X-Git-Url: http://git.indexdata.com/?p=yaz-moved-to-github.git;a=blobdiff_plain;f=odr%2Fodr_mem.c;h=20768a55a68dc6374271cf294b7657f74dd11261;hp=95a8135ccc3b8f661196e0b7bb138b1fb4bca35d;hb=1b29df1d940a30bca2af0fb5c7e19961520bf230;hpb=aa82967af8f06004b567ad1ed40c67b056c44e7b diff --git a/odr/odr_mem.c b/odr/odr_mem.c index 95a8135..20768a5 100644 --- a/odr/odr_mem.c +++ b/odr/odr_mem.c @@ -1,10 +1,43 @@ /* - * Copyright (C) 1994, Index Data I/S - * All rights reserved. + * Copyright (c) 1995-1998, Index Data + * See the file LICENSE for details. * Sebastian Hammer, Adam Dickmeiss * * $Log: odr_mem.c,v $ - * Revision 1.3 1995-04-18 08:15:21 quinn + * Revision 1.14 1998-07-20 12:38:15 adam + * More LOG_DEBUG-diagnostics. + * + * Revision 1.13 1998/02/11 11:53:34 adam + * Changed code so that it compiles as C++. + * + * Revision 1.12 1995/11/08 17:41:33 quinn + * Smallish. + * + * Revision 1.11 1995/11/01 13:54:43 quinn + * Minor adjustments + * + * Revision 1.10 1995/10/25 16:58:19 quinn + * Stupid bug in odr_malloc + * + * Revision 1.9 1995/10/13 16:08:08 quinn + * Added OID utility + * + * Revision 1.8 1995/09/29 17:12:24 quinn + * Smallish + * + * Revision 1.7 1995/09/27 15:02:59 quinn + * Modified function heads & prototypes. + * + * Revision 1.6 1995/08/21 09:10:41 quinn + * Smallish fixes to suppport new formats. + * + * Revision 1.5 1995/05/16 08:50:55 quinn + * License, documentation, and memory fixes + * + * Revision 1.4 1995/05/15 11:56:09 quinn + * More work on memory management. + * + * Revision 1.3 1995/04/18 08:15:21 quinn * Added dynamic memory allocation on encoding (whew). Code is now somewhat * neater. We'll make the same change for decoding one day. * @@ -19,85 +52,31 @@ #include #include +#include /* ------------------------ NIBBLE MEMORY ---------------------- */ -#define ODR_MEM_CHUNK (10*1024) - -typedef struct odr_memblock -{ - char *buf; - int size; - int top; - struct odr_memblock *next; -} odr_memblock; - -static odr_memblock *freelist = 0; - -static void free_block(odr_memblock *p) -{ - p->next = freelist; - freelist = p; -} - -static odr_memblock *get_block(int size) +/* + * Extract the memory control block from o. + */ +NMEM odr_extract_mem(ODR o) { - odr_memblock *r, *l; + NMEM r = o->mem; - for (r = freelist, l = 0; r; l = r, r = r->next) - if (r->size >= size) - break; - if (r) - if (l) - l->next = r->next; - else - freelist = r->next; - else - { - int get = ODR_MEM_CHUNK; - - if (get < size) - get = size; - if (!(r = malloc(sizeof(*r)))) - abort(); - if (!(r->buf = malloc(r->size = get))) - abort(); - } - r->top = 0; + o->mem = 0; return r; } -void odr_release_mem(odr_memblock *p) +void *odr_malloc(ODR o, int size) { - odr_memblock *t; - - while (p) - { - t = p; - p = p->next; - free_block(t); - } + if (o && !o->mem) + o->mem = nmem_create(); + return nmem_malloc(o ? o->mem : 0, size); } -void *odr_malloc(ODR o, int size) +int odr_total(ODR o) { - struct odr_memblock *p = o->mem; - char *r; - - if (!p || p->size - p->top < size) - if (!(p = get_block(size))) - { - o->error = OMEMORY; - return 0; - } - else - { - p->next = o->mem; - o->mem = p; - } - r = p->buf + p->top; - p->top += (size + (sizeof(long) - 1)) & ~(sizeof(long) - 1); - return r; + return o->mem ? nmem_total(o->mem) : 0; } /* ---------- memory management for data encoding ----------*/ @@ -115,9 +94,9 @@ int odr_grow_block(odr_ecblock *b, int min_bytes) togrow = b->size; if (togrow < min_bytes) togrow = min_bytes; - if (b->size && !(b->buf = realloc(b->buf, b->size += togrow))) + if (b->size && !(b->buf =(unsigned char *)xrealloc(b->buf, b->size += togrow))) abort(); - else if (!b->size && !(b->buf = malloc(b->size = togrow))) + else if (!b->size && !(b->buf = (unsigned char *)xmalloc(b->size = togrow))) abort(); #ifdef ODR_DEBUG fprintf(stderr, "New size for encode_buffer: %d\n", b->size);