Bitcoin Core 22.99.0
P2P Digital Currency
ipc.h
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1// Copyright (c) 2021 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#ifndef BITCOIN_INTERFACES_IPC_H
6#define BITCOIN_INTERFACES_IPC_H
7
8#include <functional>
9#include <memory>
10#include <typeindex>
11
12namespace ipc {
13struct Context;
14} // namespace ipc
15
16namespace interfaces {
17class Init;
18
44class Ipc
45{
46public:
47 virtual ~Ipc() = default;
48
50 virtual std::unique_ptr<Init> spawnProcess(const char* exe_name) = 0;
51
55 virtual bool startSpawnedProcess(int argc, char* argv[], int& exit_status) = 0;
56
59 template<typename Interface>
60 void addCleanup(Interface& iface, std::function<void()> cleanup)
61 {
62 addCleanup(typeid(Interface), &iface, std::move(cleanup));
63 }
64
66 virtual ipc::Context& context() = 0;
67
68protected:
71 virtual void addCleanup(std::type_index type, void* iface, std::function<void()> cleanup) = 0;
72};
73
75std::unique_ptr<Ipc> MakeIpc(const char* exe_name, const char* process_argv0, Init& init);
76} // namespace interfaces
77
78#endif // BITCOIN_INTERFACES_IPC_H
Initial interface created when a process is first started, and used to give and get access to other i...
Definition: init.h:27
Interface providing access to interprocess-communication (IPC) functionality.
Definition: ipc.h:45
virtual ipc::Context & context()=0
IPC context struct accessor (see struct definition for more description).
virtual std::unique_ptr< Init > spawnProcess(const char *exe_name)=0
Spawn a child process returning pointer to its Init interface.
virtual bool startSpawnedProcess(int argc, char *argv[], int &exit_status)=0
If this is a spawned process, block and handle requests from the parent process by forwarding them to...
virtual ~Ipc()=default
virtual void addCleanup(std::type_index type, void *iface, std::function< void()> cleanup)=0
Internal implementation of public addCleanup method (above) as a type-erased virtual function,...
void addCleanup(Interface &iface, std::function< void()> cleanup)
Add cleanup callback to remote interface that will run when the interface is deleted.
Definition: ipc.h:60
std::unique_ptr< Ipc > MakeIpc(const char *exe_name, const char *process_argv0, Init &init)
Return implementation of Ipc interface.
Definition: interfaces.cpp:74
Definition: ipc.h:12
Context struct used to give IPC protocol implementations or implementation hooks access to applicatio...
Definition: context.h:15