mirror of
https://github.com/RPCS3/llvm.git
synced 2026-01-31 01:25:19 +01:00
fc3b3807b1
Per Zachary Turner and Mehdi Amini suggestion to make only post-commit reviews. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@287355 91177308-0d34-0410-b5e6-96231b3b80d8
54 lines
1.7 KiB
C++
54 lines
1.7 KiB
C++
//===- StreamInterface.h - Base interface for a stream of data --*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_DEBUGINFO_MSF_STREAMINTERFACE_H
|
|
#define LLVM_DEBUGINFO_MSF_STREAMINTERFACE_H
|
|
|
|
#include "llvm/ADT/ArrayRef.h"
|
|
#include "llvm/Support/Error.h"
|
|
#include <cstdint>
|
|
|
|
namespace llvm {
|
|
namespace msf {
|
|
|
|
class ReadableStream {
|
|
public:
|
|
virtual ~ReadableStream() = default;
|
|
|
|
// Given an offset into the stream and a number of bytes, attempt to read
|
|
// the bytes and set the output ArrayRef to point to a reference into the
|
|
// stream, without copying any data.
|
|
virtual Error readBytes(uint32_t Offset, uint32_t Size,
|
|
ArrayRef<uint8_t> &Buffer) const = 0;
|
|
|
|
// Given an offset into the stream, read as much as possible without copying
|
|
// any data.
|
|
virtual Error readLongestContiguousChunk(uint32_t Offset,
|
|
ArrayRef<uint8_t> &Buffer) const = 0;
|
|
|
|
virtual uint32_t getLength() const = 0;
|
|
};
|
|
|
|
class WritableStream : public ReadableStream {
|
|
public:
|
|
~WritableStream() override = default;
|
|
|
|
// Attempt to write the given bytes into the stream at the desired offset.
|
|
// This will always necessitate a copy. Cannot shrink or grow the stream,
|
|
// only writes into existing allocated space.
|
|
virtual Error writeBytes(uint32_t Offset, ArrayRef<uint8_t> Data) const = 0;
|
|
|
|
virtual Error commit() const = 0;
|
|
};
|
|
|
|
} // end namespace msf
|
|
} // end namespace llvm
|
|
|
|
#endif // LLVM_DEBUGINFO_MSF_STREAMINTERFACE_H
|