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-rw-r--r--src/vnet/session/application.h7
-rw-r--r--src/vnet/session/application_worker.c50
-rw-r--r--src/vnet/session/segment_manager.c19
-rw-r--r--src/vnet/session/segment_manager.h8
4 files changed, 77 insertions, 7 deletions
diff --git a/src/vnet/session/application.h b/src/vnet/session/application.h
index 377ea1ef4ac..b6f957ab871 100644
--- a/src/vnet/session/application.h
+++ b/src/vnet/session/application.h
@@ -66,6 +66,12 @@ typedef struct app_worker_
/** Per transport proto hash tables of half-open connection handles */
uword **half_open_table;
+
+ /** Protects detached seg managers */
+ clib_spinlock_t detached_seg_managers_lock;
+
+ /** Vector of detached listener segment managers */
+ u32 *detached_seg_managers;
} app_worker_t;
typedef struct app_worker_map_
@@ -292,6 +298,7 @@ int app_worker_lock_and_send_event (app_worker_t * app, session_t * s,
u8 evt_type);
session_t *app_worker_proxy_listener (app_worker_t * app, u8 fib_proto,
u8 transport_proto);
+void app_worker_del_detached_sm (app_worker_t * app_wrk, u32 sm_index);
u8 *format_app_worker (u8 * s, va_list * args);
u8 *format_app_worker_listener (u8 * s, va_list * args);
u8 *format_crypto_engine (u8 * s, va_list * args);
diff --git a/src/vnet/session/application_worker.c b/src/vnet/session/application_worker.c
index f9740a300c2..17aeb57d49b 100644
--- a/src/vnet/session/application_worker.c
+++ b/src/vnet/session/application_worker.c
@@ -33,6 +33,7 @@ app_worker_alloc (application_t * app)
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);
APP_DBG ("New app %v worker %u", app->name, app_wrk->wrk_index);
return app_wrk;
}
@@ -131,17 +132,26 @@ app_worker_free (app_worker_t * app_wrk)
vec_free (app_wrk->half_open_table);
vec_free (handles);
+ /*
+ * Detached listener segment managers cleanup
+ */
+ for (i = 0; i < vec_len (app_wrk->detached_seg_managers); i++)
+ {
+ 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);
+
/* If first segment manager is used by a listener that recently
* stopped listening, mark it as detached */
if (app_wrk->first_segment_manager != app_wrk->connects_seg_manager
- && (sm = segment_manager_get_if_valid (app_wrk->first_segment_manager)))
+ && (sm = segment_manager_get_if_valid (app_wrk->first_segment_manager))
+ && !segment_manager_app_detached (sm))
{
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);
+ segment_manager_init_free (sm);
}
if (CLIB_DEBUG)
@@ -254,6 +264,29 @@ app_worker_start_listen (app_worker_t * app_wrk,
}
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;
@@ -279,6 +312,13 @@ app_worker_stop_listen_session (app_worker_t * app_wrk, session_t * ls)
segment_manager_app_detach (sm);
if (!segment_manager_has_fifos (sm))
segment_manager_free (sm);
+ else
+ {
+ /* 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);
diff --git a/src/vnet/session/segment_manager.c b/src/vnet/session/segment_manager.c
index 7734a3eef81..4c4f0b4b3cf 100644
--- a/src/vnet/session/segment_manager.c
+++ b/src/vnet/session/segment_manager.c
@@ -67,13 +67,13 @@ segment_manager_props_init (segment_manager_props_t * props)
u8
segment_manager_app_detached (segment_manager_t * sm)
{
- return (sm->app_wrk_index == SEGMENT_MANAGER_INVALID_APP_INDEX);
+ return (sm->flags & SEG_MANAGER_F_DETACHED);
}
void
segment_manager_app_detach (segment_manager_t * sm)
{
- sm->app_wrk_index = SEGMENT_MANAGER_INVALID_APP_INDEX;
+ sm->flags |= SEG_MANAGER_F_DETACHED;
}
always_inline u32
@@ -425,6 +425,18 @@ segment_manager_init (segment_manager_t * sm)
return 0;
}
+void
+segment_manager_cleanup_detached_listener (segment_manager_t * sm)
+{
+ app_worker_t *app_wrk;
+
+ app_wrk = app_worker_get_if_valid (sm->app_wrk_index);
+ if (!app_wrk)
+ return;
+
+ app_worker_del_detached_sm (app_wrk, segment_manager_index (sm));
+}
+
/**
* Cleanup segment manager.
*/
@@ -437,6 +449,9 @@ segment_manager_free (segment_manager_t * sm)
ASSERT (!segment_manager_has_fifos (sm)
&& segment_manager_app_detached (sm));
+ if (sm->flags & SEG_MANAGER_F_DETACHED_LISTENER)
+ segment_manager_cleanup_detached_listener (sm);
+
/* If we have empty preallocated segments that haven't been removed, remove
* them now. Apart from that, the first segment in the first segment manager
* is not removed when all fifos are removed. It can only be removed when
diff --git a/src/vnet/session/segment_manager.h b/src/vnet/session/segment_manager.h
index 1710b7b7697..1e6b14d2586 100644
--- a/src/vnet/session/segment_manager.h
+++ b/src/vnet/session/segment_manager.h
@@ -42,6 +42,12 @@ typedef struct _segment_manager_props
u8 pct_first_alloc; /**< pct of fifo size to alloc */
} segment_manager_props_t;
+typedef enum seg_manager_flag_
+{
+ SEG_MANAGER_F_DETACHED = 1 << 0,
+ SEG_MANAGER_F_DETACHED_LISTENER = 1 << 1,
+} seg_manager_flag_t;
+
typedef struct _segment_manager
{
/** Pool of segments allocated by this manager */
@@ -65,6 +71,8 @@ typedef struct _segment_manager
*/
svm_msg_q_t *event_queue;
+ u8 flags;
+
u32 max_fifo_size;
u8 high_watermark;
u8 low_watermark;