}
int
-vcl_session_read_ready (vcl_session_t * session)
+vcl_session_read_ready (vcl_session_t * s)
{
- u32 max_deq;
-
- /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
- if (PREDICT_FALSE (session->is_vep))
+ if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
{
VDBG (0, "ERROR: session %u: cannot read from an epoll session!",
- session->session_index);
+ s->session_index);
return VPPCOM_EBADFD;
}
- if (PREDICT_FALSE (!(session->session_state & (STATE_OPEN | STATE_LISTEN))))
+ if (vcl_session_is_open (s))
{
- vcl_session_state_t state = session->session_state;
- int rv;
+ if (vcl_session_is_ct (s))
+ return svm_fifo_max_dequeue_cons (s->ct_rx_fifo);
- rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
+ if (s->is_dgram)
+ {
+ session_dgram_pre_hdr_t ph;
+ u32 max_deq;
+
+ max_deq = svm_fifo_max_dequeue_cons (s->rx_fifo);
+ if (max_deq <= SESSION_CONN_HDR_LEN)
+ return 0;
+ if (svm_fifo_peek (s->rx_fifo, 0, sizeof (ph), (u8 *) & ph) < 0)
+ return 0;
+ if (ph.data_length + SESSION_CONN_HDR_LEN > max_deq)
+ return 0;
+
+ return ph.data_length;
+ }
- VDBG (1, "session %u [0x%llx]: not open! state 0x%x (%s), ret %d (%s)",
- session->session_index, session->vpp_handle, state,
- vppcom_session_state_str (state), rv, vppcom_retval_str (rv));
- return rv;
+ return svm_fifo_max_dequeue_cons (s->rx_fifo);
}
-
- if (session->session_state & STATE_LISTEN)
- return clib_fifo_elts (session->accept_evts_fifo);
-
- if (vcl_session_is_ct (session))
- return svm_fifo_max_dequeue_cons (session->ct_rx_fifo);
-
- max_deq = svm_fifo_max_dequeue_cons (session->rx_fifo);
-
- if (session->is_dgram)
+ else if (s->session_state == VCL_STATE_LISTEN)
{
- session_dgram_pre_hdr_t ph;
-
- if (max_deq <= SESSION_CONN_HDR_LEN)
- return 0;
- if (svm_fifo_peek (session->rx_fifo, 0, sizeof (ph), (u8 *) & ph) < 0)
- return 0;
- if (ph.data_length + SESSION_CONN_HDR_LEN > max_deq)
- return 0;
-
- return ph.data_length;
+ return clib_fifo_elts (s->accept_evts_fifo);
+ }
+ else
+ {
+ return (s->session_state == VCL_STATE_DISCONNECT) ?
+ VPPCOM_ECONNRESET : VPPCOM_ENOTCONN;
}
-
- return max_deq;
}
int
-vcl_session_write_ready (vcl_session_t * session)
+vcl_session_write_ready (vcl_session_t * s)
{
- /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
- if (PREDICT_FALSE (session->is_vep))
+ if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
{
VDBG (0, "session %u [0x%llx]: cannot write to an epoll session!",
- session->session_index, session->vpp_handle);
+ s->session_index, s->vpp_handle);
return VPPCOM_EBADFD;
}
- if (PREDICT_FALSE (session->session_state & STATE_LISTEN))
+ if (vcl_session_is_open (s))
{
- if (session->tx_fifo)
- return svm_fifo_max_enqueue_prod (session->tx_fifo);
- else
- return VPPCOM_EBADFD;
- }
-
- if (PREDICT_FALSE (!(session->session_state & STATE_OPEN)))
- {
- vcl_session_state_t state = session->session_state;
- int rv;
+ if (vcl_session_is_ct (s))
+ return svm_fifo_max_enqueue_prod (s->ct_tx_fifo);
- rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
- VDBG (0, "session %u [0x%llx]: not open! state 0x%x (%s), ret %d (%s)",
- session->session_index, session->vpp_handle, state,
- vppcom_session_state_str (state), rv, vppcom_retval_str (rv));
- return rv;
- }
+ if (s->is_dgram)
+ {
+ u32 max_enq = svm_fifo_max_enqueue_prod (s->tx_fifo);
- if (vcl_session_is_ct (session))
- return svm_fifo_max_enqueue_prod (session->ct_tx_fifo);
+ if (max_enq <= sizeof (session_dgram_hdr_t))
+ return 0;
+ return max_enq - sizeof (session_dgram_hdr_t);
+ }
- if (session->is_dgram)
+ return svm_fifo_max_enqueue_prod (s->tx_fifo);
+ }
+ else if (s->session_state == VCL_STATE_LISTEN)
{
- u32 max_enq = svm_fifo_max_enqueue_prod (session->tx_fifo);
-
- if (max_enq <= sizeof (session_dgram_hdr_t))
- return 0;
- return max_enq - sizeof (session_dgram_hdr_t);
+ if (s->tx_fifo)
+ return svm_fifo_max_enqueue_prod (s->tx_fifo);
+ else
+ return VPPCOM_EBADFD;
+ }
+ else
+ {
+ return (s->session_state == VCL_STATE_DISCONNECT) ?
+ VPPCOM_ECONNRESET : VPPCOM_ENOTCONN;
}
-
- return svm_fifo_max_enqueue_prod (session->tx_fifo);
}
int