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 "locks.h"
18
19 #include "base/mutex.h"
20
21 namespace art {
22
23 Mutex* Locks::abort_lock_ = NULL;
24 Mutex* Locks::breakpoint_lock_ = NULL;
25 ReaderWriterMutex* Locks::classlinker_classes_lock_ = NULL;
26 ReaderWriterMutex* Locks::heap_bitmap_lock_ = NULL;
27 Mutex* Locks::logging_lock_ = NULL;
28 ReaderWriterMutex* Locks::mutator_lock_ = NULL;
29 Mutex* Locks::runtime_shutdown_lock_ = NULL;
30 Mutex* Locks::thread_list_lock_ = NULL;
31 Mutex* Locks::thread_suspend_count_lock_ = NULL;
32 Mutex* Locks::trace_lock_ = NULL;
33 Mutex* Locks::unexpected_signal_lock_ = NULL;
34
Init()35 void Locks::Init() {
36 if (logging_lock_ != NULL) {
37 // Already initialized.
38 DCHECK(abort_lock_ != NULL);
39 DCHECK(breakpoint_lock_ != NULL);
40 DCHECK(classlinker_classes_lock_ != NULL);
41 DCHECK(heap_bitmap_lock_ != NULL);
42 DCHECK(logging_lock_ != NULL);
43 DCHECK(mutator_lock_ != NULL);
44 DCHECK(thread_list_lock_ != NULL);
45 DCHECK(thread_suspend_count_lock_ != NULL);
46 DCHECK(trace_lock_ != NULL);
47 DCHECK(unexpected_signal_lock_ != NULL);
48 } else {
49 logging_lock_ = new Mutex("logging lock", kLoggingLock, true);
50 abort_lock_ = new Mutex("abort lock", kAbortLock, true);
51
52 DCHECK(breakpoint_lock_ == NULL);
53 breakpoint_lock_ = new Mutex("breakpoint lock", kBreakpointLock);
54 DCHECK(classlinker_classes_lock_ == NULL);
55 classlinker_classes_lock_ = new ReaderWriterMutex("ClassLinker classes lock",
56 kClassLinkerClassesLock);
57 DCHECK(heap_bitmap_lock_ == NULL);
58 heap_bitmap_lock_ = new ReaderWriterMutex("heap bitmap lock", kHeapBitmapLock);
59 DCHECK(mutator_lock_ == NULL);
60 mutator_lock_ = new ReaderWriterMutex("mutator lock", kMutatorLock);
61 DCHECK(runtime_shutdown_lock_ == NULL);
62 runtime_shutdown_lock_ = new Mutex("runtime shutdown lock", kRuntimeShutdownLock);
63 DCHECK(thread_list_lock_ == NULL);
64 thread_list_lock_ = new Mutex("thread list lock", kThreadListLock);
65 DCHECK(thread_suspend_count_lock_ == NULL);
66 thread_suspend_count_lock_ = new Mutex("thread suspend count lock", kThreadSuspendCountLock);
67 DCHECK(trace_lock_ == NULL);
68 trace_lock_ = new Mutex("trace lock", kTraceLock);
69 DCHECK(unexpected_signal_lock_ == NULL);
70 unexpected_signal_lock_ = new Mutex("unexpected signal lock", kUnexpectedSignalLock, true);
71 }
72 }
73
74 } // namespace art
75