| // Copyright 2011 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "partition_alloc/partition_alloc_base/memory/ref_counted.h" |
| |
| #include <limits> |
| #include <ostream> |
| #include <type_traits> |
| |
| #include "partition_alloc/build_config.h" |
| #include "partition_alloc/partition_alloc_base/debug/debugging_buildflags.h" |
| |
| namespace partition_alloc::internal::base::subtle { |
| |
| bool RefCountedThreadSafeBase::HasOneRef() const { |
| return ref_count_.IsOne(); |
| } |
| |
| bool RefCountedThreadSafeBase::HasAtLeastOneRef() const { |
| return !ref_count_.IsZero(); |
| } |
| |
| #if BUILDFLAG(PA_DCHECK_IS_ON) |
| RefCountedThreadSafeBase::~RefCountedThreadSafeBase() { |
| PA_BASE_DCHECK(in_dtor_) << "RefCountedThreadSafe object deleted without " |
| "calling Release()"; |
| } |
| #endif |
| |
| // For security and correctness, we check the arithmetic on ref counts. |
| // |
| // In an attempt to avoid binary bloat (from inlining the `CHECK`), we define |
| // these functions out-of-line. However, compilers are wily. Further testing may |
| // show that `PA_NOINLINE` helps or hurts. |
| // |
| #if !defined(ARCH_CPU_X86_FAMILY) |
| bool RefCountedThreadSafeBase::Release() const { |
| return ReleaseImpl(); |
| } |
| void RefCountedThreadSafeBase::AddRef() const { |
| AddRefImpl(); |
| } |
| void RefCountedThreadSafeBase::AddRefWithCheck() const { |
| AddRefWithCheckImpl(); |
| } |
| #endif |
| |
| } // namespace partition_alloc::internal::base::subtle |
