| 1 | /* |
| 2 | * source.c |
| 3 | * |
| 4 | * Babeltrace Source Component |
| 5 | * |
| 6 | * Copyright 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
| 7 | * |
| 8 | * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com> |
| 9 | * |
| 10 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 11 | * of this software and associated documentation files (the "Software"), to deal |
| 12 | * in the Software without restriction, including without limitation the rights |
| 13 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 14 | * copies of the Software, and to permit persons to whom the Software is |
| 15 | * furnished to do so, subject to the following conditions: |
| 16 | * |
| 17 | * The above copyright notice and this permission notice shall be included in |
| 18 | * all copies or substantial portions of the Software. |
| 19 | * |
| 20 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 21 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 22 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 23 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 24 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 25 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 26 | * SOFTWARE. |
| 27 | */ |
| 28 | |
| 29 | #include <babeltrace/ref.h> |
| 30 | #include <babeltrace/compiler.h> |
| 31 | #include <babeltrace/component/component-source-internal.h> |
| 32 | #include <babeltrace/component/component-internal.h> |
| 33 | #include <babeltrace/component/port-internal.h> |
| 34 | #include <babeltrace/component/notification/iterator.h> |
| 35 | #include <babeltrace/component/notification/iterator-internal.h> |
| 36 | |
| 37 | BT_HIDDEN |
| 38 | enum bt_component_status bt_component_source_validate( |
| 39 | struct bt_component *component) |
| 40 | { |
| 41 | enum bt_component_status ret = BT_COMPONENT_STATUS_OK; |
| 42 | |
| 43 | if (!component) { |
| 44 | ret = BT_COMPONENT_STATUS_INVALID; |
| 45 | goto end; |
| 46 | } |
| 47 | |
| 48 | if (!component->class) { |
| 49 | ret = BT_COMPONENT_STATUS_INVALID; |
| 50 | goto end; |
| 51 | } |
| 52 | |
| 53 | if (component->class->type != BT_COMPONENT_CLASS_TYPE_SOURCE) { |
| 54 | ret = BT_COMPONENT_STATUS_INVALID; |
| 55 | goto end; |
| 56 | } |
| 57 | |
| 58 | end: |
| 59 | return ret; |
| 60 | } |
| 61 | |
| 62 | static |
| 63 | void bt_component_source_destroy(struct bt_component *component) |
| 64 | { |
| 65 | struct bt_component_source *source = container_of(component, |
| 66 | struct bt_component_source, parent); |
| 67 | |
| 68 | if (source->output_ports) { |
| 69 | g_ptr_array_free(source->output_ports, TRUE); |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | |
| 74 | BT_HIDDEN |
| 75 | struct bt_component *bt_component_source_create( |
| 76 | struct bt_component_class *class, struct bt_value *params) |
| 77 | { |
| 78 | int ret; |
| 79 | struct bt_component_source *source = NULL; |
| 80 | enum bt_component_status status; |
| 81 | |
| 82 | source = g_new0(struct bt_component_source, 1); |
| 83 | if (!source) { |
| 84 | goto end; |
| 85 | } |
| 86 | |
| 87 | source->parent.class = bt_get(class); |
| 88 | status = bt_component_init(&source->parent, bt_component_source_destroy); |
| 89 | if (status != BT_COMPONENT_STATUS_OK) { |
| 90 | goto error; |
| 91 | } |
| 92 | |
| 93 | ret = bt_component_init_output_ports(&source->parent, &source->output_ports); |
| 94 | if (ret) { |
| 95 | goto error; |
| 96 | } |
| 97 | |
| 98 | end: |
| 99 | return source ? &source->parent : NULL; |
| 100 | error: |
| 101 | BT_PUT(source); |
| 102 | goto end; |
| 103 | } |
| 104 | |
| 105 | BT_HIDDEN |
| 106 | struct bt_notification_iterator *bt_component_source_create_notification_iterator( |
| 107 | struct bt_component *component) |
| 108 | { |
| 109 | return bt_component_create_iterator(component, NULL); |
| 110 | } |
| 111 | |
| 112 | BT_HIDDEN |
| 113 | struct bt_notification_iterator *bt_component_source_create_notification_iterator_with_init_method_data( |
| 114 | struct bt_component *component, void *init_method_data) |
| 115 | { |
| 116 | return bt_component_create_iterator(component, init_method_data); |
| 117 | } |
| 118 | |
| 119 | int bt_component_source_get_output_port_count(struct bt_component *component) |
| 120 | { |
| 121 | int ret; |
| 122 | struct bt_component_source *source; |
| 123 | |
| 124 | if (!component) { |
| 125 | ret = -1; |
| 126 | goto end; |
| 127 | } |
| 128 | |
| 129 | if (component->class->type != BT_COMPONENT_CLASS_TYPE_SOURCE) { |
| 130 | ret = -1; |
| 131 | goto end; |
| 132 | } |
| 133 | |
| 134 | source = container_of(component, struct bt_component_source, parent); |
| 135 | ret = source->output_ports->len; |
| 136 | end: |
| 137 | return ret; |
| 138 | } |
| 139 | |
| 140 | struct bt_port *bt_component_source_get_output_port( |
| 141 | struct bt_component *component, const char *name) |
| 142 | { |
| 143 | struct bt_component_source *source; |
| 144 | struct bt_port *ret_port = NULL; |
| 145 | |
| 146 | if (!component || !name || |
| 147 | component->class->type != BT_COMPONENT_CLASS_TYPE_SOURCE) { |
| 148 | goto end; |
| 149 | } |
| 150 | |
| 151 | source = container_of(component, struct bt_component_source, parent); |
| 152 | ret_port = bt_component_get_port(source->output_ports, name); |
| 153 | end: |
| 154 | return ret_port; |
| 155 | } |
| 156 | |
| 157 | struct bt_port *bt_component_source_get_output_port_at_index( |
| 158 | struct bt_component *component, int index) |
| 159 | { |
| 160 | struct bt_port *port = NULL; |
| 161 | struct bt_component_source *source; |
| 162 | |
| 163 | if (!component || |
| 164 | component->class->type != BT_COMPONENT_CLASS_TYPE_SOURCE) { |
| 165 | goto end; |
| 166 | } |
| 167 | |
| 168 | source = container_of(component, struct bt_component_source, parent); |
| 169 | port = bt_component_get_port_at_index(source->output_ports, index); |
| 170 | end: |
| 171 | return port; |
| 172 | } |
| 173 | |
| 174 | struct bt_port *bt_component_source_get_default_output_port( |
| 175 | struct bt_component *component) |
| 176 | { |
| 177 | return bt_component_source_get_output_port(component, |
| 178 | DEFAULT_OUTPUT_PORT_NAME); |
| 179 | } |
| 180 | |
| 181 | struct bt_port *bt_component_source_add_output_port( |
| 182 | struct bt_component *component, const char *name) |
| 183 | { |
| 184 | struct bt_port *port; |
| 185 | struct bt_component_source *source; |
| 186 | |
| 187 | if (!component || |
| 188 | component->class->type != BT_COMPONENT_CLASS_TYPE_SOURCE) { |
| 189 | port = NULL; |
| 190 | goto end; |
| 191 | } |
| 192 | |
| 193 | source = container_of(component, struct bt_component_source, parent); |
| 194 | port = bt_component_add_port(component, source->output_ports, |
| 195 | BT_PORT_TYPE_OUTPUT, name); |
| 196 | end: |
| 197 | return port; |
| 198 | } |
| 199 | |
| 200 | enum bt_component_status bt_component_source_remove_output_port( |
| 201 | struct bt_component *component, const char *name) |
| 202 | { |
| 203 | enum bt_component_status status; |
| 204 | struct bt_component_source *source; |
| 205 | |
| 206 | if (!component || |
| 207 | component->class->type != BT_COMPONENT_CLASS_TYPE_SOURCE) { |
| 208 | status = BT_COMPONENT_STATUS_INVALID; |
| 209 | goto end; |
| 210 | } |
| 211 | |
| 212 | source = container_of(component, struct bt_component_source, parent); |
| 213 | status = bt_component_remove_port(component, source->output_ports, |
| 214 | name); |
| 215 | end: |
| 216 | return status; |
| 217 | } |