rb_thread_create 2840 ext/tk/tcltklib.c             evloop = rb_thread_create(watchdog_evloop_launcher,
rb_thread_create 2994 ext/tk/tcltklib.c     th = rb_thread_create(_thread_call_proc, (void*)q);
rb_thread_create  455 include/ruby/intern.h VALUE rb_thread_create(VALUE (*)(ANYARGS), void*);
rb_thread_create 1096 process.c          VALUE watcher = rb_thread_create(detach_process_watcher, (void*)(VALUE)pid);