diff options
Diffstat (limited to 'src/epoll.cpp')
-rw-r--r-- | src/epoll.cpp | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/src/epoll.cpp b/src/epoll.cpp deleted file mode 100644 index 492e06c..0000000 --- a/src/epoll.cpp +++ /dev/null @@ -1,181 +0,0 @@ -/* - Copyright (c) 2007-2013 Contributors as noted in the AUTHORS file - - This file is part of 0MQ. - - 0MQ is free software; you can redistribute it and/or modify it under - the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - 0MQ is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with this program. If not, see <http://www.gnu.org/licenses/>. -*/ - -#include "epoll.hpp" -#if defined ZMQ_USE_EPOLL - -#include <sys/epoll.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <algorithm> -#include <new> - -#include "epoll.hpp" -#include "err.hpp" -#include "config.hpp" -#include "i_poll_events.hpp" - -zmq::epoll_t::epoll_t () : - stopping (false) -{ - epoll_fd = epoll_create (1); - errno_assert (epoll_fd != -1); -} - -zmq::epoll_t::~epoll_t () -{ - // Wait till the worker thread exits. - worker.stop (); - - close (epoll_fd); - for (retired_t::iterator it = retired.begin (); it != retired.end (); ++it) - delete *it; -} - -zmq::epoll_t::handle_t zmq::epoll_t::add_fd (fd_t fd_, i_poll_events *events_) -{ - poll_entry_t *pe = new (std::nothrow) poll_entry_t; - alloc_assert (pe); - - // The memset is not actually needed. It's here to prevent debugging - // tools to complain about using uninitialised memory. - memset (pe, 0, sizeof (poll_entry_t)); - - pe->fd = fd_; - pe->ev.events = 0; - pe->ev.data.ptr = pe; - pe->events = events_; - - int rc = epoll_ctl (epoll_fd, EPOLL_CTL_ADD, fd_, &pe->ev); - errno_assert (rc != -1); - - // Increase the load metric of the thread. - adjust_load (1); - - return pe; -} - -void zmq::epoll_t::rm_fd (handle_t handle_) -{ - poll_entry_t *pe = (poll_entry_t*) handle_; - int rc = epoll_ctl (epoll_fd, EPOLL_CTL_DEL, pe->fd, &pe->ev); - errno_assert (rc != -1); - pe->fd = retired_fd; - retired.push_back (pe); - - // Decrease the load metric of the thread. - adjust_load (-1); -} - -void zmq::epoll_t::set_pollin (handle_t handle_) -{ - poll_entry_t *pe = (poll_entry_t*) handle_; - pe->ev.events |= EPOLLIN; - int rc = epoll_ctl (epoll_fd, EPOLL_CTL_MOD, pe->fd, &pe->ev); - errno_assert (rc != -1); -} - -void zmq::epoll_t::reset_pollin (handle_t handle_) -{ - poll_entry_t *pe = (poll_entry_t*) handle_; - pe->ev.events &= ~((short) EPOLLIN); - int rc = epoll_ctl (epoll_fd, EPOLL_CTL_MOD, pe->fd, &pe->ev); - errno_assert (rc != -1); -} - -void zmq::epoll_t::set_pollout (handle_t handle_) -{ - poll_entry_t *pe = (poll_entry_t*) handle_; - pe->ev.events |= EPOLLOUT; - int rc = epoll_ctl (epoll_fd, EPOLL_CTL_MOD, pe->fd, &pe->ev); - errno_assert (rc != -1); -} - -void zmq::epoll_t::reset_pollout (handle_t handle_) -{ - poll_entry_t *pe = (poll_entry_t*) handle_; - pe->ev.events &= ~((short) EPOLLOUT); - int rc = epoll_ctl (epoll_fd, EPOLL_CTL_MOD, pe->fd, &pe->ev); - errno_assert (rc != -1); -} - -void zmq::epoll_t::start () -{ - worker.start (worker_routine, this); -} - -void zmq::epoll_t::stop () -{ - stopping = true; -} - -int zmq::epoll_t::max_fds () -{ - return -1; -} - -void zmq::epoll_t::loop () -{ - epoll_event ev_buf [max_io_events]; - - while (!stopping) { - - // Execute any due timers. - int timeout = (int) execute_timers (); - - // Wait for events. - int n = epoll_wait (epoll_fd, &ev_buf [0], max_io_events, - timeout ? timeout : -1); - if (n == -1) { - errno_assert (errno == EINTR); - continue; - } - - for (int i = 0; i < n; i ++) { - poll_entry_t *pe = ((poll_entry_t*) ev_buf [i].data.ptr); - - if (pe->fd == retired_fd) - continue; - if (ev_buf [i].events & (EPOLLERR | EPOLLHUP)) - pe->events->in_event (); - if (pe->fd == retired_fd) - continue; - if (ev_buf [i].events & EPOLLOUT) - pe->events->out_event (); - if (pe->fd == retired_fd) - continue; - if (ev_buf [i].events & EPOLLIN) - pe->events->in_event (); - } - - // Destroy retired event sources. - for (retired_t::iterator it = retired.begin (); it != retired.end (); - ++it) - delete *it; - retired.clear (); - } -} - -void zmq::epoll_t::worker_routine (void *arg_) -{ - ((epoll_t*) arg_)->loop (); -} - -#endif |