mirror of https://github.com/oxen-io/lokinet
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
70 lines
1.5 KiB
C++
70 lines
1.5 KiB
C++
#pragma once
|
|
|
|
extern "C"
|
|
{
|
|
#include <systemd/sd-bus.h>
|
|
}
|
|
#include <memory>
|
|
#include <stdexcept>
|
|
#include <string>
|
|
|
|
namespace llarp::linux
|
|
{
|
|
/// exception for connecting to system bus
|
|
class system_bus_exception : public std::runtime_error
|
|
{
|
|
public:
|
|
explicit system_bus_exception(int err);
|
|
};
|
|
|
|
/// exception for a failed calling of a dbus method
|
|
class dbus_call_exception : public std::runtime_error
|
|
{
|
|
public:
|
|
explicit dbus_call_exception(std::string meth, int err);
|
|
};
|
|
|
|
class DBUS
|
|
{
|
|
struct sd_bus_deleter
|
|
{
|
|
void
|
|
operator()(sd_bus* ptr) const
|
|
{
|
|
sd_bus_unref(ptr);
|
|
}
|
|
};
|
|
std::unique_ptr<sd_bus, sd_bus_deleter> m_ptr;
|
|
const std::string m_interface;
|
|
const std::string m_instance;
|
|
const std::string m_call;
|
|
|
|
public:
|
|
DBUS(std::string _interface, std::string _instance, std::string _call);
|
|
|
|
template <typename... T>
|
|
void
|
|
operator()(std::string method, const char* arg_format, T... args)
|
|
{
|
|
sd_bus_error error = SD_BUS_ERROR_NULL;
|
|
sd_bus_message* msg = nullptr;
|
|
auto r = sd_bus_call_method(
|
|
m_ptr.get(),
|
|
m_interface.c_str(),
|
|
m_instance.c_str(),
|
|
m_call.c_str(),
|
|
method.c_str(),
|
|
&error,
|
|
&msg,
|
|
arg_format,
|
|
args...);
|
|
|
|
if (r < 0)
|
|
throw dbus_call_exception{std::move(method), r};
|
|
|
|
sd_bus_message_unref(msg);
|
|
sd_bus_error_free(&error);
|
|
}
|
|
};
|
|
} // namespace llarp::linux
|