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674be02d52
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172025 91177308-0d34-0410-b5e6-96231b3b80d8
39 lines
1.1 KiB
C++
39 lines
1.1 KiB
C++
//===---- llvm/Support/DataStream.h - Lazy bitcode streaming ----*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This header defines DataStreamer, which fetches bytes of data from
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// a stream source. It provides support for streaming (lazy reading) of
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// data, e.g. bitcode
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SUPPORT_DATASTREAM_H
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#define LLVM_SUPPORT_DATASTREAM_H
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#include <string>
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namespace llvm {
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class DataStreamer {
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public:
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/// Fetch bytes [start-end) from the stream, and write them to the
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/// buffer pointed to by buf. Returns the number of bytes actually written.
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virtual size_t GetBytes(unsigned char *buf, size_t len) = 0;
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virtual ~DataStreamer();
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};
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DataStreamer *getDataFileStreamer(const std::string &Filename,
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std::string *Err);
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}
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#endif // LLVM_SUPPORT_DATASTREAM_H_
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