initial checkin

MAC_SDK/Source/Shared/GlobalFunctions.cpp

@@ -0,0 +1,100 @@
+#include "All.h"
+#include "GlobalFunctions.h"
+#include "IO.h"
+
+/*
+#ifndef __GNUC_IA32__
+
+extern "C" BOOL GetMMXAvailable(void)
+{
+#ifdef ENABLE_ASSEMBLY
+
+    unsigned long nRegisterEDX;
+
+    try
+    {
+        __asm mov eax, 1
+        __asm CPUID
+        __asm mov nRegisterEDX, edx
+       }
+    catch(...)
+    {
+        return FALSE;
+    }
+
+    if (nRegisterEDX & 0x800000) 
+        RETURN_ON_EXCEPTION(__asm emms, FALSE)
+    else
+        return FALSE;
+
+    return TRUE;
+
+#else
+    return FALSE;
+#endif
+}
+
+#endif // #ifndef __GNUC_IA32__
+*/
+
+int ReadSafe(CIO * pIO, void * pBuffer, int nBytes)
+{
+    unsigned int nBytesRead = 0;
+    int nRetVal = pIO->Read(pBuffer, nBytes, &nBytesRead);
+    if (nRetVal == ERROR_SUCCESS)
+    {
+        if (nBytes != int(nBytesRead))
+            nRetVal = ERROR_IO_READ;
+    }
+
+    return nRetVal;
+}
+
+int WriteSafe(CIO * pIO, void * pBuffer, int nBytes)
+{
+    unsigned int nBytesWritten = 0;
+    int nRetVal = pIO->Write(pBuffer, nBytes, &nBytesWritten);
+    if (nRetVal == ERROR_SUCCESS)
+    {
+        if (nBytes != int(nBytesWritten))
+            nRetVal = ERROR_IO_WRITE;
+    }
+
+    return nRetVal;
+}
+
+BOOL FileExists(wchar_t * pFilename)
+{    
+    if (0 == wcscmp(pFilename, L"-")  ||  0 == wcscmp(pFilename, L"/dev/stdin"))
+        return TRUE;
+
+#ifdef _WIN32
+
+    BOOL bFound = FALSE;
+
+    WIN32_FIND_DATA WFD;
+    HANDLE hFind = FindFirstFile(pFilename, &WFD);
+    if (hFind != INVALID_HANDLE_VALUE)
+    {
+        bFound = TRUE;
+        CloseHandle(hFind);
+    }
+
+    return bFound;
+
+#else
+
+    CSmartPtr<char> spANSI(GetANSIFromUTF16(pFilename), TRUE);
+
+    struct stat b;
+
+    if (stat(spANSI, &b) != 0)
+        return FALSE;
+
+    if (!S_ISREG(b.st_mode))
+        return FALSE;
+
+    return TRUE;
+
+#endif
+}