Mercurial > hg > orthanc
diff OrthancFramework/Sources/StringMemoryBuffer.h @ 4484:64f06e7d5fc7
new abstraction IMemoryBuffer to avoid unnecessary copies of std::string buffers
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 28 Jan 2021 19:03:19 +0100 |
parents | |
children | 434843934307 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/OrthancFramework/Sources/StringMemoryBuffer.h Thu Jan 28 19:03:19 2021 +0100 @@ -0,0 +1,62 @@ +/** + * Orthanc - A Lightweight, RESTful DICOM Store + * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics + * Department, University Hospital of Liege, Belgium + * Copyright (C) 2017-2021 Osimis S.A., Belgium + * + * This program is free software: you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public License + * as published by the Free Software Foundation, either version 3 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this program. If not, see + * <http://www.gnu.org/licenses/>. + **/ + + +#pragma once + +#include "IMemoryBuffer.h" +#include "Compatibility.h" + +namespace Orthanc +{ + class StringMemoryBuffer : public IMemoryBuffer + { + private: + std::string buffer_; + + public: + void Copy(const std::string& buffer) + { + buffer_ = buffer; + } + + void Swap(std::string& buffer) + { + buffer_.swap(buffer); + } + + virtual void MoveToString(std::string& target) ORTHANC_OVERRIDE; + + virtual const void* GetData() const ORTHANC_OVERRIDE + { + return (buffer_.empty() ? NULL : buffer_.c_str()); + } + + virtual size_t GetSize() const ORTHANC_OVERRIDE + { + return buffer_.size(); + } + + static IMemoryBuffer* CreateFromSwap(std::string& buffer); + + static IMemoryBuffer* CreateFromCopy(const std::string& buffer); + }; +}