lib: add interrupter API
[babeltrace.git] / src / lib / graph / interrupter.c
1 /*
2 * Copyright (c) 2019 Philippe Proulx <pproulx@efficios.com>
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 */
22
23 #define BT_LOG_TAG "LIB/INTERRUPTER"
24 #include "lib/logging.h"
25
26 #include <stdlib.h>
27 #include <stdint.h>
28 #include <babeltrace2/babeltrace.h>
29
30 #include "interrupter.h"
31 #include "lib/assert-pre.h"
32
33 static
34 void destroy_interrupter(struct bt_object *obj)
35 {
36 g_free(obj);
37 }
38
39 extern struct bt_interrupter *bt_interrupter_create(void)
40 {
41 struct bt_interrupter *intr = g_new0(struct bt_interrupter, 1);
42
43 if (!intr) {
44 BT_LIB_LOGE_APPEND_CAUSE("Failed to allocate one interrupter.");
45 goto error;
46 }
47
48 bt_object_init_shared(&intr->base, destroy_interrupter);
49 goto end;
50
51 error:
52 BT_OBJECT_PUT_REF_AND_RESET(intr);
53
54 end:
55 return intr;
56 }
57
58 void bt_interrupter_set(struct bt_interrupter *intr)
59 {
60 BT_ASSERT_PRE_NON_NULL(intr, "Interrupter");
61 intr->is_set = true;
62 }
63
64 void bt_interrupter_reset(struct bt_interrupter *intr)
65 {
66 BT_ASSERT_PRE_NON_NULL(intr, "Interrupter");
67 intr->is_set = false;
68 }
69
70 bt_bool bt_interrupter_is_set(const struct bt_interrupter *intr)
71 {
72 BT_ASSERT_PRE_NON_NULL(intr, "Interrupter");
73 return (bt_bool) intr->is_set;
74 }
75
76 void bt_interrupter_get_ref(const struct bt_interrupter *intr)
77 {
78 bt_object_get_ref(intr);
79 }
80
81 void bt_interrupter_put_ref(const struct bt_interrupter *intr)
82 {
83 bt_object_put_ref(intr);
84 }
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