054d4a4a938cce0e5e1539fbe60adaa9fb9fd3c8
[babeltrace.git] / src / lib / graph / message-iterator-class.c
1 /*
2 * Copyright 2019 EfficiOS, Inc.
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/MESSAGE-ITERATOR-CLASS"
24 #include "lib/logging.h"
25
26 #include "message-iterator-class.h"
27
28 #include "compat/compiler.h"
29 #include "lib/assert-pre.h"
30 #include "lib/func-status.h"
31
32 #define BT_ASSERT_PRE_DEV_MSG_ITER_CLS_HOT(_msg_iter_cls) \
33 BT_ASSERT_PRE_DEV_HOT((_msg_iter_cls), \
34 "Message iterator class", ": %!+I", (_msg_iter_cls))
35
36 BT_HIDDEN
37 void _bt_message_iterator_class_freeze(
38 const struct bt_message_iterator_class *msg_iter_cls)
39 {
40 BT_ASSERT(msg_iter_cls);
41 BT_LIB_LOGD("Freezing message iterator class: %!+I", msg_iter_cls);
42 ((struct bt_message_iterator_class *) msg_iter_cls)->frozen = true;
43 }
44
45 void bt_message_iterator_class_get_ref(
46 const bt_message_iterator_class *message_iterator_class)
47 {
48 bt_object_get_ref(message_iterator_class);
49 }
50
51 void bt_message_iterator_class_put_ref(
52 const bt_message_iterator_class *message_iterator_class)
53 {
54 bt_object_put_ref(message_iterator_class);
55 }
56
57 static
58 void destroy_iterator_class(struct bt_object *obj)
59 {
60 struct bt_message_iterator_class *class;
61
62 BT_ASSERT(obj);
63 class = container_of(obj, struct bt_message_iterator_class, base);
64
65 BT_LIB_LOGI("Destroying message iterator class: %!+I", class);
66
67 g_free(class);
68 }
69
70 struct bt_message_iterator_class *bt_message_iterator_class_create(
71 bt_message_iterator_class_next_method next_method)
72 {
73 struct bt_message_iterator_class *message_iterator_class;
74
75 BT_ASSERT_PRE_NO_ERROR();
76 BT_ASSERT_PRE_NON_NULL(next_method, "Next method");
77 BT_LOGI("Creating message iterator class: next-method-addr=%p",
78 next_method);
79
80 message_iterator_class = g_new0(struct bt_message_iterator_class, 1);
81 if (!message_iterator_class) {
82 BT_LIB_LOGE_APPEND_CAUSE(
83 "Failed to allocate one message iterator class.");
84 goto end;
85 }
86
87 bt_object_init_shared(&message_iterator_class->base, destroy_iterator_class);
88
89 message_iterator_class->methods.next = next_method;
90
91 end:
92 return message_iterator_class;
93 }
94
95 bt_message_iterator_class_set_method_status
96 bt_message_iterator_class_set_initialize_method(
97 bt_message_iterator_class *message_iterator_class,
98 bt_message_iterator_class_initialize_method method)
99 {
100 BT_ASSERT_PRE_NO_ERROR();
101 BT_ASSERT_PRE_NON_NULL(message_iterator_class, "Message iterator class");
102 BT_ASSERT_PRE_NON_NULL(method, "Method");
103 BT_ASSERT_PRE_DEV_MSG_ITER_CLS_HOT(message_iterator_class);
104 message_iterator_class->methods.initialize = method;
105 BT_LIB_LOGD("Set message iterator class's iterator initialization method"
106 ": %!+I", message_iterator_class);
107 return BT_FUNC_STATUS_OK;
108 }
109
110 bt_message_iterator_class_set_method_status
111 bt_message_iterator_class_set_finalize_method(
112 bt_message_iterator_class *message_iterator_class,
113 bt_message_iterator_class_finalize_method method)
114 {
115 BT_ASSERT_PRE_NO_ERROR();
116 BT_ASSERT_PRE_NON_NULL(message_iterator_class, "Message iterator class");
117 BT_ASSERT_PRE_NON_NULL(method, "Method");
118 BT_ASSERT_PRE_DEV_MSG_ITER_CLS_HOT(message_iterator_class);
119 message_iterator_class->methods.finalize = method;
120 BT_LIB_LOGD("Set message iterator class's finalization method"
121 ": %!+I", message_iterator_class);
122 return BT_FUNC_STATUS_OK;
123 }
124
125 bt_message_iterator_class_set_method_status
126 bt_message_iterator_class_set_seek_ns_from_origin_methods(
127 bt_message_iterator_class *message_iterator_class,
128 bt_message_iterator_class_seek_ns_from_origin_method seek_method,
129 bt_message_iterator_class_can_seek_ns_from_origin_method can_seek_method)
130 {
131 BT_ASSERT_PRE_NO_ERROR();
132 BT_ASSERT_PRE_NON_NULL(message_iterator_class, "Message iterator class");
133 BT_ASSERT_PRE_NON_NULL(seek_method, "Seek method");
134 BT_ASSERT_PRE_DEV_MSG_ITER_CLS_HOT(message_iterator_class);
135 message_iterator_class->methods.seek_ns_from_origin = seek_method;
136 message_iterator_class->methods.can_seek_ns_from_origin = can_seek_method;
137 BT_LIB_LOGD("Set message iterator class's \"seek nanoseconds from origin\" method"
138 ": %!+I", message_iterator_class);
139 return BT_FUNC_STATUS_OK;
140 }
141
142 bt_message_iterator_class_set_method_status
143 bt_message_iterator_class_set_seek_beginning_methods(
144 bt_message_iterator_class *message_iterator_class,
145 bt_message_iterator_class_seek_beginning_method seek_method,
146 bt_message_iterator_class_can_seek_beginning_method can_seek_method)
147 {
148 BT_ASSERT_PRE_NO_ERROR();
149 BT_ASSERT_PRE_NON_NULL(message_iterator_class, "Message iterator class");
150 BT_ASSERT_PRE_NON_NULL(seek_method, "Seek method");
151 BT_ASSERT_PRE_DEV_MSG_ITER_CLS_HOT(message_iterator_class);
152 message_iterator_class->methods.seek_beginning = seek_method;
153 message_iterator_class->methods.can_seek_beginning = can_seek_method;
154 BT_LIB_LOGD("Set message iterator class's \"seek beginning\" methods"
155 ": %!+C", message_iterator_class);
156 return BT_FUNC_STATUS_OK;
157 }
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