abstracteventsource.h

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*
* This file contains private API, this might break at any time between releases.
* You have been warned!
*
*/
#ifndef ZYPP_NG_BASE_ABSTRACTEVENTSOURCE_H_INCLUDED
#define ZYPP_NG_BASE_ABSTRACTEVENTSOURCE_H_INCLUDED

#include <zypp-core/ng/base/zyppglobal.h>
#include <zypp-core/ng/base/Signals>
#include <zypp-core/ng/base/Base>

namespace zyppng {

class EventDispatcher;
class AbstractEventSourcePrivate;

class  AbstractEventSource : public Base
{
  ZYPP_DECLARE_PRIVATE(AbstractEventSource)
public:

  enum EventTypes {
    Read  = 0x01,  //< The fd is ready to read data without blocking
    Write = 0x02,  //< The fd has written pending data
    Exception = 0x04, //< A exception has happend on the fd
    Error = 0x08      //< There was a error polling the fd
  };

  AbstractEventSource();
  AbstractEventSource( AbstractEventSourcePrivate &dd );
  ~AbstractEventSource() override;

  std::weak_ptr<EventDispatcher> eventDispatcher () const;

  virtual void onFdReady ( int fd, int events ) = 0;

  virtual void onSignal  ( int signal ) = 0;

protected:
  void updateFdWatch ( int fd, int mode );

  void removeFdWatch   ( int fd );
};

}

#endif