1 /*
2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
510 JVM_END
511
512
513 // java.lang.Object ///////////////////////////////////////////////
514
515
516 JVM_ENTRY(jint, JVM_IHashCode(JNIEnv* env, jobject handle))
517 JVMWrapper("JVM_IHashCode");
518 // as implemented in the classic virtual machine; return 0 if object is NULL
519 return handle == NULL ? 0 : ObjectSynchronizer::FastHashCode (THREAD, JNIHandles::resolve_non_null(handle)) ;
520 JVM_END
521
522
523 JVM_ENTRY(void, JVM_MonitorWait(JNIEnv* env, jobject handle, jlong ms))
524 JVMWrapper("JVM_MonitorWait");
525 Handle obj(THREAD, JNIHandles::resolve_non_null(handle));
526 assert(obj->is_instance() || obj->is_array(), "JVM_MonitorWait must apply to an object");
527 JavaThreadInObjectWaitState jtiows(thread, ms != 0);
528 if (JvmtiExport::should_post_monitor_wait()) {
529 JvmtiExport::post_monitor_wait((JavaThread *)THREAD, (oop)obj(), ms);
530 }
531 ObjectSynchronizer::wait(obj, ms, THREAD);
532 JVM_END
533
534
535 JVM_ENTRY(void, JVM_MonitorNotify(JNIEnv* env, jobject handle))
536 JVMWrapper("JVM_MonitorNotify");
537 Handle obj(THREAD, JNIHandles::resolve_non_null(handle));
538 assert(obj->is_instance() || obj->is_array(), "JVM_MonitorNotify must apply to an object");
539 ObjectSynchronizer::notify(obj, CHECK);
540 JVM_END
541
542
543 JVM_ENTRY(void, JVM_MonitorNotifyAll(JNIEnv* env, jobject handle))
544 JVMWrapper("JVM_MonitorNotifyAll");
545 Handle obj(THREAD, JNIHandles::resolve_non_null(handle));
546 assert(obj->is_instance() || obj->is_array(), "JVM_MonitorNotifyAll must apply to an object");
547 ObjectSynchronizer::notifyall(obj, CHECK);
548 JVM_END
549
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1 /*
2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
510 JVM_END
511
512
513 // java.lang.Object ///////////////////////////////////////////////
514
515
516 JVM_ENTRY(jint, JVM_IHashCode(JNIEnv* env, jobject handle))
517 JVMWrapper("JVM_IHashCode");
518 // as implemented in the classic virtual machine; return 0 if object is NULL
519 return handle == NULL ? 0 : ObjectSynchronizer::FastHashCode (THREAD, JNIHandles::resolve_non_null(handle)) ;
520 JVM_END
521
522
523 JVM_ENTRY(void, JVM_MonitorWait(JNIEnv* env, jobject handle, jlong ms))
524 JVMWrapper("JVM_MonitorWait");
525 Handle obj(THREAD, JNIHandles::resolve_non_null(handle));
526 assert(obj->is_instance() || obj->is_array(), "JVM_MonitorWait must apply to an object");
527 JavaThreadInObjectWaitState jtiows(thread, ms != 0);
528 if (JvmtiExport::should_post_monitor_wait()) {
529 JvmtiExport::post_monitor_wait((JavaThread *)THREAD, (oop)obj(), ms);
530
531 // The current thread already owns the monitor and it has not yet
532 // been added to the wait queue so the current thread cannot be
533 // made the successor. This means that the JVMTI_EVENT_MONITOR_WAIT
534 // event handler cannot accidentally consume an unpark() meant for
535 // the ParkEvent associated with this ObjectMonitor.
536 }
537 ObjectSynchronizer::wait(obj, ms, THREAD);
538 JVM_END
539
540
541 JVM_ENTRY(void, JVM_MonitorNotify(JNIEnv* env, jobject handle))
542 JVMWrapper("JVM_MonitorNotify");
543 Handle obj(THREAD, JNIHandles::resolve_non_null(handle));
544 assert(obj->is_instance() || obj->is_array(), "JVM_MonitorNotify must apply to an object");
545 ObjectSynchronizer::notify(obj, CHECK);
546 JVM_END
547
548
549 JVM_ENTRY(void, JVM_MonitorNotifyAll(JNIEnv* env, jobject handle))
550 JVMWrapper("JVM_MonitorNotifyAll");
551 Handle obj(THREAD, JNIHandles::resolve_non_null(handle));
552 assert(obj->is_instance() || obj->is_array(), "JVM_MonitorNotifyAll must apply to an object");
553 ObjectSynchronizer::notifyall(obj, CHECK);
554 JVM_END
555
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