@ -1,4 +1,4 @@
/* $OpenBSD: pthread.h,v 1.2 2017/10/28 21:23:14 guenther Exp $ */
/* $OpenBSD: pthread.h,v 1.3 2017/11/04 22:53:57 jca Exp $ */
/*
* Copyright ( c ) 1993 , 1994 by Chris Provenzano , proven @ mit . edu
@ -179,41 +179,10 @@ enum pthread_mutextype {
# define PTHREAD_MUTEX_STRICT_NP PTHREAD_MUTEX_STRICT_NP
# define PTHREAD_MUTEX_DEFAULT PTHREAD_MUTEX_STRICT_NP
/*
* On - stack structure for the pthread_cleanup_ { push , pop } macros
* The actual values are xor ' ed with random cookies .
*/
struct __thread_cleanup {
__uintptr_t __tc_magic ;
__uintptr_t __tc_next ;
__uintptr_t __tc_fn ;
__uintptr_t __tc_arg ;
} ;
/*
* These macro must be used in pairs in the same scope , such that
* pthread_cleanup_push ( ) can start a block declaring a variable and
* pthread_cleanup_pop ( ) closes that same block . Any other usage
* violates the requirements of the POSIX and Single UNIX standards .
*/
# define pthread_cleanup_push(cb, arg) \
{ /* MATCHED BY CLOSE BRACKET IN pthread_cleanup_pop() */ \
struct __thread_cleanup __tc ; \
_thread_cleanup_push ( cb , arg , & __tc ) ;
# define pthread_cleanup_pop(execute) \
_thread_cleanup_pop ( execute , & __tc ) ; \
} /* MATCHED BY OPEN BRACKET IN pthread_cleanup_push() */
/*
* Thread function prototype definitions :
*/
__BEGIN_DECLS
void _thread_cleanup_pop ( int _execute , struct __thread_cleanup * _tc ) ;
void _thread_cleanup_push ( void ( * _fn ) ( void * ) , void * _arg ,
struct __thread_cleanup * _tc ) ;
int pthread_atfork ( void ( * ) ( void ) , void ( * ) ( void ) , void ( * ) ( void ) ) ;
int pthread_attr_destroy ( pthread_attr_t * ) ;
int pthread_attr_getstack ( const pthread_attr_t * ,
@ -228,6 +197,8 @@ int pthread_attr_setstack(pthread_attr_t *, void *, size_t);
int pthread_attr_setstackaddr ( pthread_attr_t * , void * ) ;
int pthread_attr_setguardsize ( pthread_attr_t * , size_t ) ;
int pthread_attr_setdetachstate ( pthread_attr_t * , int ) ;
void pthread_cleanup_pop ( int ) ;
void pthread_cleanup_push ( void ( * ) ( void * ) , void * routine_arg ) ;
int pthread_condattr_destroy ( pthread_condattr_t * ) ;
int pthread_condattr_init ( pthread_condattr_t * ) ;