterator, iterator);
48 }
49
50 extern bt_port_output_message_iterator *
51 bt_port_output_message_iterator_create(
52 bt_graph *graph,
53 const bt_port_output *output_port);
54
55 extern bt_message_iterator_status
56 bt_port_output_message_iterator_next(
57 bt_port_output_message_iterator *iterator,
58 bt_message_array_const *msgs, uint64_t *count);
59
60 extern bt_bool bt_port_output_message_iterator_can_seek_ns_from_origin(
61 bt_port_output_message_iterator *iterator,
62 int64_t ns_from_origin);
63
64 extern bt_bool bt_port_output_message_iterator_can_seek_beginning(
65 bt_port_output_message_iterator *iterator);
66
67 extern bt_message_iterator_status
68 bt_port_output_message_iterator_seek_ns_from_origin(
69 bt_port_output_message_iterator *iterator,
70 int64_t ns_from_origin);
71
72 extern bt_message_iterator_status
73 bt_port_output_message_iterator_seek_beginning(
74 bt_port_output_message_iterator *iterator);
75
76 extern void bt_port_output_message_iterator_get_ref(
77 const bt_port_output_message_iterator *port_output_message_iterator);
78
79 extern void bt_port_output_message_iterator_put_ref(
80 const bt_port_output_message_iterator *port_output_message_iterator);
81
82 #define BT_PORT_OUTPUT_MESSAGE_ITERATOR_PUT_REF_AND_RESET(_var) \
83 do { \
84 bt_port_output_message_iterator_put_ref(_var); \
85 (_var) = NULL; \
86 } while (0)
87
88 #define BT_PORT_OUTPUT_MESSAGE_ITERATOR_MOVE_REF(_var_dst, _var_src) \
89 do { \
90 bt_port_output_message_iterator_put_ref(_var_dst); \
91 (_var_dst) = (_var_src); \
92 (_var_src) = NULL; \
93 } while (0)
94
95 #ifdef __cplusplus
96 }
97 #endif
98
99 #endif /* BABELTRACE_GRAPH_PORT_OUTPUT_MESSAGE_ITERATOR_H */
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