initial checkin

MAC_SDK/Source/Shared/WinFileIO.cpp

@@ -0,0 +1,162 @@
+#include "All.h"
+
+#ifdef IO_USE_WIN_FILE_IO
+
+#include "WinFileIO.h"
+#include <windows.h>
+#include "CharacterHelper.h"
+
+CWinFileIO::CWinFileIO()
+{
+    m_hFile = INVALID_HANDLE_VALUE;
+    memset(m_cFileName, 0, MAX_PATH);
+    m_bReadOnly = FALSE;
+}
+
+CWinFileIO::~CWinFileIO()
+{
+    Close();
+}
+
+int CWinFileIO::Open(const wchar_t * pName)
+{
+    Close();
+
+    #ifdef _UNICODE
+        CSmartPtr<wchar_t> spName((wchar_t *) pName, TRUE, FALSE);    
+    #else
+        CSmartPtr<char> spName(GetANSIFromUTF16(pName), TRUE);
+    #endif
+
+    m_hFile = ::CreateFile(spName, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+    if (m_hFile == INVALID_HANDLE_VALUE) 
+    {
+        m_hFile = ::CreateFile(spName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+        if (m_hFile == INVALID_HANDLE_VALUE) 
+        {
+            return -1;
+        }
+        else 
+        {
+            m_bReadOnly = TRUE;
+        }
+    }
+    else
+    {
+        m_bReadOnly = FALSE;
+    }
+    
+    wcscpy(m_cFileName, pName);
+
+    return 0;
+}
+
+int CWinFileIO::Close()
+{
+    SAFE_FILE_CLOSE(m_hFile);
+
+    return 0;
+}
+    
+int CWinFileIO::Read(void * pBuffer, unsigned int nBytesToRead, unsigned int * pBytesRead)
+{
+    unsigned int nTotalBytesRead = 0;
+    int nBytesLeft = nBytesToRead;
+    BOOL bRetVal = TRUE;
+    unsigned char * pucBuffer = (unsigned char *) pBuffer;
+
+    *pBytesRead = 1;
+    while ((nBytesLeft > 0) && (*pBytesRead > 0) && bRetVal)
+    {
+        bRetVal = ::ReadFile(m_hFile, &pucBuffer[nBytesToRead - nBytesLeft], nBytesLeft, (unsigned long *) pBytesRead, NULL);
+        if (bRetVal == TRUE)
+        {
+            nBytesLeft -= *pBytesRead;
+            nTotalBytesRead += *pBytesRead;
+        }
+    }
+    
+    *pBytesRead = nTotalBytesRead;
+    
+    return (bRetVal == FALSE) ? ERROR_IO_READ : 0;
+}
+
+int CWinFileIO::Write(const void * pBuffer, unsigned int nBytesToWrite, unsigned int * pBytesWritten)
+{
+    BOOL bRetVal = WriteFile(m_hFile, pBuffer, nBytesToWrite, (unsigned long *) pBytesWritten, NULL);
+
+    if ((bRetVal == 0) || (*pBytesWritten != nBytesToWrite))
+        return ERROR_IO_WRITE;
+    else
+        return 0;
+}
+    
+int CWinFileIO::Seek(int nDistance, unsigned int nMoveMode)
+{
+    SetFilePointer(m_hFile, nDistance, NULL, nMoveMode);
+    return 0;
+}
+    
+int CWinFileIO::SetEOF()
+{
+    BOOL bRetVal = SetEndOfFile(m_hFile);
+    if (bRetVal == FALSE)
+    {
+        return -1;
+    }
+    else
+    {
+        return 0;
+    }
+}
+
+int CWinFileIO::GetPosition()
+{
+    return SetFilePointer(m_hFile, 0, NULL, FILE_CURRENT);
+}
+
+int CWinFileIO::GetSize()
+{
+    return GetFileSize(m_hFile, NULL);
+}
+
+int CWinFileIO::GetName(wchar_t * pBuffer)
+{
+    wcscpy(pBuffer, m_cFileName);
+    return 0;
+}
+
+int CWinFileIO::Create(const wchar_t * pName)
+{
+    Close();
+
+    #ifdef _UNICODE
+        CSmartPtr<wchar_t> spName((wchar_t *) pName, TRUE, FALSE);    
+    #else
+        CSmartPtr<char> spName(GetANSIFromUTF16(pName), TRUE);
+    #endif
+
+    m_hFile = CreateFile(spName, GENERIC_WRITE | GENERIC_READ, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
+    if (m_hFile == INVALID_HANDLE_VALUE) { return -1; }
+
+    m_bReadOnly = FALSE;
+    
+    wcscpy(m_cFileName, pName);
+
+    return 0;
+}
+
+int CWinFileIO::Delete()
+{
+    Close();
+
+    #ifdef _UNICODE
+        CSmartPtr<wchar_t> spName(m_cFileName, TRUE, FALSE);    
+    #else
+        CSmartPtr<char> spName(GetANSIFromUTF16(m_cFileName), TRUE);
+    #endif
+
+    return DeleteFile(spName) ? 0 : -1;
+}
+
+#endif // #ifdef IO_USE_WIN_FILE_IO