2 * Copyright (c) 2016 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
20 #include <vnet/udp/udp.h>
21 #include <vnet/session/session.h>
22 #include <vnet/session/application_interface.h>
24 /** per-worker built-in server copy buffers */
28 builtin_session_create_callback (stream_session_t * s)
30 /* Simple version: declare session ready-to-go... */
31 s->session_state = SESSION_STATE_READY;
36 builtin_session_disconnect_callback (stream_session_t * s)
38 stream_session_disconnect (s);
42 builtin_server_rx_callback (stream_session_t * s)
44 svm_fifo_t *rx_fifo, *tx_fifo;
45 u32 this_transfer, max_deq, max_enq;
48 session_fifo_event_t evt;
49 unix_shared_memory_queue_t *q;
51 my_copy_buffer = copy_buffers[s->thread_index];
52 rx_fifo = s->server_rx_fifo;
53 tx_fifo = s->server_tx_fifo;
55 max_deq = svm_fifo_max_dequeue (rx_fifo);
56 max_enq = svm_fifo_max_enqueue (tx_fifo);
57 this_transfer = max_enq < max_deq ? max_enq : max_deq;
59 vec_validate (my_copy_buffer, this_transfer - 1);
60 _vec_len (my_copy_buffer) = this_transfer;
62 actual_transfer = svm_fifo_dequeue_nowait (rx_fifo, this_transfer,
64 ASSERT (actual_transfer == this_transfer);
65 actual_transfer = svm_fifo_enqueue_nowait (tx_fifo, this_transfer,
67 ASSERT (actual_transfer == this_transfer);
69 copy_buffers[s->thread_index] = my_copy_buffer;
71 if (svm_fifo_set_event (tx_fifo))
73 /* Fabricate TX event, send to ourselves */
75 evt.event_type = FIFO_EVENT_APP_TX;
77 q = session_manager_get_vpp_event_queue (s->thread_index);
78 unix_shared_memory_queue_add (q, (u8 *) & evt,
79 0 /* do wait for mutex */ );
86 static session_cb_vft_t builtin_server = {
87 .session_accept_callback = builtin_session_create_callback,
88 .session_disconnect_callback = builtin_session_disconnect_callback,
89 .builtin_server_rx_callback = builtin_server_rx_callback
94 attach_builtin_uri_server ()
96 vnet_app_attach_args_t _a, *a = &_a;
98 u32 segment_name_length;
101 segment_name_length = ARRAY_LEN (segment_name);
103 memset (a, 0, sizeof (*a));
104 memset (options, 0, sizeof (options));
106 a->api_client_index = ~0;
107 a->segment_name = segment_name;
108 a->segment_name_length = segment_name_length;
109 a->session_cb_vft = &builtin_server;
111 options[SESSION_OPTIONS_ACCEPT_COOKIE] = 0x12345678;
112 options[SESSION_OPTIONS_SEGMENT_SIZE] = (2 << 30); /*$$$$ config / arg */
113 options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_BUILTIN_APP;
114 options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = 1024;
116 a->options = options;
118 if (vnet_application_attach (a))
124 bind_builtin_uri_server (u8 * uri)
126 vnet_bind_args_t _a, *a = &_a;
129 rv = attach_builtin_uri_server ();
133 memset (a, 0, sizeof (*a));
134 a->uri = (char *) uri;
135 a->app_index = ~0; /* built-in server */
137 rv = vnet_bind_uri (a);
143 unbind_builtin_uri_server (u8 * uri)
145 vnet_unbind_args_t _a, *a = &_a;
148 a->uri = (char *) uri;
150 return vnet_unbind_uri (a);
153 static clib_error_t *
154 builtin_server_init (vlib_main_t * vm)
156 vlib_thread_main_t *vtm = vlib_get_thread_main ();
159 num_threads = 1 /* main thread */ + vtm->n_threads;
161 vec_validate (copy_buffers, num_threads - 1);
165 VLIB_INIT_FUNCTION (builtin_server_init);
167 static clib_error_t *
168 builtin_uri_bind_command_fn (vlib_main_t * vm,
169 unformat_input_t * input,
170 vlib_cli_command_t * cmd)
175 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
177 if (unformat (input, "uri %s", &uri))
184 return clib_error_return (0, "uri to bind not specified...");
186 rv = bind_builtin_uri_server (uri);
196 return clib_error_return (0, "bind_uri_server returned %d", rv);
204 VLIB_CLI_COMMAND (builtin_uri_bind_command, static) =
206 .path = "builtin uri bind",
207 .short_help = "builtin uri bind",
208 .function = builtin_uri_bind_command_fn,
212 static clib_error_t *
213 builtin_uri_unbind_command_fn (vlib_main_t * vm,
214 unformat_input_t * input,
215 vlib_cli_command_t * cmd)
220 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
222 if (unformat (input, "uri %s", &uri))
229 return clib_error_return (0, "uri to unbind not specified...");
231 rv = unbind_builtin_uri_server (uri);
241 return clib_error_return (0, "unbind_uri_server returned %d", rv);
249 VLIB_CLI_COMMAND (builtin_uri_unbind_command, static) =
251 .path = "builtin uri unbind",
252 .short_help = "builtin uri unbind",
253 .function = builtin_uri_unbind_command_fn,
258 * fd.io coding-style-patch-verification: ON
261 * eval: (c-set-style "gnu")