diff options
Diffstat (limited to 'thirdparty/libwebsockets/lib/plat/windows/windows-service.c')
| -rw-r--r-- | thirdparty/libwebsockets/lib/plat/windows/windows-service.c | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/thirdparty/libwebsockets/lib/plat/windows/windows-service.c b/thirdparty/libwebsockets/lib/plat/windows/windows-service.c new file mode 100644 index 0000000000..a6adefbd3b --- /dev/null +++ b/thirdparty/libwebsockets/lib/plat/windows/windows-service.c @@ -0,0 +1,194 @@ +/* + * libwebsockets - small server side websockets and web server implementation + * + * Copyright (C) 2010 - 2018 Andy Green <andy@warmcat.com> + * + * This library 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: + * version 2.1 of the License. + * + * This library 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 library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#ifndef _WINSOCK_DEPRECATED_NO_WARNINGS +#define _WINSOCK_DEPRECATED_NO_WARNINGS +#endif +#include "core/private.h" + + +LWS_EXTERN int +_lws_plat_service_tsi(struct lws_context *context, int timeout_ms, int tsi) +{ + struct lws_context_per_thread *pt; + WSANETWORKEVENTS networkevents; + struct lws_pollfd *pfd; + struct lws *wsi; + unsigned int i; + DWORD ev; + int n; + + /* stay dead once we are dead */ + if (context == NULL || !context->vhost_list) + return 1; + + pt = &context->pt[tsi]; + + if (!pt->service_tid_detected) { + struct lws _lws; + + memset(&_lws, 0, sizeof(_lws)); + _lws.context = context; + + pt->service_tid = context->vhost_list-> + protocols[0].callback(&_lws, LWS_CALLBACK_GET_THREAD_ID, + NULL, NULL, 0); + pt->service_tid_detected = 1; + } + + if (timeout_ms < 0) { + if (lws_service_flag_pending(context, tsi)) { + /* any socket with events to service? */ + for (n = 0; n < (int)pt->fds_count; n++) { + int m; + if (!pt->fds[n].revents) + continue; + + m = lws_service_fd_tsi(context, &pt->fds[n], tsi); + if (m < 0) + return -1; + /* if something closed, retry this slot */ + if (m) + n--; + } + } + return 0; + } + + if (context->event_loop_ops->run_pt) + context->event_loop_ops->run_pt(context, tsi); + + for (i = 0; i < pt->fds_count; ++i) { + pfd = &pt->fds[i]; + + if (!(pfd->events & LWS_POLLOUT)) + continue; + + wsi = wsi_from_fd(context, pfd->fd); + if (!wsi || wsi->listener) + continue; + if (wsi->sock_send_blocking) + continue; + pfd->revents = LWS_POLLOUT; + n = lws_service_fd(context, pfd); + if (n < 0) + return -1; + + /* Force WSAWaitForMultipleEvents() to check events and then return immediately. */ + timeout_ms = 0; + + /* if something closed, retry this slot */ + if (n) + i--; + } + + /* + * is there anybody with pending stuff that needs service forcing? + */ + if (!lws_service_adjust_timeout(context, 1, tsi)) { + /* -1 timeout means just do forced service */ + _lws_plat_service_tsi(context, -1, pt->tid); + /* still somebody left who wants forced service? */ + if (!lws_service_adjust_timeout(context, 1, pt->tid)) + /* yes... come back again quickly */ + timeout_ms = 0; + } + + if (timeout_ms) { + lws_usec_t t; + + lws_pt_lock(pt, __func__); + /* don't stay in poll wait longer than next hr timeout */ + t = __lws_hrtimer_service(pt); + + if ((lws_usec_t)timeout_ms * 1000 > t) + timeout_ms = (int)(t / 1000); + lws_pt_unlock(pt); + } + + ev = WSAWaitForMultipleEvents(1, &pt->events, FALSE, timeout_ms, FALSE); + if (ev == WSA_WAIT_EVENT_0) { + unsigned int eIdx; + + WSAResetEvent(pt->events); + + if (pt->context->tls_ops && + pt->context->tls_ops->fake_POLLIN_for_buffered) + pt->context->tls_ops->fake_POLLIN_for_buffered(pt); + + for (eIdx = 0; eIdx < pt->fds_count; ++eIdx) { + unsigned int err; + + if (WSAEnumNetworkEvents(pt->fds[eIdx].fd, 0, + &networkevents) == SOCKET_ERROR) { + lwsl_err("WSAEnumNetworkEvents() failed " + "with error %d\n", LWS_ERRNO); + return -1; + } + + pfd = &pt->fds[eIdx]; + pfd->revents = (short)networkevents.lNetworkEvents; + + err = networkevents.iErrorCode[FD_CONNECT_BIT]; + + if ((networkevents.lNetworkEvents & FD_CONNECT) && + err && err != LWS_EALREADY && + err != LWS_EINPROGRESS && err != LWS_EWOULDBLOCK && + err != WSAEINVAL) { + lwsl_debug("Unable to connect errno=%d\n", err); + pfd->revents |= LWS_POLLHUP; + } + + if (pfd->revents & LWS_POLLOUT) { + wsi = wsi_from_fd(context, pfd->fd); + if (wsi) + wsi->sock_send_blocking = 0; + } + /* if something closed, retry this slot */ + if (pfd->revents & LWS_POLLHUP) + --eIdx; + + if (pfd->revents) { + recv(pfd->fd, NULL, 0, 0); + lws_service_fd_tsi(context, pfd, tsi); + } + } + } + + if (ev == WSA_WAIT_TIMEOUT) + lws_service_fd(context, NULL); + + return 0; +} + +int +lws_plat_service(struct lws_context *context, int timeout_ms) +{ + return _lws_plat_service_tsi(context, timeout_ms, 0); +} + + + +void +lws_plat_service_periodic(struct lws_context *context) +{ +} + |