copy constructor on std::mutex

[jcyuan]

the generated wrapper class has a lot of this error:

SWIGEXPORT void SWIGSTDCALL CSharp_pag_Layer_Locker_set(void * jarg1, void * jarg2) {
  pag::Layer *arg1 = (pag::Layer *) 0 ;
  std::mutex arg2 ;
  std::mutex *argp2 ;
  
  arg1 = (pag::Layer *)jarg1; 
  argp2 = (std::mutex *)jarg2; 
  if (!argp2) {
    SWIG_CSharpSetPendingExceptionArgument(SWIG_CSharpArgumentNullException, "Attempt to dereference null std::mutex", 0);
    return ;
  }
  arg2 = *argp2;      // <---------------------------- this C2280
  if (arg1) (arg1)->locker = arg2;
}

copy/move is not allowed for std::mutex, so in this case what is the elegant / common way for my i file to fix this compiling error? (because i can't modify the 3rd project headers)

thanks so much.

[jcyuan]

ah, right, by the way another question is,
edited, deleted, please use one issue per question

[wsfulton]

An api with a std::mutex that is not copyable, assignable nor movable is not usable. You'll have to use %ignore on the methods that expect an instance of std::mutex to be passed by vaule.