Fix: src.ctf.lttng-live: emitting stream end msg with no stream
[babeltrace.git] / include / babeltrace2 / graph / port-const.h
1 #ifndef BABELTRACE2_GRAPH_PORT_CONST_H
2 #define BABELTRACE2_GRAPH_PORT_CONST_H
3
4 /*
5 * Copyright (c) 2010-2019 EfficiOS Inc. and Linux Foundation
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 #ifndef __BT_IN_BABELTRACE_H
27 # error "Please include <babeltrace2/babeltrace.h> instead."
28 #endif
29
30 #include <stdint.h>
31
32 #include <babeltrace2/types.h>
33
34 #ifdef __cplusplus
35 extern "C" {
36 #endif
37
38 typedef enum bt_port_type {
39 BT_PORT_TYPE_INPUT = 1 << 0,
40 BT_PORT_TYPE_OUTPUT = 1 << 1,
41 } bt_port_type;
42
43 extern const char *bt_port_get_name(const bt_port *port);
44
45 extern bt_port_type bt_port_get_type(const bt_port *port);
46
47 extern const bt_connection *bt_port_borrow_connection_const(
48 const bt_port *port);
49
50 extern const bt_component *bt_port_borrow_component_const(
51 const bt_port *port);
52
53 extern bt_bool bt_port_is_connected(const bt_port *port);
54
55 static inline
56 bt_bool bt_port_is_input(const bt_port *port)
57 {
58 return bt_port_get_type(port) == BT_PORT_TYPE_INPUT;
59 }
60
61 static inline
62 bt_bool bt_port_is_output(const bt_port *port)
63 {
64 return bt_port_get_type(port) == BT_PORT_TYPE_OUTPUT;
65 }
66
67 extern void bt_port_get_ref(const bt_port *port);
68
69 extern void bt_port_put_ref(const bt_port *port);
70
71 #define BT_PORT_PUT_REF_AND_RESET(_var) \
72 do { \
73 bt_port_put_ref(_var); \
74 (_var) = NULL; \
75 } while (0)
76
77 #define BT_PORT_MOVE_REF(_var_dst, _var_src) \
78 do { \
79 bt_port_put_ref(_var_dst); \
80 (_var_dst) = (_var_src); \
81 (_var_src) = NULL; \
82 } while (0)
83
84 #ifdef __cplusplus
85 }
86 #endif
87
88 #endif /* BABELTRACE2_GRAPH_PORT_CONST_H */
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