1  // Copyright (c) 2021-present The Bitcoin Core developers
 2  // Distributed under the MIT software license, see the accompanying
 3  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 4  
 5  #include <init.h>
 6  #include <interfaces/chain.h>
 7  #include <interfaces/echo.h>
 8  #include <interfaces/init.h>
 9  #include <interfaces/ipc.h>
10  #include <interfaces/node.h>
11  #include <interfaces/rpc.h>
12  #include <interfaces/wallet.h>
13  #include <node/context.h>
14  #include <util/check.h>
15  
16  #include <memory>
17  
18  namespace init {
19  namespace {
20  const char* EXE_NAME = "bitcoin-node";
21  
22  class BitcoinNodeInit : public interfaces::Init
23  {
24  public:
25      BitcoinNodeInit(node::NodeContext& node, const char* arg0)
26          : m_node(node),
27            m_ipc(interfaces::MakeIpc(EXE_NAME, arg0, *this))
28      {
29          InitContext(m_node);
30          m_node.init = this;
31      }
32      std::unique_ptr<interfaces::Node> makeNode() override { return interfaces::MakeNode(m_node); }
33      std::unique_ptr<interfaces::Chain> makeChain() override { return interfaces::MakeChain(m_node); }
34      std::unique_ptr<interfaces::Mining> makeMining() override { return interfaces::MakeMining(m_node); }
35      std::unique_ptr<interfaces::WalletLoader> makeWalletLoader(interfaces::Chain& chain) override
36      {
37          return MakeWalletLoader(chain, *Assert(m_node.args));
38      }
39      std::unique_ptr<interfaces::Echo> makeEcho() override { return interfaces::MakeEcho(); }
40      std::unique_ptr<interfaces::Rpc> makeRpc() override { return interfaces::MakeRpc(m_node); }
41      interfaces::Ipc* ipc() override { return m_ipc.get(); }
42      bool canListenIpc() override { return true; }
43      const char* exeName() override { return EXE_NAME; }
44      node::NodeContext& m_node;
45      std::unique_ptr<interfaces::Ipc> m_ipc;
46  };
47  } // namespace
48  } // namespace init
49  
50  namespace interfaces {
51  std::unique_ptr<Init> MakeNodeInit(node::NodeContext& node, int argc, char* argv[], int& exit_status)
52  {
53      auto init = std::make_unique<init::BitcoinNodeInit>(node, argc > 0 ? argv[0] : "");
54      // Check if bitcoin-node is being invoked as an IPC server. If so, then
55      // bypass normal execution and just respond to requests over the IPC
56      // channel and return null.
57      if (init->m_ipc->startSpawnedProcess(argc, argv, exit_status)) {
58          return nullptr;
59      }
60      return init;
61  }
62  } // namespace interfaces