text: /** @file
  
    A brief file description
  
    @section license License
  
    Licensed to the Apache Software Foundation (ASF) under one
    or more contributor license agreements.  See the NOTICE file
    distributed with this work for additional information
    regarding copyright ownership.  The ASF licenses this file
    to you under the Apache License, Version 2.0 (the
    "License"); you may not use this file except in compliance
    with the License.  You may obtain a copy of the License at
  
        http://www.apache.org/licenses/LICENSE-2.0
  
    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.
   */
  
  #ifndef _UDP_IO_EVENT_H_
  #define _UDP_IO_EVENT_H_
  // ugly -- just encapsulate the I/O result so that it can be passed
  // back to the caller via continuation handler.
  
  class UDPIOEvent:public Event
  {
  public:
    UDPIOEvent():fd(-1), err(0), m(0), handle(0), b(0), bytesTransferred(0)
    {
    };
    ~UDPIOEvent() {
    };
    void setInfo(int fd_, IOBufferBlock * b_, int bytesTransferred_, int errno_)
    {
      fd = fd_;
      b = b_;
      bytesTransferred = bytesTransferred_;
      err = errno_;
    };
    void setInfo(int fd_, struct msghdr *m_, int bytesTransferred_, int errno_)
    {
      fd = fd_;
      m = m_;
      bytesTransferred = bytesTransferred_;
      err = errno_;
    };
    void setHandle(void *v)
    {
      handle = v;
    }
    void *getHandle()
    {
      return handle;
    }
    void free();
    int getBytesTransferred()
    {
      return bytesTransferred;
    }
    IOBufferBlock *getIOBufferBlock()
    {
      return b;
    }
    int getError()
    {
      return err;
    }
    Continuation *getContinuation()
    {
      return continuation;
    }
    static void free(UDPIOEvent * e);
  private:
    void *operator  new(size_t size);     // undefined
    int fd;
    int err;                      // error code
    struct msghdr *m;
    void *handle;                 // some extra data for the client handler
    Ptr<IOBufferBlock> b;      // holds buffer that I/O will go to
    int bytesTransferred;         // actual bytes transferred
  };
  
  extern ClassAllocator<UDPIOEvent> UDPIOEventAllocator;
  inline void
  UDPIOEvent::free(UDPIOEvent * e)
  {
    e->b = NULL;
    e->mutex = NULL;
    UDPIOEventAllocator.free(e);
  }
  #endif
  