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vcl: more session struct cleanup
[vpp.git] / src / vcl / vppcom.c
diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c
index 1e9e5c4..dd50df1 100644 (file)
--- a/src/vcl/vppcom.c
+++ b/src/vcl/vppcom.c
@@ -520,7 +520,7 @@ vcl_session_connected_handler (vcl_worker_t * wrk,
   session->transport.lcl_port = mp->lcl.port;
 
   /* Application closed session before connect reply */
-  if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK)
+  if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK)
       && session->session_state == VCL_STATE_CLOSED)
     vcl_send_session_disconnect (wrk, session);
   else
@@ -1288,7 +1288,7 @@ vppcom_session_create (u8 proto, u8 is_nonblocking)
   session->is_dgram = vcl_proto_is_dgram (proto);
 
   if (is_nonblocking)
-    VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
+    vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
 
   vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
           is_nonblocking, session_index);
@@ -1560,8 +1560,8 @@ vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
       goto handle;
     }
 
-  is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
-                                      VCL_SESS_ATTR_NONBLOCK);
+  is_nonblocking = vcl_session_has_attr (listen_session,
+                                        VCL_SESS_ATTR_NONBLOCK);
   while (1)
     {
       if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
@@ -1593,13 +1593,13 @@ handle:
   client_session = vcl_session_get (wrk, client_session_index);
 
   if (flags & O_NONBLOCK)
-    VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
+    vcl_session_set_attr (client_session, VCL_SESS_ATTR_NONBLOCK);
 
   VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
        " flags %d, is_nonblocking %u", listen_session->session_index,
        listen_session->vpp_handle, client_session_index,
        client_session->vpp_handle, flags,
-       VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK));
+       vcl_session_has_attr (client_session, VCL_SESS_ATTR_NONBLOCK));
 
   if (ep)
     {
@@ -1699,7 +1699,7 @@ vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
 
   vcl_send_session_connect (wrk, session);
 
-  if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK))
+  if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK))
     {
       /* State set to STATE_UPDATED to ensure the session is not assumed
        * to be ready and to also allow the app to close it prior to vpp's
@@ -1819,11 +1819,11 @@ vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
       return vcl_session_closed_error (s);
     }
 
-  is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
+  is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
   is_ct = vcl_session_is_ct (s);
   mq = wrk->app_event_queue;
   rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
-  s->has_rx_evt = 0;
+  s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
 
   if (svm_fifo_is_empty_cons (rx_fifo))
     {
@@ -1929,11 +1929,11 @@ vppcom_session_read_segments (uint32_t session_handle,
   if (PREDICT_FALSE (!vcl_session_is_open (s)))
     return vcl_session_closed_error (s);
 
-  is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
+  is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
   is_ct = vcl_session_is_ct (s);
-  mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
+  mq = wrk->app_event_queue;
   rx_fifo = s->rx_fifo;
-  s->has_rx_evt = 0;
+  s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
 
   if (is_ct)
     svm_fifo_unset_event (s->rx_fifo);
@@ -1974,7 +1974,7 @@ vppcom_session_read_segments (uint32_t session_handle,
       svm_fifo_unset_event (s->rx_fifo);
       if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
          && svm_fifo_set_event (s->rx_fifo)
-         && VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK))
+         && vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
        {
          session_event_t *e;
          vec_add2 (wrk->unhandled_evts_vector, e, 1);
@@ -2051,7 +2051,7 @@ vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
 
   is_ct = vcl_session_is_ct (s);
   tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
-  is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
+  is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
 
   mq = wrk->app_event_queue;
   if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
@@ -2785,12 +2785,13 @@ vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
        break;
       vcl_fifo_rx_evt_valid_or_break (session);
       session_events = session->vep.ev.events;
-      if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
+      if (!(EPOLLIN & session->vep.ev.events)
+         || (session->flags & VCL_SESSION_F_HAS_RX_EVT))
        break;
       add_event = 1;
       events[*num_ev].events |= EPOLLIN;
       session_evt_data = session->vep.ev.data.u64;
-      session->has_rx_evt = 1;
+      session->flags |= VCL_SESSION_F_HAS_RX_EVT;
       break;
     case SESSION_IO_EVT_TX:
       sid = e->session_index;
@@ -3088,12 +3089,12 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op,
        {
          *flags =
            O_RDWR |
-           (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK) ?
+           (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK) ?
             O_NONBLOCK : 0);
          *buflen = sizeof (*flags);
          VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
                "is_nonblocking = %u", session_handle, *flags,
-               VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
+               vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
        }
       else
        rv = VPPCOM_EINVAL;
@@ -3103,13 +3104,13 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op,
       if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
        {
          if (*flags & O_NONBLOCK)
-           VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
+           vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
          else
-           VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
+           vcl_session_clear_attr (session, VCL_SESS_ATTR_NONBLOCK);
 
          VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
                " is_nonblocking = %u", session_handle, *flags,
-               VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
+               vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
        }
       else
        rv = VPPCOM_EINVAL;
@@ -3214,8 +3215,8 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op,
     case VPPCOM_ATTR_GET_LISTEN:
       if (buffer && buflen && (*buflen >= sizeof (int)))
        {
-         *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
-                                               VCL_SESS_ATTR_LISTEN);
+         *(int *) buffer = vcl_session_has_attr (session,
+                                                 VCL_SESS_ATTR_LISTEN);
          *buflen = sizeof (int);
 
          VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
@@ -3305,8 +3306,8 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op,
       if (buffer && buflen && (*buflen >= sizeof (int)))
        {
          /* VPP-TBD */
-         *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
-                                               VCL_SESS_ATTR_REUSEADDR);
+         *(int *) buffer = vcl_session_has_attr (session,
+                                                 VCL_SESS_ATTR_REUSEADDR);
          *buflen = sizeof (int);
 
          VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
@@ -3318,16 +3319,16 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op,
 
     case VPPCOM_ATTR_SET_REUSEADDR:
       if (buffer && buflen && (*buflen == sizeof (int)) &&
-         !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
+         !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
        {
          /* VPP-TBD */
          if (*(int *) buffer)
-           VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
+           vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEADDR);
          else
-           VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
+           vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEADDR);
 
          VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
-               VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
+               vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEADDR),
                *buflen);
        }
       else
@@ -3338,8 +3339,8 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op,
       if (buffer && buflen && (*buflen >= sizeof (int)))
        {
          /* VPP-TBD */
-         *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
-                                               VCL_SESS_ATTR_REUSEPORT);
+         *(int *) buffer = vcl_session_has_attr (session,
+                                                 VCL_SESS_ATTR_REUSEPORT);
          *buflen = sizeof (int);
 
          VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
@@ -3351,16 +3352,16 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op,
 
     case VPPCOM_ATTR_SET_REUSEPORT:
       if (buffer && buflen && (*buflen == sizeof (int)) &&
-         !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
+         !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
        {
          /* VPP-TBD */
          if (*(int *) buffer)
-           VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
+           vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEPORT);
          else
-           VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
+           vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEPORT);
 
          VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
-               VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
+               vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEPORT),
                *buflen);
        }
       else
@@ -3371,8 +3372,8 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op,
       if (buffer && buflen && (*buflen >= sizeof (int)))
        {
          /* VPP-TBD */
-         *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
-                                               VCL_SESS_ATTR_BROADCAST);
+         *(int *) buffer = vcl_session_has_attr (session,
+                                                 VCL_SESS_ATTR_BROADCAST);
          *buflen = sizeof (int);
 
          VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
@@ -3387,12 +3388,12 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op,
        {
          /* VPP-TBD */
          if (*(int *) buffer)
-           VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
+           vcl_session_set_attr (session, VCL_SESS_ATTR_BROADCAST);
          else
-           VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
+           vcl_session_clear_attr (session, VCL_SESS_ATTR_BROADCAST);
 
          VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
-               VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
+               vcl_session_has_attr (session, VCL_SESS_ATTR_BROADCAST),
                *buflen);
        }
       else
@@ -3403,8 +3404,8 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op,
       if (buffer && buflen && (*buflen >= sizeof (int)))
        {
          /* VPP-TBD */
-         *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
-                                               VCL_SESS_ATTR_V6ONLY);
+         *(int *) buffer = vcl_session_has_attr (session,
+                                                 VCL_SESS_ATTR_V6ONLY);
          *buflen = sizeof (int);
 
          VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
@@ -3419,12 +3420,12 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op,
        {
          /* VPP-TBD */
          if (*(int *) buffer)
-           VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
+           vcl_session_set_attr (session, VCL_SESS_ATTR_V6ONLY);
          else
-           VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
+           vcl_session_clear_attr (session, VCL_SESS_ATTR_V6ONLY);
 
          VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
-               VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
+               vcl_session_has_attr (session, VCL_SESS_ATTR_V6ONLY),
                *buflen);
        }
       else
@@ -3435,8 +3436,8 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op,
       if (buffer && buflen && (*buflen >= sizeof (int)))
        {
          /* VPP-TBD */
-         *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
-                                               VCL_SESS_ATTR_KEEPALIVE);
+         *(int *) buffer = vcl_session_has_attr (session,
+                                                 VCL_SESS_ATTR_KEEPALIVE);
          *buflen = sizeof (int);
 
          VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
@@ -3451,12 +3452,12 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op,
        {
          /* VPP-TBD */
          if (*(int *) buffer)
-           VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
+           vcl_session_set_attr (session, VCL_SESS_ATTR_KEEPALIVE);
          else
-           VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
+           vcl_session_clear_attr (session, VCL_SESS_ATTR_KEEPALIVE);
 
          VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
-               VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
+               vcl_session_has_attr (session, VCL_SESS_ATTR_KEEPALIVE),
                *buflen);
        }
       else
@@ -3467,8 +3468,8 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op,
       if (buffer && buflen && (*buflen >= sizeof (int)))
        {
          /* VPP-TBD */
-         *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
-                                               VCL_SESS_ATTR_TCP_NODELAY);
+         *(int *) buffer = vcl_session_has_attr (session,
+                                                 VCL_SESS_ATTR_TCP_NODELAY);
          *buflen = sizeof (int);
 
          VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
@@ -3483,12 +3484,12 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op,
        {
          /* VPP-TBD */
          if (*(int *) buffer)
-           VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
+           vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
          else
-           VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
+           vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
 
          VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
-               VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
+               vcl_session_has_attr (session, VCL_SESS_ATTR_TCP_NODELAY),
                *buflen);
        }
       else
@@ -3499,8 +3500,8 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op,
       if (buffer && buflen && (*buflen >= sizeof (int)))
        {
          /* VPP-TBD */
-         *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
-                                               VCL_SESS_ATTR_TCP_KEEPIDLE);
+         *(int *) buffer = vcl_session_has_attr (session,
+                                                 VCL_SESS_ATTR_TCP_KEEPIDLE);
          *buflen = sizeof (int);
 
          VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
@@ -3515,13 +3516,13 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op,
        {
          /* VPP-TBD */
          if (*(int *) buffer)
-           VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
+           vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
          else
-           VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
+           vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
 
          VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
-               VCL_SESS_ATTR_TEST (session->attr,
-                                   VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
+               vcl_session_has_attr (session,
+                                     VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
        }
       else
        rv = VPPCOM_EINVAL;
@@ -3531,8 +3532,8 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op,
       if (buffer && buflen && (*buflen >= sizeof (int)))
        {
          /* VPP-TBD */
-         *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
-                                               VCL_SESS_ATTR_TCP_KEEPINTVL);
+         *(int *) buffer = vcl_session_has_attr (session,
+                                                 VCL_SESS_ATTR_TCP_KEEPINTVL);
          *buflen = sizeof (int);
 
          VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
@@ -3547,13 +3548,13 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op,
        {
          /* VPP-TBD */
          if (*(int *) buffer)
-           VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
+           vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
          else
-           VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
+           vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
 
          VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
-               VCL_SESS_ATTR_TEST (session->attr,
-                                   VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
+               vcl_session_has_attr (session,
+                                     VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
        }
       else
        rv = VPPCOM_EINVAL;
@@ -3588,15 +3589,15 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op,
 
     case VPPCOM_ATTR_SET_SHUT:
       if (*flags == SHUT_RD || *flags == SHUT_RDWR)
-       VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
+       vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_RD);
       if (*flags == SHUT_WR || *flags == SHUT_RDWR)
-       VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
+       vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_WR);
       break;
 
     case VPPCOM_ATTR_GET_SHUT:
-      if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
+      if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_RD))
        tmp_flags = 1;
-      if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
+      if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_WR))
        tmp_flags |= 2;
       if (tmp_flags == 1)
        *(int *) buffer = SHUT_RD;
Vector Packet Processing