コード例 #1
0
ファイル: child.c プロジェクト: Distrotech/httpd
static PCOMP_CONTEXT win9x_get_connection(PCOMP_CONTEXT context)
{
    apr_os_sock_info_t sockinfo;
    int len, salen;
#if APR_HAVE_IPV6
    salen = sizeof(struct sockaddr_in6);
#else
    salen = sizeof(struct sockaddr_in);
#endif


    if (context == NULL) {
        /* allocate the completion context and the transaction pool */
        apr_allocator_t *allocator;
        apr_thread_mutex_lock(child_lock);
        context = apr_pcalloc(pchild, sizeof(COMP_CONTEXT));
        apr_allocator_create(&allocator);
        apr_allocator_max_free_set(allocator, ap_max_mem_free);
        apr_pool_create_ex(&context->ptrans, pchild, NULL, allocator);
        apr_allocator_owner_set(allocator, context->ptrans);
        apr_pool_tag(context->ptrans, "transaction");
        apr_thread_mutex_unlock(child_lock);
    }

    while (1) {
        apr_pool_clear(context->ptrans);
        context->ba = apr_bucket_alloc_create(context->ptrans);
        context->accept_socket = remove_job();
        if (context->accept_socket == INVALID_SOCKET) {
            return NULL;
        }
        len = salen;
        context->sa_server = apr_palloc(context->ptrans, len);
        if (getsockname(context->accept_socket,
                        context->sa_server, &len)== SOCKET_ERROR) {
            ap_log_error(APLOG_MARK, APLOG_WARNING, apr_get_netos_error(), ap_server_conf,
                         "getsockname failed");
            continue;
        }
        len = salen;
        context->sa_client = apr_palloc(context->ptrans, len);
        if ((getpeername(context->accept_socket,
                         context->sa_client, &len)) == SOCKET_ERROR) {
            ap_log_error(APLOG_MARK, APLOG_WARNING, apr_get_netos_error(), ap_server_conf,
                         "getpeername failed");
            memset(&context->sa_client, '\0', sizeof(context->sa_client));
        }
        sockinfo.os_sock = &context->accept_socket;
        sockinfo.local   = context->sa_server;
        sockinfo.remote  = context->sa_client;
        sockinfo.family  = context->sa_server->sa_family;
        sockinfo.type    = SOCK_STREAM;
        apr_os_sock_make(&context->sock, &sockinfo, context->ptrans);

        return context;
    }
}
コード例 #2
0
ファイル: child.c プロジェクト: Distrotech/httpd
static unsigned int __stdcall winnt_accept(void *lr_)
{
    ap_listen_rec *lr = (ap_listen_rec *)lr_;
    apr_os_sock_info_t sockinfo;
    PCOMP_CONTEXT context = NULL;
    DWORD BytesRead;
    SOCKET nlsd;
    int rv, err_count = 0;
#if APR_HAVE_IPV6
    SOCKADDR_STORAGE ss_listen;
    int namelen = sizeof(ss_listen);
#endif

    apr_os_sock_get(&nlsd, lr->sd);

#if APR_HAVE_IPV6
    if (getsockname(nlsd, (struct sockaddr *)&ss_listen, &namelen) == SOCKET_ERROR) {
        ap_log_error(APLOG_MARK,APLOG_ERR, apr_get_netos_error(), ap_server_conf,
                    "winnt_accept: getsockname error on listening socket, is IPv6 available?");
        return 1;
   }
#endif

    ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, ap_server_conf,
                 "Child %lu: Starting thread to listen on port %d.", my_pid, lr->bind_addr->port);
    while (!shutdown_in_progress) {
        if (!context) {
            context = mpm_get_completion_context();
            if (!context) {
                /* Temporary resource constraint? */
                Sleep(0);
                continue;
            }
        }

        /* Create and initialize the accept socket */
#if APR_HAVE_IPV6
        if (context->accept_socket == INVALID_SOCKET) {
            context->accept_socket = socket(ss_listen.ss_family, SOCK_STREAM, IPPROTO_TCP);
            context->socket_family = ss_listen.ss_family;
        }
        else if (context->socket_family != ss_listen.ss_family) {
            closesocket(context->accept_socket);
            context->accept_socket = socket(ss_listen.ss_family, SOCK_STREAM, IPPROTO_TCP);
            context->socket_family = ss_listen.ss_family;
        }

        if (context->accept_socket == INVALID_SOCKET) {
            ap_log_error(APLOG_MARK,APLOG_WARNING, apr_get_netos_error(), ap_server_conf,
                         "winnt_accept: Failed to allocate an accept socket. "
                         "Temporary resource constraint? Try again.");
            Sleep(100);
            continue;
        }
#else
        if (context->accept_socket == INVALID_SOCKET) {
            context->accept_socket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
            if (context->accept_socket == INVALID_SOCKET) {
                /* Another temporary condition? */
                ap_log_error(APLOG_MARK,APLOG_WARNING, apr_get_netos_error(), ap_server_conf,
                             "winnt_accept: Failed to allocate an accept socket. "
                             "Temporary resource constraint? Try again.");
                Sleep(100);
                continue;
            }
        }
#endif
        /* AcceptEx on the completion context. The completion context will be
         * signaled when a connection is accepted.
         */
        if (!AcceptEx(nlsd, context->accept_socket,
                      context->buff,
                      0,
                      PADDED_ADDR_SIZE,
                      PADDED_ADDR_SIZE,
                      &BytesRead,
                      &context->Overlapped)) {
            rv = apr_get_netos_error();
            if ((rv == APR_FROM_OS_ERROR(WSAEINVAL)) ||
                (rv == APR_FROM_OS_ERROR(WSAENOTSOCK))) {
                /* We can get here when:
                 * 1) the client disconnects early
                 * 2) TransmitFile does not properly recycle the accept socket (typically
                 *    because the client disconnected)
                 * 3) there is VPN or Firewall software installed with buggy AcceptEx implementation
                 * 4) the webserver is using a dynamic address that has changed
                 */
                ++err_count;
                closesocket(context->accept_socket);
                context->accept_socket = INVALID_SOCKET;
                if (err_count > MAX_ACCEPTEX_ERR_COUNT) {
                    ap_log_error(APLOG_MARK, APLOG_ERR, rv, ap_server_conf,
                                 "Child %lu: Encountered too many errors accepting client connections. "
                                 "Possible causes: dynamic address renewal, or incompatible VPN or firewall software. "
                                 "Try using the Win32DisableAcceptEx directive.", my_pid);
                    err_count = 0;
                }
                continue;
            }
            else if ((rv != APR_FROM_OS_ERROR(ERROR_IO_PENDING)) &&
                     (rv != APR_FROM_OS_ERROR(WSA_IO_PENDING))) {
                ++err_count;
                if (err_count > MAX_ACCEPTEX_ERR_COUNT) {
                    ap_log_error(APLOG_MARK,APLOG_ERR, rv, ap_server_conf,
                                 "Child %lu: Encountered too many errors accepting client connections. "
                                 "Possible causes: Unknown. "
                                 "Try using the Win32DisableAcceptEx directive.", my_pid);
                    err_count = 0;
                }
                closesocket(context->accept_socket);
                context->accept_socket = INVALID_SOCKET;
                continue;
            }
            err_count = 0;

            /* Wait for pending i/o.
             * Wake up once per second to check for shutdown .
             * XXX: We should be waiting on exit_event instead of polling
             */
            while (1) {
                rv = WaitForSingleObject(context->Overlapped.hEvent, 1000);
                if (rv == WAIT_OBJECT_0) {
                    if (context->accept_socket == INVALID_SOCKET) {
                        /* socket already closed */
                        break;
                    }
                    if (!GetOverlappedResult((HANDLE)context->accept_socket,
                                             &context->Overlapped,
                                             &BytesRead, FALSE)) {
                        ap_log_error(APLOG_MARK, APLOG_WARNING,
                                     apr_get_os_error(), ap_server_conf,
                             "winnt_accept: Asynchronous AcceptEx failed.");
                        closesocket(context->accept_socket);
                        context->accept_socket = INVALID_SOCKET;
                    }
                    break;
                }
                /* WAIT_TIMEOUT */
                if (shutdown_in_progress) {
                    closesocket(context->accept_socket);
                    context->accept_socket = INVALID_SOCKET;
                    break;
                }
            }
            if (context->accept_socket == INVALID_SOCKET) {
                continue;
            }
        }
        err_count = 0;
        /* Inherit the listen socket settings. Required for
         * shutdown() to work
         */
        if (setsockopt(context->accept_socket, SOL_SOCKET,
                       SO_UPDATE_ACCEPT_CONTEXT, (char *)&nlsd,
                       sizeof(nlsd))) {
            ap_log_error(APLOG_MARK, APLOG_WARNING, apr_get_netos_error(), ap_server_conf,
                         "setsockopt(SO_UPDATE_ACCEPT_CONTEXT) failed.");
            /* Not a failure condition. Keep running. */
        }

        /* Get the local & remote address */
        GetAcceptExSockaddrs(context->buff,
                             0,
                             PADDED_ADDR_SIZE,
                             PADDED_ADDR_SIZE,
                             &context->sa_server,
                             &context->sa_server_len,
                             &context->sa_client,
                             &context->sa_client_len);

        sockinfo.os_sock = &context->accept_socket;
        sockinfo.local   = context->sa_server;
        sockinfo.remote  = context->sa_client;
        sockinfo.family  = context->sa_server->sa_family;
        sockinfo.type    = SOCK_STREAM;
        apr_os_sock_make(&context->sock, &sockinfo, context->ptrans);

        /* When a connection is received, send an io completion notification to
         * the ThreadDispatchIOCP. This function could be replaced by
         * mpm_post_completion_context(), but why do an extra function call...
         */
        PostQueuedCompletionStatus(ThreadDispatchIOCP, 0, IOCP_CONNECTION_ACCEPTED,
                                   &context->Overlapped);
        context = NULL;
    }
    if (!shutdown_in_progress) {
        /* Yow, hit an irrecoverable error! Tell the child to die. */
        SetEvent(exit_event);
    }
    ap_log_error(APLOG_MARK, APLOG_INFO, APR_SUCCESS, ap_server_conf,
                 "Child %lu: Accept thread exiting.", my_pid);
    return 0;
}
コード例 #3
0
ファイル: child.c プロジェクト: Ga-vin/apache
static unsigned int __stdcall winnt_accept(void *lr_)
{
    ap_listen_rec *lr = (ap_listen_rec *)lr_;
    apr_os_sock_info_t sockinfo;
    winnt_conn_ctx_t *context = NULL;
    DWORD BytesRead;
    SOCKET nlsd;
    core_server_config *core_sconf;
    const char *accf_name;
    int rv;
    int accf;
    int err_count = 0;
    HANDLE events[3];
#if APR_HAVE_IPV6
    SOCKADDR_STORAGE ss_listen;
    int namelen = sizeof(ss_listen);
#endif
    u_long zero = 0;

    core_sconf = ap_get_core_module_config(ap_server_conf->module_config);
    accf_name = apr_table_get(core_sconf->accf_map, lr->protocol);

    if (strcmp(accf_name, "data") == 0)
        accf = 2;
    else if (strcmp(accf_name, "connect") == 0)
        accf = 1;
    else if (strcmp(accf_name, "none") == 0)
        accf = 0;
    else {
        accf = 0;
        accf_name = "none";
        ap_log_error(APLOG_MARK, APLOG_WARNING, 0, ap_server_conf, APLOGNO(00331)
                     "winnt_accept: unrecognized AcceptFilter '%s', "
                     "only 'data', 'connect' or 'none' are valid. "
                     "Using 'none' instead", accf_name);
    }

    apr_os_sock_get(&nlsd, lr->sd);

#if APR_HAVE_IPV6
    if (getsockname(nlsd, (struct sockaddr *)&ss_listen, &namelen) == SOCKET_ERROR) {
        ap_log_error(APLOG_MARK, APLOG_ERR, apr_get_netos_error(),
                     ap_server_conf, APLOGNO(00332)
                     "winnt_accept: getsockname error on listening socket, "
                     "is IPv6 available?");
        return 1;
   }
#endif

    if (accf > 0) /* 'data' or 'connect' */
    {
        /* first, high priority event is an already accepted connection */
        events[1] = exit_event;
        events[2] = max_requests_per_child_event;
    }
    else /* accf == 0, 'none' */
    {
reinit: /* target of data or connect upon too many AcceptEx failures */

        /* last, low priority event is a not yet accepted connection */
        events[0] = exit_event;
        events[1] = max_requests_per_child_event;
        events[2] = CreateEvent(NULL, FALSE, FALSE, NULL);

        /* The event needs to be removed from the accepted socket,
         * if not removed from the listen socket prior to accept(),
         */
        rv = WSAEventSelect(nlsd, events[2], FD_ACCEPT);
        if (rv) {
            ap_log_error(APLOG_MARK, APLOG_ERR,
                         apr_get_netos_error(), ap_server_conf, APLOGNO(00333)
                         "WSAEventSelect() failed.");
            CloseHandle(events[2]);
            return 1;
        }
    }

    ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, ap_server_conf, APLOGNO(00334)
                 "Child: Accept thread listening on %pI using AcceptFilter %s",
                 lr->bind_addr, accf_name);

    while (!shutdown_in_progress) {
        if (!context) {
            int timeout;

            context = mpm_get_completion_context(&timeout);
            if (!context) {
                if (!timeout) {
                    /* Hopefully a temporary condition in the provider? */
                    ++err_count;
                    if (err_count > MAX_ACCEPTEX_ERR_COUNT) {
                        ap_log_error(APLOG_MARK, APLOG_CRIT, 0, ap_server_conf, APLOGNO(00335)
                                     "winnt_accept: Too many failures grabbing a "
                                     "connection ctx.  Aborting.");
                        break;
                    }
                }
                Sleep(100);
                continue;
            }
        }

        if (accf > 0) /* Either 'connect' or 'data' */
        {
            DWORD len;
            char *buf;

            /* Create and initialize the accept socket */
#if APR_HAVE_IPV6
            if (context->accept_socket == INVALID_SOCKET) {
                context->accept_socket = socket(ss_listen.ss_family, SOCK_STREAM,
                                                IPPROTO_TCP);
                context->socket_family = ss_listen.ss_family;
            }
            else if (context->socket_family != ss_listen.ss_family) {
                closesocket(context->accept_socket);
                context->accept_socket = socket(ss_listen.ss_family, SOCK_STREAM,
                                                IPPROTO_TCP);
                context->socket_family = ss_listen.ss_family;
            }
#else
            if (context->accept_socket == INVALID_SOCKET)
                context->accept_socket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
#endif

            if (context->accept_socket == INVALID_SOCKET) {
                ap_log_error(APLOG_MARK, APLOG_WARNING, apr_get_netos_error(),
                             ap_server_conf, APLOGNO(00336)
                             "winnt_accept: Failed to allocate an accept socket. "
                             "Temporary resource constraint? Try again.");
                Sleep(100);
                continue;
            }

            if (accf == 2) { /* 'data' */
                len = APR_BUCKET_BUFF_SIZE;
                buf = apr_bucket_alloc(len, context->ba);
                len -= PADDED_ADDR_SIZE * 2;
            }
            else /* (accf == 1) 'connect' */ {
                len = 0;
                buf = context->buff;
            }

            /* AcceptEx on the completion context. The completion context will be
             * signaled when a connection is accepted.
             */
            if (!AcceptEx(nlsd, context->accept_socket, buf, len,
                          PADDED_ADDR_SIZE, PADDED_ADDR_SIZE, &BytesRead,
                          &context->overlapped)) {
                rv = apr_get_netos_error();
                if ((rv == APR_FROM_OS_ERROR(WSAECONNRESET)) ||
                    (rv == APR_FROM_OS_ERROR(WSAEACCES))) {
                    /* We can get here when:
                     * 1) the client disconnects early
                     * 2) handshake was incomplete
                     */
                    if (accf == 2)
                        apr_bucket_free(buf);
                    closesocket(context->accept_socket);
                    context->accept_socket = INVALID_SOCKET;
                    continue;
                }
                else if ((rv == APR_FROM_OS_ERROR(WSAEINVAL)) ||
                         (rv == APR_FROM_OS_ERROR(WSAENOTSOCK))) {
                    /* We can get here when:
                     * 1) TransmitFile does not properly recycle the accept socket (typically
                     *    because the client disconnected)
                     * 2) there is VPN or Firewall software installed with
                     *    buggy WSAAccept or WSADuplicateSocket implementation
                     * 3) the dynamic address / adapter has changed
                     * Give five chances, then fall back on AcceptFilter 'none'
                     */
                    if (accf == 2)
                        apr_bucket_free(buf);
                    closesocket(context->accept_socket);
                    context->accept_socket = INVALID_SOCKET;
                    ++err_count;
                    if (err_count > MAX_ACCEPTEX_ERR_COUNT) {
                        ap_log_error(APLOG_MARK, APLOG_ERR, rv, ap_server_conf, APLOGNO(00337)
                                     "Child: Encountered too many AcceptEx "
                                     "faults accepting client connections. "
                                     "Possible causes: dynamic address renewal, "
                                     "or incompatible VPN or firewall software. ");
                        ap_log_error(APLOG_MARK, APLOG_NOTICE, rv, ap_server_conf, APLOGNO(00338)
                                     "winnt_mpm: falling back to "
                                     "'AcceptFilter none'.");
                        err_count = 0;
                        accf = 0;
                    }
                    continue;
                }
                else if ((rv != APR_FROM_OS_ERROR(ERROR_IO_PENDING)) &&
                         (rv != APR_FROM_OS_ERROR(WSA_IO_PENDING))) {
                    if (accf == 2)
                        apr_bucket_free(buf);
                    closesocket(context->accept_socket);
                    context->accept_socket = INVALID_SOCKET;
                    ++err_count;
                    if (err_count > MAX_ACCEPTEX_ERR_COUNT) {
                        ap_log_error(APLOG_MARK, APLOG_ERR, rv, ap_server_conf, APLOGNO(00339)
                                     "Child: Encountered too many AcceptEx "
                                     "faults accepting client connections.");
                        ap_log_error(APLOG_MARK, APLOG_NOTICE, rv, ap_server_conf, APLOGNO(00340)
                                     "winnt_mpm: falling back to "
                                     "'AcceptFilter none'.");
                        err_count = 0;
                        accf = 0;
                        goto reinit;
                    }
                    continue;
                }

                err_count = 0;
                events[0] = context->overlapped.hEvent;

                do {
                    rv = WaitForMultipleObjectsEx(3, events, FALSE, INFINITE, TRUE);
                } while (rv == WAIT_IO_COMPLETION);

                if (rv == WAIT_OBJECT_0) {
                    if ((context->accept_socket != INVALID_SOCKET) &&
                        !GetOverlappedResult((HANDLE)context->accept_socket,
                                             &context->overlapped,
                                             &BytesRead, FALSE)) {
                        ap_log_error(APLOG_MARK, APLOG_WARNING,
                                     apr_get_os_error(), ap_server_conf, APLOGNO(00341)
                             "winnt_accept: Asynchronous AcceptEx failed.");
                        closesocket(context->accept_socket);
                        context->accept_socket = INVALID_SOCKET;
                    }
                }
                else {
                    /* exit_event triggered or event handle was closed */
                    closesocket(context->accept_socket);
                    context->accept_socket = INVALID_SOCKET;
                    if (accf == 2)
                        apr_bucket_free(buf);
                    break;
                }

                if (context->accept_socket == INVALID_SOCKET) {
                    if (accf == 2)
                        apr_bucket_free(buf);
                    continue;
                }
            }
            err_count = 0;

            /* Potential optimization; consider handing off to the worker */

            /* Inherit the listen socket settings. Required for
             * shutdown() to work
             */
            if (setsockopt(context->accept_socket, SOL_SOCKET,
                           SO_UPDATE_ACCEPT_CONTEXT, (char *)&nlsd,
                           sizeof(nlsd))) {
                ap_log_error(APLOG_MARK, APLOG_WARNING, apr_get_netos_error(),
                             ap_server_conf, APLOGNO(00342)
                             "setsockopt(SO_UPDATE_ACCEPT_CONTEXT) failed.");
                /* Not a failure condition. Keep running. */
            }

            /* Get the local & remote address
             * TODO; error check
             */
            GetAcceptExSockaddrs(buf, len, PADDED_ADDR_SIZE, PADDED_ADDR_SIZE,
                                 &context->sa_server, &context->sa_server_len,
                                 &context->sa_client, &context->sa_client_len);

            /* For 'data', craft a bucket for our data result
             * and pass to worker_main as context->overlapped.Pointer
             */
            if (accf == 2 && BytesRead)
            {
                apr_bucket *b;
                b = apr_bucket_heap_create(buf, APR_BUCKET_BUFF_SIZE,
                                           apr_bucket_free, context->ba);
                /* Adjust the bucket to refer to the actual bytes read */
                b->length = BytesRead;
                context->overlapped.Pointer = b;
            }
            else
                context->overlapped.Pointer = NULL;
        }
        else /* (accf = 0)  e.g. 'none' */
        {
            /* There is no socket reuse without AcceptEx() */
            if (context->accept_socket != INVALID_SOCKET)
                closesocket(context->accept_socket);

            /* This could be a persistent event per-listener rather than
             * per-accept.  However, the event needs to be removed from
             * the target socket if not removed from the listen socket
             * prior to accept(), or the event select is inherited.
             * and must be removed from the accepted socket.
             */

            do {
                rv = WaitForMultipleObjectsEx(3, events, FALSE, INFINITE, TRUE);
            } while (rv == WAIT_IO_COMPLETION);


            if (rv != WAIT_OBJECT_0 + 2) {
                /* not FD_ACCEPT;
                 * exit_event triggered or event handle was closed
                 */
                break;
            }

            context->sa_server = (void *) context->buff;
            context->sa_server_len = sizeof(context->buff) / 2;
            context->sa_client_len = context->sa_server_len;
            context->sa_client = (void *) (context->buff
                                         + context->sa_server_len);

            context->accept_socket = accept(nlsd, context->sa_server,
                                            &context->sa_server_len);

            if (context->accept_socket == INVALID_SOCKET) {

                rv = apr_get_netos_error();
                if (   rv == APR_FROM_OS_ERROR(WSAECONNRESET)
                    || rv == APR_FROM_OS_ERROR(WSAEINPROGRESS)
                    || rv == APR_FROM_OS_ERROR(WSAEWOULDBLOCK) ) {
                    ap_log_error(APLOG_MARK, APLOG_DEBUG,
                                 rv, ap_server_conf, APLOGNO(00343)
                                 "accept() failed, retrying.");
                    continue;
                }

                /* A more serious error than 'retry', log it */
                ap_log_error(APLOG_MARK, APLOG_WARNING,
                             rv, ap_server_conf, APLOGNO(00344)
                             "accept() failed.");

                if (   rv == APR_FROM_OS_ERROR(WSAEMFILE)
                    || rv == APR_FROM_OS_ERROR(WSAENOBUFS) ) {
                    /* Hopefully a temporary condition in the provider? */
                    Sleep(100);
                    ++err_count;
                    if (err_count > MAX_ACCEPTEX_ERR_COUNT) {
                        ap_log_error(APLOG_MARK, APLOG_ERR, rv, ap_server_conf, APLOGNO(00345)
                                     "Child: Encountered too many accept() "
                                     "resource faults, aborting.");
                        break;
                    }
                    continue;
                }
                break;
            }
            /* Per MSDN, cancel the inherited association of this socket
             * to the WSAEventSelect API, and restore the state corresponding
             * to apr_os_sock_make's default assumptions (really, a flaw within
             * os_sock_make and os_sock_put that it does not query).
             */
            WSAEventSelect(context->accept_socket, 0, 0);
            context->overlapped.Pointer = NULL;
            err_count = 0;

            context->sa_server_len = sizeof(context->buff) / 2;
            if (getsockname(context->accept_socket, context->sa_server,
                            &context->sa_server_len) == SOCKET_ERROR) {
                ap_log_error(APLOG_MARK, APLOG_WARNING, apr_get_netos_error(), ap_server_conf, APLOGNO(00346)
                             "getsockname failed");
                continue;
            }
            if ((getpeername(context->accept_socket, context->sa_client,
                             &context->sa_client_len)) == SOCKET_ERROR) {
                ap_log_error(APLOG_MARK, APLOG_WARNING, apr_get_netos_error(), ap_server_conf, APLOGNO(00347)
                             "getpeername failed");
                memset(&context->sa_client, '\0', sizeof(context->sa_client));
            }
        }

        sockinfo.os_sock  = &context->accept_socket;
        sockinfo.local    = context->sa_server;
        sockinfo.remote   = context->sa_client;
        sockinfo.family   = context->sa_server->sa_family;
        sockinfo.type     = SOCK_STREAM;
        sockinfo.protocol = IPPROTO_TCP;
        /* Restore the state corresponding to apr_os_sock_make's default
         * assumption of timeout -1 (really, a flaw of os_sock_make and
         * os_sock_put that it does not query to determine ->timeout).
         * XXX: Upon a fix to APR, these three statements should disappear.
         */
        ioctlsocket(context->accept_socket, FIONBIO, &zero);
        setsockopt(context->accept_socket, SOL_SOCKET, SO_RCVTIMEO,
                   (char *) &zero, sizeof(zero));
        setsockopt(context->accept_socket, SOL_SOCKET, SO_SNDTIMEO,
                   (char *) &zero, sizeof(zero));
        apr_os_sock_make(&context->sock, &sockinfo, context->ptrans);

        /* When a connection is received, send an io completion notification
         * to the ThreadDispatchIOCP.
         */
        PostQueuedCompletionStatus(ThreadDispatchIOCP, BytesRead,
                                   IOCP_CONNECTION_ACCEPTED,
                                   &context->overlapped);
        context = NULL;
    }
    if (!accf)
        CloseHandle(events[2]);

    if (!shutdown_in_progress) {
        /* Yow, hit an irrecoverable error! Tell the child to die. */
        SetEvent(exit_event);
    }

    ap_log_error(APLOG_MARK, APLOG_DEBUG, APR_SUCCESS, ap_server_conf, APLOGNO(00348)
                 "Child: Accept thread exiting.");
    return 0;
}