app_wrk->app_index = app->app_index;
app_wrk->wrk_map_index = ~0;
app_wrk->connects_seg_manager = APP_INVALID_SEGMENT_MANAGER_INDEX;
- app_wrk->first_segment_manager = APP_INVALID_SEGMENT_MANAGER_INDEX;
+ clib_spinlock_init (&app_wrk->detached_seg_managers_lock);
+ clib_spinlock_init (&app_wrk->postponed_mq_msgs_lock);
APP_DBG ("New app %v worker %u", app->name, app_wrk->wrk_index);
return app_wrk;
}
{
application_t *app = application_get (app_wrk->app_index);
vnet_unlisten_args_t _a, *a = &_a;
- u64 handle, *handles = 0;
+ u64 handle, *handles = 0, *sm_indices = 0;
segment_manager_t *sm;
+ session_handle_t *sh;
session_t *ls;
u32 sm_index;
int i;
hash_foreach (handle, sm_index, app_wrk->listeners_table, ({
ls = listen_session_get_from_handle (handle);
vec_add1 (handles, app_listen_session_handle (ls));
+ vec_add1 (sm_indices, sm_index);
sm = segment_manager_get (sm_index);
- sm->app_wrk_index = SEGMENT_MANAGER_INVALID_APP_INDEX;
}));
/* *INDENT-ON* */
for (i = 0; i < vec_len (handles); i++)
{
+ /* Cleanup listener */
a->app_index = app->app_index;
a->wrk_map_index = app_wrk->wrk_map_index;
a->handle = handles[i];
- /* seg manager is removed when unbind completes */
(void) vnet_unlisten (a);
+
+ sm = segment_manager_get_if_valid (sm_indices[i]);
+ if (sm && !segment_manager_app_detached (sm))
+ {
+ sm->first_is_protected = 0;
+ segment_manager_init_free (sm);
+ }
}
+ vec_reset_length (handles);
+ vec_free (sm_indices);
+ hash_free (app_wrk->listeners_table);
/*
* Connects segment manager cleanup
segment_manager_init_free (sm);
}
- /* If first segment manager is used by a listener */
- if (app_wrk->first_segment_manager != APP_INVALID_SEGMENT_MANAGER_INDEX
- && app_wrk->first_segment_manager != app_wrk->connects_seg_manager)
+ /*
+ * Half-open cleanup
+ */
+
+ pool_foreach (sh, app_wrk->half_open_table)
+ session_cleanup_half_open (*sh);
+
+ pool_free (app_wrk->half_open_table);
+
+ /*
+ * Detached listener segment managers cleanup
+ */
+ for (i = 0; i < vec_len (app_wrk->detached_seg_managers); i++)
{
- sm = segment_manager_get (app_wrk->first_segment_manager);
- sm->first_is_protected = 0;
- sm->app_wrk_index = SEGMENT_MANAGER_INVALID_APP_INDEX;
- /* .. and has no fifos, e.g. it might be used for redirected sessions,
- * remove it */
- if (!segment_manager_has_fifos (sm))
- segment_manager_free (sm);
+ sm = segment_manager_get (app_wrk->detached_seg_managers[i]);
+ segment_manager_init_free (sm);
}
+ vec_free (app_wrk->detached_seg_managers);
+ clib_spinlock_free (&app_wrk->detached_seg_managers_lock);
+ clib_spinlock_free (&app_wrk->postponed_mq_msgs_lock);
if (CLIB_DEBUG)
clib_memset (app_wrk, 0xfe, sizeof (*app_wrk));
static segment_manager_t *
app_worker_alloc_segment_manager (app_worker_t * app_wrk)
{
- segment_manager_t *sm = 0;
-
- /* If the first segment manager is not in use, don't allocate a new one */
- if (app_wrk->first_segment_manager != APP_INVALID_SEGMENT_MANAGER_INDEX
- && app_wrk->first_segment_manager_in_use == 0)
- {
- sm = segment_manager_get (app_wrk->first_segment_manager);
- app_wrk->first_segment_manager_in_use = 1;
- return sm;
- }
+ segment_manager_t *sm;
sm = segment_manager_alloc ();
sm->app_wrk_index = app_wrk->wrk_index;
-
+ segment_manager_init (sm);
return sm;
}
&rx_fifo, &tx_fifo)))
return rv;
- rx_fifo->master_session_index = s->session_index;
+ rx_fifo->shr->master_session_index = s->session_index;
rx_fifo->master_thread_index = s->thread_index;
- tx_fifo->master_session_index = s->session_index;
+ tx_fifo->shr->master_session_index = s->session_index;
tx_fifo->master_thread_index = s->thread_index;
s->rx_fifo = rx_fifo;
/* Allocate segment manager. All sessions derived out of a listen session
* have fifos allocated by the same segment manager. */
if (!(sm = app_worker_alloc_segment_manager (app_wrk)))
- return -1;
+ return SESSION_E_ALLOC;
+
+ /* Once the first segment is mapped, don't remove it until unlisten */
+ sm->first_is_protected = 1;
/* Keep track of the segment manager for the listener or this worker */
hash_set (app_wrk->listeners_table, listen_session_get_handle (ls),
segment_manager_index (sm));
- if (session_transport_service_type (ls) == TRANSPORT_SERVICE_CL)
+ if (transport_connection_is_cless (session_get_transport (ls)))
{
- if (!ls->rx_fifo && app_worker_alloc_session_fifos (sm, ls))
- return -1;
+ if (ls->rx_fifo)
+ return SESSION_E_NOSUPPORT;
+ return app_worker_alloc_session_fifos (sm, ls);
}
return 0;
}
app_listener_t * app_listener)
{
session_t *ls;
+ int rv;
if (clib_bitmap_get (app_listener->workers, app_wrk->wrk_map_index))
- return VNET_API_ERROR_ADDRESS_IN_USE;
+ return SESSION_E_ALREADY_LISTENING;
app_listener->workers = clib_bitmap_set (app_listener->workers,
app_wrk->wrk_map_index, 1);
if (app_listener->session_index != SESSION_INVALID_INDEX)
{
ls = session_get (app_listener->session_index, 0);
- if (app_worker_init_listener (app_wrk, ls))
- return -1;
+ if ((rv = app_worker_init_listener (app_wrk, ls)))
+ return rv;
}
if (app_listener->local_index != SESSION_INVALID_INDEX)
{
ls = session_get (app_listener->local_index, 0);
- if (app_worker_init_listener (app_wrk, ls))
- return -1;
+ if ((rv = app_worker_init_listener (app_wrk, ls)))
+ return rv;
}
return 0;
}
+static void
+app_worker_add_detached_sm (app_worker_t * app_wrk, u32 sm_index)
+{
+ vec_add1 (app_wrk->detached_seg_managers, sm_index);
+}
+
+void
+app_worker_del_detached_sm (app_worker_t * app_wrk, u32 sm_index)
+{
+ u32 i;
+
+ clib_spinlock_lock (&app_wrk->detached_seg_managers_lock);
+ for (i = 0; i < vec_len (app_wrk->detached_seg_managers); i++)
+ {
+ if (app_wrk->detached_seg_managers[i] == sm_index)
+ {
+ vec_del1 (app_wrk->detached_seg_managers, i);
+ break;
+ }
+ }
+ clib_spinlock_unlock (&app_wrk->detached_seg_managers_lock);
+}
+
static void
app_worker_stop_listen_session (app_worker_t * app_wrk, session_t * ls)
{
session_handle_t handle;
segment_manager_t *sm;
uword *sm_indexp;
+ session_state_t *states = 0;
handle = listen_session_get_handle (ls);
sm_indexp = hash_get (app_wrk->listeners_table, handle);
if (PREDICT_FALSE (!sm_indexp))
return;
- sm = segment_manager_get (*sm_indexp);
- if (app_wrk->first_segment_manager == *sm_indexp)
+ /* Dealloc fifos, if any (dgram listeners) */
+ if (ls->rx_fifo)
{
- /* Delete sessions but don't remove segment manager */
- app_wrk->first_segment_manager_in_use = 0;
- segment_manager_del_sessions (sm);
+ segment_manager_dealloc_fifos (ls->rx_fifo, ls->tx_fifo);
+ ls->tx_fifo = ls->rx_fifo = 0;
}
- else
+
+ /* Try to cleanup segment manager */
+ sm = segment_manager_get (*sm_indexp);
+ if (sm)
{
- segment_manager_init_free (sm);
+ sm->first_is_protected = 0;
+ segment_manager_app_detach (sm);
+ if (!segment_manager_has_fifos (sm))
+ {
+ /* Empty segment manager, cleanup it up */
+ segment_manager_free (sm);
+ }
+ else
+ {
+ /* Delete sessions in CREATED state */
+ vec_add1 (states, SESSION_STATE_CREATED);
+ segment_manager_del_sessions_filter (sm, states);
+ vec_free (states);
+
+ /* Track segment manager in case app detaches and all the
+ * outstanding sessions need to be closed */
+ app_worker_add_detached_sm (app_wrk, *sm_indexp);
+ sm->flags |= SEG_MANAGER_F_DETACHED_LISTENER;
+ }
}
+
hash_unset (app_wrk->listeners_table, handle);
}
listener = listen_session_get_from_handle (s->listener_handle);
app_wrk = application_listener_select_worker (listener);
- s->app_wrk_index = app_wrk->wrk_index;
+ if (PREDICT_FALSE (app_wrk->mq_congested))
+ return -1;
+ s->app_wrk_index = app_wrk->wrk_index;
app = application_get (app_wrk->app_index);
if (app->cb_fns.fifo_tuning_callback)
s->flags |= SESSION_F_CUSTOM_FIFO_TUNING;
application_t *app = application_get (app_wrk->app_index);
segment_manager_t *sm;
- /* Allocate fifos for session, unless the app is a builtin proxy */
- if (!application_is_builtin_proxy (app))
- {
- sm = app_worker_get_connect_segment_manager (app_wrk);
- if (app_worker_alloc_session_fifos (sm, s))
- return -1;
- }
-
if (app->cb_fns.fifo_tuning_callback)
s->flags |= SESSION_F_CUSTOM_FIFO_TUNING;
- return 0;
+ /* Allocate fifos for session, unless the app is a builtin proxy */
+ if (application_is_builtin_proxy (app))
+ return 0;
+
+ sm = app_worker_get_connect_segment_manager (app_wrk);
+ return app_worker_alloc_session_fifos (sm, s);
}
int
-app_worker_connect_notify (app_worker_t * app_wrk, session_t * s, u32 opaque)
+app_worker_connect_notify (app_worker_t * app_wrk, session_t * s,
+ session_error_t err, u32 opaque)
{
application_t *app = application_get (app_wrk->app_index);
return app->cb_fns.session_connected_callback (app_wrk->wrk_index, opaque,
- s, s == 0 /* is_fail */ );
+ s, err);
+}
+
+int
+app_worker_add_half_open (app_worker_t *app_wrk, session_handle_t sh)
+{
+ session_handle_t *shp;
+
+ ASSERT (session_vlib_thread_is_cl_thread ());
+ pool_get (app_wrk->half_open_table, shp);
+ *shp = sh;
+
+ return (shp - app_wrk->half_open_table);
+}
+
+int
+app_worker_del_half_open (app_worker_t *app_wrk, session_t *s)
+{
+ application_t *app = application_get (app_wrk->app_index);
+ ASSERT (session_vlib_thread_is_cl_thread ());
+ pool_put_index (app_wrk->half_open_table, s->ho_index);
+ if (app->cb_fns.half_open_cleanup_callback)
+ app->cb_fns.half_open_cleanup_callback (s);
+ return 0;
}
int
s->rx_fifo = 0;
s->tx_fifo = 0;
- sm = app_worker_get_or_alloc_connect_segment_manager (app_wrk);
+ sm = app_worker_get_connect_segment_manager (app_wrk);
if (app_worker_alloc_session_fifos (sm, s))
return -1;
}
int
-app_worker_connect_session (app_worker_t * app, session_endpoint_t * sep,
- u32 api_context)
+app_worker_connect_session (app_worker_t *app_wrk, session_endpoint_cfg_t *sep,
+ session_handle_t *rsh)
{
- int rv;
+ if (PREDICT_FALSE (app_wrk->mq_congested))
+ return SESSION_E_REFUSED;
- /* Make sure we have a segment manager for connects */
- app_worker_alloc_connects_segment_manager (app);
+ sep->app_wrk_index = app_wrk->wrk_index;
- if ((rv = session_open (app->wrk_index, sep, api_context)))
- return rv;
-
- return 0;
+ return session_open (sep, rsh);
}
int
return app->cb_fns.fifo_tuning_callback (s, f, act, len);
}
-int
-app_worker_alloc_connects_segment_manager (app_worker_t * app_wrk)
-{
- segment_manager_t *sm;
-
- if (app_wrk->connects_seg_manager == APP_INVALID_SEGMENT_MANAGER_INDEX)
- {
- sm = app_worker_alloc_segment_manager (app_wrk);
- if (sm == 0)
- return -1;
- app_wrk->connects_seg_manager = segment_manager_index (sm);
- }
- return 0;
-}
-
segment_manager_t *
app_worker_get_connect_segment_manager (app_worker_t * app)
{
return segment_manager_get (app->connects_seg_manager);
}
-segment_manager_t *
-app_worker_get_or_alloc_connect_segment_manager (app_worker_t * app_wrk)
-{
- if (app_wrk->connects_seg_manager == (u32) ~ 0)
- app_worker_alloc_connects_segment_manager (app_wrk);
- return segment_manager_get (app_wrk->connects_seg_manager);
-}
-
segment_manager_t *
app_worker_get_listen_segment_manager (app_worker_t * app,
session_t * listener)
return app_wrk->app_is_builtin;
}
+static int
+app_wrk_send_fd (app_worker_t *app_wrk, int fd)
+{
+ if (!appns_sapi_enabled ())
+ {
+ vl_api_registration_t *reg;
+ clib_error_t *error;
+
+ reg =
+ vl_mem_api_client_index_to_registration (app_wrk->api_client_index);
+ if (!reg)
+ {
+ clib_warning ("no api registration for client: %u",
+ app_wrk->api_client_index);
+ return -1;
+ }
+
+ if (vl_api_registration_file_index (reg) == VL_API_INVALID_FI)
+ return -1;
+
+ error = vl_api_send_fd_msg (reg, &fd, 1);
+ if (error)
+ {
+ clib_error_report (error);
+ return -1;
+ }
+
+ return 0;
+ }
+
+ app_sapi_msg_t smsg = { 0 };
+ app_namespace_t *app_ns;
+ clib_error_t *error;
+ application_t *app;
+ clib_socket_t *cs;
+ u32 cs_index;
+
+ app = application_get (app_wrk->app_index);
+ app_ns = app_namespace_get (app->ns_index);
+ cs_index = appns_sapi_handle_sock_index (app_wrk->api_client_index);
+ cs = appns_sapi_get_socket (app_ns, cs_index);
+ if (PREDICT_FALSE (!cs))
+ return -1;
+
+ /* There's no payload for the message only the type */
+ smsg.type = APP_SAPI_MSG_TYPE_SEND_FDS;
+ error = clib_socket_sendmsg (cs, &smsg, sizeof (smsg), &fd, 1);
+ if (error)
+ {
+ clib_error_report (error);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+mq_try_lock_and_alloc_msg (svm_msg_q_t *mq, session_mq_rings_e ring,
+ svm_msg_q_msg_t *msg)
+{
+ int rv, n_try = 0;
+
+ while (n_try < 75)
+ {
+ rv = svm_msg_q_lock_and_alloc_msg_w_ring (mq, ring, SVM_Q_NOWAIT, msg);
+ if (!rv)
+ return 0;
+ /*
+ * Break the loop if mq is full, usually this is because the
+ * app has crashed or is hanging on somewhere.
+ */
+ if (rv != -1)
+ break;
+ n_try += 1;
+ usleep (1);
+ }
+
+ return -1;
+}
+
+typedef union app_wrk_mq_rpc_args_
+{
+ struct
+ {
+ u32 thread_index;
+ u32 app_wrk_index;
+ };
+ uword as_uword;
+} app_wrk_mq_rpc_ags_t;
+
+static int
+app_wrk_handle_mq_postponed_msgs (void *arg)
+{
+ svm_msg_q_msg_t _mq_msg, *mq_msg = &_mq_msg;
+ app_wrk_postponed_msg_t *pm;
+ app_wrk_mq_rpc_ags_t args;
+ u32 max_msg, n_msg = 0;
+ app_worker_t *app_wrk;
+ session_event_t *evt;
+ svm_msg_q_t *mq;
+
+ args.as_uword = pointer_to_uword (arg);
+ app_wrk = app_worker_get_if_valid (args.app_wrk_index);
+ if (!app_wrk)
+ return 0;
+
+ mq = app_wrk->event_queue;
+
+ clib_spinlock_lock (&app_wrk->postponed_mq_msgs_lock);
+
+ max_msg = clib_min (32, clib_fifo_elts (app_wrk->postponed_mq_msgs));
+
+ while (n_msg < max_msg)
+ {
+ pm = clib_fifo_head (app_wrk->postponed_mq_msgs);
+ if (mq_try_lock_and_alloc_msg (mq, pm->ring, mq_msg))
+ break;
+
+ evt = svm_msg_q_msg_data (mq, mq_msg);
+ clib_memset (evt, 0, sizeof (*evt));
+ evt->event_type = pm->event_type;
+ clib_memcpy_fast (evt->data, pm->data, pm->len);
+
+ if (pm->fd != -1)
+ app_wrk_send_fd (app_wrk, pm->fd);
+
+ svm_msg_q_add_and_unlock (mq, mq_msg);
+
+ clib_fifo_advance_head (app_wrk->postponed_mq_msgs, 1);
+ n_msg += 1;
+ }
+
+ if (!clib_fifo_elts (app_wrk->postponed_mq_msgs))
+ {
+ app_wrk->mq_congested = 0;
+ }
+ else
+ {
+ session_send_rpc_evt_to_thread_force (
+ args.thread_index, app_wrk_handle_mq_postponed_msgs,
+ uword_to_pointer (args.as_uword, void *));
+ }
+
+ clib_spinlock_unlock (&app_wrk->postponed_mq_msgs_lock);
+
+ return 0;
+}
+
+static void
+app_wrk_add_mq_postponed_msg (app_worker_t *app_wrk, session_mq_rings_e ring,
+ u8 evt_type, void *msg, u32 msg_len, int fd)
+{
+ app_wrk_postponed_msg_t *pm;
+
+ clib_spinlock_lock (&app_wrk->postponed_mq_msgs_lock);
+
+ app_wrk->mq_congested = 1;
+
+ clib_fifo_add2 (app_wrk->postponed_mq_msgs, pm);
+ clib_memcpy_fast (pm->data, msg, msg_len);
+ pm->event_type = evt_type;
+ pm->ring = ring;
+ pm->len = msg_len;
+ pm->fd = fd;
+
+ if (clib_fifo_elts (app_wrk->postponed_mq_msgs) == 1)
+ {
+ app_wrk_mq_rpc_ags_t args = { .thread_index = vlib_get_thread_index (),
+ .app_wrk_index = app_wrk->wrk_index };
+
+ session_send_rpc_evt_to_thread_force (
+ args.thread_index, app_wrk_handle_mq_postponed_msgs,
+ uword_to_pointer (args.as_uword, void *));
+ }
+
+ clib_spinlock_unlock (&app_wrk->postponed_mq_msgs_lock);
+}
+
+always_inline void
+app_wrk_send_ctrl_evt_inline (app_worker_t *app_wrk, u8 evt_type, void *msg,
+ u32 msg_len, int fd)
+{
+ svm_msg_q_msg_t _mq_msg, *mq_msg = &_mq_msg;
+ svm_msg_q_t *mq = app_wrk->event_queue;
+ session_event_t *evt;
+ int rv;
+
+ if (PREDICT_FALSE (app_wrk->mq_congested))
+ goto handle_congestion;
+
+ rv = mq_try_lock_and_alloc_msg (mq, SESSION_MQ_CTRL_EVT_RING, mq_msg);
+ if (PREDICT_FALSE (rv))
+ goto handle_congestion;
+
+ evt = svm_msg_q_msg_data (mq, mq_msg);
+ clib_memset (evt, 0, sizeof (*evt));
+ evt->event_type = evt_type;
+ clib_memcpy_fast (evt->data, msg, msg_len);
+
+ if (fd != -1)
+ app_wrk_send_fd (app_wrk, fd);
+
+ svm_msg_q_add_and_unlock (mq, mq_msg);
+
+ return;
+
+handle_congestion:
+
+ app_wrk_add_mq_postponed_msg (app_wrk, SESSION_MQ_CTRL_EVT_RING, evt_type,
+ msg, msg_len, fd);
+}
+
+void
+app_wrk_send_ctrl_evt_fd (app_worker_t *app_wrk, u8 evt_type, void *msg,
+ u32 msg_len, int fd)
+{
+ app_wrk_send_ctrl_evt_inline (app_wrk, evt_type, msg, msg_len, fd);
+}
+
+void
+app_wrk_send_ctrl_evt (app_worker_t *app_wrk, u8 evt_type, void *msg,
+ u32 msg_len)
+{
+ app_wrk_send_ctrl_evt_inline (app_wrk, evt_type, msg, msg_len, -1);
+}
+
static inline int
app_send_io_evt_rx (app_worker_t * app_wrk, session_t * s)
{
+ svm_msg_q_msg_t _mq_msg = { 0 }, *mq_msg = &_mq_msg;
session_event_t *evt;
- svm_msg_q_msg_t msg;
svm_msg_q_t *mq;
+ u32 app_session;
+ int rv;
if (app_worker_application_is_builtin (app_wrk))
return app_worker_builtin_rx (app_wrk, s);
- /* Make sure the session is in established state within external apps.
- * Should be removed once we confirm closes to apps */
- if (PREDICT_FALSE (s->session_state != SESSION_STATE_READY
- && s->session_state != SESSION_STATE_LISTENING))
- return 0;
-
if (svm_fifo_has_event (s->rx_fifo))
return 0;
+ app_session = s->rx_fifo->shr->client_session_index;
mq = app_wrk->event_queue;
- svm_msg_q_lock (mq);
- if (PREDICT_FALSE (svm_msg_q_is_full (mq)))
- {
- clib_warning ("evt q full");
- svm_msg_q_unlock (mq);
- return -1;
- }
+ if (PREDICT_FALSE (app_wrk->mq_congested))
+ goto handle_congestion;
- if (PREDICT_FALSE (svm_msg_q_ring_is_full (mq, SESSION_MQ_IO_EVT_RING)))
- {
- clib_warning ("evt q rings full");
- svm_msg_q_unlock (mq);
- return -1;
- }
+ rv = mq_try_lock_and_alloc_msg (mq, SESSION_MQ_IO_EVT_RING, mq_msg);
- msg = svm_msg_q_alloc_msg_w_ring (mq, SESSION_MQ_IO_EVT_RING);
- evt = (session_event_t *) svm_msg_q_msg_data (mq, &msg);
- evt->session_index = s->rx_fifo->client_session_index;
+ if (PREDICT_FALSE (rv))
+ goto handle_congestion;
+
+ evt = svm_msg_q_msg_data (mq, mq_msg);
evt->event_type = SESSION_IO_EVT_RX;
+ evt->session_index = app_session;
(void) svm_fifo_set_event (s->rx_fifo);
- svm_msg_q_add_and_unlock (mq, &msg);
+
+ svm_msg_q_add_and_unlock (mq, mq_msg);
return 0;
+
+handle_congestion:
+
+ app_wrk_add_mq_postponed_msg (app_wrk, SESSION_MQ_IO_EVT_RING,
+ SESSION_IO_EVT_RX, &app_session,
+ sizeof (app_session), -1);
+ return -1;
}
static inline int
app_send_io_evt_tx (app_worker_t * app_wrk, session_t * s)
{
- svm_msg_q_t *mq;
+ svm_msg_q_msg_t _mq_msg = { 0 }, *mq_msg = &_mq_msg;
session_event_t *evt;
- svm_msg_q_msg_t msg;
+ svm_msg_q_t *mq;
+ u32 app_session;
+ int rv;
if (app_worker_application_is_builtin (app_wrk))
return app_worker_builtin_tx (app_wrk, s);
+ app_session = s->tx_fifo->shr->client_session_index;
mq = app_wrk->event_queue;
- svm_msg_q_lock (mq);
- if (PREDICT_FALSE (svm_msg_q_is_full (mq)))
- {
- clib_warning ("evt q full");
- svm_msg_q_unlock (mq);
- return -1;
- }
+ if (PREDICT_FALSE (app_wrk->mq_congested))
+ goto handle_congestion;
- if (PREDICT_FALSE (svm_msg_q_ring_is_full (mq, SESSION_MQ_IO_EVT_RING)))
- {
- clib_warning ("evt q rings full");
- svm_msg_q_unlock (mq);
- return -1;
- }
+ rv = mq_try_lock_and_alloc_msg (mq, SESSION_MQ_IO_EVT_RING, mq_msg);
+
+ if (PREDICT_FALSE (rv))
+ goto handle_congestion;
- msg = svm_msg_q_alloc_msg_w_ring (mq, SESSION_MQ_IO_EVT_RING);
- evt = (session_event_t *) svm_msg_q_msg_data (mq, &msg);
+ evt = svm_msg_q_msg_data (mq, mq_msg);
evt->event_type = SESSION_IO_EVT_TX;
- evt->session_index = s->tx_fifo->client_session_index;
+ evt->session_index = app_session;
+
+ svm_msg_q_add_and_unlock (mq, mq_msg);
- svm_msg_q_add_and_unlock (mq, &msg);
return 0;
+
+handle_congestion:
+
+ app_wrk_add_mq_postponed_msg (app_wrk, SESSION_MQ_IO_EVT_RING,
+ SESSION_IO_EVT_TX, &app_session,
+ sizeof (app_session), -1);
+ return -1;
}
/* *INDENT-OFF* */
if (!app_wrk)
{
if (verbose)
- s = format (s, "%-40s%-25s%=10s%-15s%-15s%-10s", "Connection", "App",
- "Wrk", "API Client", "ListenerID", "SegManager");
+ s = format (s, "%-" SESSION_CLI_ID_LEN "s%-25s%-10s%-15s%-15s%-10s",
+ "Connection", "App", "Wrk", "API Client", "ListenerID",
+ "SegManager");
else
- s = format (s, "%-40s%-25s%=10s", "Connection", "App", "Wrk");
+ s = format (s, "%-" SESSION_CLI_ID_LEN "s%-25s%-10s", "Connection",
+ "App", "Wrk");
return s;
}
if (verbose)
{
- char buf[32];
- sprintf (buf, "%u(%u)", app_wrk->wrk_map_index, app_wrk->wrk_index);
- s = format (s, "%-40s%-25s%=10s%-15u%-15u%-10u", str, app_name,
- buf, app_wrk->api_client_index, handle, sm_index);
+ u8 *buf;
+ buf = format (0, "%u(%u)", app_wrk->wrk_map_index, app_wrk->wrk_index);
+ s = format (s, "%-" SESSION_CLI_ID_LEN "v%-25v%-10v%-15u%-15u%-10u", str,
+ app_name, buf, app_wrk->api_client_index, handle, sm_index);
+ vec_free (buf);
}
else
- s = format (s, "%-40s%-25s%=10u", str, app_name, app_wrk->wrk_map_index);
+ s = format (s, "%-" SESSION_CLI_ID_LEN "v%-25v%=10u", str, app_name,
+ app_wrk->wrk_map_index);
+
+ vec_free (str);
return s;
}
app_worker_t *app_wrk = va_arg (*args, app_worker_t *);
u32 indent = 1;
- s = format (s, "%U wrk-index %u app-index %u map-index %u "
- "api-client-index %d\n", format_white_space, indent,
- app_wrk->wrk_index, app_wrk->app_index, app_wrk->wrk_map_index,
- app_wrk->api_client_index);
+ s = format (s,
+ "%U wrk-index %u app-index %u map-index %u "
+ "api-client-index %d mq-cong %u\n",
+ format_white_space, indent, app_wrk->wrk_index,
+ app_wrk->app_index, app_wrk->wrk_map_index,
+ app_wrk->api_client_index, app_wrk->mq_congested);
return s;
}