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-rw-r--r--src/svm/message_queue.c6
-rw-r--r--src/vnet/session/application_worker.c85
-rw-r--r--src/vnet/session/session_node.c9
3 files changed, 32 insertions, 68 deletions
diff --git a/src/svm/message_queue.c b/src/svm/message_queue.c
index 630442064f8..a40c4a46a39 100644
--- a/src/svm/message_queue.c
+++ b/src/svm/message_queue.c
@@ -120,7 +120,8 @@ svm_msg_q_lock_and_alloc_msg_w_ring (svm_msg_q_t * mq, u32 ring_index,
{
if (svm_msg_q_try_lock (mq))
return -1;
- if (PREDICT_FALSE (svm_msg_q_ring_is_full (mq, ring_index)))
+ if (PREDICT_FALSE (svm_msg_q_is_full (mq)
+ || svm_msg_q_ring_is_full (mq, ring_index)))
{
svm_msg_q_unlock (mq);
return -2;
@@ -135,7 +136,8 @@ svm_msg_q_lock_and_alloc_msg_w_ring (svm_msg_q_t * mq, u32 ring_index,
else
{
svm_msg_q_lock (mq);
- while (svm_msg_q_ring_is_full (mq, ring_index))
+ while (svm_msg_q_is_full (mq)
+ || svm_msg_q_ring_is_full (mq, ring_index))
svm_msg_q_wait (mq);
*msg = svm_msg_q_alloc_msg_w_ring (mq, ring_index);
}
diff --git a/src/vnet/session/application_worker.c b/src/vnet/session/application_worker.c
index cab96b5f391..0be1a2e85f7 100644
--- a/src/vnet/session/application_worker.c
+++ b/src/vnet/session/application_worker.c
@@ -535,34 +535,7 @@ app_worker_application_is_builtin (app_worker_t * app_wrk)
}
static inline int
-app_enqueue_evt (svm_msg_q_t * mq, svm_msg_q_msg_t * msg, u8 lock)
-{
- if (PREDICT_FALSE (svm_msg_q_is_full (mq)))
- {
- clib_warning ("evt q full");
- svm_msg_q_free_msg (mq, msg);
- if (lock)
- svm_msg_q_unlock (mq);
- return -1;
- }
-
- if (lock)
- {
- svm_msg_q_add_and_unlock (mq, msg);
- return 0;
- }
-
- /* Even when not locking the ring, we must wait for queue mutex */
- if (svm_msg_q_add (mq, msg, SVM_Q_WAIT))
- {
- clib_warning ("msg q add returned");
- return -1;
- }
- return 0;
-}
-
-static inline int
-app_send_io_evt_rx (app_worker_t * app_wrk, session_t * s, u8 lock)
+app_send_io_evt_rx (app_worker_t * app_wrk, session_t * s)
{
session_event_t *evt;
svm_msg_q_msg_t msg;
@@ -579,33 +552,35 @@ app_send_io_evt_rx (app_worker_t * app_wrk, session_t * s, u8 lock)
return 0;
mq = app_wrk->event_queue;
- if (lock)
- svm_msg_q_lock (mq);
+ 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 (svm_msg_q_ring_is_full (mq, SESSION_MQ_IO_EVT_RING)))
{
clib_warning ("evt q rings full");
- if (lock)
- svm_msg_q_unlock (mq);
+ svm_msg_q_unlock (mq);
return -1;
}
msg = svm_msg_q_alloc_msg_w_ring (mq, SESSION_MQ_IO_EVT_RING);
- ASSERT (!svm_msg_q_msg_is_invalid (&msg));
-
evt = (session_event_t *) svm_msg_q_msg_data (mq, &msg);
evt->session_index = s->rx_fifo->client_session_index;
evt->event_type = SESSION_IO_EVT_RX;
(void) svm_fifo_set_event (s->rx_fifo);
+ svm_msg_q_add_and_unlock (mq, &msg);
- if (app_enqueue_evt (mq, &msg, lock))
- return -1;
return 0;
}
static inline int
-app_send_io_evt_tx (app_worker_t * app_wrk, session_t * s, u8 lock)
+app_send_io_evt_tx (app_worker_t * app_wrk, session_t * s)
{
svm_msg_q_t *mq;
session_event_t *evt;
@@ -615,31 +590,34 @@ app_send_io_evt_tx (app_worker_t * app_wrk, session_t * s, u8 lock)
return app_worker_builtin_tx (app_wrk, s);
mq = app_wrk->event_queue;
- if (lock)
- svm_msg_q_lock (mq);
+ 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 (svm_msg_q_ring_is_full (mq, SESSION_MQ_IO_EVT_RING)))
{
clib_warning ("evt q rings full");
- if (lock)
- svm_msg_q_unlock (mq);
+ svm_msg_q_unlock (mq);
return -1;
}
msg = svm_msg_q_alloc_msg_w_ring (mq, SESSION_MQ_IO_EVT_RING);
- ASSERT (!svm_msg_q_msg_is_invalid (&msg));
-
evt = (session_event_t *) svm_msg_q_msg_data (mq, &msg);
evt->event_type = SESSION_IO_EVT_TX;
evt->session_index = s->tx_fifo->client_session_index;
- return app_enqueue_evt (mq, &msg, lock);
+ svm_msg_q_add_and_unlock (mq, &msg);
+ return 0;
}
/* *INDENT-OFF* */
typedef int (app_send_evt_handler_fn) (app_worker_t *app,
- session_t *s,
- u8 lock);
+ session_t *s);
static app_send_evt_handler_fn * const app_send_evt_handler_fns[2] = {
app_send_io_evt_rx,
app_send_io_evt_tx,
@@ -649,19 +627,6 @@ static app_send_evt_handler_fn * const app_send_evt_handler_fns[2] = {
/**
* Send event to application
*
- * Logic from queue perspective is non-blocking. If there's
- * not enough space to enqueue a message, we return.
- */
-int
-app_worker_send_event (app_worker_t * app, session_t * s, u8 evt_type)
-{
- ASSERT (app && evt_type <= SESSION_IO_EVT_TX);
- return app_send_evt_handler_fns[evt_type] (app, s, 0 /* lock */ );
-}
-
-/**
- * Send event to application
- *
* Logic from queue perspective is blocking. However, if queue is full,
* we return.
*/
@@ -669,7 +634,7 @@ int
app_worker_lock_and_send_event (app_worker_t * app, session_t * s,
u8 evt_type)
{
- return app_send_evt_handler_fns[evt_type] (app, s, 1 /* lock */ );
+ return app_send_evt_handler_fns[evt_type] (app, s);
}
u8 *
diff --git a/src/vnet/session/session_node.c b/src/vnet/session/session_node.c
index 35704b75a0a..bffae62ff79 100644
--- a/src/vnet/session/session_node.c
+++ b/src/vnet/session/session_node.c
@@ -175,7 +175,6 @@ session_mq_disconnected_handler (void *data)
svm_msg_q_lock_and_alloc_msg_w_ring (app_wrk->event_queue,
SESSION_MQ_CTRL_EVT_RING,
SVM_Q_WAIT, msg);
- svm_msg_q_unlock (app_wrk->event_queue);
evt = svm_msg_q_msg_data (app_wrk->event_queue, msg);
clib_memset (evt, 0, sizeof (*evt));
evt->event_type = SESSION_CTRL_EVT_DISCONNECTED_REPLY;
@@ -183,7 +182,7 @@ session_mq_disconnected_handler (void *data)
rmp->handle = mp->handle;
rmp->context = mp->context;
rmp->retval = rv;
- svm_msg_q_add (app_wrk->event_queue, msg, SVM_Q_WAIT);
+ svm_msg_q_add_and_unlock (app_wrk->event_queue, msg);
}
static void
@@ -250,13 +249,12 @@ session_mq_worker_update_handler (void *data)
svm_msg_q_lock_and_alloc_msg_w_ring (app_wrk->event_queue,
SESSION_MQ_CTRL_EVT_RING,
SVM_Q_WAIT, msg);
- svm_msg_q_unlock (app_wrk->event_queue);
evt = svm_msg_q_msg_data (app_wrk->event_queue, msg);
clib_memset (evt, 0, sizeof (*evt));
evt->event_type = SESSION_CTRL_EVT_REQ_WORKER_UPDATE;
wump = (session_req_worker_update_msg_t *) evt->data;
wump->session_handle = mp->handle;
- svm_msg_q_add (app_wrk->event_queue, msg, SVM_Q_WAIT);
+ svm_msg_q_add_and_unlock (app_wrk->event_queue, msg);
return;
}
@@ -268,7 +266,6 @@ session_mq_worker_update_handler (void *data)
svm_msg_q_lock_and_alloc_msg_w_ring (app_wrk->event_queue,
SESSION_MQ_CTRL_EVT_RING,
SVM_Q_WAIT, msg);
- svm_msg_q_unlock (app_wrk->event_queue);
evt = svm_msg_q_msg_data (app_wrk->event_queue, msg);
clib_memset (evt, 0, sizeof (*evt));
evt->event_type = SESSION_CTRL_EVT_WORKER_UPDATE_REPLY;
@@ -277,7 +274,7 @@ session_mq_worker_update_handler (void *data)
rmp->rx_fifo = pointer_to_uword (s->rx_fifo);
rmp->tx_fifo = pointer_to_uword (s->tx_fifo);
rmp->segment_handle = session_segment_handle (s);
- svm_msg_q_add (app_wrk->event_queue, msg, SVM_Q_WAIT);
+ svm_msg_q_add_and_unlock (app_wrk->event_queue, msg);
/*
* Retransmit messages that may have been lost