IPC between 32 bit and 64 bit boost processes

Question

My platform is Visual Studio 2012 and I need to implement IPC between 32 bit and 64 bit processes. I have source code for all binaries but for several reasons one processes should remain 32 bit. I have looked into boost manual and it seems that Boost.Interprocess has everything I need - STL like structures and synchronization object. But couldn't find in docs anything about IPC between 32 bit and 64 bit processes.

Thank you.

Answer 1

Some IPC methods between 32 and 64 bit processes on Windows don't work, but sockets should work since they aren't dependent on the bitness of the connection.

Answer 2

COM can also be used for IPC between 32-bit and 64-bit processes. If you use the IDL and stick to compatible parameter types it will marshal your parameters and everything. For large blocks of data, pass a handle that can be duplicated and used with MapViewOfFile and you won't have to make a copy of the data. Be careful of thread apartment types.