diff options
Diffstat (limited to 'debian/vendor-h2o/lib/common/socket/evloop/epoll.c.h')
| -rw-r--r-- | debian/vendor-h2o/lib/common/socket/evloop/epoll.c.h | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/debian/vendor-h2o/lib/common/socket/evloop/epoll.c.h b/debian/vendor-h2o/lib/common/socket/evloop/epoll.c.h deleted file mode 100644 index 247dac8..0000000 --- a/debian/vendor-h2o/lib/common/socket/evloop/epoll.c.h +++ /dev/null @@ -1,203 +0,0 @@ -/* - * Copyright (c) 2014 DeNA Co., Ltd. - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to - * deal in the Software without restriction, including without limitation the - * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or - * sell copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS - * IN THE SOFTWARE. - */ -#include <assert.h> -#include <limits.h> -#include <stdio.h> -#include <sys/epoll.h> - -#if 0 -#define DEBUG_LOG(...) fprintf(stderr, __VA_ARGS__) -#else -#define DEBUG_LOG(...) -#endif - -struct st_h2o_evloop_epoll_t { - h2o_evloop_t super; - int ep; -}; - -static int update_status(struct st_h2o_evloop_epoll_t *loop) -{ - while (loop->super._statechanged.head != NULL) { - /* detach the top */ - struct st_h2o_evloop_socket_t *sock = loop->super._statechanged.head; - loop->super._statechanged.head = sock->_next_statechanged; - sock->_next_statechanged = sock; - /* update the state */ - if ((sock->_flags & H2O_SOCKET_FLAG_IS_DISPOSED) != 0) { - free(sock); - } else { - int changed = 0, op, ret; - struct epoll_event ev; - ev.events = 0; - if (h2o_socket_is_reading(&sock->super)) { - ev.events |= EPOLLIN; - if ((sock->_flags & H2O_SOCKET_FLAG_IS_POLLED_FOR_READ) == 0) { - sock->_flags |= H2O_SOCKET_FLAG_IS_POLLED_FOR_READ; - changed = 1; - } - } else { - if ((sock->_flags & H2O_SOCKET_FLAG_IS_POLLED_FOR_READ) != 0) { - sock->_flags &= ~H2O_SOCKET_FLAG_IS_POLLED_FOR_READ; - changed = 1; - } - } - if (h2o_socket_is_writing(&sock->super)) { - ev.events |= EPOLLOUT; - if ((sock->_flags & H2O_SOCKET_FLAG_IS_POLLED_FOR_WRITE) == 0) { - sock->_flags |= H2O_SOCKET_FLAG_IS_POLLED_FOR_WRITE; - changed = 1; - } - } else { - if ((sock->_flags & H2O_SOCKET_FLAG_IS_POLLED_FOR_WRITE) != 0) { - sock->_flags &= ~H2O_SOCKET_FLAG_IS_POLLED_FOR_WRITE; - changed = 1; - } - } - if (changed) { - if ((sock->_flags & H2O_SOCKET_FLAG__EPOLL_IS_REGISTERED) != 0) { - if (ev.events != 0) - op = EPOLL_CTL_MOD; - else - op = EPOLL_CTL_DEL; - } else { - assert(ev.events != 0); - op = EPOLL_CTL_ADD; - } - ev.data.ptr = sock; - while ((ret = epoll_ctl(loop->ep, op, sock->fd, &ev)) != 0 && errno == EINTR) - ; - if (ret != 0) - return -1; - if (op == EPOLL_CTL_DEL) - sock->_flags &= ~H2O_SOCKET_FLAG__EPOLL_IS_REGISTERED; - else - sock->_flags |= H2O_SOCKET_FLAG__EPOLL_IS_REGISTERED; - } - } - } - loop->super._statechanged.tail_ref = &loop->super._statechanged.head; - - return 0; -} - -int evloop_do_proceed(h2o_evloop_t *_loop, int32_t max_wait) -{ - struct st_h2o_evloop_epoll_t *loop = (struct st_h2o_evloop_epoll_t *)_loop; - struct epoll_event events[256]; - int nevents, i; - - /* collect (and update) status */ - if (update_status(loop) != 0) - return -1; - - /* poll */ - max_wait = adjust_max_wait(&loop->super, max_wait); - nevents = epoll_wait(loop->ep, events, sizeof(events) / sizeof(events[0]), max_wait); - update_now(&loop->super); - if (nevents == -1) - return -1; - - if (nevents != 0) - h2o_sliding_counter_start(&loop->super.exec_time_counter, loop->super._now); - - /* update readable flags, perform writes */ - for (i = 0; i != nevents; ++i) { - struct st_h2o_evloop_socket_t *sock = events[i].data.ptr; - int notified = 0; - if ((events[i].events & (EPOLLIN | EPOLLHUP | EPOLLERR)) != 0) { - if ((sock->_flags & H2O_SOCKET_FLAG_IS_POLLED_FOR_READ) != 0) { - sock->_flags |= H2O_SOCKET_FLAG_IS_READ_READY; - link_to_pending(sock); - notified = 1; - } - } - if ((events[i].events & (EPOLLOUT | EPOLLHUP | EPOLLERR)) != 0) { - if ((sock->_flags & H2O_SOCKET_FLAG_IS_POLLED_FOR_WRITE) != 0) { - write_pending(sock); - notified = 1; - } - } - if (!notified) { - static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; - static time_t last_reported = 0; - time_t now = time(NULL); - pthread_mutex_lock(&lock); - if (last_reported + 60 < now) { - last_reported = now; - fprintf(stderr, "ignoring epoll event (fd:%d,event:%x)\n", sock->fd, (int)events[i].events); - } - pthread_mutex_unlock(&lock); - } - } - - return 0; -} - -static void evloop_do_on_socket_create(struct st_h2o_evloop_socket_t *sock) -{ -} - -static void evloop_do_on_socket_close(struct st_h2o_evloop_socket_t *sock) -{ - struct st_h2o_evloop_epoll_t *loop = (void *)sock->loop; - int ret; - - if (sock->fd == -1) - return; - if ((sock->_flags & H2O_SOCKET_FLAG__EPOLL_IS_REGISTERED) == 0) - return; - while ((ret = epoll_ctl(loop->ep, EPOLL_CTL_DEL, sock->fd, NULL)) != 0 && errno == EINTR) - ; - if (ret != 0) - fprintf(stderr, "socket_close: epoll(DEL) returned error %d (fd=%d)\n", errno, sock->fd); -} - -static void evloop_do_on_socket_export(struct st_h2o_evloop_socket_t *sock) -{ - struct st_h2o_evloop_epoll_t *loop = (void *)sock->loop; - int ret; - - if ((sock->_flags & H2O_SOCKET_FLAG__EPOLL_IS_REGISTERED) == 0) - return; - while ((ret = epoll_ctl(loop->ep, EPOLL_CTL_DEL, sock->fd, NULL)) != 0 && errno == EINTR) - ; - if (ret != 0) - fprintf(stderr, "socket_export: epoll(DEL) returned error %d (fd=%d)\n", errno, sock->fd); -} - -h2o_evloop_t *h2o_evloop_create(void) -{ - struct st_h2o_evloop_epoll_t *loop = (struct st_h2o_evloop_epoll_t *)create_evloop(sizeof(*loop)); - - pthread_mutex_lock(&cloexec_mutex); - loop->ep = epoll_create(10); - while (fcntl(loop->ep, F_SETFD, FD_CLOEXEC) == -1) { - if (errno != EAGAIN) { - fprintf(stderr, "h2o_evloop_create: failed to set FD_CLOEXEC to the epoll fd (errno=%d)\n", errno); - abort(); - } - } - pthread_mutex_unlock(&cloexec_mutex); - - return &loop->super; -} |