Add ememoa variable size memory allocator.

SVN revision: 35415
This commit is contained in:
Cedric BAIL 2008-08-08 17:17:52 +00:00
parent 27ffac0f27
commit 13a3f9516e
5 changed files with 179 additions and 1 deletions

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@ -194,6 +194,7 @@ src/modules/Makefile
src/modules/mp/Makefile
src/modules/mp/chained_pool/Makefile
src/modules/mp/ememoa_fixed/Makefile
src/modules/mp/ememoa_unknown/Makefile
src/modules/mp/pass_through/Makefile
src/tests/Makefile
])

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@ -1,4 +1,4 @@
SUBDIRS = chained_pool ememoa_fixed pass_through
SUBDIRS = chained_pool ememoa_fixed pass_through ememoa_unknown
MAINTAINERCLEANFILES = \
Makefile.in

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@ -0,0 +1,7 @@
Makefile.in
Makefile
*.la
*.lo
*.gcno
.libs
.deps

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@ -0,0 +1,22 @@
MAINTAINERCLEANFILES = \
Makefile.in
AM_CPPFLAGS = \
-I. \
-I$(top_srcdir)/src/include \
@COVERAGE_CFLAGS@ \
@EMEMOA_CFLAGS@
if EINA_ENABLE_EMEMOA
controllerdir = $(libdir)/eina/chained_pool/
controller_LTLIBRARIES = eina_ememoa_unknown.la
eina_ememoa_unknown_la_SOURCES = \
eina_ememoa_unknown.c
eina_ememoa_unknown_la_LIBADD = $(top_builddir)/src/lib/libeina.la @EMEMOA_LIBS@ @COVERAGE_LIBS@
eina_ememoa_unknown_la_LDFLAGS = -no-undefined @lt_enable_auto_import@ -module -avoid-version
eina_ememoa_unknown_la_DEPENDENCIES = $(top_builddir)/src/lib/libeina.la
endif

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@ -0,0 +1,148 @@
/*
* vim:ts=8:sw=3:sts=8:noexpandtab:cino=>5n-3f0^-2{2
*/
/* EINA - EFL data type library
* Copyright (C) 2008 Cedric BAIL
*
* This library is free software; you can redistribute it and/or
* modify 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.
*
* This 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library;
* if not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdlib.h>
#include <string.h>
#include <ememoa_mempool_fixed.h>
#include <ememoa_mempool_unknown_size.h>
#include "eina_types.h"
#include "eina_private.h"
typedef struct _Eina_Ememoa_Unknown_Size_Mempool Eina_Ememoa_Unknown_Size_Mempool;
struct _Eina_Ememoa_Unknown_Size_Mempool
{
struct ememoa_mempool_desc_s *desc;
int pool;
};
static void *
eina_ememoa_unknown_size_malloc(void *data, unsigned int size)
{
Eina_Ememoa_Unknown_Size_Mempool *efm = data;
return ememoa_mempool_unknown_size_pop_object(efm->pool, size);
}
static void
eina_ememoa_unknown_size_free(void *data, void *ptr)
{
Eina_Ememoa_Unknown_Size_Mempool *efm = data;
ememoa_mempool_unknown_size_push_object(efm->pool, ptr);
}
static void*
eina_ememoa_unknown_size_realloc(void *data, void *element, unsigned int size)
{
Eina_Ememoa_Unknown_Size_Mempool *efm = data;
return ememoa_mempool_unknown_size_resize_object(efm->pool, element, size);
}
static void
eina_ememoa_unknown_size_gc(void *data)
{
Eina_Ememoa_Unknown_Size_Mempool *efm = data;
ememoa_mempool_unknown_size_garbage_collect(efm->pool);
}
static void
eina_ememoa_unknown_size_statistics(void *data)
{
Eina_Ememoa_Unknown_Size_Mempool *efm = data;
ememoa_mempool_unknown_size_display_statistic(efm->pool);
}
static void*
eina_ememoa_unknown_size_init(const char *context, __UNUSED__ const char *option, va_list args)
{
struct ememoa_mempool_desc_s *desc = NULL;
Eina_Ememoa_Unknown_Size_Mempool *efm;
Eina_Bool thread_protect;
unsigned int *items_map;
unsigned int items_count;
unsigned int i;
int context_length;
if (context)
{
context_length = strlen(context) + 1;
desc = calloc(1, sizeof (struct ememoa_mempool_desc_s) + context_length);
if (!desc) goto on_error;
desc->name = (char*) (desc + 1);
memcpy((char*) desc->name, context, context_length);
}
thread_protect = va_arg(args, int);
items_count = va_arg(args, unsigned int);
items_map = malloc(sizeof (unsigned int) * 2 * items_count);
for (i = 0; i < (items_count << 1); ++i)
items_map[i] = va_arg(args, unsigned int);
efm = malloc(sizeof (Eina_Ememoa_Unknown_Size_Mempool));
if (!efm) goto on_error;
efm->desc = desc;
efm->pool = ememoa_mempool_unknown_size_init(items_count,
items_map,
thread_protect ? EMEMOA_THREAD_PROTECTION : 0,
efm->desc);
if (efm->pool < 0) goto on_error;
return efm;
on_error:
if (desc) free(desc);
if (efm) free(efm);
return NULL;
}
static void
eina_ememoa_unknown_size_shutdown(void *data)
{
Eina_Ememoa_Unknown_Size_Mempool *efm = data;
if (efm->desc) free(efm->desc);
ememoa_mempool_unknown_size_clean(efm->pool);
free(efm);
}
Eina_Mempool_Backend mp_backend = {
.init = &eina_ememoa_unknown_size_init,
.shutdown = &eina_ememoa_unknown_size_shutdown,
.realloc = &eina_ememoa_unknown_size_realloc,
.alloc = &eina_ememoa_unknown_size_malloc,
.free = &eina_ememoa_unknown_size_free,
.garbage_collect = &eina_ememoa_unknown_size_gc,
.statistics = &eina_ememoa_unknown_size_statistics
};