diff options
Diffstat (limited to 'hurd')
| -rw-r--r-- | hurd/hurd/signal.h | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/hurd/hurd/signal.h b/hurd/hurd/signal.h index 6bc7103b0a..5d116fb2fd 100644 --- a/hurd/hurd/signal.h +++ b/hurd/hurd/signal.h @@ -40,11 +40,6 @@ #include <setjmp.h> /* For `jmp_buf'. */ #include <spin-lock.h> struct hurd_signal_preemptor; /* <hurd/sigpreempt.h> */ -#if defined __USE_EXTERN_INLINES && defined _LIBC -# if IS_IN (libc) || IS_IN (libpthread) -# include <sigsetops.h> -# endif -#endif /* Full details of a signal. */ @@ -157,33 +152,6 @@ extern void _hurd_sigstate_unlock (struct hurd_sigstate *ss); /* Used by libpthread to remove stale sigstate structures. */ extern void _hurd_sigstate_delete (thread_t thread); -#ifndef _HURD_SIGNAL_H_EXTERN_INLINE -#define _HURD_SIGNAL_H_EXTERN_INLINE __extern_inline -#endif - -#if defined __USE_EXTERN_INLINES && defined _LIBC -# if IS_IN (libc) -_HURD_SIGNAL_H_EXTERN_INLINE struct hurd_sigstate * -_hurd_self_sigstate (void) -{ - struct hurd_sigstate *ss = THREAD_GETMEM (THREAD_SELF, _hurd_sigstate); - if (__glibc_unlikely (ss == NULL)) - { - thread_t self = __mach_thread_self (); - - /* The thread variable is unset; this must be the first time we've - asked for it. In this case, the critical section flag cannot - possible already be set. Look up our sigstate structure the slow - way. */ - ss = _hurd_thread_sigstate (self); - THREAD_SETMEM (THREAD_SELF, _hurd_sigstate, ss); - __mach_port_deallocate (__mach_task_self (), self); - } - return ss; -} -# endif -#endif - struct machine_thread_all_state; extern mach_port_t _hurdsig_abort_rpcs (struct hurd_sigstate *ss, int signo, int sigthread, @@ -215,63 +183,8 @@ extern int _hurd_core_limit; avoid unexpectingly exposing EINTR to the application. */ extern void *_hurd_critical_section_lock (void); - -#if defined __USE_EXTERN_INLINES && defined _LIBC -# if IS_IN (libc) -_HURD_SIGNAL_H_EXTERN_INLINE void * -_hurd_critical_section_lock (void) -{ - struct hurd_sigstate *ss; - -#ifdef __LIBC_NO_TLS - if (__LIBC_NO_TLS ()) - /* TLS is currently initializing, no need to enter critical section. */ - return NULL; -#endif - - ss = _hurd_self_sigstate (); - - if (! __spin_try_lock (&ss->critical_section_lock)) - /* We are already in a critical section, so do nothing. */ - return NULL; - - /* With the critical section lock held no signal handler will run. - Return our sigstate pointer; this will be passed to - _hurd_critical_section_unlock to unlock it. */ - return ss; -} -# endif -#endif - extern void _hurd_critical_section_unlock (void *our_lock); -#if defined __USE_EXTERN_INLINES && defined _LIBC -# if IS_IN (libc) -_HURD_SIGNAL_H_EXTERN_INLINE void -_hurd_critical_section_unlock (void *our_lock) -{ - if (our_lock == NULL) - /* The critical section lock was held when we began. Do nothing. */ - return; - else - { - /* It was us who acquired the critical section lock. Unlock it. */ - struct hurd_sigstate *ss = (struct hurd_sigstate *) our_lock; - sigset_t pending; - _hurd_sigstate_lock (ss); - __spin_unlock (&ss->critical_section_lock); - pending = _hurd_sigstate_pending (ss) & ~ss->blocked; - _hurd_sigstate_unlock (ss); - if (__glibc_unlikely (!__sigisemptyset (&pending))) - /* There are unblocked signals pending, which weren't - delivered because we were in the critical section. - Tell the signal thread to deliver them now. */ - __msg_sig_post (_hurd_msgport, 0, 0, __mach_task_self ()); - } -} -# endif -#endif - /* Convenient macros for simple uses of critical sections. These two must be used as a pair at the same C scoping level. */ |