| /* |
| * |
| * Copyright 2015 gRPC authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| |
| #include <grpc/support/port_platform.h> |
| |
| #include <string.h> |
| |
| #include <grpc/support/alloc.h> |
| #include <grpc/support/log.h> |
| |
| #include "src/core/lib/json/json.h" |
| |
| grpc_json* grpc_json_create(grpc_json_type type) { |
| grpc_json* json = static_cast<grpc_json*>(gpr_zalloc(sizeof(*json))); |
| json->type = type; |
| |
| return json; |
| } |
| |
| void grpc_json_destroy(grpc_json* json) { |
| while (json->child) { |
| grpc_json_destroy(json->child); |
| } |
| |
| if (json->next) { |
| json->next->prev = json->prev; |
| } |
| |
| if (json->prev) { |
| json->prev->next = json->next; |
| } else if (json->parent) { |
| json->parent->child = json->next; |
| } |
| |
| if (json->owns_value) { |
| gpr_free((void*)json->value); |
| } |
| |
| gpr_free(json); |
| } |
| |
| grpc_json* grpc_json_link_child(grpc_json* parent, grpc_json* child, |
| grpc_json* sibling) { |
| // first child case. |
| if (parent->child == nullptr) { |
| GPR_ASSERT(sibling == nullptr); |
| parent->child = child; |
| return child; |
| } |
| if (sibling == nullptr) { |
| sibling = parent->child; |
| } |
| // always find the right most sibling. |
| while (sibling->next != nullptr) { |
| sibling = sibling->next; |
| } |
| sibling->next = child; |
| return child; |
| } |
| |
| grpc_json* grpc_json_create_child(grpc_json* sibling, grpc_json* parent, |
| const char* key, const char* value, |
| grpc_json_type type, bool owns_value) { |
| grpc_json* child = grpc_json_create(type); |
| grpc_json_link_child(parent, child, sibling); |
| child->owns_value = owns_value; |
| child->parent = parent; |
| child->value = value; |
| child->key = key; |
| return child; |
| } |