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#pragma once
#include <sdbusplus/bus.hpp>
#include <sdbusplus/message.hpp>
#include <sdbusplus/bus/match.hpp>
#include "data_types.hpp"
struct Loop;
namespace phosphor
{
namespace dbus
{
namespace monitoring
{
/** @class SDBusPlus
* @brief DBus access delegate implementation for sdbusplus.
*/
class SDBusPlus
{
private:
static auto& getBus()
{
static auto bus = sdbusplus::bus::new_default();
return bus;
}
static auto& getWatches()
{
static std::vector<sdbusplus::bus::match::match> watches;
return watches;
}
public:
/** @brief Invoke a method; ignore reply. */
template <typename ...Args>
static void callMethodNoReply(
const std::string& busName,
const std::string& path,
const std::string& interface,
const std::string& method,
Args&& ... args)
{
auto reqMsg = getBus().new_method_call(
busName.c_str(),
path.c_str(),
interface.c_str(),
method.c_str());
reqMsg.append(std::forward<Args>(args)...);
getBus().call_noreply(reqMsg);
// TODO: openbmc/openbmc#1719
// invoke these methods async, with a callback
// handler that checks for errors and logs.
}
/** @brief Invoke a method. */
template <typename ...Args>
static auto callMethod(
const std::string& busName,
const std::string& path,
const std::string& interface,
const std::string& method,
Args&& ... args)
{
auto reqMsg = getBus().new_method_call(
busName.c_str(),
path.c_str(),
interface.c_str(),
method.c_str());
reqMsg.append(std::forward<Args>(args)...);
return getBus().call(reqMsg);
}
/** @brief Invoke a method and read the response. */
template <typename Ret, typename ...Args>
static auto callMethodAndRead(
const std::string& busName,
const std::string& path,
const std::string& interface,
const std::string& method,
Args&& ... args)
{
Ret resp;
sdbusplus::message::message respMsg =
callMethod<Args...>(
busName,
path,
interface,
method,
std::forward<Args>(args)...);
respMsg.read(resp);
return resp;
}
/** @brief Register a DBus signal callback. */
static auto addMatch(
const std::string& match,
const sdbusplus::bus::match::match::callback_t& callback)
{
getWatches().emplace_back(
getBus(),
match,
callback);
}
/** @brief Look up the bus name for a path and interface */
static auto getBusName(
const std::string& path,
const std::string& interface)
{
std::vector<std::string> interfaces{interface};
auto object = callMethodAndRead<GetObject>(
MAPPER_BUSNAME,
MAPPER_PATH,
MAPPER_INTERFACE,
"GetObject",
path,
interfaces);
std::string name;
if (!object.empty())
{
name = object.begin()->first;
}
return name;
}
friend Loop;
};
} // namespace monitoring
} // namespace dbus
} // namespace phosphor
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