| /* ==================================================================== |
| * Copyright (c) 1999 The Apache Group. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. All advertising materials mentioning features or use of this |
| * software must display the following acknowledgment: |
| * "This product includes software developed by the Apache Group |
| * for use in the Apache HTTP server project (http://www.apache.org/)." |
| * |
| * 4. The names "Apache Server" and "Apache Group" must not be used to |
| * endorse or promote products derived from this software without |
| * prior written permission. For written permission, please contact |
| * apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache" |
| * nor may "Apache" appear in their names without prior written |
| * permission of the Apache Group. |
| * |
| * 6. Redistributions of any form whatsoever must retain the following |
| * acknowledgment: |
| * "This product includes software developed by the Apache Group |
| * for use in the Apache HTTP server project (http://www.apache.org/)." |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY |
| * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE GROUP OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| * OF THE POSSIBILITY OF SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Group. |
| * For more information on the Apache Group and the Apache HTTP server |
| * project, please see <http://www.apache.org/>. |
| * |
| */ |
| |
| #include "networkio.h" |
| #include "apr_network_io.h" |
| #include "apr_general.h" |
| #include "apr_lib.h" |
| #include <errno.h> |
| #include <windows.h> |
| #include <time.h> |
| |
| |
| ap_status_t ap_setup_poll(ap_context_t *cont, ap_int32_t num, struct pollfd_t **new) |
| { |
| (*new) = (struct pollfd_t *)ap_palloc(cont, sizeof(struct pollfd_t) * num); |
| if ((*new) == NULL) { |
| return APR_ENOMEM; |
| } |
| (*new)->cntxt = cont; |
| (*new)->read = (fd_set *)ap_palloc(cont, sizeof(fd_set)); |
| (*new)->write = (fd_set *)ap_palloc(cont, sizeof(fd_set)); |
| (*new)->except = (fd_set *)ap_palloc(cont, sizeof(fd_set)); |
| FD_ZERO((*new)->read); |
| (*new)->numread = 0; |
| FD_ZERO((*new)->write); |
| (*new)->numwrite = 0; |
| FD_ZERO((*new)->except); |
| (*new)->numexcept = 0; |
| return APR_SUCCESS; |
| } |
| |
| ap_status_t ap_add_poll_socket(struct pollfd_t *aprset, |
| struct socket_t *sock, ap_int16_t event) |
| { |
| if (event & APR_POLLIN) { |
| FD_SET(sock->sock, aprset->read); |
| aprset->numread++; |
| } |
| if (event & APR_POLLPRI) { |
| FD_SET(sock->sock, aprset->read); |
| aprset->numexcept++; |
| } |
| if (event & APR_POLLOUT) { |
| FD_SET(sock->sock, aprset->write); |
| aprset->numwrite++; |
| } |
| return APR_SUCCESS; |
| } |
| |
| ap_status_t ap_poll(struct pollfd_t *aprset, ap_int32_t *nsds, ap_int32_t timeout) |
| { |
| int rv; |
| struct timeval *thetime; |
| fd_set *newread = NULL; |
| fd_set *newwrite = NULL; |
| fd_set *newexcept = NULL; |
| |
| if (timeout == -1) { |
| thetime = NULL; |
| } |
| else { |
| /* Convert milli-seconds into seconds and micro-seconds. */ |
| thetime = (struct timeval *)ap_palloc(aprset->cntxt, sizeof(struct timeval)); |
| thetime->tv_sec = timeout; |
| thetime->tv_usec = 0; |
| } |
| |
| if (aprset->numread != 0) { |
| newread = aprset->read; |
| } |
| if (aprset->numwrite != 0) { |
| newwrite = aprset->write; |
| } |
| if (aprset->numexcept != 0) { |
| newexcept = aprset->except; |
| } |
| |
| if (newread == NULL && newwrite == NULL && newexcept == NULL) { |
| Sleep(100); /* Should sleep for timeout, but that will be fixed next */ |
| return APR_TIMEUP; |
| } |
| else { |
| rv = select(500, newread, newwrite, newexcept, thetime); |
| } |
| |
| (*nsds) = rv; |
| if ((*nsds) < 0) { |
| rv = GetLastError(); |
| return APR_EEXIST; |
| } |
| return APR_SUCCESS; |
| } |
| |
| ap_status_t ap_get_revents(struct pollfd_t *aprset, struct socket_t *sock, ap_int16_t *event) |
| { |
| ap_int16_t revents = 0; |
| WSABUF data; |
| int dummy; |
| int flags = MSG_PEEK; |
| |
| /* We just want to PEEK at the data, so I am setting up a dummy WSABUF |
| * variable here. |
| */ |
| data.len = 256; |
| data.buf = (char *)ap_palloc(aprset->cntxt, 256); |
| |
| if (FD_ISSET(sock->sock, aprset->read)) { |
| revents |= APR_POLLIN; |
| if (WSARecv(sock->sock, &data, 1, &dummy, &flags, NULL, |
| NULL) == SOCKET_ERROR) { |
| dummy = WSAGetLastError(); |
| switch (dummy) { |
| case WSAECONNRESET: |
| case WSAECONNABORTED: |
| case WSAESHUTDOWN: |
| case WSAENETRESET: { |
| revents ^= APR_POLLIN; |
| revents |= APR_POLLHUP; |
| break; |
| } |
| case WSAENOTSOCK: { |
| revents ^= APR_POLLIN; |
| revents |= APR_POLLNVAL; |
| } |
| default: { |
| revents ^= APR_POLLIN; |
| revents |= APR_POLLERR; |
| } |
| } |
| } |
| } |
| if (FD_ISSET(sock->sock, aprset->write)) { |
| revents |= APR_POLLOUT; |
| } |
| /* I am assuming that the except is for out of band data, not a failed |
| * connection on a non-blocking socket. Might be a bad assumption, but |
| * it works for now. rbb. |
| */ |
| if (FD_ISSET(sock->sock, aprset->except)) { |
| revents |= APR_POLLPRI; |
| } |
| |
| (*event) = revents; |
| return APR_SUCCESS; |
| } |
| |
| ap_status_t ap_get_polldata(struct pollfd_t *pollfd, void *data) |
| { |
| if (pollfd != NULL) { |
| return ap_get_userdata(pollfd->cntxt, &data); |
| } |
| else { |
| data = NULL; |
| return APR_ENOFILE; |
| } |
| } |
| |
| ap_status_t ap_set_polldata(struct pollfd_t *pollfd, void *data) |
| { |
| if (pollfd != NULL) { |
| return ap_set_userdata(pollfd->cntxt, data); |
| } |
| else { |
| data = NULL; |
| return APR_ENOFILE; |
| } |
| } |
| |
| ap_status_t ap_remove_poll_socket(struct pollfd_t *aprset, |
| struct socket_t *sock, ap_int16_t events) |
| { |
| if (events & APR_POLLIN) { |
| FD_CLR(sock->sock, aprset->read); |
| aprset->numread--; |
| } |
| if (events & APR_POLLPRI) { |
| FD_CLR(sock->sock, aprset->read); |
| aprset->numexcept--; |
| } |
| if (events & APR_POLLOUT) { |
| FD_CLR(sock->sock, aprset->write); |
| aprset->numwrite--; |
| } |
| return APR_SUCCESS; |
| } |
| |
| ap_status_t ap_clear_poll_sockets(struct pollfd_t *aprset, ap_int16_t events) |
| { |
| if (events & APR_POLLIN) { |
| FD_ZERO(aprset->read); |
| aprset->numread = 0; |
| } |
| if (events & APR_POLLPRI) { |
| FD_ZERO(aprset->read); |
| aprset->numexcept = 0; |
| } |
| if (events & APR_POLLOUT) { |
| FD_ZERO(aprset->write); |
| aprset->numwrite = 0; |
| } |
| return APR_SUCCESS; |
| } |
