mirror of https://github.com/bitcoin/bitcoin.git
94 lines
3.4 KiB
C++
94 lines
3.4 KiB
C++
// Copyright (c) 2019-2022 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_NODE_CONTEXT_H
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#define BITCOIN_NODE_CONTEXT_H
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#include <atomic>
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#include <cstdlib>
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#include <functional>
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#include <memory>
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#include <vector>
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class ArgsManager;
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class AddrMan;
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class BanMan;
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class BaseIndex;
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class CBlockPolicyEstimator;
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class CConnman;
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class ValidationSignals;
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class CScheduler;
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class CTxMemPool;
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class ChainstateManager;
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class ECC_Context;
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class NetGroupManager;
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class PeerManager;
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namespace interfaces {
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class Chain;
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class ChainClient;
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class Init;
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class WalletLoader;
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} // namespace interfaces
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namespace kernel {
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struct Context;
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}
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namespace util {
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class SignalInterrupt;
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}
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namespace node {
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class KernelNotifications;
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//! NodeContext struct containing references to chain state and connection
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//! state.
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//!
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//! This is used by init, rpc, and test code to pass object references around
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//! without needing to declare the same variables and parameters repeatedly, or
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//! to use globals. More variables could be added to this struct (particularly
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//! references to validation objects) to eliminate use of globals
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//! and make code more modular and testable. The struct isn't intended to have
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//! any member functions. It should just be a collection of references that can
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//! be used without pulling in unwanted dependencies or functionality.
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struct NodeContext {
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//! libbitcoin_kernel context
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std::unique_ptr<kernel::Context> kernel;
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std::unique_ptr<ECC_Context> ecc_context;
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//! Init interface for initializing current process and connecting to other processes.
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interfaces::Init* init{nullptr};
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//! Interrupt object used to track whether node shutdown was requested.
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util::SignalInterrupt* shutdown{nullptr};
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std::unique_ptr<AddrMan> addrman;
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std::unique_ptr<CConnman> connman;
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std::unique_ptr<CTxMemPool> mempool;
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std::unique_ptr<const NetGroupManager> netgroupman;
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std::unique_ptr<CBlockPolicyEstimator> fee_estimator;
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std::unique_ptr<PeerManager> peerman;
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std::unique_ptr<ChainstateManager> chainman;
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std::unique_ptr<BanMan> banman;
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ArgsManager* args{nullptr}; // Currently a raw pointer because the memory is not managed by this struct
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std::vector<BaseIndex*> indexes; // raw pointers because memory is not managed by this struct
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std::unique_ptr<interfaces::Chain> chain;
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//! List of all chain clients (wallet processes or other client) connected to node.
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std::vector<std::unique_ptr<interfaces::ChainClient>> chain_clients;
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//! Reference to chain client that should used to load or create wallets
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//! opened by the gui.
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interfaces::WalletLoader* wallet_loader{nullptr};
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std::unique_ptr<CScheduler> scheduler;
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std::function<void()> rpc_interruption_point = [] {};
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//! Issues blocking calls about sync status, errors and warnings
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std::unique_ptr<KernelNotifications> notifications;
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//! Issues calls about blocks and transactions
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std::unique_ptr<ValidationSignals> validation_signals;
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std::atomic<int> exit_status{EXIT_SUCCESS};
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//! Declare default constructor and destructor that are not inline, so code
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//! instantiating the NodeContext struct doesn't need to #include class
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//! definitions for all the unique_ptr members.
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NodeContext();
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~NodeContext();
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};
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} // namespace node
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#endif // BITCOIN_NODE_CONTEXT_H
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