--- a/src/event/ngx_event_accept.c
+++ b/src/event/ngx_event_accept.c
@@ -13,6 +13,10 @@
 static ngx_int_t ngx_enable_accept_events(ngx_cycle_t *cycle);
 static ngx_int_t ngx_disable_accept_events(ngx_cycle_t *cycle, ngx_uint_t all);
 static void ngx_close_accepted_connection(ngx_connection_t *c);
+#if (NGX_DEBUG)
+static void ngx_debug_accepted_connection(ngx_event_conf_t *ecf,
+    ngx_connection_t *c);
+#endif
 
 
 void
@@ -149,6 +153,8 @@ ngx_event_accept(ngx_event_t *ev)
             return;
         }
 
+        c->type = SOCK_STREAM;
+
 #if (NGX_STAT_STUB)
         (void) ngx_atomic_fetch_add(ngx_stat_active, 1);
 #endif
@@ -276,60 +282,10 @@ ngx_event_accept(ngx_event_t *ev)
 
 #if (NGX_DEBUG)
         {
-
-        ngx_str_t             addr;
-        struct sockaddr_in   *sin;
-        ngx_cidr_t           *cidr;
-        ngx_uint_t            i;
-        u_char                text[NGX_SOCKADDR_STRLEN];
-#if (NGX_HAVE_INET6)
-        struct sockaddr_in6  *sin6;
-        ngx_uint_t            n;
-#endif
-
-        cidr = ecf->debug_connection.elts;
-        for (i = 0; i < ecf->debug_connection.nelts; i++) {
-            if (cidr[i].family != (ngx_uint_t) c->sockaddr->sa_family) {
-                goto next;
-            }
-
-            switch (cidr[i].family) {
+        ngx_str_t  addr;
+        u_char     text[NGX_SOCKADDR_STRLEN];
 
-#if (NGX_HAVE_INET6)
-            case AF_INET6:
-                sin6 = (struct sockaddr_in6 *) c->sockaddr;
-                for (n = 0; n < 16; n++) {
-                    if ((sin6->sin6_addr.s6_addr[n]
-                        & cidr[i].u.in6.mask.s6_addr[n])
-                        != cidr[i].u.in6.addr.s6_addr[n])
-                    {
-                        goto next;
-                    }
-                }
-                break;
-#endif
-
-#if (NGX_HAVE_UNIX_DOMAIN)
-            case AF_UNIX:
-                break;
-#endif
-
-            default: /* AF_INET */
-                sin = (struct sockaddr_in *) c->sockaddr;
-                if ((sin->sin_addr.s_addr & cidr[i].u.in.mask)
-                    != cidr[i].u.in.addr)
-                {
-                    goto next;
-                }
-                break;
-            }
-
-            log->log_level = NGX_LOG_DEBUG_CONNECTION|NGX_LOG_DEBUG_ALL;
-            break;
-
-        next:
-            continue;
-        }
+        ngx_debug_accepted_connection(ecf, c);
 
         if (log->log_level & NGX_LOG_DEBUG_EVENT) {
             addr.data = text;
@@ -363,6 +319,324 @@ ngx_event_accept(ngx_event_t *ev)
 }
 
 
+#if !(NGX_WIN32)
+
+void
+ngx_event_recvmsg(ngx_event_t *ev)
+{
+    ssize_t            n;
+    ngx_log_t         *log;
+    ngx_err_t          err;
+    ngx_event_t       *rev, *wev;
+    struct iovec       iov[1];
+    struct msghdr      msg;
+    ngx_listening_t   *ls;
+    ngx_event_conf_t  *ecf;
+    ngx_connection_t  *c, *lc;
+    u_char             sa[NGX_SOCKADDRLEN];
+    static u_char      buffer[65535];
+
+#if (NGX_HAVE_MSGHDR_MSG_CONTROL)
+
+#if (NGX_HAVE_IP_RECVDSTADDR)
+    u_char             msg_control[CMSG_SPACE(sizeof(struct in_addr))];
+#elif (NGX_HAVE_IP_PKTINFO)
+    u_char             msg_control[CMSG_SPACE(sizeof(struct in_pktinfo))];
+#endif
+
+#if (NGX_HAVE_INET6 && NGX_HAVE_IPV6_RECVPKTINFO)
+    u_char             msg_control6[CMSG_SPACE(sizeof(struct in6_pktinfo))];
+#endif
+
+#endif
+
+    if (ev->timedout) {
+        if (ngx_enable_accept_events((ngx_cycle_t *) ngx_cycle) != NGX_OK) {
+            return;
+        }
+
+        ev->timedout = 0;
+    }
+
+    ecf = ngx_event_get_conf(ngx_cycle->conf_ctx, ngx_event_core_module);
+
+    if (!(ngx_event_flags & NGX_USE_KQUEUE_EVENT)) {
+        ev->available = ecf->multi_accept;
+    }
+
+    lc = ev->data;
+    ls = lc->listening;
+    ev->ready = 0;
+
+    ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
+                   "recvmsg on %V, ready: %d", &ls->addr_text, ev->available);
+
+    do {
+        ngx_memzero(&msg, sizeof(struct msghdr));
+
+        iov[0].iov_base = (void *) buffer;
+        iov[0].iov_len = sizeof(buffer);
+
+        msg.msg_name = &sa;
+        msg.msg_namelen = sizeof(sa);
+        msg.msg_iov = iov;
+        msg.msg_iovlen = 1;
+
+#if (NGX_HAVE_MSGHDR_MSG_CONTROL)
+
+        if (ls->wildcard) {
+
+#if (NGX_HAVE_IP_RECVDSTADDR || NGX_HAVE_IP_PKTINFO)
+            if (ls->sockaddr->sa_family == AF_INET) {
+                msg.msg_control = &msg_control;
+                msg.msg_controllen = sizeof(msg_control);
+            }
+#endif
+
+#if (NGX_HAVE_INET6 && NGX_HAVE_IPV6_RECVPKTINFO)
+            if (ls->sockaddr->sa_family == AF_INET6) {
+                msg.msg_control = &msg_control6;
+                msg.msg_controllen = sizeof(msg_control6);
+            }
+#endif
+        }
+
+#endif
+
+        n = recvmsg(lc->fd, &msg, 0);
+
+        if (n == -1) {
+            err = ngx_socket_errno;
+
+            if (err == NGX_EAGAIN) {
+                ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, err,
+                               "recvmsg() not ready");
+                return;
+            }
+
+            ngx_log_error(NGX_LOG_ALERT, ev->log, err, "recvmsg() failed");
+
+            return;
+        }
+
+#if (NGX_STAT_STUB)
+        (void) ngx_atomic_fetch_add(ngx_stat_accepted, 1);
+#endif
+
+#if (NGX_HAVE_MSGHDR_MSG_CONTROL)
+        if (msg.msg_flags & (MSG_TRUNC|MSG_CTRUNC)) {
+            ngx_log_error(NGX_LOG_ALERT, ev->log, 0,
+                          "recvmsg() truncated data");
+            continue;
+        }
+#endif
+
+        ngx_accept_disabled = ngx_cycle->connection_n / 8
+                              - ngx_cycle->free_connection_n;
+
+        c = ngx_get_connection(lc->fd, ev->log);
+        if (c == NULL) {
+            return;
+        }
+
+        c->shared = 1;
+        c->type = SOCK_DGRAM;
+        c->socklen = msg.msg_namelen;
+
+#if (NGX_STAT_STUB)
+        (void) ngx_atomic_fetch_add(ngx_stat_active, 1);
+#endif
+
+        c->pool = ngx_create_pool(ls->pool_size, ev->log);
+        if (c->pool == NULL) {
+            ngx_close_accepted_connection(c);
+            return;
+        }
+
+        c->sockaddr = ngx_palloc(c->pool, c->socklen);
+        if (c->sockaddr == NULL) {
+            ngx_close_accepted_connection(c);
+            return;
+        }
+
+        ngx_memcpy(c->sockaddr, msg.msg_name, c->socklen);
+
+        log = ngx_palloc(c->pool, sizeof(ngx_log_t));
+        if (log == NULL) {
+            ngx_close_accepted_connection(c);
+            return;
+        }
+
+        *log = ls->log;
+
+        c->send = ngx_udp_send;
+
+        c->log = log;
+        c->pool->log = log;
+
+        c->listening = ls;
+        c->local_sockaddr = ls->sockaddr;
+        c->local_socklen = ls->socklen;
+
+#if (NGX_HAVE_MSGHDR_MSG_CONTROL)
+
+        if (ls->wildcard) {
+            struct cmsghdr   *cmsg;
+            struct sockaddr  *sockaddr;
+
+            sockaddr = ngx_palloc(c->pool, c->local_socklen);
+            if (sockaddr == NULL) {
+                ngx_close_accepted_connection(c);
+                return;
+            }
+
+            ngx_memcpy(sockaddr, c->local_sockaddr, c->local_socklen);
+            c->local_sockaddr = sockaddr;
+
+            for (cmsg = CMSG_FIRSTHDR(&msg);
+                 cmsg != NULL;
+                 cmsg = CMSG_NXTHDR(&msg, cmsg))
+            {
+
+#if (NGX_HAVE_IP_RECVDSTADDR)
+
+                if (cmsg->cmsg_level == IPPROTO_IP
+                    && cmsg->cmsg_type == IP_RECVDSTADDR
+                    && sockaddr->sa_family == AF_INET)
+                {
+                    struct in_addr      *addr;
+                    struct sockaddr_in  *sin;
+
+                    addr = (struct in_addr *) CMSG_DATA(cmsg);
+                    sin = (struct sockaddr_in *) sockaddr;
+                    sin->sin_addr = *addr;
+
+                    break;
+                }
+
+#elif (NGX_HAVE_IP_PKTINFO)
+
+                if (cmsg->cmsg_level == IPPROTO_IP
+                    && cmsg->cmsg_type == IP_PKTINFO
+                    && sockaddr->sa_family == AF_INET)
+                {
+                    struct in_pktinfo   *pkt;
+                    struct sockaddr_in  *sin;
+
+                    pkt = (struct in_pktinfo *) CMSG_DATA(cmsg);
+                    sin = (struct sockaddr_in *) sockaddr;
+                    sin->sin_addr = pkt->ipi_addr;
+
+                    break;
+                }
+
+#endif
+
+#if (NGX_HAVE_INET6 && NGX_HAVE_IPV6_RECVPKTINFO)
+
+                if (cmsg->cmsg_level == IPPROTO_IPV6
+                    && cmsg->cmsg_type == IPV6_PKTINFO
+                    && sockaddr->sa_family == AF_INET6)
+                {
+                    struct in6_pktinfo   *pkt6;
+                    struct sockaddr_in6  *sin6;
+
+                    pkt6 = (struct in6_pktinfo *) CMSG_DATA(cmsg);
+                    sin6 = (struct sockaddr_in6 *) sockaddr;
+                    sin6->sin6_addr = pkt6->ipi6_addr;
+
+                    break;
+                }
+
+#endif
+
+            }
+        }
+
+#endif
+
+        c->buffer = ngx_create_temp_buf(c->pool, n);
+        if (c->buffer == NULL) {
+            ngx_close_accepted_connection(c);
+            return;
+        }
+
+        c->buffer->last = ngx_cpymem(c->buffer->last, buffer, n);
+
+        rev = c->read;
+        wev = c->write;
+
+        wev->ready = 1;
+
+        rev->log = log;
+        wev->log = log;
+
+        /*
+         * TODO: MT: - ngx_atomic_fetch_add()
+         *             or protection by critical section or light mutex
+         *
+         * TODO: MP: - allocated in a shared memory
+         *           - ngx_atomic_fetch_add()
+         *             or protection by critical section or light mutex
+         */
+
+        c->number = ngx_atomic_fetch_add(ngx_connection_counter, 1);
+
+#if (NGX_STAT_STUB)
+        (void) ngx_atomic_fetch_add(ngx_stat_handled, 1);
+#endif
+
+        if (ls->addr_ntop) {
+            c->addr_text.data = ngx_pnalloc(c->pool, ls->addr_text_max_len);
+            if (c->addr_text.data == NULL) {
+                ngx_close_accepted_connection(c);
+                return;
+            }
+
+            c->addr_text.len = ngx_sock_ntop(c->sockaddr, c->socklen,
+                                             c->addr_text.data,
+                                             ls->addr_text_max_len, 0);
+            if (c->addr_text.len == 0) {
+                ngx_close_accepted_connection(c);
+                return;
+            }
+        }
+
+#if (NGX_DEBUG)
+        {
+        ngx_str_t  addr;
+        u_char     text[NGX_SOCKADDR_STRLEN];
+
+        ngx_debug_accepted_connection(ecf, c);
+
+        if (log->log_level & NGX_LOG_DEBUG_EVENT) {
+            addr.data = text;
+            addr.len = ngx_sock_ntop(c->sockaddr, c->socklen, text,
+                                     NGX_SOCKADDR_STRLEN, 1);
+
+            ngx_log_debug4(NGX_LOG_DEBUG_EVENT, log, 0,
+                           "*%uA recvmsg: %V fd:%d n:%z",
+                           c->number, &addr, c->fd, n);
+        }
+
+        }
+#endif
+
+        log->data = NULL;
+        log->handler = NULL;
+
+        ls->handler(c);
+
+        if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
+            ev->available -= n;
+        }
+
+    } while (ev->available);
+}
+
+#endif
+
+
 ngx_int_t
 ngx_trylock_accept_mutex(ngx_cycle_t *cycle)
 {
@@ -476,7 +750,7 @@ ngx_close_accepted_connection(ngx_connec
     fd = c->fd;
     c->fd = (ngx_socket_t) -1;
 
-    if (ngx_close_socket(fd) == -1) {
+    if (!c->shared && ngx_close_socket(fd) == -1) {
         ngx_log_error(NGX_LOG_ALERT, c->log, ngx_socket_errno,
                       ngx_close_socket_n " failed");
     }
@@ -497,3 +771,64 @@ ngx_accept_log_error(ngx_log_t *log, u_c
     return ngx_snprintf(buf, len, " while accepting new connection on %V",
                         log->data);
 }
+
+
+#if (NGX_DEBUG)
+
+static void
+ngx_debug_accepted_connection(ngx_event_conf_t *ecf, ngx_connection_t *c)
+{
+    struct sockaddr_in   *sin;
+    ngx_cidr_t           *cidr;
+    ngx_uint_t            i;
+#if (NGX_HAVE_INET6)
+    struct sockaddr_in6  *sin6;
+    ngx_uint_t            n;
+#endif
+
+    cidr = ecf->debug_connection.elts;
+    for (i = 0; i < ecf->debug_connection.nelts; i++) {
+        if (cidr[i].family != (ngx_uint_t) c->sockaddr->sa_family) {
+            goto next;
+        }
+
+        switch (cidr[i].family) {
+
+#if (NGX_HAVE_INET6)
+        case AF_INET6:
+            sin6 = (struct sockaddr_in6 *) c->sockaddr;
+            for (n = 0; n < 16; n++) {
+                if ((sin6->sin6_addr.s6_addr[n]
+                    & cidr[i].u.in6.mask.s6_addr[n])
+                    != cidr[i].u.in6.addr.s6_addr[n])
+                {
+                    goto next;
+                }
+            }
+            break;
+#endif
+
+#if (NGX_HAVE_UNIX_DOMAIN)
+        case AF_UNIX:
+            break;
+#endif
+
+        default: /* AF_INET */
+            sin = (struct sockaddr_in *) c->sockaddr;
+            if ((sin->sin_addr.s_addr & cidr[i].u.in.mask)
+                != cidr[i].u.in.addr)
+            {
+                goto next;
+            }
+            break;
+        }
+
+        c->log->log_level = NGX_LOG_DEBUG_CONNECTION|NGX_LOG_DEBUG_ALL;
+        break;
+
+    next:
+        continue;
+    }
+}
+
+#endif