/* * Copyright (c) 2017 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef SRC_VNET_SESSION_APPLICATION_H_ #define SRC_VNET_SESSION_APPLICATION_H_ #include <vnet/vnet.h> #include <vnet/session/session.h> #include <vnet/session/segment_manager.h> typedef enum { APP_SERVER, APP_CLIENT, APP_N_TYPES } application_type_t; typedef struct _stream_session_cb_vft { /** Notify server of new segment */ int (*add_segment_callback) (u32 api_client_index, const u8 * seg_name, u32 seg_size); /** Notify server of newly accepted session */ int (*session_accept_callback) (stream_session_t * new_session); /* Connection request callback */ int (*session_connected_callback) (u32 app_index, u32 opaque, stream_session_t * s, u8 code); /** Notify app that session is closing */ void (*session_disconnect_callback) (stream_session_t * s); /** Notify app that session was reset */ void (*session_reset_callback) (stream_session_t * s); /* Direct RX callback, for built-in servers */ int (*builtin_server_rx_callback) (stream_session_t * session); /* Redirect connection to local server */ int (*redirect_connect_callback) (u32 api_client_index, void *mp); } session_cb_vft_t; typedef struct _application { /** Index in server pool */ u32 index; /** Flags */ u32 flags; /* * Binary API interface to external app */ /** Binary API connection index, ~0 if internal */ u32 api_client_index; /** Application listens for events on this svm queue */ unix_shared_memory_queue_t *event_queue; /* * Callbacks: shoulder-taps for the server/client */ session_cb_vft_t cb_fns; /* * svm segment management */ u32 connects_seg_manager; /** Lookup tables for listeners. Value is segment manager index */ uword *listeners_table; /** First segment manager has in the the first segment the application's * event fifo. Depending on what the app does, it may be either used for * a listener or for connects. */ u32 first_segment_manager; u8 first_segment_manager_in_use; /** Segment manager properties. Shared by all segment managers */ segment_manager_properties_t sm_properties; } application_t; #define APP_INVALID_SEGMENT_MANAGER_INDEX ((u32) ~0) application_t *application_new (); int application_init (application_t * app, u32 api_client_index, u64 * options, session_cb_vft_t * cb_fns); void application_del (application_t * app); application_t *application_get (u32 index); application_t *application_get_if_valid (u32 index); application_t *application_lookup (u32 api_client_index); u32 application_get_index (application_t * app); int application_start_listen (application_t * app, session_type_t session_type, transport_endpoint_t * tep, u64 * handle); int application_stop_listen (application_t * srv, u64 handle); int application_open_session (application_t * app, session_type_t sst, transport_endpoint_t * tep, u32 api_context); int application_api_queue_is_full (application_t * app); segment_manager_t *application_get_listen_segment_manager (application_t * app, stream_session_t * s); segment_manager_t *application_get_connect_segment_manager (application_t * app); int application_is_proxy (application_t * app); int application_add_segment_notify (u32 app_index, u32 fifo_segment_index); #endif /* SRC_VNET_SESSION_APPLICATION_H_ */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */