/* prmcix.h:  MUTATOR CONTEXT (UNIX)
 *
 * $Id: //info.ravenbrook.com/project/mps/master/code/prmcix.h#10 $
 * 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/sig> */
  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 */


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