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glibc  2.9
ucontext.h
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00001 /* Data structures for user-level context switching.  Generic version.
00002    Copyright (C) 1997,98,99,2001 Free Software Foundation, Inc.
00003    This file is part of the GNU C Library.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 /* This file's definitions suffice for any platform where all
00021    the machine-specific state is described in `struct sigcontext'.  */
00022 
00023 #ifndef _SYS_UCONTEXT_H
00024 #define _SYS_UCONTEXT_H     1
00025 
00026 #include <features.h>
00027 #include <signal.h>
00028 
00029 /* We need the signal context definitions even if they are not used
00030    included in <signal.h>.  */
00031 #include <bits/sigcontext.h>
00032 
00033 typedef struct sigcontext mcontext_t;
00034 
00035 /* Userlevel context.  */
00036 typedef struct ucontext
00037   {
00038     unsigned long int uc_flags;
00039     struct ucontext *uc_link;
00040     stack_t uc_stack;
00041     mcontext_t uc_mcontext;
00042     __sigset_t uc_sigmask;
00043   } ucontext_t;
00044 
00045 #endif /* sys/ucontext.h */