00001 #ifndef __XRD_POLLDEV_H__ 00002 #define __XRD_POLLDEV_H__ 00003 /******************************************************************************/ 00004 /* */ 00005 /* X r d P o l l D e v . h h */ 00006 /* */ 00007 /* (c) 2004 by the Board of Trustees of the Leland Stanford, Jr., University */ 00008 /* Produced by Andrew Hanushevsky for Stanford University under contract */ 00009 /* DE-AC02-76-SFO0515 with the Department of Energy */ 00010 /* */ 00011 /* This file is part of the XRootD software suite. */ 00012 /* */ 00013 /* XRootD is free software: you can redistribute it and/or modify it under */ 00014 /* the terms of the GNU Lesser General Public License as published by the */ 00015 /* Free Software Foundation, either version 3 of the License, or (at your */ 00016 /* option) any later version. */ 00017 /* */ 00018 /* XRootD is distributed in the hope that it will be useful, but WITHOUT */ 00019 /* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */ 00020 /* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */ 00021 /* License for more details. */ 00022 /* */ 00023 /* You should have received a copy of the GNU Lesser General Public License */ 00024 /* along with XRootD in a file called COPYING.LESSER (LGPL license) and file */ 00025 /* COPYING (GPL license). If not, see <http://www.gnu.org/licenses/>. */ 00026 /* */ 00027 /* The copyright holder's institutional names and contributor's names may not */ 00028 /* be used to endorse or promote products derived from this software without */ 00029 /* specific prior written permission of the institution or contributor. */ 00030 /******************************************************************************/ 00031 00032 #include <sys/epoll.h> 00033 00034 #include "Xrd/XrdPoll.hh" 00035 00036 #ifndef EPOLLRDHUP 00037 #define EPOLLRDHUP 0 00038 #endif 00039 00040 class XrdPollE : public XrdPoll 00041 { 00042 public: 00043 00044 void Disable(XrdPollInfo &pInfo, const char *etxt=0); 00045 00046 int Enable(XrdPollInfo &pInfo); 00047 00048 void Start(XrdSysSemaphore *syncp, int &rc); 00049 00050 XrdPollE(struct epoll_event *ptab, int numfd, int pfd) 00051 {PollTab = ptab; PollMax = numfd; PollDfd = pfd;} 00052 ~XrdPollE(); 00053 00054 protected: 00055 void Exclude(XrdPollInfo &pInfo); 00056 int Include(XrdPollInfo &pInfo); 00057 const char *x2Text(unsigned int evf, char *buff); 00058 00059 private: 00060 void remFD(XrdPollInfo &pInfo, unsigned int events); 00061 00062 #ifdef EPOLLONESHOT 00063 static const int ePollOneShot = EPOLLONESHOT; 00064 #else 00065 static const int ePollOneShot = 0; 00066 #endif 00067 static const int ePollEvents = EPOLLIN | EPOLLHUP | EPOLLPRI | EPOLLERR | 00068 EPOLLRDHUP | ePollOneShot; 00069 00070 struct epoll_event *PollTab; 00071 int PollDfd; 00072 int PollMax; 00073 }; 00074 #endif