session: add support for multiple app workers

[vpp.git] / src / vnet / session / stream_session.h

diff --git a/src/vnet/session/stream_session.h b/src/vnet/session/stream_session.h
index 57d256c..567962a 100644 (file)
--- a/src/vnet/session/stream_session.h
+++ b/src/vnet/session/stream_session.h
@@ -16,7 +16,6 @@
 #ifndef SRC_VNET_SESSION_STREAM_SESSION_H_
 #define SRC_VNET_SESSION_STREAM_SESSION_H_
 
-#include <vnet/vnet.h>
 #include <svm/svm_fifo.h>
 #include <vnet/session/transport.h>
 
@@ -31,30 +30,20 @@ typedef enum
   SESSION_STATE_CONNECTING,
   SESSION_STATE_ACCEPTING,
   SESSION_STATE_READY,
-  SESSION_STATE_CONNECTING_READY,
+  SESSION_STATE_OPENED,
+  SESSION_STATE_CLOSING,
   SESSION_STATE_CLOSED,
   SESSION_STATE_N_STATES,
 } stream_session_state_t;
 
-/* TODO convert to macro once cleanup completed */
-typedef struct app_session_
+typedef struct generic_session_
 {
-  /** fifo pointers. Once allocated, these do not move */
-  svm_fifo_t *server_rx_fifo;
-  svm_fifo_t *server_tx_fifo;
-
-  /** Type */
-  session_type_t session_type;
-
-  /** State */
-  volatile u8 session_state;
-
-  /** Session index in owning pool */
-  u32 session_index;
-
-  /** Application index */
-  u32 app_index;
-} app_session_t;
+  svm_fifo_t *rx_fifo;         /**< rx fifo */
+  svm_fifo_t *tx_fifo;         /**< tx fifo */
+  session_type_t session_type; /**< session type */
+  volatile u8 session_state;   /**< session state */
+  u32 session_index;           /**< index in owning pool */
+} generic_session_t;
 
 typedef struct _stream_session_t
 {
@@ -71,8 +60,8 @@ typedef struct _stream_session_t
   /** Session index in per_thread pool */
   u32 session_index;
 
-  /** stream server pool index */
-  u32 app_index;
+  /** app worker pool index */
+  u32 app_wrk_index;
 
   u8 thread_index;
 
@@ -85,8 +74,13 @@ typedef struct _stream_session_t
   /** Transport specific */
   u32 connection_index;
 
-  /** Parent listener session if the result of an accept */
-  u32 listener_index;
+  union
+  {
+    /** Parent listener session if the result of an accept */
+    u32 listener_index;
+    /** Opaque, for general use */
+    u32 opaque;
+  };
 
     CLIB_CACHE_LINE_ALIGN_MARK (pad);
 } stream_session_t;
@@ -107,7 +101,7 @@ typedef struct local_session_
   u32 session_index;
 
   /** Server index */
-  u32 app_index;
+  u32 app_wrk_index;
 
   /** Segment index where fifos were allocated */
   u32 svm_segment_index;
@@ -119,11 +113,12 @@ typedef struct local_session_
 
   /** Has transport embedded when listener not purely local */
   session_type_t listener_session_type;
+  u32 transport_listener_index;
 
   /**
    * Client data
    */
-  u32 client_index;
+  u32 client_wrk_index;
   u32 client_opaque;
 
   u64 server_evt_q;
@@ -132,34 +127,53 @@ typedef struct local_session_
     CLIB_CACHE_LINE_ALIGN_MARK (pad);
 } local_session_t;
 
+#define foreach_session_endpoint_fields                                \
+    foreach_transport_connection_fields                                \
+    _(u8, transport_proto)                                     \
+
 typedef struct _session_endpoint
 {
-  /*
-   * Network specific
-   */
 #define _(type, name) type name;
-  foreach_transport_connection_fields
+  foreach_session_endpoint_fields
 #undef _
-    /*
-     * Session specific
-     */
-  u8 transport_proto;  /**< transport protocol for session */
 } session_endpoint_t;
 
-#define SESSION_IP46_ZERO              \
-{                                      \
-    .ip6 = {                           \
-       { 0, 0, },                      \
-    },                                 \
+typedef struct _session_endpoint_extended
+{
+#define _(type, name) type name;
+  foreach_session_endpoint_fields
+#undef _
+  u32 app_wrk_index;
+  u32 opaque;
+  u8 *hostname;
+} session_endpoint_extended_t;
+
+#define SESSION_IP46_ZERO                      \
+{                                              \
+    .ip6 = {                                   \
+       { 0, 0, },                              \
+    },                                         \
+}
+#define SESSION_ENDPOINT_NULL                  \
+{                                              \
+  .sw_if_index = ENDPOINT_INVALID_INDEX,       \
+  .ip = SESSION_IP46_ZERO,                     \
+  .fib_index = ENDPOINT_INVALID_INDEX,         \
+  .is_ip4 = 0,                                 \
+  .port = 0,                                   \
+  .transport_proto = 0,                                \
 }
-#define SESSION_ENDPOINT_NULL          \
-{                                      \
+#define SESSION_ENDPOINT_EXT_NULL              \
+{                                              \
   .sw_if_index = ENDPOINT_INVALID_INDEX,       \
-  .ip = SESSION_IP46_ZERO,             \
-  .fib_index = ENDPOINT_INVALID_INDEX, \
-  .is_ip4 = 0,                         \
-  .port = 0,                           \
-  .transport_proto = 0,                        \
+  .ip = SESSION_IP46_ZERO,                     \
+  .fib_index = ENDPOINT_INVALID_INDEX,         \
+  .is_ip4 = 0,                                 \
+  .port = 0,                                   \
+  .transport_proto = 0,                                \
+  .app_wrk_index = ENDPOINT_INVALID_INDEX,     \
+  .opaque = ENDPOINT_INVALID_INDEX,            \
+  .hostname = 0,                               \
 }
 
 #define session_endpoint_to_transport(_sep) ((transport_endpoint_t *)_sep)