blob: c084ddd7ac0bf62bac3ec8ab9e0a22baa7371568 [file] [log] [blame]
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "nb/ref_counted.h"
#include "starboard/log.h"
namespace nb {
namespace subtle {
RefCountedBase::RefCountedBase()
: ref_count_(0)
#ifndef NDEBUG
,
in_dtor_(false)
#endif
{
}
RefCountedBase::~RefCountedBase() {
#ifndef NDEBUG
SB_DCHECK(in_dtor_) << "RefCounted object deleted without calling Release()";
#endif
}
void RefCountedBase::AddRef() const {
// TODO(maruel): Add back once it doesn't assert 500 times/sec.
// Current thread books the critical section "AddRelease" without release it.
// DFAKE_SCOPED_LOCK_THREAD_LOCKED(add_release_);
#ifndef NDEBUG
SB_DCHECK(!in_dtor_);
#endif
++ref_count_;
}
bool RefCountedBase::Release() const {
// TODO(maruel): Add back once it doesn't assert 500 times/sec.
// Current thread books the critical section "AddRelease" without release it.
// DFAKE_SCOPED_LOCK_THREAD_LOCKED(add_release_);
#ifndef NDEBUG
SB_DCHECK(!in_dtor_);
#endif
if (--ref_count_ == 0) {
#ifndef NDEBUG
in_dtor_ = true;
#endif
return true;
}
return false;
}
bool RefCountedThreadSafeBase::HasOneRef() const {
return (SbAtomicAcquire_Load(
&const_cast<RefCountedThreadSafeBase*>(this)->ref_count_) == 1);
}
RefCountedThreadSafeBase::RefCountedThreadSafeBase() : ref_count_(0) {
#ifndef NDEBUG
in_dtor_ = false;
#endif
}
RefCountedThreadSafeBase::~RefCountedThreadSafeBase() {
#ifndef NDEBUG
SB_DCHECK(in_dtor_) << "RefCountedThreadSafe object deleted without "
"calling Release()";
#endif
}
void RefCountedThreadSafeBase::AddRef() const {
#ifndef NDEBUG
SB_DCHECK(!in_dtor_);
#endif
SbAtomicNoBarrier_Increment(&ref_count_, 1);
}
bool RefCountedThreadSafeBase::Release() const {
#ifndef NDEBUG
SB_DCHECK(!in_dtor_);
SB_DCHECK(!(SbAtomicAcquire_Load(&ref_count_) == 0));
#endif
if (SbAtomicBarrier_Increment(&ref_count_, -1) == 0) {
#ifndef NDEBUG
in_dtor_ = true;
#endif
return true;
}
return false;
}
} // namespace subtle
} // namespace nb