XRootD
XrdPollE.hh
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1 #ifndef __XRD_POLLDEV_H__
2 #define __XRD_POLLDEV_H__
3 /******************************************************************************/
4 /* */
5 /* X r d P o l l D e v . h h */
6 /* */
7 /* (c) 2004 by the Board of Trustees of the Leland Stanford, Jr., University */
8 /* Produced by Andrew Hanushevsky for Stanford University under contract */
9 /* DE-AC02-76-SFO0515 with the Department of Energy */
10 /* */
11 /* This file is part of the XRootD software suite. */
12 /* */
13 /* XRootD is free software: you can redistribute it and/or modify it under */
14 /* the terms of the GNU Lesser General Public License as published by the */
15 /* Free Software Foundation, either version 3 of the License, or (at your */
16 /* option) any later version. */
17 /* */
18 /* XRootD is distributed in the hope that it will be useful, but WITHOUT */
19 /* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
20 /* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */
21 /* License for more details. */
22 /* */
23 /* You should have received a copy of the GNU Lesser General Public License */
24 /* along with XRootD in a file called COPYING.LESSER (LGPL license) and file */
25 /* COPYING (GPL license). If not, see <http://www.gnu.org/licenses/>. */
26 /* */
27 /* The copyright holder's institutional names and contributor's names may not */
28 /* be used to endorse or promote products derived from this software without */
29 /* specific prior written permission of the institution or contributor. */
30 /******************************************************************************/
31 
32 #include <sys/epoll.h>
33 
34 #include "Xrd/XrdPoll.hh"
35 
36 #ifndef EPOLLRDHUP
37 #define EPOLLRDHUP 0
38 #endif
39 
40 class XrdPollE : public XrdPoll
41 {
42 public:
43 
44  void Disable(XrdPollInfo &pInfo, const char *etxt=0);
45 
46  int Enable(XrdPollInfo &pInfo);
47 
48  void Start(XrdSysSemaphore *syncp, int &rc);
49 
50  XrdPollE(struct epoll_event *ptab, int numfd, int pfd, int wfd)
51  : WaitFdSem(0)
52  {PollTab = ptab; PollMax = numfd; PollDfd = pfd;
53  WaitFd = wfd;
54  }
55 
56  ~XrdPollE();
57 
58 protected:
59  void Exclude(XrdPollInfo &pInfo);
60  int Include(XrdPollInfo &pInfo);
61 const char *x2Text(unsigned int evf, char *buff);
62 
63 private:
64 int AddWaitFd();
65 void HandleWaitFd(const unsigned int events);
66 void remFD(XrdPollInfo &pInfo, unsigned int events);
67 void Wait4Poller();
68 
69 #ifdef EPOLLONESHOT
70  static const int ePollOneShot = EPOLLONESHOT;
71 #else
72  static const int ePollOneShot = 0;
73 #endif
74  static const int ePollEvents = EPOLLIN | EPOLLHUP | EPOLLPRI | EPOLLERR |
75  EPOLLRDHUP | ePollOneShot;
76 
77 struct epoll_event *PollTab;
78  int PollDfd;
79  int PollMax;
80  int WaitFd;
81 XrdSysSemaphore WaitFdSem;
82 };
83 #endif
#define EPOLLRDHUP
Definition: XrdPollE.hh:37
const char * x2Text(unsigned int evf, char *buff)
Definition: XrdPollE.icc:380
XrdPollE(struct epoll_event *ptab, int numfd, int pfd, int wfd)
Definition: XrdPollE.hh:50
void Exclude(XrdPollInfo &pInfo)
Definition: XrdPollE.icc:184
void Disable(XrdPollInfo &pInfo, const char *etxt=0)
Definition: XrdPollE.icc:119
void Start(XrdSysSemaphore *syncp, int &rc)
Definition: XrdPollE.icc:290
int Enable(XrdPollInfo &pInfo)
Definition: XrdPollE.icc:155
int Include(XrdPollInfo &pInfo)
Definition: XrdPollE.icc:241
~XrdPollE()
Definition: XrdPollE.icc:88