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comparison: ipc/chromium/src/base/ref_counted.cc
ipc/chromium/src/base/ref_counted.cc
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:64f3d7f51d92 |
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| 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "base/ref_counted.h" | |
| 6 | |
| 7 #include "base/logging.h" | |
| 8 #include "base/thread_collision_warner.h" | |
| 9 | |
| 10 namespace base { | |
| 11 | |
| 12 namespace subtle { | |
| 13 | |
| 14 RefCountedBase::RefCountedBase() : ref_count_(0) { | |
| 15 #ifndef NDEBUG | |
| 16 in_dtor_ = false; | |
| 17 #endif | |
| 18 } | |
| 19 | |
| 20 RefCountedBase::~RefCountedBase() { | |
| 21 #ifndef NDEBUG | |
| 22 DCHECK(in_dtor_) << "RefCounted object deleted without calling Release()"; | |
| 23 #endif | |
| 24 } | |
| 25 | |
| 26 void RefCountedBase::AddRef() { | |
| 27 // TODO(maruel): Add back once it doesn't assert 500 times/sec. | |
| 28 // Current thread books the critical section "AddRelease" without release it. | |
| 29 // DFAKE_SCOPED_LOCK_THREAD_LOCKED(add_release_); | |
| 30 #ifndef NDEBUG | |
| 31 DCHECK(!in_dtor_); | |
| 32 #endif | |
| 33 ++ref_count_; | |
| 34 } | |
| 35 | |
| 36 bool RefCountedBase::Release() { | |
| 37 // TODO(maruel): Add back once it doesn't assert 500 times/sec. | |
| 38 // Current thread books the critical section "AddRelease" without release it. | |
| 39 // DFAKE_SCOPED_LOCK_THREAD_LOCKED(add_release_); | |
| 40 #ifndef NDEBUG | |
| 41 DCHECK(!in_dtor_); | |
| 42 #endif | |
| 43 if (--ref_count_ == 0) { | |
| 44 #ifndef NDEBUG | |
| 45 in_dtor_ = true; | |
| 46 #endif | |
| 47 return true; | |
| 48 } | |
| 49 return false; | |
| 50 } | |
| 51 | |
| 52 RefCountedThreadSafeBase::RefCountedThreadSafeBase() : ref_count_(0) { | |
| 53 #ifndef NDEBUG | |
| 54 in_dtor_ = false; | |
| 55 #endif | |
| 56 } | |
| 57 | |
| 58 RefCountedThreadSafeBase::~RefCountedThreadSafeBase() { | |
| 59 #ifndef NDEBUG | |
| 60 DCHECK(in_dtor_) << "RefCountedThreadSafe object deleted without " | |
| 61 "calling Release()"; | |
| 62 #endif | |
| 63 } | |
| 64 | |
| 65 void RefCountedThreadSafeBase::AddRef() { | |
| 66 #ifndef NDEBUG | |
| 67 DCHECK(!in_dtor_); | |
| 68 #endif | |
| 69 AtomicRefCountInc(&ref_count_); | |
| 70 } | |
| 71 | |
| 72 bool RefCountedThreadSafeBase::Release() { | |
| 73 #ifndef NDEBUG | |
| 74 DCHECK(!in_dtor_); | |
| 75 DCHECK(!AtomicRefCountIsZero(&ref_count_)); | |
| 76 #endif | |
| 77 if (!AtomicRefCountDec(&ref_count_)) { | |
| 78 #ifndef NDEBUG | |
| 79 in_dtor_ = true; | |
| 80 #endif | |
| 81 return true; | |
| 82 } | |
| 83 return false; | |
| 84 } | |
| 85 | |
| 86 } // namespace subtle | |
| 87 | |
| 88 } // namespace base |
