Examining Microsoft's J/Direct

By Andrew Wilson

Dr. Dobb's Journal January 1998

// Native C Version
typedef struct _MEMORYSTATUS { 
    DWORD dwLength;     
    DWORD dwMemoryLoad; 
    DWORD dwTotalPhys;  
    DWORD dwAvailPhys;  
    DWORD dwTotalPageFile;
    DWORD dwAvailPageFile;
    DWORD dwTotalVirtual; 
    DWORD dwAvailVirtual; 
} MEMORYSTATUS; 
// J/Direct Version
/** @dll.struct() */
class MEMORYSTATUS
{
    public int dwLength;     
    public int dwMemoryLoad; 
    public int dwTotalPhys;  
    public int dwAvailPhys;  
    public int dwTotalPageFile;
    public int dwAvailPageFile;
    public int dwTotalVirtual; 
    public int dwAvailVirtual; 
}

Example 3: A native C data structure converted to a Java J/Direct structure.

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