/*
- *
* sgen-toggleref.c: toggleref support for sgen
*
- * Copyright 2011 Xamarin, Inc.
- *
* Author:
* Rodrigo Kumpera (kumpera@gmail.com)
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Copyright 2011 Xamarin, Inc.
+ * Copyright (C) 2012 Xamarin Inc
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License 2.0 as published by the Free Software Foundation;
+ *
+ * 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License 2.0 along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-
#include "config.h"
#ifdef HAVE_SGEN_GC
static MonoToggleRefStatus (*toggleref_callback) (MonoObject *obj);
static MonoGCToggleRef *toggleref_array;
-static int toogleref_array_size;
-static int toogleref_array_capacity;
+static int toggleref_array_size;
+static int toggleref_array_capacity;
void
-mono_sgen_process_togglerefs (void)
+sgen_process_togglerefs (void)
{
int i, w;
- int toggle_ref_counts [3] = { 0 };
+ int toggle_ref_counts [3] = { 0, 0, 0 };
- DEBUG (4, fprintf (gc_debug_file, "Proccessing ToggleRefs %d\n", toogleref_array_size));
+ SGEN_LOG (4, "Proccessing ToggleRefs %d", toggleref_array_size);
- for (i = w = 0; i < toogleref_array_size; ++i) {
+ for (i = w = 0; i < toggleref_array_size; ++i) {
int res;
MonoGCToggleRef r = toggleref_array [i];
}
}
- toogleref_array_size = w;
+ toggleref_array_size = w;
- DEBUG (4, fprintf (gc_debug_file, "Done Proccessing ToggleRefs dropped %d strong %d weak %d final size %d\n",
+ SGEN_LOG (4, "Done Proccessing ToggleRefs dropped %d strong %d weak %d final size %d",
toggle_ref_counts [MONO_TOGGLE_REF_DROP],
toggle_ref_counts [MONO_TOGGLE_REF_STRONG],
toggle_ref_counts [MONO_TOGGLE_REF_WEAK],
- w));
+ w);
}
-void
-mono_sgen_scan_togglerefs (CopyOrMarkObjectFunc copy_func, char *start, char *end, SgenGrayQueue *queue)
+void sgen_mark_togglerefs (char *start, char *end, ScanCopyContext ctx)
{
+ CopyOrMarkObjectFunc copy_func = ctx.copy_func;
+ SgenGrayQueue *queue = ctx.queue;
int i;
- DEBUG (4, fprintf (gc_debug_file, "Scanning ToggleRefs %d\n", toogleref_array_size));
+ SGEN_LOG (4, "Marking ToggleRefs %d", toggleref_array_size);
- for (i = 0; i < toogleref_array_size; ++i) {
+ for (i = 0; i < toggleref_array_size; ++i) {
if (toggleref_array [i].strong_ref) {
char *object = toggleref_array [i].strong_ref;
if (object >= start && object < end) {
- DEBUG (6, fprintf (gc_debug_file, "\tcopying strong slot %d\n", i));
+ SGEN_LOG (6, "\tcopying strong slot %d", i);
copy_func (&toggleref_array [i].strong_ref, queue);
}
- } else if (toggleref_array [i].weak_ref) {
+ }
+ }
+ sgen_drain_gray_stack (-1, ctx);
+}
+
+void sgen_clear_togglerefs (char *start, char *end, ScanCopyContext ctx)
+{
+ CopyOrMarkObjectFunc copy_func = ctx.copy_func;
+ SgenGrayQueue *queue = ctx.queue;
+ int i;
+
+ SGEN_LOG (4, "Clearing ToggleRefs %d", toggleref_array_size);
+
+ for (i = 0; i < toggleref_array_size; ++i) {
+ if (toggleref_array [i].weak_ref) {
char *object = toggleref_array [i].weak_ref;
if (object >= start && object < end) {
- if (mono_sgen_gc_is_object_ready_for_finalization (object)) {
- DEBUG (6, fprintf (gc_debug_file, "\tcleaning weak slot %d\n", i));
+ if (sgen_gc_is_object_ready_for_finalization (object)) {
+ SGEN_LOG (6, "\tcleaning weak slot %d", i);
toggleref_array [i].weak_ref = NULL; /* We defer compaction to only happen on the callback step. */
} else {
- DEBUG (6, fprintf (gc_debug_file, "\tkeeping weak slot %d\n", i));
+ SGEN_LOG (6, "\tkeeping weak slot %d", i);
copy_func (&toggleref_array [i].weak_ref, queue);
}
}
}
}
+ sgen_drain_gray_stack (-1, ctx);
}
static void
ensure_toggleref_capacity (int capacity)
{
if (!toggleref_array) {
- toogleref_array_capacity = 32;
- toggleref_array = mono_sgen_alloc_internal_dynamic (
- toogleref_array_capacity * sizeof (MonoGCToggleRef),
- INTERNAL_MEM_TOGGLEREF_DATA);
+ toggleref_array_capacity = 32;
+ toggleref_array = sgen_alloc_internal_dynamic (
+ toggleref_array_capacity * sizeof (MonoGCToggleRef),
+ INTERNAL_MEM_TOGGLEREF_DATA,
+ TRUE);
}
- if (toogleref_array_size + capacity >= toogleref_array_capacity) {
+ if (toggleref_array_size + capacity >= toggleref_array_capacity) {
MonoGCToggleRef *tmp;
- int old_capacity = toogleref_array_capacity;
- while (toogleref_array_capacity < toogleref_array_size + capacity)
- toogleref_array_size *= 2;
-
- tmp = mono_sgen_alloc_internal_dynamic (
- toogleref_array_capacity * sizeof (MonoGCToggleRef),
- INTERNAL_MEM_TOGGLEREF_DATA);
+ int old_capacity = toggleref_array_capacity;
+ while (toggleref_array_capacity < toggleref_array_size + capacity)
+ toggleref_array_capacity *= 2;
+
+ tmp = sgen_alloc_internal_dynamic (
+ toggleref_array_capacity * sizeof (MonoGCToggleRef),
+ INTERNAL_MEM_TOGGLEREF_DATA,
+ TRUE);
- memcpy (tmp, toggleref_array, toogleref_array_size * sizeof (MonoGCToggleRef));
+ memcpy (tmp, toggleref_array, toggleref_array_size * sizeof (MonoGCToggleRef));
- mono_sgen_free_internal_dynamic (toggleref_array, old_capacity * sizeof (MonoGCToggleRef), INTERNAL_MEM_TOGGLEREF_DATA);
+ sgen_free_internal_dynamic (toggleref_array, old_capacity * sizeof (MonoGCToggleRef), INTERNAL_MEM_TOGGLEREF_DATA);
toggleref_array = tmp;
}
}
if (!toggleref_callback)
return;
- DEBUG (4, fprintf (gc_debug_file, "Adding toggleref %p %d\n", object, strong_ref));
+ SGEN_LOG (4, "Adding toggleref %p %d", object, strong_ref);
- mono_sgen_gc_lock ();
+ sgen_gc_lock ();
ensure_toggleref_capacity (1);
- if (strong_ref)
- toggleref_array [toogleref_array_size++].strong_ref = object;
- else
- toggleref_array [toogleref_array_size++].weak_ref = object;
+ toggleref_array [toggleref_array_size].strong_ref = strong_ref ? object : NULL;
+ toggleref_array [toggleref_array_size].weak_ref = strong_ref ? NULL : object;
+ ++toggleref_array_size;
- mono_sgen_gc_unlock ();
+ sgen_gc_unlock ();
}
/**
toggleref_callback = proccess_toggleref;
}
+static MonoToggleRefStatus
+test_toggleref_callback (MonoObject *obj)
+{
+ static MonoClassField *mono_toggleref_test_field;
+ int status = MONO_TOGGLE_REF_DROP;
+
+ if (!mono_toggleref_test_field) {
+ mono_toggleref_test_field = mono_class_get_field_from_name (mono_object_get_class (obj), "__test");
+ g_assert (mono_toggleref_test_field);
+ }
+
+ mono_field_get_value (obj, mono_toggleref_test_field, &status);
+ printf ("toggleref-cb obj %d\n", status);
+ return status;
+}
+
+void
+sgen_register_test_toggleref_callback (void)
+{
+ toggleref_callback = test_toggleref_callback;
+}
+
#endif
projects / mono.git / blobdiff