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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 | 16 | |
486428e8 | 17 | typedef void (*run_in_comp_cls_init_func)(bt_self_component *self_comp, void *user_data); |
5d7e8359 | 18 | |
486428e8 SM |
19 | struct comp_cls_init_method_data |
20 | { | |
21 | run_in_comp_cls_init_func func; | |
22 | void *user_data; | |
5d7e8359 PP |
23 | }; |
24 | ||
486428e8 SM |
25 | static bt_component_class_initialize_method_status |
26 | comp_cls_init(bt_self_component_source *self_comp, bt_self_component_source_configuration *conf, | |
27 | const bt_value *params, void *init_method_data) | |
5d7e8359 | 28 | { |
486428e8 | 29 | comp_cls_init_method_data *data = static_cast<comp_cls_init_method_data *>(init_method_data); |
5d7e8359 | 30 | |
486428e8 SM |
31 | /* Call user function which is expected to abort */ |
32 | data->func(bt_self_component_source_as_self_component(self_comp), data->user_data); | |
5d7e8359 | 33 | |
486428e8 SM |
34 | /* Never reached! */ |
35 | return BT_COMPONENT_CLASS_INITIALIZE_METHOD_STATUS_ERROR; | |
5d7e8359 PP |
36 | } |
37 | ||
486428e8 SM |
38 | static bt_message_iterator_class_next_method_status |
39 | msg_iter_cls_next(bt_self_message_iterator *self_msg_iter, bt_message_array_const msgs, | |
40 | uint64_t capacity, uint64_t *count) | |
5d7e8359 | 41 | { |
486428e8 SM |
42 | /* Not used */ |
43 | return BT_MESSAGE_ITERATOR_CLASS_NEXT_METHOD_STATUS_ERROR; | |
5d7e8359 PP |
44 | } |
45 | ||
486428e8 | 46 | static void run_in_comp_cls_init(run_in_comp_cls_init_func func, void *user_data) |
5d7e8359 | 47 | { |
486428e8 SM |
48 | bt_message_iterator_class *msg_iter_cls; |
49 | bt_component_class_source *comp_cls; | |
50 | bt_component_class_set_method_status set_method_status; | |
51 | bt_graph *graph; | |
52 | struct comp_cls_init_method_data init_method_data = { | |
53 | .func = func, | |
54 | .user_data = user_data, | |
55 | }; | |
56 | ||
57 | /* Create component class */ | |
58 | msg_iter_cls = bt_message_iterator_class_create(msg_iter_cls_next); | |
59 | BT_ASSERT(msg_iter_cls); | |
60 | comp_cls = bt_component_class_source_create("yo", msg_iter_cls); | |
61 | BT_ASSERT(comp_cls); | |
62 | set_method_status = bt_component_class_source_set_initialize_method(comp_cls, comp_cls_init); | |
63 | BT_ASSERT(set_method_status == BT_COMPONENT_CLASS_SET_METHOD_STATUS_OK); | |
64 | ||
65 | /* Create graph */ | |
66 | graph = bt_graph_create(0); | |
67 | BT_ASSERT(graph); | |
68 | ||
69 | /* | |
5d7e8359 PP |
70 | * Add source component: this calls the initialization method, |
71 | * calling `func`. | |
72 | */ | |
486428e8 SM |
73 | (void) bt_graph_add_source_component_with_initialize_method_data( |
74 | graph, comp_cls, "whatever", NULL, &init_method_data, BT_LOGGING_LEVEL_NONE, NULL); | |
5d7e8359 | 75 | |
486428e8 | 76 | /* |
5d7e8359 PP |
77 | * This point is not expected to be reached as func() is |
78 | * expected to abort. | |
79 | */ | |
80 | } | |
81 | ||
486428e8 | 82 | static void run_in_comp_cls_init_defer(bt_self_component *self_comp, void *user_data) |
5d7e8359 | 83 | { |
486428e8 SM |
84 | cond_trigger_run_in_comp_cls_init_func user_func = |
85 | reinterpret_cast<cond_trigger_run_in_comp_cls_init_func>(user_data); | |
5d7e8359 | 86 | |
486428e8 | 87 | user_func(self_comp); |
5d7e8359 PP |
88 | } |
89 | ||
486428e8 | 90 | static void run_trigger(const struct cond_trigger *trigger) |
5d7e8359 | 91 | { |
486428e8 SM |
92 | switch (trigger->func_type) { |
93 | case COND_TRIGGER_FUNC_TYPE_BASIC: | |
94 | trigger->func.basic(); | |
95 | break; | |
96 | case COND_TRIGGER_FUNC_TYPE_RUN_IN_COMP_CLS_INIT: | |
97 | run_in_comp_cls_init(run_in_comp_cls_init_defer, | |
98 | reinterpret_cast<void *>(trigger->func.run_in_comp_cls_init)); | |
99 | break; | |
100 | default: | |
101 | abort(); | |
102 | } | |
5d7e8359 PP |
103 | } |
104 | ||
486428e8 | 105 | static void escape_json_string(const char *str, GString *escaped_str) |
5d7e8359 | 106 | { |
486428e8 | 107 | g_string_assign(escaped_str, ""); |
5d7e8359 | 108 | |
486428e8 SM |
109 | for (const char *ch = str; *ch; ch++) { |
110 | if (*ch == '\\' || *ch == '"') { | |
111 | g_string_append_c(escaped_str, '\\'); | |
112 | } | |
5d7e8359 | 113 | |
486428e8 SM |
114 | g_string_append_c(escaped_str, *ch); |
115 | } | |
5d7e8359 PP |
116 | } |
117 | ||
486428e8 | 118 | static void list_triggers(const struct cond_trigger triggers[], size_t trigger_count) |
5d7e8359 | 119 | { |
486428e8 SM |
120 | GString *escaped_str = g_string_new(NULL); |
121 | size_t i; | |
5d7e8359 | 122 | |
486428e8 SM |
123 | BT_ASSERT(escaped_str); |
124 | printf("["); | |
5d7e8359 | 125 | |
486428e8 SM |
126 | for (i = 0; i < trigger_count; i++) { |
127 | const struct cond_trigger *trigger = &triggers[i]; | |
5d7e8359 | 128 | |
486428e8 SM |
129 | /* Condition ID */ |
130 | escape_json_string(trigger->cond_id, escaped_str); | |
131 | printf("{\"cond-id\":\"%s\",", escaped_str->str); | |
5d7e8359 | 132 | |
486428e8 SM |
133 | /* Name starts with condition ID */ |
134 | printf("\"name\":\"%s", escaped_str->str); | |
5d7e8359 | 135 | |
486428e8 SM |
136 | if (trigger->suffix) { |
137 | escape_json_string(trigger->suffix, escaped_str); | |
138 | printf("-%s", escaped_str->str); | |
139 | } | |
5d7e8359 | 140 | |
486428e8 | 141 | printf("\"}"); |
5d7e8359 | 142 | |
486428e8 SM |
143 | if (i < trigger_count - 1) { |
144 | /* Comma between objects */ | |
145 | printf(","); | |
146 | } | |
147 | } | |
5d7e8359 | 148 | |
486428e8 SM |
149 | printf("]"); |
150 | g_string_free(escaped_str, TRUE); | |
151 | fflush(stdout); | |
5d7e8359 PP |
152 | } |
153 | ||
486428e8 SM |
154 | void cond_main(int argc, const char *argv[], const struct cond_trigger triggers[], |
155 | size_t trigger_count) | |
5d7e8359 | 156 | { |
486428e8 SM |
157 | BT_ASSERT(argc >= 2); |
158 | ||
159 | if (strcmp(argv[1], "list") == 0) { | |
160 | list_triggers(triggers, trigger_count); | |
161 | } else if (strcmp(argv[1], "run") == 0) { | |
162 | int index; | |
163 | ||
164 | BT_ASSERT(argc >= 3); | |
165 | index = atoi(argv[2]); | |
166 | BT_ASSERT(index >= 0 && index < trigger_count); | |
167 | run_trigger(&triggers[index]); | |
168 | } | |
5d7e8359 | 169 | } |