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/**
* (c) 2025 by Mega Limited, New Zealand
*
* This file is part of the MEGA SDK - Client Access Engine.
*
* Applications using the MEGA API must present a valid application key
* and comply with the the rules set forth in the Terms of Service.
*
* The MEGA SDK is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* @copyright Simplified (2-clause) BSD License.
*
* You should have received a copy of the license along with this
* program.
*/
#ifndef MEGA_UDP_SOCKET_H
#define MEGA_UDP_SOCKET_H
#include <chrono>
#include <memory>
#include <stdint.h>
#include <string>
#include <variant>
struct sockaddr_in;
struct sockaddr_in6;
struct sockaddr;
namespace mega
{
class UdpSocket final
{
public:
UdpSocket(const std::string& remoteIP, int remotePort);
~UdpSocket();
bool isIPv4() const;
struct Communication
{
int code{};
std::string message;
};
Communication sendSyncMessage(const std::string& message);
Communication receiveSyncMessage(const std::chrono::high_resolution_clock::time_point& timeout);
private:
bool createRemoteAddress(const std::string& remoteIP, int remotePort);
sockaddr* getSockaddr();
int mInetType{};
std::unique_ptr<std::variant<sockaddr_in, sockaddr_in6>> mRemoteAddress;
int mSocket{};
//
// OS-specific implementations
//
bool initializeSocketSupport();
void cleanupSocketSupport();
bool openNonblockingSocket();
intmax_t sendtoWrapper(const std::string& message);
static bool noDataYet();
void closeSocket();
static Communication getSocketError();
static int getSocketErrorCode();
};
} // namespace mega
#endif // MEGA_UDP_SOCKET_H
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