0158c1b88d
* tmpbuf got its own implementation files * Some optimizations on the tmpbuf implementation, handling tiny, small and huge allocations better. * tiny allocation smaller than sizeof(void*) are not aligned * Reduced the ring sizes to 16 (configureable in tmpbuf.h) This is only the tmpbuf refactoring, fixes following on the next commits.
144 lines
3.2 KiB
C
144 lines
3.2 KiB
C
/*
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safe_clib.c - Portable and safe wrapers around some clib functions and some tools
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Copyright (C) Lumiera.org
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2008, Christian Thaeter <ct@pipapo.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "lib/error.h"
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#include "lib/safeclib.h"
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#include "backend/resourcecollector.h"
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#include <string.h>
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#include <stdlib.h>
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#include <pthread.h>
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#include <stdint.h>
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#include <nobug.h>
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LUMIERA_ERROR_DEFINE (NO_MEMORY, "Out of Memory!");
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/* placeholder function until the resourcecollector gets hooked in */
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static int
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die_no_mem (enum lumiera_resource which, enum lumiera_resource_try* iteration, void* context)
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{
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(void) which; (void) iteration; (void) context;
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LUMIERA_DIE (NO_MEMORY);
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return 0; /* not reached */
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}
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static lumiera_resourcecollector_run_fn lumiera_safeclib_resourcecollector_run_hook = die_no_mem;
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void
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lumiera_safeclib_set_resourcecollector (void* hook)
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{
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if (hook)
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lumiera_safeclib_resourcecollector_run_hook = (lumiera_resourcecollector_run_fn)hook;
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else
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lumiera_safeclib_resourcecollector_run_hook = die_no_mem;
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}
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void*
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lumiera_malloc (size_t size)
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{
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enum lumiera_resource_try iteration = LUMIERA_RESOURCE_ONE;
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void* o = NULL;
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if (size)
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do
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o = malloc (size);
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while (!o && lumiera_safeclib_resourcecollector_run_hook (LUMIERA_RESOURCE_MEMORY, &iteration, &size));
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return o;
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}
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void*
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lumiera_calloc (size_t n, size_t size)
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{
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enum lumiera_resource_try iteration = LUMIERA_RESOURCE_ONE;
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void* o = NULL;
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size_t gross = n*size;
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if (n&&size)
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do
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o = calloc (n, size);
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while (!o && lumiera_safeclib_resourcecollector_run_hook (LUMIERA_RESOURCE_MEMORY, &iteration, &gross));
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return o;
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}
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void*
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lumiera_realloc (void* ptr, size_t size)
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{
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enum lumiera_resource_try iteration = LUMIERA_RESOURCE_ONE;
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void* o = NULL;
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if (size)
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do
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o = realloc (ptr, size);
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while (!o && lumiera_safeclib_resourcecollector_run_hook (LUMIERA_RESOURCE_MEMORY, &iteration, &size));
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return o;
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}
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char*
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lumiera_strndup (const char* str, size_t len)
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{
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enum lumiera_resource_try iteration = LUMIERA_RESOURCE_ONE;
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void* o = NULL;
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do
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if (str && len)
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o = strndup (str, len);
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else
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o = strdup ("");
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while (!o && lumiera_safeclib_resourcecollector_run_hook (LUMIERA_RESOURCE_MEMORY, &iteration, &len));
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return o;
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}
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int
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lumiera_strncmp (const char* a, const char* b, size_t len)
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{
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return a == b ? 0 : strncmp (a?a:"", b?b:"", len);
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}
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int
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lumiera_streq (const char* a, const char* b)
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{
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return !lumiera_strncmp (a, b, SIZE_MAX);
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}
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/*
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// Local Variables:
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// mode: C
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// c-file-style: "gnu"
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// indent-tabs-mode: nil
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// End:
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*/
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