使用SWIG为C＃生成AnyCPU程序集

Question

is it possible to create a AnyCpu assembly with SWIG? I have both the x86 and x64 binaries compiled (c++) and I'm able to generate a SWIG P/Invoke Wrapper. But the wrapper is dependent on the invoked native dll (which is CPU specific). But I like the idea of let the executable decide instead of having two different executables. I'm would put the dlls in seperate folders (eg named x64/x86) if this is helpful. Or do I have to write a handmade wrapper in C# which decides to load the right dll?

Thanx for input.

Answer 1

It seems you have to roll you own wrapper.

I came across the solution CLRZMQ was using for similar reasons.

They solved it pretty well by embedding both .dll versions and extracting those accoring to the current platform:

They determined the running platform by using Environment.Is64BitProcess and adding a x86 or x64 suffixe + version string before extracting and loading the correct dll.

Here is their solution to the problem and here is the corresponding discussion which gives different ideas on how to solve it. Also interesting is their SafeLibraryHandle which I just found out about.