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/*
*
* 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;
}
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