| 1 | /* |
| 2 | * SPDX-License-Identifier: MIT |
| 3 | * |
| 4 | * Copyright 2019 EfficiOS, Inc. |
| 5 | */ |
| 6 | |
| 7 | #define BT_LOG_TAG "LIB/MESSAGE-ITERATOR-CLASS" |
| 8 | #include "lib/logging.h" |
| 9 | |
| 10 | #include "message-iterator-class.h" |
| 11 | |
| 12 | #include "compat/compiler.h" |
| 13 | #include "lib/assert-cond.h" |
| 14 | #include "lib/func-status.h" |
| 15 | |
| 16 | #define BT_ASSERT_PRE_DEV_MSG_ITER_CLS_HOT(_msg_iter_cls) \ |
| 17 | BT_ASSERT_PRE_DEV_HOT("message-iterator-class", \ |
| 18 | (_msg_iter_cls), "Message iterator class", \ |
| 19 | ": %!+I", (_msg_iter_cls)) |
| 20 | |
| 21 | void _bt_message_iterator_class_freeze( |
| 22 | const struct bt_message_iterator_class *msg_iter_cls) |
| 23 | { |
| 24 | BT_ASSERT(msg_iter_cls); |
| 25 | BT_LIB_LOGD("Freezing message iterator class: %!+I", msg_iter_cls); |
| 26 | ((struct bt_message_iterator_class *) msg_iter_cls)->frozen = true; |
| 27 | } |
| 28 | |
| 29 | BT_EXPORT |
| 30 | void bt_message_iterator_class_get_ref( |
| 31 | const bt_message_iterator_class *message_iterator_class) |
| 32 | { |
| 33 | bt_object_get_ref(message_iterator_class); |
| 34 | } |
| 35 | |
| 36 | BT_EXPORT |
| 37 | void bt_message_iterator_class_put_ref( |
| 38 | const bt_message_iterator_class *message_iterator_class) |
| 39 | { |
| 40 | bt_object_put_ref(message_iterator_class); |
| 41 | } |
| 42 | |
| 43 | static |
| 44 | void destroy_iterator_class(struct bt_object *obj) |
| 45 | { |
| 46 | struct bt_message_iterator_class *class; |
| 47 | |
| 48 | BT_ASSERT(obj); |
| 49 | class = container_of(obj, struct bt_message_iterator_class, base); |
| 50 | |
| 51 | BT_LIB_LOGI("Destroying message iterator class: %!+I", class); |
| 52 | |
| 53 | g_free(class); |
| 54 | } |
| 55 | |
| 56 | BT_EXPORT |
| 57 | struct bt_message_iterator_class *bt_message_iterator_class_create( |
| 58 | bt_message_iterator_class_next_method next_method) |
| 59 | { |
| 60 | struct bt_message_iterator_class *message_iterator_class; |
| 61 | |
| 62 | BT_ASSERT_PRE_NO_ERROR(); |
| 63 | BT_ASSERT_PRE_NON_NULL("next-method", next_method, "Next method"); |
| 64 | BT_LOGI("Creating message iterator class: next-method-addr=%p", |
| 65 | next_method); |
| 66 | |
| 67 | message_iterator_class = g_new0(struct bt_message_iterator_class, 1); |
| 68 | if (!message_iterator_class) { |
| 69 | BT_LIB_LOGE_APPEND_CAUSE( |
| 70 | "Failed to allocate one message iterator class."); |
| 71 | goto end; |
| 72 | } |
| 73 | |
| 74 | bt_object_init_shared(&message_iterator_class->base, destroy_iterator_class); |
| 75 | |
| 76 | message_iterator_class->methods.next = next_method; |
| 77 | |
| 78 | end: |
| 79 | return message_iterator_class; |
| 80 | } |
| 81 | |
| 82 | BT_EXPORT |
| 83 | bt_message_iterator_class_set_method_status |
| 84 | bt_message_iterator_class_set_initialize_method( |
| 85 | bt_message_iterator_class *message_iterator_class, |
| 86 | bt_message_iterator_class_initialize_method method) |
| 87 | { |
| 88 | BT_ASSERT_PRE_NO_ERROR(); |
| 89 | BT_ASSERT_PRE_MSG_ITER_CLS_NON_NULL(message_iterator_class); |
| 90 | BT_ASSERT_PRE_METHOD_NON_NULL(method); |
| 91 | BT_ASSERT_PRE_DEV_MSG_ITER_CLS_HOT(message_iterator_class); |
| 92 | message_iterator_class->methods.initialize = method; |
| 93 | BT_LIB_LOGD("Set message iterator class's iterator initialization method" |
| 94 | ": %!+I", message_iterator_class); |
| 95 | return BT_FUNC_STATUS_OK; |
| 96 | } |
| 97 | |
| 98 | BT_EXPORT |
| 99 | bt_message_iterator_class_set_method_status |
| 100 | bt_message_iterator_class_set_finalize_method( |
| 101 | bt_message_iterator_class *message_iterator_class, |
| 102 | bt_message_iterator_class_finalize_method method) |
| 103 | { |
| 104 | BT_ASSERT_PRE_NO_ERROR(); |
| 105 | BT_ASSERT_PRE_MSG_ITER_CLS_NON_NULL(message_iterator_class); |
| 106 | BT_ASSERT_PRE_METHOD_NON_NULL(method); |
| 107 | BT_ASSERT_PRE_DEV_MSG_ITER_CLS_HOT(message_iterator_class); |
| 108 | message_iterator_class->methods.finalize = method; |
| 109 | BT_LIB_LOGD("Set message iterator class's finalization method" |
| 110 | ": %!+I", message_iterator_class); |
| 111 | return BT_FUNC_STATUS_OK; |
| 112 | } |
| 113 | |
| 114 | BT_EXPORT |
| 115 | bt_message_iterator_class_set_method_status |
| 116 | bt_message_iterator_class_set_seek_ns_from_origin_methods( |
| 117 | bt_message_iterator_class *message_iterator_class, |
| 118 | bt_message_iterator_class_seek_ns_from_origin_method seek_method, |
| 119 | bt_message_iterator_class_can_seek_ns_from_origin_method can_seek_method) |
| 120 | { |
| 121 | BT_ASSERT_PRE_NO_ERROR(); |
| 122 | BT_ASSERT_PRE_MSG_ITER_CLS_NON_NULL(message_iterator_class); |
| 123 | BT_ASSERT_PRE_NON_NULL("seek-method", seek_method, "Seek method"); |
| 124 | BT_ASSERT_PRE_DEV_MSG_ITER_CLS_HOT(message_iterator_class); |
| 125 | message_iterator_class->methods.seek_ns_from_origin = seek_method; |
| 126 | message_iterator_class->methods.can_seek_ns_from_origin = can_seek_method; |
| 127 | BT_LIB_LOGD("Set message iterator class's \"seek nanoseconds from origin\" method" |
| 128 | ": %!+I", message_iterator_class); |
| 129 | return BT_FUNC_STATUS_OK; |
| 130 | } |
| 131 | |
| 132 | BT_EXPORT |
| 133 | bt_message_iterator_class_set_method_status |
| 134 | bt_message_iterator_class_set_seek_beginning_methods( |
| 135 | bt_message_iterator_class *message_iterator_class, |
| 136 | bt_message_iterator_class_seek_beginning_method seek_method, |
| 137 | bt_message_iterator_class_can_seek_beginning_method can_seek_method) |
| 138 | { |
| 139 | BT_ASSERT_PRE_NO_ERROR(); |
| 140 | BT_ASSERT_PRE_MSG_ITER_CLS_NON_NULL(message_iterator_class); |
| 141 | BT_ASSERT_PRE_NON_NULL("seek-method", seek_method, "Seek method"); |
| 142 | BT_ASSERT_PRE_DEV_MSG_ITER_CLS_HOT(message_iterator_class); |
| 143 | message_iterator_class->methods.seek_beginning = seek_method; |
| 144 | message_iterator_class->methods.can_seek_beginning = can_seek_method; |
| 145 | BT_LIB_LOGD("Set message iterator class's \"seek beginning\" methods" |
| 146 | ": %!+I", message_iterator_class); |
| 147 | return BT_FUNC_STATUS_OK; |
| 148 | } |