view src/vdb.h @ 5602:c9e5612f5424

Support the MP library on recent FreeBSD, have it pass relevant tests. src/ChangeLog addition: 2011-11-26 Aidan Kehoe <kehoea@parhasard.net> * number-mp.c (bignum_to_string): Don't overwrite the accumulator we've just set up for this function. * number-mp.c (BIGNUM_TO_TYPE): mp_itom() doesn't necessarily do what this code used to think with negative numbers, it can treat them as unsigned ints. Subtract numbers from bignum_zero instead of multiplying them by -1 to convert them to their negative equivalents. * number-mp.c (bignum_to_int): * number-mp.c (bignum_to_uint): * number-mp.c (bignum_to_long): * number-mp.c (bignum_to_ulong): * number-mp.c (bignum_to_double): Use the changed BIGNUM_TO_TYPE() in these functions. * number-mp.c (bignum_ceil): * number-mp.c (bignum_floor): In these functions, be more careful about rounding to positive and negative infinity, respectively. Don't use the sign of QUOTIENT when working out out whether to add or subtract one, rather use the sign QUOTIENT would have if arbitrary-precision division were done. * number-mp.h: * number-mp.h (MP_GCD): Wrap #include <mp.h> in BEGIN_C_DECLS/END_C_DECLS. * number.c (Fbigfloat_get_precision): * number.c (Fbigfloat_set_precision): Don't attempt to call XBIGFLOAT_GET_PREC if this build doesn't support big floats.
author Aidan Kehoe <kehoea@parhasard.net>
date Sat, 26 Nov 2011 17:59:14 +0000
parents 308d34e9f07d
children
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/* Virtual diry bit implementation for XEmacs.
   Copyright (C) 2005 Marcus Crestani.

This file is part of XEmacs.

XEmacs is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation, either version 3 of the License, or (at your
option) any later version.

XEmacs 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 General Public License
for more details.

You should have received a copy of the GNU General Public License
along with XEmacs.  If not, see <http://www.gnu.org/licenses/>. */

/* Synched up with: Not in FSF. */

#include "lisp.h"

#ifndef INCLUDED_vdb_h_
#define INCLUDED_vdb_h_


/*--- prototypes -------------------------------------------------------*/

BEGIN_C_DECLS

/* Platform dependent signal handling: */

/* Install the platform-dependent signal handler. */
void vdb_install_signal_handler (void);

/* Platform dependent memory protection. */
void vdb_protect (void *ptr, EMACS_INT len);
void vdb_unprotect (void *ptr, EMACS_INT len);



/* Common (platform independent) virtual diry bit stuff: */

/* Start the write barrier.  This function is called when a garbage
   collection is suspendend and the client is resumed. */
void vdb_start_dirty_bits_recording (void);
/* Stop the write barrier.  This function is called when the client is
   suspendend and garbage collection is resumed. */
void vdb_stop_dirty_bits_recording (void);

/* Record page faults: Add the object pointed to by addr to the write
   barrer's internal data structure that stores modified objects.
   This function is called by the write barrier's fault handler. */
void vdb_designate_modified (void *addr);

/* Propagate page faults to garbage collector: Read out the write
   barrier's internal data structure that stores modified objects and
   pass the information to the garbage collector.  This function is
   called by vdb_stop_dirty_bits_recording().  Return how many objects
   have to be re-examined by the garbage collector. */
int vdb_read_dirty_bits (void);

/* Provides Lisp functions for testing vdb implementation. */
void syms_of_vdb (void);

END_C_DECLS

#endif /* INCLUDED_vdb_h_ */