=================================================================== RCS file: /home/cvs/OpenXM_contrib/gmp/Attic/stack-alloc.c,v retrieving revision 1.1.1.1 retrieving revision 1.1.1.2 diff -u -p -r1.1.1.1 -r1.1.1.2 --- OpenXM_contrib/gmp/Attic/stack-alloc.c 2000/01/10 15:35:22 1.1.1.1 +++ OpenXM_contrib/gmp/Attic/stack-alloc.c 2000/09/09 14:12:16 1.1.1.2 @@ -1,43 +1,63 @@ /* Stack allocation routines. This is intended for machines without support for the `alloca' function. -Copyright (C) 1996 Free Software Foundation, Inc. +Copyright (C) 1996, 1997, 1999, 2000 Free Software Foundation, Inc. This file is part of the GNU MP Library. The GNU MP Library is free software; you can redistribute it and/or modify -it under the terms of the GNU Library General Public License as published by -the Free Software Foundation; either version 2 of the License, or (at your +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 MP 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 Library General Public +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 Library General Public License +You should have received a copy of the GNU Lesser General Public License along with the GNU MP Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "stack-alloc.h" +#define __need_size_t +#include +#undef __need_size_t + +/* gmp-impl.h and stack-alloc.h conflict when not USE_STACK_ALLOC, so these + declarations are copied here */ +#if __STDC__ +extern void * (*__gmp_allocate_func) (size_t); +extern void (*__gmp_free_func) (void *, size_t); +#else +extern void * (*__gmp_allocate_func) (); +extern void (*__gmp_free_func) (); +#endif + typedef struct tmp_stack tmp_stack; -void *malloc (); static unsigned long max_total_allocation = 0; static unsigned long current_total_allocation = 0; static tmp_stack xxx = {&xxx, &xxx, 0}; static tmp_stack *current = &xxx; +/* The rounded size of the header of each allocation block. */ +#define HSIZ ((sizeof (tmp_stack) + __TMP_ALIGN - 1) & -__TMP_ALIGN) + /* Allocate a block of exactly bytes. This should only be called through the TMP_ALLOC macro, which takes care of rounding/alignment. */ void * -__tmp_alloc (size) +#if __STDC__ +__gmp_tmp_alloc (unsigned long size) +#else +__gmp_tmp_alloc (size) unsigned long size; +#endif { - void *this; + void *that; if (size > (char *) current->end - (char *) current->alloc_point) { @@ -56,43 +76,52 @@ __tmp_alloc (size) /* We need more temporary memory than ever before. Increase for future needs. */ now = now * 3 / 2; - chunk_size = now - current_total_allocation + sizeof (tmp_stack); + chunk_size = now - current_total_allocation + HSIZ; current_total_allocation = now; max_total_allocation = current_total_allocation; } else { - chunk_size = max_total_allocation - current_total_allocation + sizeof (tmp_stack); + chunk_size = max_total_allocation - current_total_allocation + HSIZ; current_total_allocation = max_total_allocation; } - chunk = malloc (chunk_size); - header = chunk; + chunk = (*__gmp_allocate_func) (chunk_size); + header = (tmp_stack *) chunk; header->end = (char *) chunk + chunk_size; - header->alloc_point = (char *) chunk + sizeof (tmp_stack); + header->alloc_point = (char *) chunk + HSIZ; header->prev = current; current = header; } - this = current->alloc_point; - current->alloc_point = (char *) this + size; - return this; + that = current->alloc_point; + current->alloc_point = (char *) that + size; + return that; } -/* Typically called at function entry. is assigned so that __tmp_free - can later be used to reclaim all subsecuently allocated storage. */ +/* Typically called at function entry. is assigned so that + __gmp_tmp_free can later be used to reclaim all subsequently allocated + storage. */ void -__tmp_mark (mark) +#if __STDC__ +__gmp_tmp_mark (tmp_marker *mark) +#else +__gmp_tmp_mark (mark) tmp_marker *mark; +#endif { mark->which_chunk = current; mark->alloc_point = current->alloc_point; } -/* Free everything allocated since was assigned by __tmp_mark */ +/* Free everything allocated since was assigned by __gmp_tmp_mark */ void -__tmp_free (mark) +#if __STDC__ +__gmp_tmp_free (tmp_marker *mark) +#else +__gmp_tmp_free (mark) tmp_marker *mark; +#endif { while (mark->which_chunk != current) { @@ -100,9 +129,8 @@ __tmp_free (mark) tmp = current; current = tmp->prev; - current_total_allocation -= (((char *) (tmp->end) - (char *) tmp) - - sizeof (tmp_stack)); - free (tmp); + current_total_allocation -= (((char *) (tmp->end) - (char *) tmp) - HSIZ); + (*__gmp_free_func) (tmp, (char *) tmp->end - (char *) tmp); } current->alloc_point = mark->alloc_point; }