mirror of https://gitee.com/bigwinds/arangodb
80 lines
2.6 KiB
C++
80 lines
2.6 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Dr. Frank Celler
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////////////////////////////////////////////////////////////////////////////////
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#include "Basics/Common.h"
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////////////////////////////////////////////////////////////////////////////////
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/// @brief destroys the data of blob, but does not free the pointer
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////////////////////////////////////////////////////////////////////////////////
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void TRI_DestroyBlob(TRI_memory_zone_t* zone, TRI_blob_t* blob) {
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if (blob != nullptr) {
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if (blob->data != nullptr) {
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TRI_Free(zone, blob->data);
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}
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief copies a blob into given destination
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////////////////////////////////////////////////////////////////////////////////
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int TRI_CopyToBlob(TRI_memory_zone_t* zone, TRI_blob_t* dst,
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TRI_blob_t const* src) {
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dst->length = src->length;
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if (src->length == 0 || src->data == nullptr) {
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dst->length = 0;
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dst->data = nullptr;
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} else {
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dst->data = static_cast<char*>(TRI_Allocate(zone, dst->length, false));
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if (dst->data == nullptr) {
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return TRI_ERROR_OUT_OF_MEMORY;
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}
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memcpy(dst->data, src->data, src->length);
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}
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return TRI_ERROR_NO_ERROR;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief assigns a blob value by reference into given destination
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////////////////////////////////////////////////////////////////////////////////
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int TRI_AssignToBlob(TRI_memory_zone_t* zone, TRI_blob_t* dst,
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TRI_blob_t const* src) {
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dst->length = src->length;
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if (src->length == 0 || src->data == nullptr) {
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dst->length = 0;
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dst->data = nullptr;
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} else {
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dst->length = src->length;
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dst->data = src->data;
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}
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return TRI_ERROR_NO_ERROR;
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}
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