protected unsafe byte *GetSharedMemory(int iSize)
{
// Build our name
String strName = GetMemorySectionName();
IntPtr mappedFileHandle;
// This gets shared memory for our map. If its can't, it gives us clean memory.
Byte *pMemorySection = EncodingTable.nativeCreateOpenFileMapping(strName, iSize, out mappedFileHandle);
Contract.Assert(pMemorySection != null,
"[BaseCodePageEncoding.GetSharedMemory] Expected non-null memory section to be opened");
// If that failed, we have to die.
if (pMemorySection == null)
{
throw new OutOfMemoryException(
Environment.GetResourceString("Arg_OutOfMemoryException"));
}
// if we have null file handle. this means memory was allocated after
// failing to open the mapped file.
if (mappedFileHandle != IntPtr.Zero)
{
safeMemorySectionHandle = new SafeViewOfFileHandle((IntPtr)pMemorySection, true);
safeFileMappingHandle = new SafeFileMappingHandle(mappedFileHandle, true);
}
return(pMemorySection);
}
protected unsafe byte *GetSharedMemory(int iSize)
{
IntPtr ptr;
byte * numPtr = EncodingTable.nativeCreateOpenFileMapping(this.GetMemorySectionName(), iSize, out ptr);
if (numPtr == null)
{
throw new OutOfMemoryException(Environment.GetResourceString("Arg_OutOfMemoryException"));
}
if (ptr != IntPtr.Zero)
{
this.safeMemorySectionHandle = new SafeViewOfFileHandle((IntPtr)numPtr, true);
this.safeFileMappingHandle = new SafeFileMappingHandle(ptr, true);
}
return(numPtr);
}
protected unsafe byte *GetSharedMemory(int iSize)
{
IntPtr mappedFileHandle;
byte * openFileMapping = EncodingTable.nativeCreateOpenFileMapping(this.GetMemorySectionName(), iSize, out mappedFileHandle);
if ((IntPtr)openFileMapping == IntPtr.Zero)
{
throw new OutOfMemoryException(Environment.GetResourceString("Arg_OutOfMemoryException"));
}
if (mappedFileHandle != IntPtr.Zero)
{
this.safeMemorySectionHandle = new SafeViewOfFileHandle((IntPtr)((void *)openFileMapping), true);
this.safeFileMappingHandle = new SafeFileMappingHandle(mappedFileHandle, true);
}
return(openFileMapping);
}