xref: /recipes/reactor/s06-s05-Poller.h.diff

 // excerpts from http://code.google.com/p/muduo/
 //
 // Use of this source code is governed by a BSD-style license
 // that can be found in the License file.
 //
 // Author: Shuo Chen (chenshuo at chenshuo dot com)
 
 #ifndef MUDUO_NET_POLLER_H
 #define MUDUO_NET_POLLER_H
 
 #include <map>
 #include <vector>
 
 #include "datetime/Timestamp.h"
 #include "EventLoop.h"
 
 struct pollfd;
 
 namespace muduo
 {
 
 class Channel;
 
 ///
 /// IO Multiplexing with poll(2).
 ///
 /// This class doesn't own the Channel objects.
 class Poller : boost::noncopyable
 {
  public:
   typedef std::vector<Channel*> ChannelList;
 
   Poller(EventLoop* loop);
   ~Poller();
 
   /// Polls the I/O events.
   /// Must be called in the loop thread.
   Timestamp poll(int timeoutMs, ChannelList* activeChannels);
 
   /// Changes the interested I/O events.
   /// Must be called in the loop thread.
   void updateChannel(Channel* channel);
+  /// Remove the channel, when it destructs.
+  /// Must be called in the loop thread.
+  void removeChannel(Channel* channel);
 
   void assertInLoopThread() { ownerLoop_->assertInLoopThread(); }
 
  private:
   void fillActiveChannels(int numEvents,
                           ChannelList* activeChannels) const;
 
   typedef std::vector<struct pollfd> PollFdList;
   typedef std::map<int, Channel*> ChannelMap;
 
   EventLoop* ownerLoop_;
   PollFdList pollfds_;
   ChannelMap channels_;
 };
 
 }
 #endif  // MUDUO_NET_POLLER_H