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
21namespace art {
22
23Mutex* Locks::abort_lock_ = NULL;
24Mutex* Locks::breakpoint_lock_ = NULL;
25ReaderWriterMutex* Locks::classlinker_classes_lock_ = NULL;
26ReaderWriterMutex* Locks::heap_bitmap_lock_ = NULL;
27Mutex* Locks::logging_lock_ = NULL;
28ReaderWriterMutex* Locks::mutator_lock_ = NULL;
29Mutex* Locks::runtime_shutdown_lock_ = NULL;
30Mutex* Locks::thread_list_lock_ = NULL;
31Mutex* Locks::thread_suspend_count_lock_ = NULL;
32Mutex* Locks::trace_lock_ = NULL;
33Mutex* Locks::unexpected_signal_lock_ = NULL;
34
35void 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