asyncudpsocket.h

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#ifndef UTILS_BASE_ASYNCUDPSOCKET_H_
#define UTILS_BASE_ASYNCUDPSOCKET_H_

#include "asyncpacketsocket.h"
#include "socketfactory.h"

namespace utils_base {

// Provides the ability to receive packets asynchronously.  Sends are not
// buffered since it is acceptable to drop packets under high load.
class AsyncUDPSocket : public AsyncPacketSocket {
public:
  AsyncUDPSocket(AsyncSocket* socket);
  virtual ~AsyncUDPSocket();

private:
  char* buf_;
  size_t size_;

  // Called when the underlying socket is ready to be read from.
  void OnReadEvent(AsyncSocket* socket);
};

// Creates a new socket for sending asynchronous UDP packets using an
// asynchronous socket from the given factory.
inline AsyncUDPSocket* CreateAsyncUDPSocket(SocketFactory* factory) {
  return new AsyncUDPSocket(factory->CreateAsyncSocket(SOCK_DGRAM));
}

} // namespace utils_base

#endif // UTILS_BASE_ASYNCUDPSOCKET_H_