1 #define CONFIGURE_FWP_MY_STREAM_ID 3000
2 #define CONFIGURE_FWP_MNGR_ADDR "127.0.0.1"
4 #include "fwp_confdefs.h"
7 #include "fwp_contract_table.h"
8 #include "fwp_participant_table.h"
9 #include "fwp_admctrl.h"
13 #define BUFFSIZE FWP_MTU
15 /* buffer and socket for incomming message */
16 static unsigned char buffer[FWP_MTU];
18 /* Admission control test */
19 fwp_admctrl_test_t fwp_admctrl_test = &fwp_admctrl_stupid;
24 * Function waits for remote or local message
26 * @msgb received message
28 * On success, it returns 0 and the pointer to received message in msgb parameter.
29 * On error, it returns negative error code
32 int fwp_mngr_input(struct fwp_msgb **pmsgb)
34 struct fwp_msgb *msgb;
37 FWP_DEBUG("Waiting for messages\n");
38 /* TODO: consider to replace with fwp_mngt_recv call */
39 size = fwp_recv(fwp_participant_this->epointd, buffer, BUFFSIZE, 0);
41 /* For future: fwp_socket could be allocated behind data in msgb*/
42 if (!(msgb = fwp_msgb_alloc(size))) {
43 perror("No memory available.\n");
46 /*memcpy(fwp_msgb_put(msgb, len), buffer, len); */
48 fwp_msgb_put(msgb, size);
54 void fwp_mngr_hello(fwp_msgb_t *msgb, fwp_participant_id_t participant_id)
56 fwp_participant_info_t participant_info, my_info;
57 fwp_participant_t *participant;
58 fwp_endpoint_attr_t attr;
60 FWP_DEBUG("Received HELLO msg from nodeid= %d appid= %d\n",
61 participant_id.node_id, participant_id.app_id);
63 fwp_endpoint_attr_init(&attr);
64 fwp_endpoint_attr_setreliability(&attr, FWP_MNGT_RELIABILITY);
65 /* Create a new participant */
66 fwp_msg_hello_out(msgb->data, &participant_info);
67 participant = fwp_participant_create(&participant_info);
68 fwp_mngt_service_vres_create(&participant->vresd);
69 fwp_send_endpoint_create(participant->id.node_id, participant->stream_id,
70 &attr, &participant->epointd);
71 fwp_send_endpoint_bind(participant->epointd, participant->vresd);
72 fwp_contract_table_init(&participant->contract_table);
74 /* Insert participant into table */
75 fwp_participant_table_insert(participant);
77 /* Send back hello msg with mngr`s info */
78 /* prepare hello message */
79 fwp_msgb_reset_data(msgb);
80 fwp_msgb_reserve(msgb, sizeof(struct fwp_msg_header));
82 my_info.id = fwp_participant_this->id;
83 my_info.stream_id = fwp_participant_this->stream_id;
85 fwp_msg_hello_in(msgb->tail, &my_info);
86 fwp_msgb_put(msgb, sizeof(struct fwp_msg_hello));
88 /* Send hello to manager */
89 fwp_mngt_send(FWP_MSG_HELLO, msgb,
90 fwp_participant_this, participant);
92 FWP_DEBUG("Sent HELLO msg from nodeid= %d appid= %d\n",
93 participant_id.node_id, participant_id.app_id);
97 fwp_mngr_contract_reserve(fwp_msgb_t *msgb, fwp_participant_id_t participant_id)
99 fwp_participant_t *participant;
100 fwp_contract_data_t *contdata;
102 /* Find participant */
103 if (!(participant = fwp_participant_table_find(&participant_id))){
107 contdata = fwp_contract_data_new();
109 /* Extract contract header */
110 fwp_msg_contracthdr_out(msgb->data, &contdata->id, &contdata->status);
111 fwp_msgb_pull(msgb, sizeof(struct fwp_msg_contracthdr));
112 /* Extract contract params */
113 fwp_msg_contract_out(msgb->data, &contdata->contract);
114 fwp_msgb_pull(msgb, sizeof(struct fwp_msg_contract));
116 /*launch admission test */
117 fwp_admctrl_test(contdata);
120 msgb = fwp_msgb_alloc(sizeof(struct fwp_msg_header) +
121 sizeof(struct fwp_msg_contract) +
122 sizeof(struct fwp_msg_vres_params));
123 fwp_msgb_reserve(msgb,sizeof(struct fwp_msg_header));
125 /*Add contract header*/
126 fwp_msg_contracthdr_in(msgb->tail, contdata->id, contdata->status);
127 fwp_msgb_put(msgb, sizeof(struct fwp_msg_contracthdr));
128 /* Add contract params */
129 /* No needed to send back if spare capacity is not considered
130 * fwp_msg_contract_in(msgb->tail, &contdata->contract);
131 * fwp_msgb_put(msgb, sizeof(struct fwp_msg_contract));
134 /*Send back contract reservation */
135 if (contdata->status == FWP_CONT_RESERVED) {
136 fwp_msg_vres_params_in(msgb->tail, &contdata->vres_params);
137 FWP_DEBUG("Sent vres params budget=%d period=%d ac=%d\n",
138 contdata->vres_params.budget,
139 contdata->vres_params.period_usec,
140 contdata->vres_params.ac_id);
141 fwp_msgb_put(msgb, sizeof(struct fwp_msg_vres_params));
142 /* Add contract to contract table */
143 fwp_contract_table_insert(&participant->contract_table,contdata);
144 FWP_DEBUG("Contract id=%d stored in table\n", contdata->id);
150 fwp_mngt_send(FWP_MSG_RESERVE, msgb,
151 fwp_participant_this, participant);
156 fwp_mngr_contract_commit(fwp_msgb_t *msgb, fwp_participant_id_t participant_id)
158 fwp_participant_t *participant;
159 fwp_contract_data_t *contdata;
160 fwp_contract_id_t id;
161 fwp_contract_status_t status;
163 /* Find participant */
164 if (!(participant = fwp_participant_table_find(&participant_id))){
168 fwp_msg_contracthdr_out(msgb->data, &id, &status);
169 fwp_msgb_pull(msgb, sizeof(struct fwp_msg_contracthdr));
170 FWP_DEBUG("Contract id=%d to commit\n", id);
172 contdata = fwp_contract_table_find(&participant->contract_table, id);
173 contdata->status = FWP_CONT_NEGOTIATED;
179 fwp_mngr_contract_cancel(fwp_msgb_t *msgb, fwp_participant_id_t participant_id)
181 fwp_participant_t *participant;
182 fwp_contract_data_t *contdata;
183 fwp_contract_id_t id;
184 fwp_contract_status_t status;
186 /* Find participant */
187 if (!(participant = fwp_participant_table_find(&participant_id))){
191 fwp_msg_contracthdr_out(msgb->data, &id, &status);
192 fwp_msgb_pull(msgb, sizeof(struct fwp_msg_contracthdr));
194 contdata = fwp_contract_table_find(&participant->contract_table, id);
195 contdata->status = FWP_CONT_NOTNEGOTIATED;
196 /* release vres - success only for local vres */
197 fwp_vres_destroy(contdata->vresd);
198 /* delete contract from contract table */
199 fwp_contract_table_delete(&participant->contract_table, contdata);
200 fwp_contract_destroy(contdata);
202 FWP_DEBUG("Contract id=%d to canceled\n", id);
207 void fwp_mngr_msg_handler(fwp_msgb_t *msgb)
209 fwp_msg_type_t msg_type;
210 fwp_participant_id_t participant_id;
212 fwp_msg_header_out(msgb->data, &msg_type, &participant_id);
213 fwp_msgb_pull(msgb, sizeof(struct fwp_msg_header));
217 FWP_DEBUG("Message HELLO received from nodeid = %d "
218 "appid = %d\n", participant_id.node_id,
219 participant_id.app_id);
220 fwp_mngr_hello(msgb, participant_id);
223 case FWP_MSG_RESERVE:
224 FWP_DEBUG("Message RESERVE received from nodeid = %d "
225 "appid = %d\n", participant_id.node_id,
226 participant_id.app_id);
227 fwp_mngr_contract_reserve(msgb, participant_id);
231 FWP_DEBUG("Message COMMIT received from nodeid = %d "
232 "appid = %d\n", participant_id.node_id,
233 participant_id.app_id);
234 fwp_mngr_contract_commit(msgb, participant_id);
238 FWP_DEBUG("Message CANCEL received from nodeid = %d "
239 "appid = %d\n", participant_id.node_id,
240 participant_id.app_id);
241 fwp_mngr_contract_cancel(msgb, participant_id);
245 printf("Invalid message\n.");
250 void fwp_mngr_main_loop()
252 struct fwp_msgb *msgb;
254 /* start admission control thread */
255 while (1 /*exit_flag*/){
256 fwp_mngr_input(&msgb);
258 fwp_mngr_msg_handler(msgb);
259 FWP_DEBUG("Mngr waiting for next msg.\n");
266 fwp_participant_info_t my_info;
269 if ((rv = fwp_endpoint_table_init(fwp_configuration.max_endpoints)) ||
270 (rv = fwp_vres_table_init(fwp_configuration.max_vres))) {
275 /* Create fwp_participant_this */
276 my_info.id.node_id = inet_addr("127.0.0.1");
277 my_info.id.app_id = getpid();
278 my_info.stream_id = FWP_MNGR_STREAM_ID;
280 fwp_participant_this = fwp_participant_create(&my_info);
281 fwp_participant_mngr = fwp_participant_this;
282 fwp_receive_endpoint_create(my_info.stream_id, 0,
283 &fwp_participant_this->epointd);
284 FWP_DEBUG("Participant_this created node_id id= %d stream id= %d\n",
285 fwp_participant_this->id.node_id,
286 fwp_participant_this->stream_id);
295 fprintf(stderr,"FWP manager initialization failed.\n");
299 fwp_mngr_main_loop();