1 //----------------------------------------------------------------------
2 // Copyright (C) 2006 - 2007 by the FRESCOR consortium:
4 // Universidad de Cantabria, SPAIN
5 // University of York, UK
6 // Scuola Superiore Sant'Anna, ITALY
7 // Kaiserslautern University, GERMANY
8 // Univ. Politecnica Valencia, SPAIN
9 // Czech Technical University in Prague, CZECH REPUBLIC
11 // Thales Communication S.A. FRANCE
12 // Visual Tools S.A. SPAIN
13 // Rapita Systems Ltd UK
16 // See http://www.frescor.org
18 // The FRESCOR project (FP6/2005/IST/5-034026) is funded
19 // in part by the European Union Sixth Framework Programme
20 // The European Union is not liable of any use that may be
24 // based on previous work (FSF) done in the FIRST project
26 // Copyright (C) 2005 Mälardalen University, SWEDEN
27 // Scuola Superiore S.Anna, ITALY
28 // Universidad de Cantabria, SPAIN
29 // University of York, UK
31 // This file is part of FNA (Frescor Network Adaptation)
33 // FNA is free software; you can redistribute it and/or modify it
34 // under terms of the GNU General Public License as published by the
35 // Free Software Foundation; either version 2, or (at your option) any
36 // later version. FNA is distributed in the hope that it will be
37 // useful, but WITHOUT ANY WARRANTY; without even the implied warranty
38 // of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
39 // General Public License for more details. You should have received a
40 // copy of the GNU General Public License along with FNA; see file
41 // COPYING. If not, write to the Free Software Foundation, 675 Mass Ave,
42 // Cambridge, MA 02139, USA.
44 // As a special exception, including FNA header files in a file,
45 // instantiating FNA generics or templates, or linking other files
46 // with FNA objects to produce an executable application, does not
47 // by itself cause the resulting executable application to be covered
48 // by the GNU General Public License. This exception does not
49 // however invalidate any other reasons why the executable file might be
50 // covered by the GNU Public License.
51 // -----------------------------------------------------------------------
53 //==============================================
54 // ******** **** ** **
55 // **///// /**/** /** ****
56 // ** /**//** /** **//**
57 // ******* /** //** /** ** //**
58 // **//// /** //**/** **********
59 // ** /** //****/**//////**
60 // ** /** //***/** /**
63 // FNA(Frescor Network Adaptation layer), pronounced "efe ene a"
64 //==============================================================
69 #include "frsh.h" /* for frsh_resource_id_t, network_address_t, stream_id_t*/
70 #include <time.h> /* for timespec */
71 #include <stdbool.h> /* for bool */
72 #include "fna_configuration.h"
74 #ifdef RTEP_FNA_ENABLED
79 * @defgroup frshfna FNA Public Interface
81 * FNA is a Network adaption layer that allows to plugin new
82 * network protocols to the distributed module.
84 * It is divided in two parts:
85 * - FRSH_FNA: public types and functions for the FRSH API
86 * - FNA: private functions only used within FRSH.
90 ////////////////////////////////////////////////////////////////////
92 ////////////////////////////////////////////////////////////////////
95 * @defgroup frshfnamap FNA Mapping Functions
98 * These functions are needed to map network specific types to FRSH types.
99 * Instead of providing this mapping functions a static hardwired configuration
106 * frsh_XXXX_map_network_address()
108 * To map a XXXX protocol network address into a FRSH address.
109 * The protocol must keep this mapping consistent. Instead of using a function
110 * a hardwired mapping could be used.
112 * @param[in] resource_id The network we are referring to (a protocol
113 * could be able to handle several networks at the same time)
114 * @param[in] in_address The network address we want to map to a frsh address
115 * @param[out] out_address The FRSH abstract network address
118 * FNA_NO_ERROR: in this case it also means contract accepted \n
119 * FNA_ERR_INTERNAL_ERROR: protocol dependent internal errors \n
120 * FNA_ERR_NOT_INITIALIZED: if the protocol is not initialized \n
121 * FNA_ERR_RESOURCE_ID_INVALID: if we are not in charge of resource_id \n
122 * FNA_ERR_BAD_ARGUMENT: if pointers are NULL \n
125 #ifdef RTEP_FNA_ENABLED
126 int frsh_rtep_map_network_address(const frsh_resource_id_t resource_id,
127 const rtep_station_id_t in_address,
128 frsh_network_address_t *out_address);
132 * frsh_XXXX_map_stream_id()
134 * To map a XXXX protocol network stream, port, channel... into a FRSH stream.
135 * The protocol must keep this mapping consistent. Instead of using a function
136 * a hardwired mapping could be used.
138 * @param[in] resource_id The network we are referring to (a protocol
139 * could be able to handle several networks at the same time)
140 * @param[in] in_stream The network stream we want to map to a FRSH stream
141 * @param[out] out_stream The FRSH abstract network stream
144 * FNA_NO_ERROR: in this case it also means contract accepted \n
145 * FNA_ERR_INTERNAL_ERROR: protocol dependent internal errors \n
146 * FNA_ERR_NOT_INITIALIZED: if the protocol is not initialized \n
147 * FNA_ERR_RESOURCE_ID_INVALID: if we are not in charge of resource_id \n
148 * FNA_ERR_BAD_ARGUMENT: if pointers are NULL \n
151 #ifdef RTEP_FNA_ENABLED
152 int frsh_rtep_map_stream_id(const frsh_resource_id_t resource_id,
153 const rtep_channel_t in_stream,
154 frsh_stream_id_t *out_stream);
159 ///////////////////////////////////////////////////////////////////
160 // NEGOTIATION SERVICE PARAMETERS
161 ///////////////////////////////////////////////////////////////////
163 * @defgroup frshfnaserv FNA Negotiation Service Parameters
166 * These functions are needed to set/get the negotiation service parameters.
172 * frsh_XXXX_negotiation_messages__vres_renegotiate()
174 * This function allows the application to change the minimum period
175 * of the negotiation messages sent through the network. It is similar
176 * to the service thread but for the network messages. We do not provide
177 * budget here because the size of the negotiation messages is fixed.
179 * This change is similar to a renegotiation so a schedulability test
180 * must be done to see if the change can be accepted or not.
182 * @param[in] resource_id The network we are referring to (a protocol
183 * could be able to handle several networks at the same time)
184 * @param[in] period The new period for negotiation messages
185 * @param[out] accepted If the change has been accepted or not
188 * FNA_NO_ERROR: in this case it also means contract accepted \n
189 * FNA_ERR_INTERNAL_ERROR: protocol dependent internal errors \n
190 * FNA_ERR_NOT_INITIALIZED: if the protocol is not initialized \n
191 * FNA_ERR_RESOURCE_ID_INVALID: if we are not in charge of resource_id \n
192 * FNA_ERR_BAD_ARGUMENT: if pointers are NULL \n
193 * FNA_ERR_REJECTED_CONTRACT : if the renegotiation fails \n
196 #ifdef RTEP_FNA_ENABLED
197 int frsh_rtep_negotiation_messages_vres_renegotiate
198 (const frsh_resource_id_t resource_id,
199 const struct timespec *period);
203 * frsh_XXXX_negotiation_messages_vres_get_period()
205 * This function gets the minimum period of the negotiation messages
206 * sent through the network.
208 * @param[in] resource_id The network we are referring to (a protocol
209 * could be able to handle several networks at the same time)
210 * @param[out] period The period for negotiation messages
213 * FNA_NO_ERROR: in this case it also means contract accepted \n
214 * FNA_ERR_INTERNAL_ERROR: protocol dependent internal errors \n
215 * FNA_ERR_NOT_INITIALIZED: if the protocol is not initialized \n
216 * FNA_ERR_RESOURCE_ID_INVALID: if we are not in charge of resource_id \n
217 * FNA_ERR_BAD_ARGUMENT: if pointers are NULL \n
220 #ifdef RTEP_FNA_ENABLED
221 int frsh_rtep_negotiation_messages_vres_get_period
222 (const frsh_resource_id_t resource_id,
223 struct timespec *period);
227 * frsh_XXXX_service_thread_vres_renegotiate()
229 * This function allows the application to change the period and
230 * budget of the service thread that makes the negotiations and
231 * schedulability tests in a network.
233 * The service thread starts with a default budget and period that
234 * should be configurable
236 * @param[in] resource_id The network we are referring to (a protocol
237 * could be able to handle several networks at the same time)
238 * @param[in] budget The new budget for the service thread
239 * @param[in] period The new period for the service thread
240 * @param[out] accepted If the negotiation has been accepted or not
243 * FNA_NO_ERROR: in this case it also means contract accepted \n
244 * FNA_ERR_INTERNAL_ERROR: protocol dependent internal errors \n
245 * FNA_ERR_NOT_INITIALIZED: if the protocol is not initialized \n
246 * FNA_ERR_RESOURCE_ID_INVALID: if we are not in charge of resource_id \n
247 * FNA_ERR_BAD_ARGUMENT: if pointers are NULL \n
250 #ifdef RTEP_FNA_ENABLED
251 int frsh_rtep_service_thread_vres_renegotiate
252 (const frsh_resource_id_t resource_id,
253 const struct timespec *budget,
254 const struct timespec *period,
259 * frsh_XXXX_service_thread_vres_get_budget_and_period()
261 * This function gets the budget and period of a service thread.
263 * @param[in] resource_id The network we are referring to (a protocol
264 * could be able to handle several networks at the same time)
265 * @param[out] budget The budget of the service thread
266 * @param[out] period The period of the service thread
269 * FNA_NO_ERROR: in this case it also means contract accepted \n
270 * FNA_ERR_INTERNAL_ERROR: protocol dependent internal errors \n
271 * FNA_ERR_NOT_INITIALIZED: if the protocol is not initialized \n
272 * FNA_ERR_RESOURCE_ID_INVALID: if we are not in charge of resource_id \n
273 * FNA_ERR_BAD_ARGUMENT: if pointers are NULL \n
276 #ifdef RTEP_FNA_ENABLED
277 int frsh_rtep_service_thread_vres_get_budget_and_period
278 (const frsh_resource_id_t resource_id,
279 struct timespec *budget,
280 struct timespec *period);
285 #endif /* _FRSH_FNA_H_ */