Use WinRT ThreadEmulation for Threading on WinRT

[stammen]

http://blogs.msdn.com/b/shawnhar/archive/2012/03/12/createthread-for-windows-8-metro.aspx

Supports CreateThread(). I have used it in other projects.

[martell]

I can't use c++ code in libcurl as it will give hundreds of errors
I'll try and put it in winrtsock and export it.
That way libwebsockets can use it later.

We may want to look at the wrapper the mingw-w64 project has for some functions?

[stammen]

You just need to write a c wrapper to the cpp code. Something similar to

http://blog.eikke.com/index.php/ikke/2005/11/03/using_c_classes_in_c.html

Since you are only dealing with a HANDLE returned by ThreadEmulation and simple Primitive data types (BOOL, VOID, DWORD), the C wrapper should be pretty simple.

[martell]

Ahh I see. I was looking at the VLC port and they do something similar. Thanks Dale this seems doable now

[martell]

2>asyn-thread.obj : error LNK2001: unresolved external symbol _InitializeCriticalSectionEx
2>connect.obj : error LNK2001: unresolved external symbol _CreateEventEx
2>curl_threads.obj : error LNK2001: unresolved external symbol __beginthreadex
2>timeval.obj : error LNK2001: unresolved external symbol _GetModuleHandleW

Down to 4 errors now. May need input on the winrtsock SO_KEEPALIVEFLAG
Will resolve these 4 first

[stammen]

FYI GetModuleHandle(W)(Ex) is not supported on WinRT

On WinRT you should use LoadPackagedLibrary to load a DLL and GetProcAddress to get the function. Look at

https://github.com/stammen/angleproject/blob/dev/src/libGLESv2/renderer/Renderer.cpp for an example

[martell]

Okay I've fixed all the errors, what happens is if you #include from a c file instead of a cpp file you don't get half he windows api on rt because a #define win32_rt doesn't get defined. I just prototyped the functions needed. It feels like MS headers are trying and force you to use c++ :/ Anyway this is now solved.

I didn't need GetModuleHandle in the end :)

We now have a dll and I have merged it in to cocos2d-x. I'll make a new pull request with WinRT support.

I may chaned the thread emulation to what you have above because it crashes.
Then the last thing I have to do is add the KEEP ALIVE code in winsockrt.

Not quite sure how to add this but it should at least link on winrt and cocos2d-x for now :)

[martell]

Note cocos2d/cocos2d-x#5247