1 '\" te 2 .\" Copyright 1989 AT&T Copyright (c) 2002, Sun Microsystems, Inc. All Rights Reserved 3 .\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License. 4 .\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License. 5 .\" When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner] 6 .TH UCONTEXT.H 3HEAD "Aug 30, 2002" 7 .SH NAME 8 ucontext.h, ucontext \- user context 9 .SH SYNOPSIS 10 .LP 11 .nf 12 #include <\fBucontext.h\fR> 13 .fi 14 15 .SH DESCRIPTION 16 .sp 17 .LP 18 The <\fBucontext.h\fR> header defines the \fBucontext_t\fR type as a structure 19 that includes at least the following members: 20 .sp 21 .in +2 22 .nf 23 ucontext_t uc_link 24 sigset_t uc_sigmask 25 stack_t uc_stack 26 mcontext_t uc_mcontext 27 .fi 28 .in -2 29 30 .sp 31 .LP 32 The \fBuc_link\fR member is a pointer to the context that to be resumed when 33 this context returns. If \fBuc_link\fR is equal to 0, this context is the main 34 context and the process exits when this context returns. 35 .sp 36 .LP 37 The \fBuc_sigmask\fR member defines the set of signals that are blocked when 38 this context is active. See \fBsigprocmask\fR(2). 39 .sp 40 .LP 41 The \fBuc_stack\fR member defines the stack used by this context. See 42 \fBsigaltstack\fR(2). 43 .sp 44 .LP 45 The \fBuc_mcontext\fR member contains the saved set of machine registers and 46 any implementation-specific context data. Portable applications should not 47 modify or access \fBuc_mcontext\fR. 48 .SH ATTRIBUTES 49 .sp 50 .LP 51 See \fBattributes\fR(5) for descriptions of the following attributes: 52 .sp 53 54 .sp 55 .TS 56 box; 57 c | c 58 l | l . 59 ATTRIBUTE TYPE ATTRIBUTE VALUE 60 _ 61 Interface Stability Standard 62 .TE 63 64 .SH SEE ALSO 65 .sp 66 .LP 67 \fBgetcontext\fR(2), \fBsigaction\fR(2), \fBsigaltstack\fR(2), 68 \fBsigprocmask\fR(2), \fBmakecontext\fR(3C), \fBattributes\fR(5), 69 \fBstandards\fR(5)