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#pragma once
#include "../utils.hpp"
#include "DirectConnection.hpp"
#include "PubsubKey.hpp"
#include <mutex>
namespace sibs
{
class BootstrapConnectionException : public std::runtime_error
{
public:
BootstrapConnectionException(const std::string &errMsg) : std::runtime_error(errMsg) {}
};
class PubsubKeyAlreadyListeningException : public std::runtime_error
{
public:
PubsubKeyAlreadyListeningException(const std::string &errMsg) : std::runtime_error(errMsg) {}
};
// @peer is nullptr is data was sent by local user.
// Return false if you want to stop listening on the key
using BoostrapConnectionListenCallbackFunc = std::function<bool(const DirectConnectionPeer *peer, const void *data, const usize size)>;
struct ListenHandle
{
PubsubKey key;
};
class BootstrapConnection
{
DISABLE_COPY(BootstrapConnection)
public:
// Throws BootstrapConnectionException on error
BootstrapConnection(const Ipv4 &bootstrapAddress);
// If we are already listening on the key @pubsubKey then the callback function is overwritten
ListenHandle listen(const PubsubKey &pubsubKey, BoostrapConnectionListenCallbackFunc callbackFunc);
// Returns false if data is larger than 800kb.
// Note: @data is copied in this function.
// Note: You can't put data on a pubsubkey that you are not listening on. Call @listen first.
bool put(const PubsubKey &pubsubKey, const void *data, const usize size);
bool cancelListen(const ListenHandle &listener);
bool areWeListeningOnKey(const PubsubKey &pubsubKey);
std::vector<std::shared_ptr<DirectConnectionPeer>> getPeers();
private:
void receiveDataFromServer(std::shared_ptr<DirectConnectionPeer> peer, MessageType messageType, const void *data, const usize size);
void receiveDataFromPeer(std::shared_ptr<DirectConnectionPeer> peer, MessageType messageType, const void *data, const usize size);
private:
DirectConnections connections;
std::shared_ptr<DirectConnectionPeer> serverPeer;
PubsubKeyMap<BoostrapConnectionListenCallbackFunc> listenCallbackFuncs;
PubsubKeyMap<std::vector<std::shared_ptr<DirectConnectionPeer>>> subscribedPeers;
std::recursive_mutex listenerCallbackFuncMutex;
std::recursive_mutex subscribedPeersMutex;
};
}
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