How do I pass a member function with object as an argument to pthread_create?

Question

How do I pass member function with object as an argument to pthread_create function?

Example:

    class A
    {
       public:
         A(){}

         void funcForThread( Person p ) {
          //code...
         }

         void createThread( Person p ) {
            pthread_t thread1;
            pthread_attr_init ( &attr );
            pthread_attr_setdetachstate ( &attr, PTHREAD_CREATE_JOINABLE );
            pthread_create ( &thread1, &attr, /* what to write here*/ ); // need to pass funcForThread and Person p object there
         }

       private:
         pthread_attr_t attr;
    };

This isn't C, since C doesn't have classes or member functions. — Barmar, Mar 16 '17 at 21:56
@Barmar I do not know what the proxy function is could you please provide an example? — stilltryingbutstillsofar, Mar 16 '17 at 21:58
yes, it is portable (and even more than `pthread` which has different signatures... if I remember correctly). — Jarod42, Mar 16 '17 at 22:16

score 0 · Answer 1 · answered Mar 16 '17 at 21:58

0

Just like this

void *
call_member(void *data)
{
    A *a = reinterpret_cast<A *>(data);
    a->member();

    return NULL;
}

and then,

pthread_create(&thread1, &attr, call_member, this);

answered Mar 16 '17 at 21:58

Iharob Al Asimi

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How do I pass a member function with object as an argument to pthread_create?

1 Answers1