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/* prmcix.h:  MUTATOR CONTEXT (UNIX)
 *
 * $Id: //info.ravenbrook.com/project/mps/master/code/prmcix.h#12 $
 * Copyright (c) 2001-2020 Ravenbrook Limited.  See end of file for license.
 *
 * .readership: MPS developers.
 */

#ifndef prmcix_h
#define prmcix_h

#include "mpm.h"

#include <signal.h> /* siginfo_t -- see .feature.li in config.h */
#include <ucontext.h> /* ucontext_t */

typedef struct MutatorContextStruct {
  Sig sig;                      /* design.mps.sig.field */
  MutatorContextVar var;        /* Discriminator. */
  siginfo_t *info;              /* Signal info, if stopped by protection
                                 * fault; NULL if stopped by thread manager. */
  ucontext_t *ucontext;
} MutatorContextStruct;

extern void MutatorContextInitFault(MutatorContext context, siginfo_t *info, ucontext_t *ucontext);
extern void MutatorContextInitThread(MutatorContext context, ucontext_t *ucontext);

#endif /* prmcix_h */


/* C. COPYRIGHT AND LICENSE
 *
 * Copyright (C) 2001-2020 Ravenbrook Limited <https://www.ravenbrook.com/>.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the
 *    distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */