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 sigalt‐
stack(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 ALSOgetcontext(2), sigaction(2), sigaltstack(2), sigprocmask(2), makecon‐
text(3C), attributes(5), standards(5)SunOS 5.10 30 Aug 2002 ucontext.h(3HEAD)