FdPoll.hxx

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#if !defined(RESIP_FDPOLL_HXX)
#define RESIP_FDPOLL_HXX
 
#include "rutil/Socket.hxx"
 
/* The Makefile system may define the following:
 * HAVE_EPOLL: system call epoll() is available
 * HAVE_POLL: system call poll() is available (Windows uses WSAPoll())
 *
 * An implementation based upon FdSet (and select()) is always available.
 *
 * This file and class is somewhat misnamed. It should really be
 * called "SocketEvent" or such. The name "FdPoll" originated
 * from an epoll-specific implementation.
 */
 
#if defined(HAVE_EPOLL)
#define RESIP_POLL_IMPL_EPOLL
#endif
 
#if defined(HAVE_POLL) || (_WIN32_WINNT >= 0x0600)
#define RESIP_POLL_IMPL_POLL
#endif
 
namespace resip {
 
 
typedef unsigned short FdPollEventMask;
#define FPEM_Read       0x0001  // POLLIN
#define FPEM_Write      0x0002  // POLLOUT
#define FPEM_Error      0x0004  // POLLERR      (select exception)
#define FPEM_Edge       0x4000  // EPOLLET
 
class FdPollGrp;
 
typedef struct FdPollItemFake* FdPollItemHandle;
 
class FdPollItemIf
{
   //friend class FdPollGrp;
   public:
      FdPollItemIf() { };
      virtual ~FdPollItemIf();
 
      virtual void processPollEvent(FdPollEventMask mask) = 0;
};
 
class FdPollItemBase : public FdPollItemIf
{
   //friend class FdPollGrp;
   public:
      FdPollItemBase(FdPollGrp *grp, Socket fd, FdPollEventMask mask);
      virtual ~FdPollItemBase();
 
   protected:
 
      FdPollGrp*        mPollGrp;
      Socket            mPollSocket;
      FdPollItemHandle  mPollHandle;
};
 
class FdPollGrp
{
   public:
      FdPollGrp();
      virtual ~FdPollGrp();
 
      typedef enum {FdSetImpl = 0, PollImpl, EPollImpl } ImplType;
 
      static FdPollGrp* create(const char *implName=NULL);
      static const char* getImplList();
 
      virtual const char* getImplName() const = 0;
      virtual ImplType getImplType() const = 0;
 
      virtual FdPollItemHandle addPollItem(Socket sock, FdPollEventMask newMask, FdPollItemIf *item) = 0;
      virtual void modPollItem(FdPollItemHandle handle, FdPollEventMask newMask) = 0;
      virtual void delPollItem(FdPollItemHandle handle) = 0;
 
      virtual bool waitAndProcess(int ms=0) = 0;
 
      virtual int getEPollFd() const;
 
      // Legacy API's (deprecated) - use waitAndProcess instead
      virtual void buildFdSet(FdSet& fdSet)=0;
      virtual bool processFdSet(FdSet& fdset)=0;
 
   protected:
      void processItem(FdPollItemIf *item, FdPollEventMask mask);
};
 
 
 
 
} // namespace resip
 
#endif 
 
/* ====================================================================
 * The Vovida Software License, Version 1.0
 *
 * Copyright (c) 2000-2005 Jacob Butcher
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 *
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