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/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2000 The Apache Software Foundation. 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. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" 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 name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``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 SOFTWARE FOUNDATION 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 Software Foundation. For more
* information on the Apache Software Foundation, 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(struct pollfd_t **new, ap_int32_t num, ap_context_t *cont)
{
(*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(ap_int16_t *event, struct socket_t *sock, struct pollfd_t *aprset)
{
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, char *key, void *data)
{
if (pollfd != NULL) {
return ap_get_userdata(data, key, pollfd->cntxt);
}
else {
data = NULL;
return APR_ENOFILE;
}
}
ap_status_t ap_set_polldata(struct pollfd_t *pollfd, void *data, char *key,
ap_status_t (*cleanup) (void *))
{
if (pollfd != NULL) {
return ap_set_userdata(data, key, cleanup, pollfd->cntxt);
}
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;
}
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