1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "entrypoints/entrypoint_utils-inl.h" 18 #include "mirror/object-inl.h" 19 20 namespace art { 21 22 extern "C" void art_portable_lock_object_from_code(mirror::Object* obj, Thread* thread) 23 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 24 NO_THREAD_SAFETY_ANALYSIS /* EXCLUSIVE_LOCK_FUNCTION(Monitor::monitor_lock_) */ { 25 DCHECK(obj != nullptr); // Assumed to have been checked before entry. 26 obj->MonitorEnter(thread); // May block. 27 DCHECK(thread->HoldsLock(obj)); 28 // Only possible exception is NPE and is handled before entry. 29 DCHECK(!thread->IsExceptionPending()); 30 } 31 32 extern "C" void art_portable_unlock_object_from_code(mirror::Object* obj, Thread* thread) 33 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 34 NO_THREAD_SAFETY_ANALYSIS /* UNLOCK_FUNCTION(Monitor::monitor_lock_) */ { 35 DCHECK(obj != nullptr); // Assumed to have been checked before entry. 36 // MonitorExit may throw exception. 37 obj->MonitorExit(thread); 38 } 39 40 } // namespace art 41
