1 #ifndef GC_DARWIN_STOP_WORLD_H
2 #define GC_DARWIN_STOP_WORLD_H
3 
4 #if !defined(GC_DARWIN_THREADS)
5 #error darwin_stop_world.h included without GC_DARWIN_THREADS defined
6 #endif
7 
8 #include <mach/mach.h>
9 #include <mach/thread_act.h>
10 
11 struct thread_stop_info {
12     mach_port_t mach_thread;
13 };
14 
15 struct GC_mach_thread {
16   thread_act_t thread;
17   int already_suspended;
18 };
19 
20 void GC_darwin_register_mach_handler_thread(mach_port_t thread);
21 
22 #endif
23