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/* mpscvm.h: RAVENBROOK MEMORY POOL SYSTEM C INTERFACE TO CONFIGURA VIRTUAL MACHINE
 *
 * $Id: //info.ravenbrook.com/project/mps/custom/cet/branch/2016-09-13/job004020/code/mpscvm.h#1 $
 * Copyright (c) 2013 Ravenbrook Limited.  See end of file for license.
 *
 * This file defines interfaces to miscellaneous extensions to the MPS
 * for interfacing to the Configura Virtual Machine.  It is not part
 * of the open source MPS.
 *
 * .readership: CVM developers, MPS developers.
 */

#ifndef mpscvm_h
#define mpscvm_h

#include "mps.h"

/* Callbacks indicating that the arena has extended or contracted.
   These are used to register chunks with RtlInstallFunctionTableCallback
   <http://msdn.microsoft.com/en-us/library/windows/desktop/ms680595%28v=vs.85%29.aspx>
   so that CVM can unwind the stack through functions in the arena. */

typedef void (*mps_arena_extended_t)(mps_arena_t, mps_addr_t, size_t);
typedef void (*mps_arena_contracted_t)(mps_arena_t, mps_addr_t, size_t);

extern const struct mps_key_s _mps_key_arena_extended;
#define MPS_KEY_ARENA_EXTENDED (&_mps_key_arena_extended)
#define MPS_KEY_ARENA_EXTENDED_FIELD fun

extern const struct mps_key_s _mps_key_arena_contracted;
#define MPS_KEY_ARENA_CONTRACTED (&_mps_key_arena_contracted)
#define MPS_KEY_ARENA_CONTRACTED_FIELD fun

extern const struct mps_key_s _mps_key_ap_hash_arrays;
#define MPS_KEY_AP_HASH_ARRAYS (&_mps_key_ap_hash_arrays)
#define MPS_KEY_AP_HASH_ARRAYS_FIELD b

/* mps_addr_object -- find client pointer to object containing addr */
mps_res_t mps_addr_object(mps_addr_t *p_o, mps_arena_t arena, mps_addr_t addr);

/* number of arenas, used by mps_unsafe_unprotect */
extern mps_word_t mps_arena_count(void);

#endif /* mpscvm_h */

/* C. COPYRIGHT AND LICENSE
 *
 * Copyright (C) 2011 Ravenbrook Limited <http://www.ravenbrook.com/>.
 * All rights reserved.  This is an open source license.  Contact
 * Ravenbrook for commercial licensing options.
 * 
 * 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.
 * 
 * 3. Redistributions in any form must be accompanied by information on how
 * to obtain complete source code for this software and any accompanying
 * software that uses this software.  The source code must either be
 * included in the distribution or be available for no more than the cost
 * of distribution plus a nominal fee, and must be freely redistributable
 * under reasonable conditions.  For an executable file, complete source
 * code means the source code for all modules it contains. It does not
 * include source code for modules or files that typically accompany the
 * major components of the operating system on which the executable file
 * runs.
 * 
 * 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, FITNESS FOR A PARTICULAR
 * PURPOSE, OR NON-INFRINGEMENT, ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT HOLDERS AND 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.
 */