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5d7e8359 PP |
1 | /* |
2 | * SPDX-License-Identifier: GPL-2.0-only | |
3 | * | |
4 | * Copyright (C) 2020 Philippe Proulx <pproulx@efficios.com> | |
5 | */ | |
6 | ||
7 | #include <stdlib.h> | |
8 | #include <stdio.h> | |
9 | #include <string.h> | |
10 | #include <assert.h> | |
11 | #include <babeltrace2/babeltrace.h> | |
12 | #include <glib.h> | |
13 | ||
14 | #include "common/assert.h" | |
053db960 | 15 | #include "utils.hpp" |
5d7e8359 PP |
16 | |
17 | typedef void (* run_in_comp_cls_init_func)( | |
18 | bt_self_component *self_comp, void *user_data); | |
19 | ||
20 | struct comp_cls_init_method_data { | |
21 | run_in_comp_cls_init_func func; | |
22 | void *user_data; | |
23 | }; | |
24 | ||
25 | static | |
26 | bt_component_class_initialize_method_status comp_cls_init( | |
27 | bt_self_component_source *self_comp, | |
28 | bt_self_component_source_configuration *conf, | |
29 | const bt_value *params, void *init_method_data) | |
30 | { | |
053db960 SM |
31 | comp_cls_init_method_data *data = |
32 | static_cast<comp_cls_init_method_data *>(init_method_data); | |
5d7e8359 PP |
33 | |
34 | /* Call user function which is expected to abort */ | |
35 | data->func(bt_self_component_source_as_self_component(self_comp), | |
36 | data->user_data); | |
37 | ||
38 | /* Never reached! */ | |
39 | return BT_COMPONENT_CLASS_INITIALIZE_METHOD_STATUS_ERROR; | |
40 | } | |
41 | ||
42 | static | |
43 | bt_message_iterator_class_next_method_status msg_iter_cls_next( | |
44 | bt_self_message_iterator *self_msg_iter, | |
45 | bt_message_array_const msgs, uint64_t capacity, | |
46 | uint64_t *count) | |
47 | { | |
48 | /* Not used */ | |
49 | return BT_MESSAGE_ITERATOR_CLASS_NEXT_METHOD_STATUS_ERROR; | |
50 | } | |
51 | ||
52 | static | |
53 | void run_in_comp_cls_init(run_in_comp_cls_init_func func, | |
54 | void *user_data) | |
55 | { | |
56 | bt_message_iterator_class *msg_iter_cls; | |
57 | bt_component_class_source *comp_cls; | |
58 | bt_component_class_set_method_status set_method_status; | |
59 | bt_graph *graph; | |
60 | struct comp_cls_init_method_data init_method_data = { | |
61 | .func = func, | |
62 | .user_data = user_data, | |
63 | }; | |
64 | ||
65 | /* Create component class */ | |
66 | msg_iter_cls = bt_message_iterator_class_create(msg_iter_cls_next); | |
67 | BT_ASSERT(msg_iter_cls); | |
68 | comp_cls = bt_component_class_source_create("yo", msg_iter_cls); | |
69 | BT_ASSERT(comp_cls); | |
70 | set_method_status = bt_component_class_source_set_initialize_method( | |
71 | comp_cls, comp_cls_init); | |
72 | BT_ASSERT(set_method_status == BT_COMPONENT_CLASS_SET_METHOD_STATUS_OK); | |
73 | ||
74 | /* Create graph */ | |
75 | graph = bt_graph_create(0); | |
76 | BT_ASSERT(graph); | |
77 | ||
78 | /* | |
79 | * Add source component: this calls the initialization method, | |
80 | * calling `func`. | |
81 | */ | |
82 | (void) bt_graph_add_source_component_with_initialize_method_data(graph, | |
83 | comp_cls, "whatever", NULL, &init_method_data, | |
84 | BT_LOGGING_LEVEL_NONE, NULL); | |
85 | ||
86 | /* | |
87 | * This point is not expected to be reached as func() is | |
88 | * expected to abort. | |
89 | */ | |
90 | } | |
91 | ||
92 | static | |
93 | void run_in_comp_cls_init_defer(bt_self_component *self_comp, | |
94 | void *user_data) | |
95 | { | |
053db960 SM |
96 | cond_trigger_run_in_comp_cls_init_func user_func = |
97 | reinterpret_cast<cond_trigger_run_in_comp_cls_init_func>(user_data); | |
5d7e8359 PP |
98 | |
99 | user_func(self_comp); | |
100 | } | |
101 | ||
102 | static | |
103 | void run_trigger(const struct cond_trigger *trigger) | |
104 | { | |
105 | switch (trigger->func_type) { | |
106 | case COND_TRIGGER_FUNC_TYPE_BASIC: | |
107 | trigger->func.basic(); | |
108 | break; | |
109 | case COND_TRIGGER_FUNC_TYPE_RUN_IN_COMP_CLS_INIT: | |
110 | run_in_comp_cls_init(run_in_comp_cls_init_defer, | |
053db960 | 111 | reinterpret_cast<void *>(trigger->func.run_in_comp_cls_init)); |
5d7e8359 PP |
112 | break; |
113 | default: | |
114 | abort(); | |
115 | } | |
116 | } | |
117 | ||
118 | static | |
119 | void escape_json_string(const char *str, GString *escaped_str) | |
120 | { | |
121 | g_string_assign(escaped_str, ""); | |
122 | ||
123 | for (const char *ch = str; *ch; ch++) { | |
124 | if (*ch == '\\' || *ch == '"') { | |
125 | g_string_append_c(escaped_str, '\\'); | |
126 | } | |
127 | ||
128 | g_string_append_c(escaped_str, *ch); | |
129 | } | |
130 | } | |
131 | ||
132 | static | |
133 | void list_triggers(const struct cond_trigger triggers[], size_t trigger_count) | |
134 | { | |
135 | GString *escaped_str = g_string_new(NULL); | |
136 | size_t i; | |
137 | ||
138 | BT_ASSERT(escaped_str); | |
139 | printf("["); | |
140 | ||
141 | for (i = 0; i < trigger_count; i++) { | |
142 | const struct cond_trigger *trigger = &triggers[i]; | |
143 | ||
144 | /* Condition ID */ | |
145 | escape_json_string(trigger->cond_id, escaped_str); | |
146 | printf("{\"cond-id\":\"%s\",", escaped_str->str); | |
147 | ||
148 | /* Name starts with condition ID */ | |
149 | printf("\"name\":\"%s", escaped_str->str); | |
150 | ||
151 | if (trigger->suffix) { | |
152 | escape_json_string(trigger->suffix, escaped_str); | |
153 | printf("-%s", escaped_str->str); | |
154 | } | |
155 | ||
156 | printf("\"}"); | |
157 | ||
158 | if (i < trigger_count - 1) { | |
159 | /* Comma between objects */ | |
160 | printf(","); | |
161 | } | |
162 | } | |
163 | ||
164 | printf("]"); | |
165 | g_string_free(escaped_str, TRUE); | |
166 | fflush(stdout); | |
167 | } | |
168 | ||
169 | void cond_main(int argc, const char *argv[], | |
170 | const struct cond_trigger triggers[], size_t trigger_count) | |
171 | { | |
172 | BT_ASSERT(argc >= 2); | |
173 | ||
174 | if (strcmp(argv[1], "list") == 0) { | |
175 | list_triggers(triggers, trigger_count); | |
176 | } else if (strcmp(argv[1], "run") == 0) { | |
177 | int index; | |
178 | ||
179 | BT_ASSERT(argc >= 3); | |
180 | index = atoi(argv[2]); | |
181 | BT_ASSERT(index >= 0 && index < trigger_count); | |
182 | run_trigger(&triggers[index]); | |
183 | } | |
184 | } |