opensolaris man page for ucontext

ucontext.h(3HEAD)						      Headers							 ucontext.h(3HEAD)

NAME
       ucontext.h, ucontext - user context

SYNOPSIS
       #include <ucontext.h>

DESCRIPTION
       The  <ucontext.h> header defines the ucontext_t type as a structure that includes at least the following members:

	 ucontext_t  uc_link
	 sigset_t    uc_sigmask
	 stack_t     uc_stack
	 mcontext_t  uc_mcontext

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

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

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

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

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+

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

SunOS 5.11							    30 Aug 2002 						 ucontext.h(3HEAD)