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// Copyright (c) 2018 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <interfaces/chain.h>
#include <sync.h>
#include <util/system.h>
#include <validation.h>
#include <memory>
#include <utility>
namespace interfaces {
namespace {
class LockImpl : public Chain::Lock
{
};
class LockingStateImpl : public LockImpl, public UniqueLock<CCriticalSection>
{
using UniqueLock::UniqueLock;
};
class ChainImpl : public Chain
{
public:
std::unique_ptr<Chain::Lock> lock(bool try_lock) override
{
auto result = MakeUnique<LockingStateImpl>(::cs_main, "cs_main", __FILE__, __LINE__, try_lock);
if (try_lock && result && !*result) return {};
// std::move necessary on some compilers due to conversion from
// LockingStateImpl to Lock pointer
return std::move(result);
}
std::unique_ptr<Chain::Lock> assumeLocked() override { return MakeUnique<LockImpl>(); }
};
} // namespace
std::unique_ptr<Chain> MakeChain() { return MakeUnique<ChainImpl>(); }
} // namespace interfaces
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