From 11da511c784eca003deb90c23570f0873954e0de Mon Sep 17 00:00:00 2001 From: Duncan Wilkie Date: Sat, 18 Nov 2023 06:11:09 -0600 Subject: Initial commit. --- gmp-6.3.0/tal-reent.c | 81 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) create mode 100644 gmp-6.3.0/tal-reent.c (limited to 'gmp-6.3.0/tal-reent.c') diff --git a/gmp-6.3.0/tal-reent.c b/gmp-6.3.0/tal-reent.c new file mode 100644 index 0000000..fb43e06 --- /dev/null +++ b/gmp-6.3.0/tal-reent.c @@ -0,0 +1,81 @@ +/* TMP_ALLOC routines using malloc in a reentrant fashion. + +Copyright 2000, 2001 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 either: + + * the GNU Lesser General Public License as published by the Free + Software Foundation; either version 3 of the License, or (at your + option) any later version. + +or + + * the GNU General Public License as published by the Free Software + Foundation; either version 2 of the License, or (at your option) any + later version. + +or both in parallel, as here. + +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 General Public License +for more details. + +You should have received copies of the GNU General Public License and the +GNU Lesser General Public License along with the GNU MP Library. If not, +see https://www.gnu.org/licenses/. */ + +#include +#include "gmp-impl.h" + + +/* Each TMP_ALLOC uses __gmp_allocate_func to get a block of memory of the + size requested, plus a header at the start which is used to hold the + blocks on a linked list in the marker variable, ready for TMP_FREE to + release. + + Callers should try to do multiple allocs with one call, in the style of + TMP_ALLOC_LIMBS_2 if it's easy to arrange, since that will keep down the + number of separate malloc calls. + + Enhancements: + + Could inline both TMP_ALLOC and TMP_FREE, though TMP_ALLOC would need the + compiler to have "inline" since it returns a value. The calls to malloc + will be slow though, so it hardly seems worth worrying about one extra + level of function call. */ + + +#define HSIZ ROUND_UP_MULTIPLE (sizeof (struct tmp_reentrant_t), __TMP_ALIGN) + +void * +__gmp_tmp_reentrant_alloc (struct tmp_reentrant_t **markp, size_t size) +{ + char *p; + size_t total_size; + +#define P ((struct tmp_reentrant_t *) p) + + total_size = size + HSIZ; + p = __GMP_ALLOCATE_FUNC_TYPE (total_size, char); + P->size = total_size; + P->next = *markp; + *markp = P; + return p + HSIZ; +} + +void +__gmp_tmp_reentrant_free (struct tmp_reentrant_t *mark) +{ + struct tmp_reentrant_t *next; + + while (mark != NULL) + { + next = mark->next; + (*__gmp_free_func) ((char *) mark, mark->size); + mark = next; + } +} -- cgit v1.2.3