polybar-dwm/include/components/ipc.hpp
2016-12-14 11:01:44 +01:00

55 lines
1.1 KiB
C++

#pragma once
#include "common.hpp"
#include "components/logger.hpp"
#include "events/signal_emitter.hpp"
#include "utils/concurrency.hpp"
#include "utils/functional.hpp"
POLYBAR_NS
/**
* Message types
*/
struct ipc_command {
static constexpr const char* prefix{"cmd:"};
char payload[EVENT_SIZE]{'\0'};
};
struct ipc_hook {
static constexpr const char* prefix{"hook:"};
char payload[EVENT_SIZE]{'\0'};
};
struct ipc_action {
static constexpr const char* prefix{"action:"};
char payload[EVENT_SIZE]{'\0'};
};
/**
* Component used for inter-process communication.
*
* A unique messaging channel will be setup for each
* running process which will allow messages and
* events to be sent to the process externally.
*/
class ipc {
public:
static unique_ptr<ipc> make();
explicit ipc(signal_emitter& emitter, const logger& logger) : m_sig(emitter), m_log(logger) {}
~ipc();
void receive_messages();
protected:
void parse(const string& payload) const;
private:
signal_emitter& m_sig;
const logger& m_log;
string m_fifo;
int m_fd;
stateflag m_running{false};
};
POLYBAR_NS_END