sysdeps/mach/hurd/sysdep-cancel.h

   1 #include <sysdep.h>
   2
   3 int __pthread_enable_asynccancel (void);
   4 void __pthread_disable_asynccancel (int oldtype);
   5
   6 #pragma weak __pthread_enable_asynccancel
   7 #pragma weak __pthread_disable_asynccancel
   8
   9 /* Always multi-thread (since there's at least the sig handler), but no
  10    handling enabled.  */
  11 #define SINGLE_THREAD_P (0)
  12 #define RTLD_SINGLE_THREAD_P (0)
  13
  14 #define LIBC_CANCEL_ASYNC() ({ \
  15         int __cancel_oldtype = 0; \
  16         if (__pthread_enable_asynccancel) \
  17                 __cancel_oldtype = __pthread_enable_asynccancel(); \
  18         __cancel_oldtype; \
  19 })
  20
  21 #define LIBC_CANCEL_RESET(val) do { \
  22         if (__pthread_disable_asynccancel) \
  23                 __pthread_disable_asynccancel (val); \
  24 } while (0)