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