forked from OSchip/llvm-project
54 lines
876 B
C++
54 lines
876 B
C++
//===---------------------SharingPtr.cpp ------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Utility/SharingPtr.h"
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namespace lldb_private {
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namespace imp
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{
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template <class T>
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inline T
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increment(T& t)
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{
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return __sync_add_and_fetch(&t, 1);
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}
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template <class T>
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inline T
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decrement(T& t)
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{
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return __sync_add_and_fetch(&t, -1);
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}
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shared_count::~shared_count()
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{
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}
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void
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shared_count::add_shared()
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{
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increment(shared_owners_);
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}
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void
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shared_count::release_shared()
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{
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if (decrement(shared_owners_) == -1)
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{
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on_zero_shared();
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delete this;
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}
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}
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} // imp
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} // namespace lldb
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