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ae65e281f3
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
66 lines
1.8 KiB
C++
66 lines
1.8 KiB
C++
//===- Buffer.h -------------------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TOOLS_OBJCOPY_BUFFER_H
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#define LLVM_TOOLS_OBJCOPY_BUFFER_H
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/FileOutputBuffer.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include <memory>
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namespace llvm {
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namespace objcopy {
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// The class Buffer abstracts out the common interface of FileOutputBuffer and
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// WritableMemoryBuffer so that the hierarchy of Writers depends on this
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// abstract interface and doesn't depend on a particular implementation.
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// TODO: refactor the buffer classes in LLVM to enable us to use them here
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// directly.
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class Buffer {
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StringRef Name;
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public:
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virtual ~Buffer();
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virtual void allocate(size_t Size) = 0;
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virtual uint8_t *getBufferStart() = 0;
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virtual Error commit() = 0;
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explicit Buffer(StringRef Name) : Name(Name) {}
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StringRef getName() const { return Name; }
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};
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class FileBuffer : public Buffer {
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std::unique_ptr<FileOutputBuffer> Buf;
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public:
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void allocate(size_t Size) override;
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uint8_t *getBufferStart() override;
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Error commit() override;
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explicit FileBuffer(StringRef FileName) : Buffer(FileName) {}
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};
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class MemBuffer : public Buffer {
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std::unique_ptr<WritableMemoryBuffer> Buf;
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public:
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void allocate(size_t Size) override;
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uint8_t *getBufferStart() override;
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Error commit() override;
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explicit MemBuffer(StringRef Name) : Buffer(Name) {}
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std::unique_ptr<WritableMemoryBuffer> releaseMemoryBuffer();
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};
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} // end namespace objcopy
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} // end namespace llvm
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#endif // LLVM_TOOLS_OBJCOPY_BUFFER_H
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