public unsafe static void FreeBString(IntPtr ptr)
{
var releaseDelegate = DelegateRuntimeInfo <DestructIndirect> .RcfpwDelegate;
if (ptr == (IntPtr)0)
{
return;
}
IntPtr *vtable = *((IntPtr **)ptr);
// call destructor
IntPtr releaseFunctionPtr = vtable[0];
if (releaseFunctionPtr == BStringVTable.vtable[0])
{
// calli on a function ptr created by GetFunctionPointerForDelegate crashes
// on .NET Core for some reason
BStringVTable.BStringDestructor(ptr);
}
else
{
releaseDelegate(releaseFunctionPtr, ptr);
}
}
public unsafe static IntPtr AllocBString(string str)
{
if (str == null)
{
return(IntPtr.Zero);
}
byte[] bytes = System.Text.Encoding.UTF8.GetBytes(str);
var bstr = BStringVTable.Create(bytes.Length);
byte * dataptr = GetBStringDataPtr(bstr);
Marshal.Copy(bytes, 0, (IntPtr)dataptr, bytes.Length);
return(bstr);
}
public unsafe static IntPtr AllocZeroBString(int length)
{
return(BStringVTable.Create(length));
}