Bitcoin Core  24.99.0
P2P Digital Currency
bitcoin-node.cpp
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1 // Copyright (c) 2021-2022 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 <interfaces/chain.h>
6 #include <interfaces/echo.h>
7 #include <interfaces/init.h>
8 #include <interfaces/ipc.h>
9 #include <interfaces/node.h>
10 #include <interfaces/wallet.h>
11 #include <node/context.h>
12 #include <util/check.h>
13 #include <util/system.h>
14 
15 #include <memory>
16 
17 namespace init {
18 namespace {
19 const char* EXE_NAME = "bitcoin-node";
20 
21 class BitcoinNodeInit : public interfaces::Init
22 {
23 public:
24  BitcoinNodeInit(node::NodeContext& node, const char* arg0)
25  : m_node(node),
26  m_ipc(interfaces::MakeIpc(EXE_NAME, arg0, *this))
27  {
28  m_node.args = &gArgs;
29  m_node.init = this;
30  }
31  std::unique_ptr<interfaces::Node> makeNode() override { return interfaces::MakeNode(m_node); }
32  std::unique_ptr<interfaces::Chain> makeChain() override { return interfaces::MakeChain(m_node); }
33  std::unique_ptr<interfaces::WalletLoader> makeWalletLoader(interfaces::Chain& chain) override
34  {
35  return MakeWalletLoader(chain, *Assert(m_node.args));
36  }
37  std::unique_ptr<interfaces::Echo> makeEcho() override { return interfaces::MakeEcho(); }
38  interfaces::Ipc* ipc() override { return m_ipc.get(); }
40  std::unique_ptr<interfaces::Ipc> m_ipc;
41 };
42 } // namespace
43 } // namespace init
44 
45 namespace interfaces {
46 std::unique_ptr<Init> MakeNodeInit(node::NodeContext& node, int argc, char* argv[], int& exit_status)
47 {
48  auto init = std::make_unique<init::BitcoinNodeInit>(node, argc > 0 ? argv[0] : "");
49  // Check if bitcoin-node is being invoked as an IPC server. If so, then
50  // bypass normal execution and just respond to requests over the IPC
51  // channel and return null.
52  if (init->m_ipc->startSpawnedProcess(argc, argv, exit_status)) {
53  return nullptr;
54  }
55  return init;
56 }
57 } // namespace interfaces
node::NodeContext & m_node
std::unique_ptr< interfaces::Ipc > m_ipc
std::unique_ptr< interfaces::Init > init
int exit_status
#define Assert(val)
Identity function.
Definition: check.h:73
Interface giving clients (wallet processes, maybe other analysis tools in the future) ability to acce...
Definition: chain.h:119
Initial interface created when a process is first started, and used to give and get access to other i...
Definition: init.h:30
Interface providing access to interprocess-communication (IPC) functionality.
Definition: ipc.h:45
std::unique_ptr< Node > MakeNode(node::NodeContext &context)
Return implementation of Node interface.
Definition: interfaces.cpp:796
std::unique_ptr< Echo > MakeEcho()
Return implementation of Echo interface.
Definition: interfaces.cpp:52
std::unique_ptr< WalletLoader > MakeWalletLoader(Chain &chain, ArgsManager &args)
Return implementation of ChainClient interface for a wallet loader.
Definition: dummywallet.cpp:62
std::unique_ptr< Ipc > MakeIpc(const char *exe_name, const char *process_argv0, Init &init)
Return implementation of Ipc interface.
Definition: interfaces.cpp:74
std::unique_ptr< Init > MakeNodeInit(node::NodeContext &node, int argc, char *argv[], int &exit_status)
Return implementation of Init interface for the node process.
std::unique_ptr< Chain > MakeChain(node::NodeContext &node)
Return implementation of Chain interface.
Definition: interfaces.cpp:797
Definition: ipc.h:12
Definition: init.h:25
NodeContext struct containing references to chain state and connection state.
Definition: context.h:43
ArgsManager * args
Definition: context.h:56
interfaces::Init * init
Init interface for initializing current process and connecting to other processes.
Definition: context.h:47
ArgsManager gArgs
Definition: system.cpp:73