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/*
* hgspy_helper.c
* Copyright (C) 2006 Akira TAGOH
*
* Authors:
* Akira TAGOH <at@gclab.org>
*
* 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 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <gmodule.h>
#include <hieroglyph/hgtypes.h>
#include <hieroglyph/hgmem.h>
#include "../hieroglyph/hgallocator-private.h"
#include "hgspy_helper.h"
#include "visualizer.h"
static gpointer __hg_mem_pool_destroy = NULL;
static gpointer __hg_mem_pool_add_heap = NULL;
static gpointer __hg_mem_alloc_with_flags = NULL;
static gpointer __hg_mem_free = NULL;
static gpointer __hg_mem_resize = NULL;
static gpointer __hg_mem_garbage_collection = NULL;
static GModule *__handle = NULL;
static GtkWidget *visual = NULL;
/*
* Private Functions
*/
static void __attribute__((constructor))
helper_init(void)
{
unsetenv("LD_PRELOAD");
__handle = g_module_open("libhieroglyph.so", 0);
if (__handle == NULL) {
g_warning("Failed g_module_open: %s", g_module_error());
exit(1);
}
if (!g_module_symbol(__handle, "hg_mem_pool_destroy", &__hg_mem_pool_destroy)) {
g_warning("Failed g_module_symbol: %s", g_module_error());
exit(1);
}
if (!g_module_symbol(__handle, "hg_mem_pool_add_heap", &__hg_mem_pool_add_heap)) {
g_warning("Failed g_module_symbol: %s", g_module_error());
exit(1);
}
if (!g_module_symbol(__handle, "hg_mem_alloc_with_flags", &__hg_mem_alloc_with_flags)) {
g_warning("Failed g_module_symbol: %s", g_module_error());
exit(1);
}
if (!g_module_symbol(__handle, "hg_mem_free", &__hg_mem_free)) {
g_warning("Failed g_module_symbol: %s", g_module_error());
exit(1);
}
if (!g_module_symbol(__handle, "hg_mem_resize", &__hg_mem_resize)) {
g_warning("Failed g_module_symbol: %s", g_module_error());
exit(1);
}
if (!g_module_symbol(__handle, "hg_mem_garbage_collection", &__hg_mem_garbage_collection)) {
g_warning("Failed g_module_symbol: %s", g_module_error());
exit(1);
}
g_type_init();
visual = hg_memory_visualizer_new();
}
void __attribute__((destructor))
helper_finalize(void)
{
if (__handle)
g_module_close(__handle);
}
/*
* preload functions
*/
void
hg_mem_pool_destroy(HgMemPool *pool)
{
gchar *pool_name = g_strdup(hg_mem_pool_get_name(pool));
((void (*) (HgMemPool *))__hg_mem_pool_destroy) (pool);
hg_memory_visualizer_remove_pool(HG_MEMORY_VISUALIZER (visual),
pool_name);
g_free(pool_name);
}
void
hg_mem_pool_add_heap(HgMemPool *pool,
HgHeap *heap)
{
((void (*) (HgMemPool *, HgHeap *))__hg_mem_pool_add_heap) (pool, heap);
hg_memory_visualizer_set_heap_state(HG_MEMORY_VISUALIZER (visual),
hg_mem_pool_get_name(pool),
heap);
}
gpointer
hg_mem_alloc_with_flags(HgMemPool *pool,
gsize size,
guint flags)
{
gpointer retval = ((gpointer (*) (HgMemPool *, gsize, guint))
__hg_mem_alloc_with_flags) (pool, size, flags);
HgMemObject *obj;
if (retval) {
hg_mem_get_object__inline(retval, obj);
if (obj) {
gint heap_id = HG_MEMOBJ_GET_HEAP_ID (obj);
GPtrArray *a = obj->pool->heap_list;
HgHeap *h;
if (a && a->len > 0) {
h = g_ptr_array_index(a, heap_id);
hg_memory_visualizer_set_chunk_state(HG_MEMORY_VISUALIZER (visual),
hg_mem_pool_get_name(obj->pool),
heap_id,
(gsize)obj - (gsize)h->heaps,
hg_mem_get_object_size(retval),
HG_CHUNK_USED);
}
}
}
return retval;
}
gboolean
hg_mem_free(gpointer data)
{
HgMemObject *obj;
hg_mem_get_object__inline(data, obj);
if (obj) {
gint heap_id = HG_MEMOBJ_GET_HEAP_ID (obj);
HgHeap *h = g_ptr_array_index(obj->pool->heap_list, heap_id);
hg_memory_visualizer_set_chunk_state(HG_MEMORY_VISUALIZER (visual),
hg_mem_pool_get_name(obj->pool),
heap_id,
(gsize)obj - (gsize)h->heaps,
hg_mem_get_object_size(data),
HG_CHUNK_FREE);
}
return ((gboolean (*) (gpointer))__hg_mem_free) (data);
}
gpointer
hg_mem_resize(gpointer data,
gsize size)
{
gpointer retval;
HgMemObject *obj;
hg_mem_get_object__inline(data, obj);
if (obj) {
gint heap_id = HG_MEMOBJ_GET_HEAP_ID (obj);
HgHeap *h = g_ptr_array_index(obj->pool->heap_list, heap_id);
hg_memory_visualizer_set_chunk_state(HG_MEMORY_VISUALIZER (visual),
hg_mem_pool_get_name(obj->pool),
heap_id,
(gsize)obj - (gsize)h->heaps,
hg_mem_get_object_size(data),
HG_CHUNK_FREE);
}
retval = ((gpointer (*) (gpointer, gsize))__hg_mem_resize) (data, size);
if (retval) {
hg_mem_get_object__inline(retval, obj);
if (obj) {
gint heap_id = HG_MEMOBJ_GET_HEAP_ID (obj);
HgHeap *h = g_ptr_array_index(obj->pool->heap_list, heap_id);
hg_memory_visualizer_set_chunk_state(HG_MEMORY_VISUALIZER (visual),
hg_mem_pool_get_name(obj->pool),
heap_id,
(gsize)obj - (gsize)h->heaps,
hg_mem_get_object_size(retval),
HG_CHUNK_USED);
}
}
return retval;
}
gboolean
hg_mem_garbage_collection(HgMemPool *pool)
{
gboolean retval;
hg_memory_visualizer_notify_gc_state(HG_MEMORY_VISUALIZER (visual), FALSE);
retval = ((gboolean (*) (HgMemPool *))__hg_mem_garbage_collection) (pool);
hg_memory_visualizer_notify_gc_state(HG_MEMORY_VISUALIZER (visual), TRUE);
return retval;
}
/*
* Public Functions
*/
GtkWidget *
hg_spy_helper_get_widget(void)
{
return visual;
}
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