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//
// immer: immutable data structures for C++
// Copyright (C) 2016, 2017, 2018 Juan Pedro Bolivar Puente
//
// This software is distributed under the Boost Software License, Version 1.0.
// See accompanying file LICENSE or copy at http://boost.org/LICENSE_1_0.txt
//
#pragma once
namespace immer {
struct disowned
{};
struct no_spinlock
{
bool try_lock() { return true; }
void lock() {}
void unlock() {}
struct scoped_lock
{
scoped_lock(no_spinlock&) {}
};
};
/*!
* Disables reference counting, to be used with an alternative garbage
* collection strategy like a `gc_heap`.
*/
struct no_refcount_policy
{
using spinlock_type = no_spinlock;
no_refcount_policy(){};
no_refcount_policy(disowned) {}
void inc() {}
bool dec() { return false; }
void dec_unsafe() {}
bool unique() { return false; }
};
} // namespace immer
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