/* src/vm/finalizer.c - finalizer linked list and thread
- Copyright (C) 1996-2005 R. Grafl, A. Krall, C. Kruegel, C. Oates,
- R. Obermaisser, M. Platter, M. Probst, S. Ring, E. Steiner,
- C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich, J. Wenninger,
- Institut f. Computersprachen - TU Wien
+ Copyright (C) 1996-2005, 2006, 2007, 2008
+ CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
This file is part of CACAO.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA.
-
- Contact: cacao@complang.tuwien.ac.at
-
- Authors: Christian Thalinger
-
- Changes:
-
- $Id: finalizer.c 3692 2005-11-17 13:35:49Z twisti $
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA.
*/
#include "config.h"
+
+#include <stdlib.h>
+
#include "vm/types.h"
#include "mm/memory.h"
-#include "native/jni.h"
-#include "native/include/java_lang_Thread.h"
-#include "native/include/java_lang_VMThread.h"
-#include "vm/builtin.h"
-#include "vm/exceptions.h"
+
+#include "threads/condition.hpp"
+#include "threads/mutex.hpp"
+#include "threads/thread.hpp"
+
+#include "vm/jit/builtin.hpp"
+#include "vm/exceptions.hpp"
#include "vm/global.h"
-#include "vm/stringlocal.h"
+#include "vm/options.h"
+#include "vm/vm.hpp"
+
#include "vm/jit/asmpart.h"
/* global variables ***********************************************************/
-#if defined(USE_THREADS)
-static java_lang_VMThread *finalizer_vmthread;
-static java_objectheader *lock_finalizer_thread;
+#if defined(ENABLE_THREADS)
+static Mutex *finalizer_thread_mutex;
+static Condition *finalizer_thread_cond;
#endif
bool finalizer_init(void)
{
-#if defined(USE_THREADS)
- lock_finalizer_thread = NEW(java_objectheader);
+ TRACESUBSYSTEMINITIALIZATION("finalizer_init");
-# if defined(NATIVE_THREADS)
- initObjectLock(lock_finalizer_thread);
-# endif
+#if defined(ENABLE_THREADS)
+ finalizer_thread_mutex = Mutex_new();
+ finalizer_thread_cond = Condition_new();
#endif
/* everything's ok */
*******************************************************************************/
-#if defined(USE_THREADS)
+#if defined(ENABLE_THREADS)
static void finalizer_thread(void)
{
while (true) {
- /* get the lock on the finalizer lock object, so we can call wait */
+ /* get the lock on the finalizer mutex, so we can call wait */
- builtin_monitorenter(lock_finalizer_thread);
+ Mutex_lock(finalizer_thread_mutex);
- /* wait forever (0, 0) on that object till we are signaled */
+ /* wait forever on that condition till we are signaled */
- wait_cond_for_object(lock_finalizer_thread, 0, 0);
+ Condition_wait(finalizer_thread_cond, finalizer_thread_mutex);
/* leave the lock */
- builtin_monitorexit(lock_finalizer_thread);
+ Mutex_unlock(finalizer_thread_mutex);
+
+#if !defined(NDEBUG)
+ if (opt_DebugFinalizer)
+ log_println("[finalizer thread : status=awake]");
+#endif
/* and call the finalizers */
gc_invoke_finalizers();
+
+#if !defined(NDEBUG)
+ if (opt_DebugFinalizer)
+ log_println("[finalizer thread : status=sleeping]");
+#endif
}
}
#endif
*******************************************************************************/
-#if defined(USE_THREADS)
+#if defined(ENABLE_THREADS)
bool finalizer_start_thread(void)
{
- java_lang_Thread *t;
+ utf *name;
- /* create the finalizer object */
+ name = utf_new_char("Finalizer");
- finalizer_vmthread =
- (java_lang_VMThread *) builtin_new(class_java_lang_VMThread);
-
- if (!finalizer_vmthread)
+ if (!threads_thread_start_internal(name, finalizer_thread))
return false;
- t = (java_lang_Thread *) builtin_new(class_java_lang_Thread);
-
- t->vmThread = finalizer_vmthread;
- t->name = javastring_new_char("Finalizer");
- t->daemon = true;
- t->priority = 5;
-
- finalizer_vmthread->thread = t;
-
- /* actually start the finalizer thread */
-
- threads_start_thread(t, finalizer_thread);
-
/* everything's ok */
return true;
void finalizer_notify(void)
{
-#if defined(USE_THREADS)
+#if !defined(NDEBUG)
+ if (opt_DebugFinalizer)
+ log_println("[finalizer notified]");
+#endif
+
+#if defined(ENABLE_THREADS)
/* get the lock on the finalizer lock object, so we can call wait */
- builtin_monitorenter(lock_finalizer_thread);
+ Mutex_lock(finalizer_thread_mutex);
/* signal the finalizer thread */
-
- signal_cond_for_object(lock_finalizer_thread);
+
+ Condition_signal(finalizer_thread_cond);
/* leave the lock */
- builtin_monitorexit(lock_finalizer_thread);
+ Mutex_unlock(finalizer_thread_mutex);
#else
/* if we don't have threads, just run the finalizers */
void finalizer_run(void *o, void *p)
{
- java_objectheader *ob = (java_objectheader *) o;
+ java_handle_t *h;
+ classinfo *c;
+
+ h = (java_handle_t *) o;
+
+#if !defined(ENABLE_GC_CACAO) && defined(ENABLE_HANDLES)
+ /* XXX this is only a dirty hack to make Boehm work with handles */
+
+ h = LLNI_WRAP((java_object_t *) h);
+#endif
+
+ LLNI_class_get(h, c);
+
+#if !defined(NDEBUG)
+ if (opt_DebugFinalizer) {
+ log_start();
+ log_print("[finalizer running : o=%p p=%p class=", o, p);
+ class_print(c);
+ log_print("]");
+ log_finish();
+ }
+#endif
/* call the finalizer function */
- asm_calljavafunction(ob->vftbl->class->finalizer, ob, NULL, NULL, NULL);
+ (void) vm_call_method(c->finalizer, h);
+
+#if !defined(NDEBUG)
+ if (opt_DebugFinalizer && (exceptions_get_exception() != NULL)) {
+ log_println("[finalizer exception]");
+ exceptions_print_stacktrace();
+ }
+#endif
/* if we had an exception in the finalizer, ignore it */
- *exceptionptr = NULL;
+ exceptions_clear_exception();
}
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