UDPClient.h

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// Copyright (c) FIRST and other WPILib contributors.
// Open Source Software; you can modify and/or share it under the terms of
// the WPILib BSD license file in the root directory of this project.
 
#ifndef WPINET_UDPCLIENT_H_
#define WPINET_UDPCLIENT_H_
 
#include <span>
#include <string>
#include <string_view>
 
#include <wpi/SmallVector.h>
#include <wpi/mutex.h>
 
namespace wpi {
 
class Logger;
 
class UDPClient {
  int m_lsd;
  int m_port;
  std::string m_address;
  Logger& m_logger;
 
 public:
  explicit UDPClient(Logger& logger);
  UDPClient(std::string_view address, Logger& logger);
  UDPClient(const UDPClient& other) = delete;
  UDPClient(UDPClient&& other);
  ~UDPClient();
 
  UDPClient& operator=(const UDPClient& other) = delete;
  UDPClient& operator=(UDPClient&& other);
 
  int start();
  int start(int port);
  void shutdown();
  // The passed in address MUST be a resolved IP address.
  int send(std::span<const uint8_t> data, std::string_view server, int port);
  int send(std::string_view data, std::string_view server, int port);
  int receive(uint8_t* data_received, int receive_len);
  int receive(uint8_t* data_received, int receive_len,
              SmallVectorImpl<char>* addr_received, int* port_received);
  int set_timeout(double timeout);
};
 
}  // namespace wpi
 
#endif  // WPINET_UDPCLIENT_H_