66 lines
1.3 KiB
C
66 lines
1.3 KiB
C
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/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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SimpleFp.h
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Abstract:
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simple FILE*, instead of msvcrt.dll
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Author:
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Xiaoyu Wu(xiaoyuw) July 2000
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Revision History:
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--*/
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#pragma once
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#include <stdio.h>
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class CSimpleFileStream
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{
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public:
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HRESULT fopen(PCSTR pFileName); // can be a file name, "stderr", "stdout"
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HRESULT fclose();
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static HRESULT printf(const WCHAR *format, ...)
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{
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HRESULT hr = NOERROR;
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va_list ap;
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WCHAR rgchBuffer[2048];
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int cch;
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DWORD cchWritten;
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va_start(ap, format);
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cch = _vsnwprintf(rgchBuffer, NUMBER_OF(rgchBuffer), format, ap);
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rgchBuffer[NUMBER_OF(rgchBuffer) - 1] = 0;
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va_end(ap);
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if (cch < 0) {// error case
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hr = E_UNEXPECTED;
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goto Exit;
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}
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if( !WriteConsole(GetStdHandle(STD_ERROR_HANDLE), rgchBuffer, cch, &cchWritten, NULL)){
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DWORD dwError = ::FusionpGetLastWin32Error();
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hr = HRESULT_FROM_WIN32(dwError);
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goto Exit;
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}
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hr = NOERROR;
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Exit :
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return hr;
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}
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HRESULT fprintf(const char *format, ...);
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HRESULT fwrite(const VOID*, SIZE_T, SIZE_T);
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CSimpleFileStream(PCSTR pFileName);
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~CSimpleFileStream();
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private:
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HANDLE m_hFile;
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};
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