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 "callee_save_frame.h"
18#include "mirror/object-inl.h"
19
20namespace art {
21
22extern "C" int artUnlockObjectFromCode(mirror::Object* obj, Thread* self,
23                                       mirror::ArtMethod** sp)
24    UNLOCK_FUNCTION(monitor_lock_) {
25  FinishCalleeSaveFrameSetup(self, sp, Runtime::kRefsOnly);
26  DCHECK(obj != NULL);  // Assumed to have been checked before entry
27  // MonitorExit may throw exception
28  return obj->MonitorExit(self) ? 0 /* Success */ : -1 /* Failure */;
29}
30
31extern "C" void artLockObjectFromCode(mirror::Object* obj, Thread* thread,
32                                      mirror::ArtMethod** sp)
33    EXCLUSIVE_LOCK_FUNCTION(monitor_lock_) {
34  FinishCalleeSaveFrameSetup(thread, sp, Runtime::kRefsOnly);
35  DCHECK(obj != NULL);        // Assumed to have been checked before entry
36  obj->MonitorEnter(thread);  // May block
37  DCHECK(thread->HoldsLock(obj));
38  // Only possible exception is NPE and is handled before entry
39  DCHECK(!thread->IsExceptionPending());
40}
41
42}  // namespace art
43