4 // Fraunhofer Institute for Open Communication Systems (FOKUS)
5 // Competence Center NETwork research (NET), St. Augustin, GERMANY
6 // Stefan Bund <g0dil@berlios.de>
8 // This program is free software; you can redistribute it and/or modify
9 // it under the terms of the GNU General Public License as published by
10 // the Free Software Foundation; either version 2 of the License, or
11 // (at your option) any later version.
13 // This program is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 // GNU General Public License for more details.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the
20 // Free Software Foundation, Inc.,
21 // 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 \brief Poller non-inline template implementation */
26 //#include "Poller.ih"
30 #include <senf/Utils/Exception.hh>
33 ///////////////////////////////ct.p////////////////////////////////////////
35 template <class Value>
36 prefix_ bool senf::scheduler::detail::Poller<Value>::set(int fd, int events, Value * data)
38 struct epoll_event ev = { events, { data } };
39 if (epoll_ctl(epollFd_, EPOLL_CTL_ADD, fd, &ev) != -1)
42 if (epoll_ctl(epollFd_, EPOLL_CTL_MOD, fd, &ev) != -1)
46 SENF_THROW_SYSTEM_EXCEPTION("epolll_ctl()");
49 template <class Value>
50 prefix_ void senf::scheduler::detail::Poller<Value>::remove(int fd)
52 if (epoll_ctl(epollFd_, EPOLL_CTL_DEL, fd, 0) == -1)
53 if (errno != ENOENT && errno != EBADF && errno != EPERM)
54 // Calling remove() on a file descriptor which is not registered
55 // is no error, it shall be ignored:
56 // ENOENT: Not part of the poller but a valid (open) fd
57 // EBADF: The fd has been closed already. The kernel automatically removes such fds
58 // from epoll structures
59 // EPERM: The fd does not support epoll and thus can never have been added
60 SENF_THROW_SYSTEM_EXCEPTION("epoll_ctl()");
63 template <class Value>
64 prefix_ typename senf::scheduler::detail::Poller<Value>::range senf::scheduler::detail::Poller<Value>::wait()
66 static epoll_event events[NumEvents];
69 rv = epoll_wait(epollFd_, events, NumEvents, timeout_);
73 SENF_THROW_SYSTEM_EXCEPTION("epoll_wait()");
77 return boost::make_iterator_range(
78 boost::make_transform_iterator(events, GetPollResult()),
79 boost::make_transform_iterator(events+rv, GetPollResult()) );
82 ///////////////////////////////ct.e////////////////////////////////////////
90 // c-file-style: "senf"
91 // indent-tabs-mode: nil
92 // ispell-local-dictionary: "american"
93 // compile-command: "scons -u test"