cereal/messaging/messaging.h

#pragma once

#include <cstddef>
#include <map>
#include <string>
#include <vector>
#include <utility>
#include <time.h>



#ifdef __APPLE__
#define CLOCK_BOOTTIME CLOCK_MONOTONIC
#endif

#define MSG_MULTIPLE_PUBLISHERS 100

bool messaging_use_zmq();

class Context {
public:
  virtual void * getRawContext() = 0;
  static Context * create();
  virtual ~Context(){}
};

class Message {
public:
  virtual void init(size_t size) = 0;
  virtual void init(char * data, size_t size) = 0;
  virtual void close() = 0;
  virtual size_t getSize() = 0;
  virtual char * getData() = 0;
  virtual ~Message(){}
};


class SubSocket {
public:
  virtual int connect(Context *context, std::string endpoint, std::string address, bool conflate=false, bool check_endpoint=true) = 0;
  virtual void setTimeout(int timeout) = 0;
  virtual Message *receive(bool non_blocking=false) = 0;
  virtual void * getRawSocket() = 0;
  static SubSocket * create();
  static SubSocket * create(Context * context, std::string endpoint, std::string address="127.0.0.1", bool conflate=false, bool check_endpoint=true);
  virtual ~SubSocket(){}
};

class PubSocket {
public:
  virtual int connect(Context *context, std::string endpoint, bool check_endpoint=true) = 0;
  virtual int sendMessage(Message *message) = 0;
  virtual int send(char *data, size_t size) = 0;
  virtual bool all_readers_updated() = 0;
  static PubSocket * create();
  static PubSocket * create(Context * context, std::string endpoint, bool check_endpoint=true);
  static PubSocket * create(Context * context, std::string endpoint, int port, bool check_endpoint=true);
  virtual ~PubSocket(){}
};

class Poller {
public:
  virtual void registerSocket(SubSocket *socket) = 0;
  virtual std::vector<SubSocket*> poll(int timeout) = 0;
  static Poller * create();
  static Poller * create(std::vector<SubSocket*> sockets);
  virtual ~Poller(){}
};