TnbRapiFile.h

[詳解]

#pragma once
#include "TnbStr.h"
#include "TnbFile.h"
#include "TnbRapi.h"
 
 
 
//TNB Library
namespace TNB
{
 
 
 
#ifndef _TnbDOXYGEN //Document作成用シンボル
 
struct TPhRapiCloseHandle
{
    void operator()(HANDLE P) { if ( CRapi::IsSupported() ) { ::CeCloseHandle(P); } }
};
 
typedef TNB::CPointerHandleBaseT<HANDLE, TPhRapiCloseHandle, (INT_PTR)INVALID_HANDLE_VALUE> CRapiHandleHandle;
 
template<typename TYP>
class CRapiFileApiT : public TYP
{
public:
    CRapiFileApiT(void)
    {
        CRapi::Startup();
    }
    virtual HANDLE GetHandle(void) const
    {
        return m_hhFile;
    }
protected:
    virtual void SetHandle(HANDLE h)
    {
        m_hhFile = h;
    }
    virtual BOOL ApiGetFileInformationByHandle(HANDLE hFile, LPBY_HANDLE_FILE_INFORMATION P) const
    {
        if ( ! CRapi::IsSupported() ) { return FALSE; }
        BOOL r = TRUE;
        Zero(*P);
        P->dwFileAttributes = ::GetFileAttributes(GetOpenName());
        r &= ::CeGetFileTime(hFile, &P->ftCreationTime, &P->ftLastAccessTime, &P->ftLastWriteTime);
        P->nFileSizeLow = ::CeGetFileSize(hFile, &P->nFileSizeHigh);
        ::SetLastError(::CeGetLastError());
        return r;
    }
    virtual HANDLE ApiCreateFile(LPCTSTR lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes,
            DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile)
    {
        if ( ! CRapi::IsSupported() ) { return INVALID_HANDLE_VALUE; }
        HANDLE h = ::CeCreateFile(CUnicode(lpFileName), dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile);
        ::SetLastError(::CeGetLastError());
        return h;
    }
    virtual DWORD ApiGetFileSize(HANDLE hFile, LPDWORD lpFileSizeHigh) const
    {
        if ( ! CRapi::IsSupported() ) { return 0; }
        DWORD r = ::CeGetFileSize(hFile, lpFileSizeHigh);
        ::SetLastError(::CeGetLastError());
        return r;
    }
    virtual DWORD ApiSetFilePointer(HANDLE hFile, LONG lDistanceToMove, PLONG lpDistanceToMoveHigh, DWORD dwMoveMethod) const
    {
        if ( ! CRapi::IsSupported() ) { return 0; }
        DWORD r = ::CeSetFilePointer(hFile, lDistanceToMove, lpDistanceToMoveHigh, dwMoveMethod);
        ::SetLastError(::CeGetLastError());
        return r;
    }
    virtual BOOL ApiReadFile(HANDLE hFile, LPVOID lpBuffer, DWORD nNumberOfBytesToRead, LPDWORD lpNumberOfBytesRead, LPOVERLAPPED lpOverlapped) const
    {
        if ( ! CRapi::IsSupported() ) { return FALSE; }
        BOOL r = ::CeReadFile(hFile, lpBuffer, nNumberOfBytesToRead, lpNumberOfBytesRead, lpOverlapped);
        ::SetLastError(::CeGetLastError());
        return r;
    }
    virtual BOOL ApiSetFileTime(HANDLE hFile, CONST FILETIME *lpCreationTime, CONST FILETIME *lpLastAccessTime, CONST FILETIME *lpLastWriteTime)
    {
        if ( ! CRapi::IsSupported() ) { return FALSE; }
        FILETIME f1 = *lpCreationTime;
        FILETIME f2 = *lpLastAccessTime;
        FILETIME f3 = *lpLastWriteTime;
        BOOL r = ::CeSetFileTime(hFile, &f1, &f2, &f3);
        ::SetLastError(::CeGetLastError());
        return r;
    }
    virtual BOOL ApiSetEndOfFile(HANDLE hFile)
    {
        if ( ! CRapi::IsSupported() ) { return FALSE; }
        BOOL r = ::CeSetEndOfFile(hFile);
        ::SetLastError(::CeGetLastError());
        return r;
    }
    virtual BOOL ApiWriteFile(HANDLE hFile, LPCVOID lpBuffer, DWORD nNumberOfBytesToWrite, LPDWORD lpNumberOfBytesWritten, LPOVERLAPPED lpOverlapped)
    {
        if ( ! CRapi::IsSupported() ) { return FALSE; }
        BOOL r = ::CeWriteFile(hFile, lpBuffer, nNumberOfBytesToWrite, lpNumberOfBytesWritten, lpOverlapped);
        ::SetLastError(::CeGetLastError());
        return r;
    }
private:
    mutable CRapiHandleHandle   m_hhFile;       
};
 
// RAPI ファイルハンドル管理クラス
//typedef CRapiFileApiT<CFileHandle> CRapiFileHandle;
 
#endif // _TnbDOXYGEN
 
 
 
#ifndef _TnbDOXYGEN //Document作成用シンボル
typedef CRapiFileApiT<CFileReader> CRapiFileReader;
#else
 class CRapiFileReader : public CFileReader
 {typedef aa __a;};
#endif
 
 
 
#ifndef _TnbDOXYGEN //Document作成用シンボル
typedef CRapiFileApiT<CFileWriter> CRapiFileWriter;
#else
 class CRapiFileWriter : public CFileWriter
 {typedef aa __a;};
#endif
 
 
 
 
}; // TNB