X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fsrc%2Fmsg%2Fasync%2FEventEpoll.cc;fp=src%2Fceph%2Fsrc%2Fmsg%2Fasync%2FEventEpoll.cc;h=0000000000000000000000000000000000000000;hb=7da45d65be36d36b880cc55c5036e96c24b53f00;hp=17f3a294659c00c056d7bdb124b568c7f574cb51;hpb=691462d09d0987b47e112d6ee8740375df3c51b2;p=stor4nfv.git diff --git a/src/ceph/src/msg/async/EventEpoll.cc b/src/ceph/src/msg/async/EventEpoll.cc deleted file mode 100644 index 17f3a29..0000000 --- a/src/ceph/src/msg/async/EventEpoll.cc +++ /dev/null @@ -1,133 +0,0 @@ -// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- -// vim: ts=8 sw=2 smarttab -/* - * Ceph - scalable distributed file system - * - * Copyright (C) 2014 UnitedStack - * - * Author: Haomai Wang - * - * This is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License version 2.1, as published by the Free Software - * Foundation. See file COPYING. - * - */ - -#include "common/errno.h" -#include "EventEpoll.h" - -#define dout_subsys ceph_subsys_ms - -#undef dout_prefix -#define dout_prefix *_dout << "EpollDriver." - -int EpollDriver::init(EventCenter *c, int nevent) -{ - events = (struct epoll_event*)malloc(sizeof(struct epoll_event)*nevent); - if (!events) { - lderr(cct) << __func__ << " unable to malloc memory. " << dendl; - return -ENOMEM; - } - memset(events, 0, sizeof(struct epoll_event)*nevent); - - epfd = epoll_create(1024); /* 1024 is just an hint for the kernel */ - if (epfd == -1) { - lderr(cct) << __func__ << " unable to do epoll_create: " - << cpp_strerror(errno) << dendl; - return -errno; - } - - size = nevent; - - return 0; -} - -int EpollDriver::add_event(int fd, int cur_mask, int add_mask) -{ - ldout(cct, 20) << __func__ << " add event fd=" << fd << " cur_mask=" << cur_mask - << " add_mask=" << add_mask << " to " << epfd << dendl; - struct epoll_event ee; - /* If the fd was already monitored for some event, we need a MOD - * operation. Otherwise we need an ADD operation. */ - int op; - op = cur_mask == EVENT_NONE ? EPOLL_CTL_ADD: EPOLL_CTL_MOD; - - ee.events = EPOLLET; - add_mask |= cur_mask; /* Merge old events */ - if (add_mask & EVENT_READABLE) - ee.events |= EPOLLIN; - if (add_mask & EVENT_WRITABLE) - ee.events |= EPOLLOUT; - ee.data.u64 = 0; /* avoid valgrind warning */ - ee.data.fd = fd; - if (epoll_ctl(epfd, op, fd, &ee) == -1) { - lderr(cct) << __func__ << " epoll_ctl: add fd=" << fd << " failed. " - << cpp_strerror(errno) << dendl; - return -errno; - } - - return 0; -} - -int EpollDriver::del_event(int fd, int cur_mask, int delmask) -{ - ldout(cct, 20) << __func__ << " del event fd=" << fd << " cur_mask=" << cur_mask - << " delmask=" << delmask << " to " << epfd << dendl; - struct epoll_event ee; - int mask = cur_mask & (~delmask); - int r = 0; - - ee.events = 0; - if (mask & EVENT_READABLE) ee.events |= EPOLLIN; - if (mask & EVENT_WRITABLE) ee.events |= EPOLLOUT; - ee.data.u64 = 0; /* avoid valgrind warning */ - ee.data.fd = fd; - if (mask != EVENT_NONE) { - if ((r = epoll_ctl(epfd, EPOLL_CTL_MOD, fd, &ee)) < 0) { - lderr(cct) << __func__ << " epoll_ctl: modify fd=" << fd << " mask=" << mask - << " failed." << cpp_strerror(errno) << dendl; - return -errno; - } - } else { - /* Note, Kernel < 2.6.9 requires a non null event pointer even for - * EPOLL_CTL_DEL. */ - if ((r = epoll_ctl(epfd, EPOLL_CTL_DEL, fd, &ee)) < 0) { - lderr(cct) << __func__ << " epoll_ctl: delete fd=" << fd - << " failed." << cpp_strerror(errno) << dendl; - return -errno; - } - } - return 0; -} - -int EpollDriver::resize_events(int newsize) -{ - return 0; -} - -int EpollDriver::event_wait(vector &fired_events, struct timeval *tvp) -{ - int retval, numevents = 0; - - retval = epoll_wait(epfd, events, size, - tvp ? (tvp->tv_sec*1000 + tvp->tv_usec/1000) : -1); - if (retval > 0) { - int j; - - numevents = retval; - fired_events.resize(numevents); - for (j = 0; j < numevents; j++) { - int mask = 0; - struct epoll_event *e = events + j; - - if (e->events & EPOLLIN) mask |= EVENT_READABLE; - if (e->events & EPOLLOUT) mask |= EVENT_WRITABLE; - if (e->events & EPOLLERR) mask |= EVENT_READABLE|EVENT_WRITABLE; - if (e->events & EPOLLHUP) mask |= EVENT_READABLE|EVENT_WRITABLE; - fired_events[j].fd = e->data.fd; - fired_events[j].mask = mask; - } - } - return numevents; -}