def testReadDouble(self):
data = Marshal.AllocHGlobal(CPyMarshal.DoubleSize)
doubleStruct = DoubleStruct(2.2e22)
Marshal.StructureToPtr(doubleStruct, data, False)
self.assertEquals(CPyMarshal.ReadDouble(data), 2.2e22)
Marshal.FreeHGlobal(data)
def MakeItemsTablePtr(items):
if not items:
return IntPtr.Zero, lambda: None
itemtype = items[0].__class__
typesize = Marshal.SizeOf(itemtype())
size = typesize * (len(items) + 1)
tablePtr = Marshal.AllocHGlobal(size)
CPyMarshal.Zero(tablePtr, size)
for i, item in enumerate(items):
Marshal.StructureToPtr(item, OffsetPtr(tablePtr, typesize * i), False)
def dealloc():
Marshal.DestroyStructure(tablePtr, itemtype)
Marshal.FreeHGlobal(tablePtr)
return tablePtr, dealloc