mirror of
https://github.com/dbalsom/x86_microcode.git
synced 2026-06-16 13:07:07 +03:00
Andrew Jenner
63 lines
1.5 KiB
C++
63 lines
1.5 KiB
C++
#include "alfe/main.h"
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#ifndef INCLUDED_FILE_STREAM_H
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#define INCLUDED_FILE_STREAM_H
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template<class T> class FileStreamT : public Stream
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{
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public:
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#ifdef _WIN32
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FileStreamT(HANDLE handle, const File& file)
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: Stream(handle, file, true) { }
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#else
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FileStreamT(int fileDescriptor, const File& file)
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: Stream(fileDescriptor, file, true) { }
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#endif
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#ifndef _WIN32
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void sync()
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{
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if (fsync(operator int()) != 0)
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throw Exception::systemError(
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"Synchronizing file " + file().path());
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}
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#endif
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UInt64 size()
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{
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#ifdef _WIN32
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LARGE_INTEGER size;
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if (GetFileSizeEx(operator HANDLE(), &size) == 0)
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throw Exception::systemError(
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"Obtaining length of file " + file().path());
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return size.QuadPart;
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#else
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off_t o = seek(0, SEEK_CUR);
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off_t n = seek(0, SEEK_END);
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seek(o, SEEK_SET);
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return n;
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#endif
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}
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void seek(UInt64 position)
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{
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#ifdef _WIN32
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LARGE_INTEGER p;
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p.QuadPart = position;
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if (SetFilePointerEx(operator HANDLE(), p, NULL, FILE_BEGIN) == 0)
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throw Exception::systemError("Seeking file " + file().path());
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#else
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seek(position, SEEK_SET);
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#endif
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}
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private:
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#ifndef _WIN32
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off_t seek(off_t offset, int whence)
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{
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off_t n = lseek(operator int(), offset, whence);
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if (n == (off_t)(-1))
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throw Exception::systemError("Seeking file " + file().path());
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return n;
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}
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#endif
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};
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#endif // INCLUDED_FILE_STREAM_H
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