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0ad/source/lib/file/io/write_buffer.h
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janwas 74b4ac19c1 cleanup+fixes; wdbg_heap is now feature complete.
should be safe to distribute this build

code_annotation.h: add our own noncopyable to avoid DLL base class
warning
debug: remove some unicode functions (unnecessary); minor cleanup
debug_stl: disabled
mahaf: do not warn when running as non admin
wdbg: add wdbg_printf and wdbg_assert for use in allocation hook. add
header
wdbg_heap: now feature complete.
. allows storing 3..4 frames from the call stack with 0 space overhead.
. prevents garbage file/line output.
. takes care of allocation counting (previously done by profiler)
wdbg_sym.cpp: cleanup+fixes (locking, wdbg_*)

fix: properly specify __declspec(dllimport) for certain classes

This was SVN commit r5679.
2008-02-25 21:19:52 +00:00

59 lines
1.1 KiB
C++

#ifndef INCLUDED_WRITE_BUFFER
#define INCLUDED_WRITE_BUFFER
#include "lib/file/file.h"
class WriteBuffer
{
public:
WriteBuffer();
void Append(const void* data, size_t size);
void Overwrite(const void* data, size_t size, size_t offset);
shared_ptr<u8> Data() const
{
return m_data;
}
size_t Size() const
{
return m_size;
}
private:
size_t m_capacity; // must come first (init order)
shared_ptr<u8> m_data;
size_t m_size;
};
class UnalignedWriter : public noncopyable
{
public:
UnalignedWriter(PIFile file, off_t ofs);
~UnalignedWriter();
/**
* add data to the align buffer, writing it out to disk if full.
**/
LibError Append(const u8* data, size_t size) const;
/**
* zero-initialize any remaining space in the align buffer and write
* it to the file. this is called by the destructor.
**/
void Flush() const;
private:
LibError WriteBlock() const;
PIFile m_file;
shared_ptr<u8> m_alignedBuf;
mutable off_t m_alignedOfs;
mutable size_t m_bytesUsed;
};
#endif // #ifndef INCLUDED_WRITE_BUFFER