Headers                                         ucontext.h(3HEAD)



NAME
     ucontext.h, ucontext - user context

SYNOPSIS
     #include 


DESCRIPTION
     The   header defines the ucontextt  type  as  a
     structure that includes at least the following members:

       ucontextt  uclink
       sigsett    ucsigmask
       stackt     ucstack
       mcontextt  ucmcontext



     The uclink member is a pointer to the context  that  to  be
     resumed when this context returns. If uclink is equal to 0,
     this context is the main context and the process exits  when
     this context returns.


     The ucsigmask member defines the set of  signals  that  are
     blocked when this context is active. See sigprocmask(2).


     The ucstack member defines the stack used by this  context.
     See sigaltstack(2).


     The ucmcontext member contains the  saved  set  of  machine
     registers  and  any  implementation-specific  context  data.
     Portable  applications   should   not   modify   or   access
     ucmcontext.

ATRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:



     
           ATRIBUTE TYPE               ATRIBUTE VALUE       
    
     Interface Stability          Standard                    
    


SEE ALSO




SunOS 5.11          Last change: 30 Aug 2002                    1






Headers                                         ucontext.h(3HEAD)



     getcontext(2), sigaction(2), sigaltstack(2), sigprocmask(2),
     makecontext(3C), attributes(5), standards(5)





















































SunOS 5.11          Last change: 30 Aug 2002                    2