3 /* amok_bandwidth - Bandwidth tests facilities */
5 /* Copyright (c) 2003, 2004 Martin Quinson. All rights reserved. */
7 /* This program is free software; you can redistribute it and/or modify it
8 * under the terms of the license (GNU LGPL) which comes with this package. */
14 #include "gras/messages.h"
15 #include "amok/bandwidth.h"
20 * Request for a BW experiment.
21 * If host==NULL, it should be between the sender and the receiver.
22 * If not, it should be between between the receiver and @host (3-tiers).
25 xbt_host_t host; /* host+raw socket to use */
26 unsigned int buf_size;
27 unsigned int exp_size;
28 unsigned int msg_size;
34 * Result of a BW experiment (payload when answering).
35 * if err.msg != NULL, it wasn't sucessful. Check err.msg and err.code to see why.
40 unsigned int timestamp;
49 * Description of a saturation experiment (payload asking some host to collaborate for that)
52 xbt_host_t host; /* host+raw socket to use */
53 unsigned int msg_size;
57 /* Prototypes of local callbacks */
58 int amok_bw_cb_bw_handshake(gras_socket_t *expeditor,
60 int amok_bw_cb_bw_request(gras_socket_t *expeditor,
63 int amok_bw_cb_sat_start(gras_socket_t *expeditor,
65 int amok_bw_cb_sat_begin(gras_socket_t *expeditor,
69 void amok_bw_init(void) {
71 gras_datadesc_type_t *bw_request_desc, *bw_res_desc, *sat_request_desc;
75 /* Build the datatype descriptions */
76 bw_request_desc = gras_datadesc_struct("bw_request_t");
77 gras_datadesc_struct_append(bw_request_desc,"host",gras_datadesc_by_name("xbt_host_t*"));
78 gras_datadesc_struct_append(bw_request_desc,"buf_size",gras_datadesc_by_name("unsigned int"));
79 gras_datadesc_struct_append(bw_request_desc,"exp_size",gras_datadesc_by_name("unsigned int"));
80 gras_datadesc_struct_append(bw_request_desc,"msg_size",gras_datadesc_by_name("unsigned int"));
81 gras_datadesc_struct_close(bw_request_desc);
82 bw_request_desc = gras_datadesc_ref("bw_request_t*",bw_request_desc);
84 bw_res_desc = gras_datadesc_struct("bw_res_t");
85 gras_datadesc_struct_append(bw_res_desc,"err",gras_datadesc_by_name("amok_remoterr_t"));
86 gras_datadesc_struct_append(bw_res_desc,"timestamp",gras_datadesc_by_name("unsigned int"));
87 gras_datadesc_struct_append(bw_res_desc,"seconds",gras_datadesc_by_name("double"));
88 gras_datadesc_struct_append(bw_res_desc,"bw",gras_datadesc_by_name("double"));
89 gras_datadesc_struct_close(bw_res_desc);
90 bw_res_desc = gras_datadesc_ref("bw_res_t*",bw_res_desc);
92 sat_request_desc = gras_datadesc_struct("sat_request_desc");
93 gras_datadesc_struct_append(sat_request_desc,"host",gras_datadesc_by_name("xbt_host_t"));
94 gras_datadesc_struct_append(sat_request_desc,"msg_size",gras_datadesc_by_name("unsigned int"));
95 gras_datadesc_struct_append(sat_request_desc,"timeout",gras_datadesc_by_name("unsigned int"));
96 gras_datadesc_struct_close(sat_request_desc);
97 sat_request_desc = gras_datadesc_ref("sat_request_t*",sat_request_desc);
99 /* Register the bandwidth messages */
100 gras_msgtype_declare("BW request", bw_request_desc);
101 gras_msgtype_declare("BW result", bw_res_desc);
102 gras_msgtype_declare("BW handshake", bw_request_desc);
103 gras_msgtype_declare("BW handshake ACK", bw_request_desc);
105 /* Register the saturation messages */
106 gras_msgtype_declare("SAT start", sat_request_desc);
107 gras_msgtype_declare("SAT started", gras_datadesc_by_name("amok_remoterr_t"));
108 gras_msgtype_declare("SAT begin", sat_request_desc);
109 gras_msgtype_declare("SAT begun", gras_datadesc_by_name("amok_remoterr_t"));
110 gras_msgtype_declare("SAT end", NULL);
111 gras_msgtype_declare("SAT ended", gras_datadesc_by_name("amok_remoterr_t"));
112 gras_msgtype_declare("SAT stop", NULL);
113 gras_msgtype_declare("SAT stopped", gras_datadesc_by_name("amok_remoterr_t"));
115 /* Register the callbacks */
116 gras_cb_register(gras_msgtype_by_name("BW request"),
117 &amok_bw_cb_bw_request);
118 gras_cb_register(gras_msgtype_by_name("BW handshake"),
119 &amok_bw_cb_bw_handshake);
121 gras_cb_register(gras_msgtype_by_name("SAT start"),
122 &amok_bw_cb_sat_start);
123 gras_cb_register(gras_msgtype_by_name("SAT begin"),
124 &amok_bw_cb_sat_begin);
127 /* ***************************************************************************
129 * ***************************************************************************/
130 /* Function to do a test from local to given host */
134 * Conduct a test between the local host and @peer, and
135 * report the result in last args
137 xbt_error_t amok_bw_test(gras_socket_t *peer,
138 unsigned int bufSize,unsigned int expSize,unsigned int msgSize,
139 /*OUT*/ double *sec, double *bw) {
140 gras_socket_t *rawIn,*rawOut;
143 bw_request_t *request;
146 for (port = 5000, errcode = system_error;
147 errcode == system_error;
148 errcode = gras_socket_server_ext(++port,bufSize,1,&rawIn));
149 if (errcode != no_error) {
150 ERROR1("Error %s encountered while opening a raw socket\n",
151 xbt_error_name(errcode));
155 request=xbt_new(bw_request_t);
156 request->bufSize=bufSize;
157 request->expSize=expSize;
158 request->msgSize=msgSize;
159 request->host.name = NULL;
160 request->host.port = gras_socket_peer_port(rawIn);
162 if ((errcode=gras_send(peer,gras_msgtype_by_name("BW handshake"),request))) {
163 ERROR1("Error %s encountered while sending the request.", xbt_error_name(errcode));
164 gras_sock_close(sock);
167 if ((errcode=gras_msg_wait(60,GRASMSG_BW_HANDSHAKED,&answer))) {
168 fprintf(stderr,"grasbw_test(): Error %s encountered while waiting for the answer.\n",
169 xbt_error_name(errcode));
170 gras_sock_close(sock);
173 if((errcode=gras_rawsock_client_open(to_name,gras_msg_ctn(answer,0,0,BwExp_t).port,
175 fprintf(stderr,"grasbw_test(): Error %s encountered while opening the raw socket to %s:%d\n",
176 xbt_error_name(errcode),to_name,gras_msg_ctn(answer,0,0,BwExp_t).port);
181 if ((errcode=gras_rawsock_send(rawOut,expSize,msgSize)) ||
182 (errcode=gras_rawsock_recv(rawIn,1,1,120))) {
183 fprintf(stderr,"grasbw_test(): Error %s encountered while sending the experiment.\n",
184 xbt_error_name(errcode));
185 gras_rawsock_close(rawOut);
186 gras_rawsock_close(rawIn);
189 *sec = gras_time() - *sec;
190 *bw = ((double)expSize /* 8.0*/) / *sec / (1024.0 *1024.0);
192 gras_rawsock_close(rawIn);
193 gras_rawsock_close(rawOut);
194 gras_sock_close(sock);
195 gras_msg_free(answer);
202 /* Callback to the GRASMSG_BW_HANDSHAKE message:
203 opens a server raw socket,
204 indicate its port in an answer GRASMSG_BW_HANDSHAKED message,
205 receive the corresponding data on the raw socket,
208 int grasbw_cbBWHandshake(gras_msg_t *msg) {
209 gras_rawsock_t *rawIn,*rawOut;
213 if ((errcode=gras_rawsock_server_open(6666,8000,gras_msg_ctn(msg,0,0,BwExp_t).bufSize,&rawIn))) {
214 fprintf(stderr,"grasbw_cbHandshake(): Error %s encountered while opening a raw socket\n",
215 xbt_error_name(errcode));
218 if ((errcode=gras_rawsock_client_open(gras_sock_get_peer_name(msg->sock),gras_msg_ctn(msg,0,0,BwExp_t).port,
219 gras_msg_ctn(msg,0,0,BwExp_t).bufSize,&rawOut))) {
220 fprintf(stderr,"grasbw_cbHandshake(): Error %s encountered while opening a raw socket\n",
221 xbt_error_name(errcode));
224 if (!(ans=(BwExp_t *)malloc(sizeof(BwExp_t)))) {
225 fprintf(stderr,"grasbw_cbHandshake(): Malloc error.\n");
226 gras_rawsock_close(rawIn);
227 gras_rawsock_close(rawOut);
230 ans->bufSize=gras_msg_ctn(msg,0,0,BwExp_t).bufSize;
231 ans->expSize=gras_msg_ctn(msg,0,0,BwExp_t).expSize;
232 ans->msgSize=gras_msg_ctn(msg,0,0,BwExp_t).msgSize;
233 ans->port=gras_rawsock_get_peer_port(rawIn);
234 /* fprintf(stderr,"grasbw_cbHandshake. bufSize=%d expSize=%d msgSize=%d port=%d\n",
235 ans->bufSize,ans->expSize,ans->msgSize,ans->port);*/
237 if ((errcode=gras_msg_new_and_send(msg->sock,GRASMSG_BW_HANDSHAKED, 1,
239 fprintf(stderr,"grasbw_cbHandshake(): Error %s encountered while sending the answer.\n",
240 xbt_error_name(errcode));
241 gras_rawsock_close(rawIn);
242 gras_rawsock_close(rawOut);
246 if ((errcode=gras_rawsock_recv(rawIn,
247 gras_msg_ctn(msg,0,0,BwExp_t).expSize,
248 gras_msg_ctn(msg,0,0,BwExp_t).msgSize,
250 (errcode=gras_rawsock_send(rawOut,1,1))) {
251 fprintf(stderr,"grasbw_cbHandshake(): Error %s encountered while receiving the experiment.\n",
252 xbt_error_name(errcode));
253 gras_rawsock_close(rawIn);
254 gras_rawsock_close(rawOut);
258 gras_rawsock_close(rawIn);
259 gras_rawsock_close(rawOut);
263 /* function to request a BW test between to external hosts */
264 xbt_error_t grasbw_request(const char* from_name,unsigned int from_port,
265 const char* to_name,unsigned int to_port,
266 unsigned int bufSize,unsigned int expSize,unsigned int msgSize,
267 /*OUT*/ double *sec, double*bw) {
276 if((errcode=gras_sock_client_open(from_name,from_port,&sock))) {
277 fprintf(stderr,"grasbw_request(): Error %s encountered while contacting the actuator\n",
278 xbt_error_name(errcode));
281 if (!(request=(BwExp_t *)malloc(sizeof(BwExp_t))) ||
282 !(target=(msgHost_t*)malloc(sizeof(msgHost_t)))) {
283 fprintf(stderr,"grasbw_test(): Malloc error\n");
284 gras_sock_close(sock);
288 request->bufSize=bufSize;
289 request->expSize=expSize;
290 request->msgSize=msgSize;
291 strcpy(target->host,to_name);
292 target->port=to_port;
294 if ((errcode=gras_msg_new_and_send(sock,GRASMSG_BW_REQUEST, 2,
297 fprintf(stderr,"grasbw_request(): Error %s encountered while sending the request.\n",
298 xbt_error_name(errcode));
299 gras_sock_close(sock);
302 if ((errcode=gras_msg_wait(240,GRASMSG_BW_RESULT,&answer))) {
303 fprintf(stderr,"grasbw_request(): Error %s encountered while waiting for the answer.\n",
304 xbt_error_name(errcode));
305 gras_sock_close(sock);
309 if((errcode=gras_msg_ctn(answer,0,0,msgError_t).errcode)) {
310 fprintf(stderr,"grasbw_request(): Peer reported error %s (%s).\n",
311 xbt_error_name(errcode),gras_msg_ctn(answer,0,0,msgError_t).errmsg);
312 gras_msg_free(answer);
313 gras_sock_close(sock);
317 /* fprintf(stderr,"sec=%p",gras_msg_ctn(answer,1,0,msgResult_t)); */
318 *sec=gras_msg_ctn(answer,1,0,msgResult_t).value;
319 *bw=gras_msg_ctn(answer,1,1,msgResult_t).value;
321 gras_msg_free(answer);
322 gras_sock_close(sock);
326 int grasbw_cbBWRequest(gras_msg_t *msg) {
327 /* specification of the test to run */
328 char* to_name=gras_msg_ctn(msg,0,0,msgHost_t).host;
329 unsigned int to_port=gras_msg_ctn(msg,0,0,msgHost_t).port;
331 unsigned int bufSize=gras_msg_ctn(msg,1,0,BwExp_t).bufSize;
332 unsigned int expSize=gras_msg_ctn(msg,1,0,BwExp_t).expSize;
333 unsigned int msgSize=gras_msg_ctn(msg,1,0,BwExp_t).msgSize;
338 if (!(error=(msgError_t *)malloc(sizeof(msgError_t))) ||
339 !(res=(msgResult_t *)malloc(sizeof(msgResult_t) * 2))) {
340 fprintf(stderr,"%s:%d:grasbw_cbRequest: Malloc error\n",__FILE__,__LINE__);
344 if ((error->errcode=grasbw_test(to_name,to_port,bufSize,expSize,msgSize,
345 &(res[0].value),&(res[1].value) ))) {
347 "%s:%d:grasbw_cbRequest: Error %s encountered while doing the test\n",
348 __FILE__,__LINE__,xbt_error_name(error->errcode));
349 strncpy(error->errmsg,"Error within grasbw_test",ERRMSG_LEN);
350 gras_msg_new_and_send(msg->sock,GRASMSG_BW_RESULT,2,
355 res[0].timestamp = (unsigned int) gras_time();
356 res[1].timestamp = (unsigned int) gras_time();
357 gras_msg_new_and_send(msg->sock,GRASMSG_BW_RESULT,2,
364 /* ***************************************************************************
366 * ***************************************************************************/
368 xbt_error_t grasbw_saturate_start(const char* from_name,unsigned int from_port,
369 const char* to_name,unsigned int to_port,
370 unsigned int msgSize, unsigned int timeout) {
379 if((errcode=gras_sock_client_open(from_name,from_port,&sock))) {
380 fprintf(stderr,"%s:%d:saturate_start(): Error %s encountered while contacting peer\n",
381 __FILE__,__LINE__,xbt_error_name(errcode));
384 if (!(request=(SatExp_t *)malloc(sizeof(SatExp_t))) ||
385 !(target=(msgHost_t*)malloc(sizeof(msgHost_t)))) {
386 fprintf(stderr,"%s:%d:saturate_start(): Malloc error\n",__FILE__,__LINE__);
387 gras_sock_close(sock);
391 request->timeout=timeout;
392 request->msgSize=msgSize;
394 strcpy(target->host,to_name);
395 target->port=to_port;
397 if ((errcode=gras_msg_new_and_send(sock,GRASMSG_SAT_START, 2,
400 fprintf(stderr,"%s:%d:saturate_start(): Error %s encountered while sending the request.\n",
401 __FILE__,__LINE__,xbt_error_name(errcode));
402 gras_sock_close(sock);
405 if ((errcode=gras_msg_wait(120,GRASMSG_SAT_STARTED,&answer))) {
406 fprintf(stderr,"%s:%d:saturate_start(): Error %s encountered while waiting for the ACK.\n",
407 __FILE__,__LINE__,xbt_error_name(errcode));
408 gras_sock_close(sock);
412 if((errcode=gras_msg_ctn(answer,0,0,msgError_t).errcode)) {
413 fprintf(stderr,"%s:%d:saturate_start(): Peer reported error %s (%s).\n",
414 __FILE__,__LINE__,xbt_error_name(errcode),gras_msg_ctn(answer,0,0,msgError_t).errmsg);
415 gras_msg_free(answer);
416 gras_sock_close(sock);
420 gras_msg_free(answer);
421 gras_sock_close(sock);
425 int grasbw_cbSatStart(gras_msg_t *msg) {
429 double start; /* time to timeout */
431 /* specification of the test to run */
432 char* to_name=gras_msg_ctn(msg,0,0,msgHost_t).host;
433 unsigned int to_port=gras_msg_ctn(msg,0,0,msgHost_t).port;
435 unsigned int msgSize=gras_msg_ctn(msg,1,0,SatExp_t).msgSize;
436 unsigned int timeout=gras_msg_ctn(msg,1,0,SatExp_t).timeout;
437 unsigned int raw_port;
445 fprintf(stderr,"grasbw_cbSatStart(sd=%p)\n",msg->sock);
446 fprintf(stderr,"(server=%d,raw=%d,fromPID=%d,toPID=%d,toHost=%p,toPort=%d,toChan=%d)\n",
447 msg->sock->server_sock,msg->sock->raw_sock,msg->sock->from_PID,
448 msg->sock->to_PID,msg->sock->to_host,msg->sock->to_port,msg->sock->to_chan);
451 /* Negociate the saturation with the peer */
452 if((errcode=gras_sock_client_open(to_name,to_port,&sock))) {
453 fprintf(stderr,"cbSatStart(): Error %s encountered while contacting peer\n",
454 xbt_error_name(errcode));
455 grasRepportError(msg->sock,GRASMSG_SAT_STARTED,1,
456 "cbSatStart: Severe error: Cannot send error status to requester!!\n",
457 errcode,"Cannot contact peer.\n");
460 if (!(request=(SatExp_t *)malloc(sizeof(SatExp_t)))) {
461 fprintf(stderr,"cbSatStart(): Malloc error\n");
462 gras_sock_close(sock);
463 grasRepportError(msg->sock,GRASMSG_SAT_STARTED,1,
464 "cbSatStart: Severe error: Cannot send error status to requester!!\n",
465 malloc_error,"Cannot build request.\n");
469 request->timeout=gras_msg_ctn(msg,1,0,SatExp_t).timeout;
470 request->msgSize=gras_msg_ctn(msg,1,0,SatExp_t).msgSize;
472 if ((errcode=gras_msg_new_and_send(sock,GRASMSG_SAT_BEGIN, 1,
474 fprintf(stderr,"cbSatStart(): Error %s encountered while sending the request.\n",
475 xbt_error_name(errcode));
476 grasRepportError(msg->sock,GRASMSG_SAT_STARTED,1,
477 "cbSatStart: Severe error: Cannot send error status to requester!!\n",
478 errcode,"Cannot send request.\n");
479 gras_sock_close(sock);
483 if ((errcode=gras_msg_wait(120,GRASMSG_SAT_BEGUN,&answer))) {
484 fprintf(stderr,"cbSatStart(): Error %s encountered while waiting for the ACK.\n",
485 xbt_error_name(errcode));
486 gras_sock_close(sock);
488 grasRepportError(msg->sock,GRASMSG_SAT_STARTED,1,
489 "cbSatStart: Severe error: Cannot send error status to requester!!\n",
491 "Cannot receive the ACK.\n");
495 if((errcode=gras_msg_ctn(answer,0,0,msgError_t).errcode)) {
496 fprintf(stderr,"cbSatStart(): Peer reported error %s (%s).\n",
497 xbt_error_name(errcode),gras_msg_ctn(answer,0,0,msgError_t).errmsg);
499 grasRepportError(msg->sock,GRASMSG_SAT_STARTED,1,
500 "cbSatStart: Severe error: Cannot send error status to requester!!\n",
502 "Peer repported '%s'.\n",gras_msg_ctn(answer,0,0,msgError_t).errmsg);
503 gras_msg_free(answer);
504 gras_sock_close(sock);
508 raw_port=gras_msg_ctn(answer,1,0,SatExp_t).port;
510 if ((errcode=gras_rawsock_client_open(to_name,raw_port,msgSize,&raw))) {
511 fprintf(stderr,"cbSatStart(): Error %s while opening raw socket to %s:%d.\n",
512 xbt_error_name(errcode),to_name,gras_msg_ctn(answer,1,0,SatExp_t).port);
514 grasRepportError(msg->sock,GRASMSG_SAT_STARTED,1,
515 "cbSatStart: Severe error: Cannot send error status to requester!!\n",
516 errcode,"Cannot open raw socket.\n");
517 gras_sock_close(sock);
521 /* send a train of data before repporting that XP is started */
522 if ((errcode=gras_rawsock_send(raw,msgSize,msgSize))) {
523 fprintf(stderr,"cbSatStart: Failure %s during raw send\n",xbt_error_name(errcode));
524 grasRepportError(msg->sock,GRASMSG_SAT_STARTED,1,
525 "cbSatStart: Severe error: Cannot send error status to requester!!\n",
526 errcode,"Cannot raw send.\n");
527 gras_sock_close(sock);
528 gras_rawsock_close(raw);
532 grasRepportError(msg->sock,GRASMSG_SAT_STARTED,1,
533 "cbSatStart: Severe error: Cannot send error status to requester!!\n",
534 no_error,"Saturation started");
535 gras_msg_free(answer);
538 /* Do the saturation until we get a SAT_STOP message or until we timeout the whole XP*/
540 while (gras_msg_wait(0,GRASMSG_SAT_STOP,&msg)==timeout_error &&
541 gras_time()-start < timeout) {
542 if ((errcode=gras_rawsock_send(raw,msgSize,msgSize))) {
543 fprintf(stderr,"cbSatStart: Failure %s during raw send\n",xbt_error_name(errcode));
544 /* our error message do not interess anyone. SAT_STOP will do nothing. */
545 gras_sock_close(sock);
546 gras_rawsock_close(raw);
550 if (gras_time()-start > timeout) {
551 fprintf(stderr,"The saturation experiment did timeout. Stop it NOW\n");
552 gras_sock_close(sock);
553 gras_rawsock_close(raw);
557 /* Handle the SAT_STOP which broke the previous while */
559 if ((errcode=gras_msg_new_and_send(sock, GRASMSG_SAT_END,0))) {
560 fprintf(stderr,"cbSatStart(): Cannot tell peer to stop saturation\n");
562 grasRepportError(msg->sock,GRASMSG_SAT_STOPPED,1,
563 "cbSatStart: Severe error: Cannot send error status to requester!!\n",
564 errcode,"Sending SAT_END to peer failed.\n");
565 gras_sock_close(sock);
566 gras_rawsock_close(raw);
570 if ((errcode=gras_msg_wait(60,GRASMSG_SAT_ENDED,&answer))) {
571 fprintf(stderr,"cbSatStart(): Peer didn't ACK the end\n");
573 grasRepportError(msg->sock,GRASMSG_SAT_STOPPED,1,
574 "cbSatStart: Severe error: Cannot send error status to requester!!\n",
575 errcode,"Receiving SAT_ENDED from peer failed.\n");
576 gras_sock_close(sock);
577 gras_rawsock_close(raw);
580 grasRepportError(msg->sock,GRASMSG_SAT_STOPPED,1,
581 "cbSatStart: Severe error: Cannot send error status to requester!!\n",
584 gras_sock_close(sock);
585 gras_rawsock_close(raw);
586 gras_msg_free(answer);
592 int grasbw_cbSatBegin(gras_msg_t *msg) {
595 double start; /* timer */
597 unsigned int msgSize=gras_msg_ctn(msg,0,0,SatExp_t).msgSize;
598 unsigned int timeout=gras_msg_ctn(msg,0,0,SatExp_t).timeout;
603 if (!(request=(SatExp_t*)malloc(sizeof(SatExp_t))) ||
604 !(error=(msgError_t *)malloc(sizeof(msgError_t)))) {
605 fprintf(stderr,"cbSatBegin(): Malloc error\n");
606 grasRepportError(msg->sock,GRASMSG_SAT_BEGUN,2,
607 "cbSatBegin: Severe error: Cannot send error status to requester!!\n",
608 malloc_error,"Malloc error");
612 if ((errcode=gras_rawsock_server_open(6666,8000,msgSize,&raw))) {
613 fprintf(stderr,"cbSatBegin(): Error %s encountered while opening a raw socket\n",
614 xbt_error_name(errcode));
615 grasRepportError(msg->sock,GRASMSG_SAT_BEGUN,2,
616 "cbSatBegin: Severe error: Cannot send error status to requester!!\n",
617 errcode,"Cannot open raw socket");
620 request->port=gras_rawsock_get_peer_port(raw);
621 request->msgSize=msgSize;
622 error->errcode=no_error;
623 error->errmsg[0]='\0';
624 if ((errcode=gras_msg_new_and_send(msg->sock,GRASMSG_SAT_BEGUN,2,
627 fprintf(stderr,"cbSatBegin(): Error %s encountered while send ACK to peer\n",
628 xbt_error_name(errcode));
634 while (gras_msg_wait(0,GRASMSG_SAT_END,&msg)==timeout_error &&
635 gras_time() - start < timeout) {
636 errcode=gras_rawsock_recv(raw,msgSize,msgSize,1);
637 if (errcode != timeout_error && errcode != no_error) {
638 fprintf(stderr,"cbSatBegin: Failure %s during raw receive\n",xbt_error_name(errcode));
639 /* our error message do not interess anyone. SAT_END will do nothing. */
640 /* (if timeout'ed, it may be because the sender stopped emission. so survive it) */
644 if (gras_time()-start > timeout) {
645 fprintf(stderr,"The saturation experiment did timeout. Stop it NOW.\n");
646 gras_rawsock_close(raw);
650 grasRepportError(msg->sock,GRASMSG_SAT_ENDED,1,
651 "cbSatBegin: Cannot send SAT_ENDED.\n",
653 gras_rawsock_close(raw);
658 xbt_error_t grasbw_saturate_stop(const char* from_name,unsigned int from_port,
659 const char* to_name,unsigned int to_port) {
664 if((errcode=gras_sock_client_open(from_name,from_port,&sock))) {
665 fprintf(stderr,"saturate_stop(): Error %s encountered while contacting peer\n",
666 xbt_error_name(errcode));
670 if ((errcode=gras_msg_new_and_send(sock,GRASMSG_SAT_STOP,0))) {
671 fprintf(stderr,"saturate_stop(): Error %s encountered while sending request\n",
672 xbt_error_name(errcode));
673 gras_sock_close(sock);
677 if ((errcode=gras_msg_wait(120,GRASMSG_SAT_STOPPED,&answer))) {
678 fprintf(stderr,"saturate_stop(): Error %s encountered while receiving ACK\n",
679 xbt_error_name(errcode));
680 gras_sock_close(sock);
684 if((errcode=gras_msg_ctn(answer,0,0,msgError_t).errcode)) {
685 fprintf(stderr,"saturate_stop(): Peer reported error %s (%s).\n",
686 xbt_error_name(errcode),gras_msg_ctn(answer,0,0,msgError_t).errmsg);
687 gras_msg_free(answer);
688 gras_sock_close(sock);
692 gras_msg_free(answer);
693 gras_sock_close(sock);