The Tor Browser / file comparison
comparison: security/sandbox/chromium/base/memory/ref_counted.cc
security/sandbox/chromium/base/memory/ref_counted.cc
- branch
- TOR_BUG_3246
- changeset 6
- 8bccb770b82d
equal
deleted
inserted
replaced
| -1:000000000000 | 0:023f95553a6f |
|---|---|
| 1 // Copyright (c) 2011 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/memory/ref_counted.h" | |
| 6 | |
| 7 #include "base/logging.h" | |
| 8 #include "base/threading/thread_collision_warner.h" | |
| 9 | |
| 10 namespace base { | |
| 11 | |
| 12 namespace subtle { | |
| 13 | |
| 14 RefCountedBase::RefCountedBase() | |
| 15 : ref_count_(0) | |
| 16 #ifndef NDEBUG | |
| 17 , in_dtor_(false) | |
| 18 #endif | |
| 19 { | |
| 20 } | |
| 21 | |
| 22 RefCountedBase::~RefCountedBase() { | |
| 23 #ifndef NDEBUG | |
| 24 DCHECK(in_dtor_) << "RefCounted object deleted without calling Release()"; | |
| 25 #endif | |
| 26 } | |
| 27 | |
| 28 void RefCountedBase::AddRef() const { | |
| 29 // TODO(maruel): Add back once it doesn't assert 500 times/sec. | |
| 30 // Current thread books the critical section "AddRelease" without release it. | |
| 31 // DFAKE_SCOPED_LOCK_THREAD_LOCKED(add_release_); | |
| 32 #ifndef NDEBUG | |
| 33 DCHECK(!in_dtor_); | |
| 34 #endif | |
| 35 ++ref_count_; | |
| 36 } | |
| 37 | |
| 38 bool RefCountedBase::Release() const { | |
| 39 // TODO(maruel): Add back once it doesn't assert 500 times/sec. | |
| 40 // Current thread books the critical section "AddRelease" without release it. | |
| 41 // DFAKE_SCOPED_LOCK_THREAD_LOCKED(add_release_); | |
| 42 #ifndef NDEBUG | |
| 43 DCHECK(!in_dtor_); | |
| 44 #endif | |
| 45 if (--ref_count_ == 0) { | |
| 46 #ifndef NDEBUG | |
| 47 in_dtor_ = true; | |
| 48 #endif | |
| 49 return true; | |
| 50 } | |
| 51 return false; | |
| 52 } | |
| 53 | |
| 54 bool RefCountedThreadSafeBase::HasOneRef() const { | |
| 55 return AtomicRefCountIsOne( | |
| 56 &const_cast<RefCountedThreadSafeBase*>(this)->ref_count_); | |
| 57 } | |
| 58 | |
| 59 RefCountedThreadSafeBase::RefCountedThreadSafeBase() : ref_count_(0) { | |
| 60 #ifndef NDEBUG | |
| 61 in_dtor_ = false; | |
| 62 #endif | |
| 63 } | |
| 64 | |
| 65 RefCountedThreadSafeBase::~RefCountedThreadSafeBase() { | |
| 66 #ifndef NDEBUG | |
| 67 DCHECK(in_dtor_) << "RefCountedThreadSafe object deleted without " | |
| 68 "calling Release()"; | |
| 69 #endif | |
| 70 } | |
| 71 | |
| 72 void RefCountedThreadSafeBase::AddRef() const { | |
| 73 #ifndef NDEBUG | |
| 74 DCHECK(!in_dtor_); | |
| 75 #endif | |
| 76 AtomicRefCountInc(&ref_count_); | |
| 77 } | |
| 78 | |
| 79 bool RefCountedThreadSafeBase::Release() const { | |
| 80 #ifndef NDEBUG | |
| 81 DCHECK(!in_dtor_); | |
| 82 DCHECK(!AtomicRefCountIsZero(&ref_count_)); | |
| 83 #endif | |
| 84 if (!AtomicRefCountDec(&ref_count_)) { | |
| 85 #ifndef NDEBUG | |
| 86 in_dtor_ = true; | |
| 87 #endif | |
| 88 return true; | |
| 89 } | |
| 90 return false; | |
| 91 } | |
| 92 | |
| 93 } // namespace subtle | |
| 94 | |
| 95 } // namespace base |
