| 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 | } |