Session layer refactoring

Major refactoring of the session layer api
- Add attatch api for application binding to the the session layer
- Simplify listen/connect calls
- Update application CLI
- Add transport endpoint to accept callback
- Associate segment manager to application and allow for multiple
  binds/connects per app

Additional:
- svm fifo cleanup
- add fifo free, format fns
- add fifo offset enqueue unit test

Change-Id: Id93a65047de61afc2bf3d58c9b544339c02065af
Signed-off-by: Florin Coras <fcoras@cisco.com>
Signed-off-by: Dave Barach <dave@barachs.net>

1 files changed, 33 insertions, 12 deletions

diff --git a/src/vnet/session/application_interface.h b/src/vnet/session/application_interface.h
index a5f2b9a6a1a..2c497531533 100644
--- a/src/vnet/session/application_interface.h
+++ b/src/vnet/session/application_interface.h
@@ -28,6 +28,27 @@ typedef enum _session_api_proto
   SESSION_PROTO_UDP
 } session_api_proto_t;
 
+typedef struct _vnet_app_attach_args_t
+{
+  u32 api_client_index;
+  u64 *options;
+  session_cb_vft_t *session_cb_vft;
+
+  /*
+   * Results
+   */
+  u8 *segment_name;
+  u32 segment_name_length;
+  u32 segment_size;
+  u64 app_event_queue_address;
+  u32 app_index;
+} vnet_app_attach_args_t;
+
+typedef struct _vnet_app_detach_args_t
+{
+  u32 app_index;
+} vnet_app_detach_args_t;
+
 typedef struct _vnet_bind_args_t
 {
   union
@@ -40,9 +61,7 @@ typedef struct _vnet_bind_args_t
     };
   };
 
-  u32 api_client_index;
-  u64 *options;
-  session_cb_vft_t *session_cb_vft;
+  u32 app_index;
 
   /*
    * Results
@@ -60,7 +79,7 @@ typedef struct _vnet_unbind_args_t
     char *uri;
     u64 handle;
   };
-  u32 api_client_index;
+  u32 app_index;
 } vnet_unbind_args_t;
 
 typedef struct _vnet_connect_args
@@ -74,10 +93,8 @@ typedef struct _vnet_connect_args
       session_api_proto_t proto;
     };
   };
-  u32 api_client_index;
+  u32 app_index;
   u32 api_context;
-  u64 *options;
-  session_cb_vft_t *session_cb_vft;
 
   /* Used for redirects */
   void *mp;
@@ -86,12 +103,13 @@ typedef struct _vnet_connect_args
 typedef struct _vnet_disconnect_args_t
 {
   u64 handle;
-  u32 api_client_index;
+  u32 app_index;
 } vnet_disconnect_args_t;
 
-/* Bind / connect options */
+/* Application attach options */
 typedef enum
 {
+  APP_EVT_QUEUE_SIZE,
   SESSION_OPTIONS_FLAGS,
   SESSION_OPTIONS_SEGMENT_SIZE,
   SESSION_OPTIONS_ADD_SEGMENT_SIZE,
@@ -99,7 +117,7 @@ typedef enum
   SESSION_OPTIONS_TX_FIFO_SIZE,
   SESSION_OPTIONS_ACCEPT_COOKIE,
   SESSION_OPTIONS_N_OPTIONS
-} session_options_index_t;
+} app_attach_options_index_t;
 
 /** Server can handle delegated connect requests from local clients */
 #define SESSION_OPTIONS_FLAGS_USE_FIFO	(1<<0)
@@ -109,10 +127,13 @@ typedef enum
 
 #define VNET_CONNECT_REDIRECTED	123
 
+int vnet_application_attach (vnet_app_attach_args_t * a);
+int vnet_application_detach (vnet_app_detach_args_t * a);
+
 int vnet_bind_uri (vnet_bind_args_t *);
-int vnet_unbind_uri (char *uri, u32 api_client_index);
+int vnet_unbind_uri (vnet_unbind_args_t * a);
 int vnet_connect_uri (vnet_connect_args_t * a);
-int vnet_disconnect_session (u32 session_index, u32 thread_index);
+int vnet_disconnect_session (vnet_disconnect_args_t * a);
 
 int vnet_bind (vnet_bind_args_t * a);
 int vnet_connect (vnet_connect_args_t * a);