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/* sigstack, sigaltstack definitions.

   Copyright (C) 1998, 1999 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, write to the Free

   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA

   02111-1307 USA.  */

#ifndef _SIGNAL_H

# error "Never include this file directly.  Use <signal.h> instead"

#endif

/* Structure describing a signal stack (obsolete).  */

struct sigstack

  {

    void *ss_sp;                /* Signal stack pointer.  */

    int ss_onstack;             /* Nonzero if executing on this stack.  */

  };

/* Possible values for `ss_flags.'.  */

enum

{

  SS_ONSTACK = 1,

#define SS_ONSTACK      SS_ONSTACK

  SS_DISABLE

#define SS_DISABLE      SS_DISABLE

};

/* Minimum stack size for a signal handler.  */

#define MINSIGSTKSZ     2048

/* System default stack size.  */

#define SIGSTKSZ        8192

/* Alternate, preferred interface.  */

typedef struct sigaltstack

  {

    void *ss_sp;

    int ss_flags;

    size_t ss_size;

  } stack_t;