3 /* amok_bandwidth - Bandwidth tests facilities */
5 /* Authors: Martin Quinson */
6 /* Copyright (C) 2003, 2004 the OURAGAN project. */
8 /* This program is free software; you can redistribute it and/or modify it
9 under the terms of the license (GNU LGPL) which comes with this package. */
15 #include "gras/messages.h"
16 #include "amok/bandwidth.h"
21 * Request for a BW experiment.
22 * If host==NULL, it should be between the sender and the receiver.
23 * If not, it should be between between the receiver and @host (3-tiers).
26 xbt_host_t host; /* host+raw socket to use */
27 unsigned int buf_size;
28 unsigned int exp_size;
29 unsigned int msg_size;
35 * Result of a BW experiment (payload when answering).
36 * if err.msg != NULL, it wasn't sucessful. Check err.msg and err.code to see why.
41 unsigned int timestamp;
50 * Description of a saturation experiment (payload asking some host to collaborate for that)
53 xbt_host_t host; /* host+raw socket to use */
54 unsigned int msg_size;
58 /* Prototypes of local callbacks */
59 int amok_bw_cb_bw_handshake(gras_socket_t *expeditor,
61 int amok_bw_cb_bw_request(gras_socket_t *expeditor,
64 int amok_bw_cb_sat_start(gras_socket_t *expeditor,
66 int amok_bw_cb_sat_begin(gras_socket_t *expeditor,
70 void amok_bw_init(void) {
72 gras_datadesc_type_t *bw_request_desc, *bw_res_desc, *sat_request_desc;
76 /* Build the datatype descriptions */
77 bw_request_desc = gras_datadesc_struct("bw_request_t");
78 gras_datadesc_struct_append(bw_request_desc,"host",gras_datadesc_by_name("xbt_host_t*"));
79 gras_datadesc_struct_append(bw_request_desc,"buf_size",gras_datadesc_by_name("unsigned int"));
80 gras_datadesc_struct_append(bw_request_desc,"exp_size",gras_datadesc_by_name("unsigned int"));
81 gras_datadesc_struct_append(bw_request_desc,"msg_size",gras_datadesc_by_name("unsigned int"));
82 gras_datadesc_struct_close(bw_request_desc);
83 bw_request_desc = gras_datadesc_ref("bw_request_t*",bw_request_desc);
85 bw_res_desc = gras_datadesc_struct("bw_res_t");
86 gras_datadesc_struct_append(bw_res_desc,"err",gras_datadesc_by_name("amok_remoterr_t"));
87 gras_datadesc_struct_append(bw_res_desc,"timestamp",gras_datadesc_by_name("unsigned int"));
88 gras_datadesc_struct_append(bw_res_desc,"seconds",gras_datadesc_by_name("double"));
89 gras_datadesc_struct_append(bw_res_desc,"bw",gras_datadesc_by_name("double"));
90 gras_datadesc_struct_close(bw_res_desc);
91 bw_res_desc = gras_datadesc_ref("bw_res_t*",bw_res_desc);
93 sat_request_desc = gras_datadesc_struct("sat_request_desc");
94 gras_datadesc_struct_append(sat_request_desc,"host",gras_datadesc_by_name("xbt_host_t"));
95 gras_datadesc_struct_append(sat_request_desc,"msg_size",gras_datadesc_by_name("unsigned int"));
96 gras_datadesc_struct_append(sat_request_desc,"timeout",gras_datadesc_by_name("unsigned int"));
97 gras_datadesc_struct_close(sat_request_desc);
98 sat_request_desc = gras_datadesc_ref("sat_request_t*",sat_request_desc);
100 /* Register the bandwidth messages */
101 gras_msgtype_declare("BW request", bw_request_desc);
102 gras_msgtype_declare("BW result", bw_res_desc);
103 gras_msgtype_declare("BW handshake", bw_request_desc);
104 gras_msgtype_declare("BW handshake ACK", bw_request_desc);
106 /* Register the saturation messages */
107 gras_msgtype_declare("SAT start", sat_request_desc);
108 gras_msgtype_declare("SAT started", gras_datadesc_by_name("amok_remoterr_t"));
109 gras_msgtype_declare("SAT begin", sat_request_desc);
110 gras_msgtype_declare("SAT begun", gras_datadesc_by_name("amok_remoterr_t"));
111 gras_msgtype_declare("SAT end", NULL);
112 gras_msgtype_declare("SAT ended", gras_datadesc_by_name("amok_remoterr_t"));
113 gras_msgtype_declare("SAT stop", NULL);
114 gras_msgtype_declare("SAT stopped", gras_datadesc_by_name("amok_remoterr_t"));
116 /* Register the callbacks */
117 gras_cb_register(gras_msgtype_by_name("BW request"),
118 &amok_bw_cb_bw_request);
119 gras_cb_register(gras_msgtype_by_name("BW handshake"),
120 &amok_bw_cb_bw_handshake);
122 gras_cb_register(gras_msgtype_by_name("SAT start"),
123 &amok_bw_cb_sat_start);
124 gras_cb_register(gras_msgtype_by_name("SAT begin"),
125 &amok_bw_cb_sat_begin);
128 /* ***************************************************************************
130 * ***************************************************************************/
131 /* Function to do a test from local to given host */
135 * Conduct a test between the local host and @peer, and
136 * report the result in last args
138 xbt_error_t amok_bw_test(gras_socket_t *peer,
139 unsigned int bufSize,unsigned int expSize,unsigned int msgSize,
140 /*OUT*/ double *sec, double *bw) {
141 gras_socket_t *rawIn,*rawOut;
144 bw_request_t *request;
147 for (port = 5000, errcode = system_error;
148 errcode == system_error;
149 errcode = gras_socket_server_ext(++port,bufSize,1,&rawIn));
150 if (errcode != no_error) {
151 ERROR1("Error %s encountered while opening a raw socket\n",
152 xbt_error_name(errcode));
156 request=xbt_new(bw_request_t);
157 request->bufSize=bufSize;
158 request->expSize=expSize;
159 request->msgSize=msgSize;
160 request->host.name = NULL;
161 request->host.port = gras_socket_peer_port(rawIn);
163 if ((errcode=gras_send(peer,gras_msgtype_by_name("BW handshake"),request))) {
164 ERROR1("Error %s encountered while sending the request.", xbt_error_name(errcode));
165 gras_sock_close(sock);
168 if ((errcode=gras_msg_wait(60,GRASMSG_BW_HANDSHAKED,&answer))) {
169 fprintf(stderr,"grasbw_test(): Error %s encountered while waiting for the answer.\n",
170 xbt_error_name(errcode));
171 gras_sock_close(sock);
174 if((errcode=gras_rawsock_client_open(to_name,gras_msg_ctn(answer,0,0,BwExp_t).port,
176 fprintf(stderr,"grasbw_test(): Error %s encountered while opening the raw socket to %s:%d\n",
177 xbt_error_name(errcode),to_name,gras_msg_ctn(answer,0,0,BwExp_t).port);
182 if ((errcode=gras_rawsock_send(rawOut,expSize,msgSize)) ||
183 (errcode=gras_rawsock_recv(rawIn,1,1,120))) {
184 fprintf(stderr,"grasbw_test(): Error %s encountered while sending the experiment.\n",
185 xbt_error_name(errcode));
186 gras_rawsock_close(rawOut);
187 gras_rawsock_close(rawIn);
190 *sec = gras_time() - *sec;
191 *bw = ((double)expSize /* 8.0*/) / *sec / (1024.0 *1024.0);
193 gras_rawsock_close(rawIn);
194 gras_rawsock_close(rawOut);
195 gras_sock_close(sock);
196 gras_msg_free(answer);
203 /* Callback to the GRASMSG_BW_HANDSHAKE message:
204 opens a server raw socket,
205 indicate its port in an answer GRASMSG_BW_HANDSHAKED message,
206 receive the corresponding data on the raw socket,
209 int grasbw_cbBWHandshake(gras_msg_t *msg) {
210 gras_rawsock_t *rawIn,*rawOut;
214 if ((errcode=gras_rawsock_server_open(6666,8000,gras_msg_ctn(msg,0,0,BwExp_t).bufSize,&rawIn))) {
215 fprintf(stderr,"grasbw_cbHandshake(): Error %s encountered while opening a raw socket\n",
216 xbt_error_name(errcode));
219 if ((errcode=gras_rawsock_client_open(gras_sock_get_peer_name(msg->sock),gras_msg_ctn(msg,0,0,BwExp_t).port,
220 gras_msg_ctn(msg,0,0,BwExp_t).bufSize,&rawOut))) {
221 fprintf(stderr,"grasbw_cbHandshake(): Error %s encountered while opening a raw socket\n",
222 xbt_error_name(errcode));
225 if (!(ans=(BwExp_t *)malloc(sizeof(BwExp_t)))) {
226 fprintf(stderr,"grasbw_cbHandshake(): Malloc error.\n");
227 gras_rawsock_close(rawIn);
228 gras_rawsock_close(rawOut);
231 ans->bufSize=gras_msg_ctn(msg,0,0,BwExp_t).bufSize;
232 ans->expSize=gras_msg_ctn(msg,0,0,BwExp_t).expSize;
233 ans->msgSize=gras_msg_ctn(msg,0,0,BwExp_t).msgSize;
234 ans->port=gras_rawsock_get_peer_port(rawIn);
235 /* fprintf(stderr,"grasbw_cbHandshake. bufSize=%d expSize=%d msgSize=%d port=%d\n",
236 ans->bufSize,ans->expSize,ans->msgSize,ans->port);*/
238 if ((errcode=gras_msg_new_and_send(msg->sock,GRASMSG_BW_HANDSHAKED, 1,
240 fprintf(stderr,"grasbw_cbHandshake(): Error %s encountered while sending the answer.\n",
241 xbt_error_name(errcode));
242 gras_rawsock_close(rawIn);
243 gras_rawsock_close(rawOut);
247 if ((errcode=gras_rawsock_recv(rawIn,
248 gras_msg_ctn(msg,0,0,BwExp_t).expSize,
249 gras_msg_ctn(msg,0,0,BwExp_t).msgSize,
251 (errcode=gras_rawsock_send(rawOut,1,1))) {
252 fprintf(stderr,"grasbw_cbHandshake(): Error %s encountered while receiving the experiment.\n",
253 xbt_error_name(errcode));
254 gras_rawsock_close(rawIn);
255 gras_rawsock_close(rawOut);
259 gras_rawsock_close(rawIn);
260 gras_rawsock_close(rawOut);
264 /* function to request a BW test between to external hosts */
265 xbt_error_t grasbw_request(const char* from_name,unsigned int from_port,
266 const char* to_name,unsigned int to_port,
267 unsigned int bufSize,unsigned int expSize,unsigned int msgSize,
268 /*OUT*/ double *sec, double*bw) {
277 if((errcode=gras_sock_client_open(from_name,from_port,&sock))) {
278 fprintf(stderr,"grasbw_request(): Error %s encountered while contacting the actuator\n",
279 xbt_error_name(errcode));
282 if (!(request=(BwExp_t *)malloc(sizeof(BwExp_t))) ||
283 !(target=(msgHost_t*)malloc(sizeof(msgHost_t)))) {
284 fprintf(stderr,"grasbw_test(): Malloc error\n");
285 gras_sock_close(sock);
289 request->bufSize=bufSize;
290 request->expSize=expSize;
291 request->msgSize=msgSize;
292 strcpy(target->host,to_name);
293 target->port=to_port;
295 if ((errcode=gras_msg_new_and_send(sock,GRASMSG_BW_REQUEST, 2,
298 fprintf(stderr,"grasbw_request(): Error %s encountered while sending the request.\n",
299 xbt_error_name(errcode));
300 gras_sock_close(sock);
303 if ((errcode=gras_msg_wait(240,GRASMSG_BW_RESULT,&answer))) {
304 fprintf(stderr,"grasbw_request(): Error %s encountered while waiting for the answer.\n",
305 xbt_error_name(errcode));
306 gras_sock_close(sock);
310 if((errcode=gras_msg_ctn(answer,0,0,msgError_t).errcode)) {
311 fprintf(stderr,"grasbw_request(): Peer reported error %s (%s).\n",
312 xbt_error_name(errcode),gras_msg_ctn(answer,0,0,msgError_t).errmsg);
313 gras_msg_free(answer);
314 gras_sock_close(sock);
318 /* fprintf(stderr,"sec=%p",gras_msg_ctn(answer,1,0,msgResult_t)); */
319 *sec=gras_msg_ctn(answer,1,0,msgResult_t).value;
320 *bw=gras_msg_ctn(answer,1,1,msgResult_t).value;
322 gras_msg_free(answer);
323 gras_sock_close(sock);
327 int grasbw_cbBWRequest(gras_msg_t *msg) {
328 /* specification of the test to run */
329 char* to_name=gras_msg_ctn(msg,0,0,msgHost_t).host;
330 unsigned int to_port=gras_msg_ctn(msg,0,0,msgHost_t).port;
332 unsigned int bufSize=gras_msg_ctn(msg,1,0,BwExp_t).bufSize;
333 unsigned int expSize=gras_msg_ctn(msg,1,0,BwExp_t).expSize;
334 unsigned int msgSize=gras_msg_ctn(msg,1,0,BwExp_t).msgSize;
339 if (!(error=(msgError_t *)malloc(sizeof(msgError_t))) ||
340 !(res=(msgResult_t *)malloc(sizeof(msgResult_t) * 2))) {
341 fprintf(stderr,"%s:%d:grasbw_cbRequest: Malloc error\n",__FILE__,__LINE__);
345 if ((error->errcode=grasbw_test(to_name,to_port,bufSize,expSize,msgSize,
346 &(res[0].value),&(res[1].value) ))) {
348 "%s:%d:grasbw_cbRequest: Error %s encountered while doing the test\n",
349 __FILE__,__LINE__,xbt_error_name(error->errcode));
350 strncpy(error->errmsg,"Error within grasbw_test",ERRMSG_LEN);
351 gras_msg_new_and_send(msg->sock,GRASMSG_BW_RESULT,2,
356 res[0].timestamp = (unsigned int) gras_time();
357 res[1].timestamp = (unsigned int) gras_time();
358 gras_msg_new_and_send(msg->sock,GRASMSG_BW_RESULT,2,
365 /* ***************************************************************************
367 * ***************************************************************************/
369 xbt_error_t grasbw_saturate_start(const char* from_name,unsigned int from_port,
370 const char* to_name,unsigned int to_port,
371 unsigned int msgSize, unsigned int timeout) {
380 if((errcode=gras_sock_client_open(from_name,from_port,&sock))) {
381 fprintf(stderr,"%s:%d:saturate_start(): Error %s encountered while contacting peer\n",
382 __FILE__,__LINE__,xbt_error_name(errcode));
385 if (!(request=(SatExp_t *)malloc(sizeof(SatExp_t))) ||
386 !(target=(msgHost_t*)malloc(sizeof(msgHost_t)))) {
387 fprintf(stderr,"%s:%d:saturate_start(): Malloc error\n",__FILE__,__LINE__);
388 gras_sock_close(sock);
392 request->timeout=timeout;
393 request->msgSize=msgSize;
395 strcpy(target->host,to_name);
396 target->port=to_port;
398 if ((errcode=gras_msg_new_and_send(sock,GRASMSG_SAT_START, 2,
401 fprintf(stderr,"%s:%d:saturate_start(): Error %s encountered while sending the request.\n",
402 __FILE__,__LINE__,xbt_error_name(errcode));
403 gras_sock_close(sock);
406 if ((errcode=gras_msg_wait(120,GRASMSG_SAT_STARTED,&answer))) {
407 fprintf(stderr,"%s:%d:saturate_start(): Error %s encountered while waiting for the ACK.\n",
408 __FILE__,__LINE__,xbt_error_name(errcode));
409 gras_sock_close(sock);
413 if((errcode=gras_msg_ctn(answer,0,0,msgError_t).errcode)) {
414 fprintf(stderr,"%s:%d:saturate_start(): Peer reported error %s (%s).\n",
415 __FILE__,__LINE__,xbt_error_name(errcode),gras_msg_ctn(answer,0,0,msgError_t).errmsg);
416 gras_msg_free(answer);
417 gras_sock_close(sock);
421 gras_msg_free(answer);
422 gras_sock_close(sock);
426 int grasbw_cbSatStart(gras_msg_t *msg) {
430 double start; /* time to timeout */
432 /* specification of the test to run */
433 char* to_name=gras_msg_ctn(msg,0,0,msgHost_t).host;
434 unsigned int to_port=gras_msg_ctn(msg,0,0,msgHost_t).port;
436 unsigned int msgSize=gras_msg_ctn(msg,1,0,SatExp_t).msgSize;
437 unsigned int timeout=gras_msg_ctn(msg,1,0,SatExp_t).timeout;
438 unsigned int raw_port;
446 fprintf(stderr,"grasbw_cbSatStart(sd=%p)\n",msg->sock);
447 fprintf(stderr,"(server=%d,raw=%d,fromPID=%d,toPID=%d,toHost=%p,toPort=%d,toChan=%d)\n",
448 msg->sock->server_sock,msg->sock->raw_sock,msg->sock->from_PID,
449 msg->sock->to_PID,msg->sock->to_host,msg->sock->to_port,msg->sock->to_chan);
452 /* Negociate the saturation with the peer */
453 if((errcode=gras_sock_client_open(to_name,to_port,&sock))) {
454 fprintf(stderr,"cbSatStart(): Error %s encountered while contacting peer\n",
455 xbt_error_name(errcode));
456 grasRepportError(msg->sock,GRASMSG_SAT_STARTED,1,
457 "cbSatStart: Severe error: Cannot send error status to requester!!\n",
458 errcode,"Cannot contact peer.\n");
461 if (!(request=(SatExp_t *)malloc(sizeof(SatExp_t)))) {
462 fprintf(stderr,"cbSatStart(): Malloc error\n");
463 gras_sock_close(sock);
464 grasRepportError(msg->sock,GRASMSG_SAT_STARTED,1,
465 "cbSatStart: Severe error: Cannot send error status to requester!!\n",
466 malloc_error,"Cannot build request.\n");
470 request->timeout=gras_msg_ctn(msg,1,0,SatExp_t).timeout;
471 request->msgSize=gras_msg_ctn(msg,1,0,SatExp_t).msgSize;
473 if ((errcode=gras_msg_new_and_send(sock,GRASMSG_SAT_BEGIN, 1,
475 fprintf(stderr,"cbSatStart(): Error %s encountered while sending the request.\n",
476 xbt_error_name(errcode));
477 grasRepportError(msg->sock,GRASMSG_SAT_STARTED,1,
478 "cbSatStart: Severe error: Cannot send error status to requester!!\n",
479 errcode,"Cannot send request.\n");
480 gras_sock_close(sock);
484 if ((errcode=gras_msg_wait(120,GRASMSG_SAT_BEGUN,&answer))) {
485 fprintf(stderr,"cbSatStart(): Error %s encountered while waiting for the ACK.\n",
486 xbt_error_name(errcode));
487 gras_sock_close(sock);
489 grasRepportError(msg->sock,GRASMSG_SAT_STARTED,1,
490 "cbSatStart: Severe error: Cannot send error status to requester!!\n",
492 "Cannot receive the ACK.\n");
496 if((errcode=gras_msg_ctn(answer,0,0,msgError_t).errcode)) {
497 fprintf(stderr,"cbSatStart(): Peer reported error %s (%s).\n",
498 xbt_error_name(errcode),gras_msg_ctn(answer,0,0,msgError_t).errmsg);
500 grasRepportError(msg->sock,GRASMSG_SAT_STARTED,1,
501 "cbSatStart: Severe error: Cannot send error status to requester!!\n",
503 "Peer repported '%s'.\n",gras_msg_ctn(answer,0,0,msgError_t).errmsg);
504 gras_msg_free(answer);
505 gras_sock_close(sock);
509 raw_port=gras_msg_ctn(answer,1,0,SatExp_t).port;
511 if ((errcode=gras_rawsock_client_open(to_name,raw_port,msgSize,&raw))) {
512 fprintf(stderr,"cbSatStart(): Error %s while opening raw socket to %s:%d.\n",
513 xbt_error_name(errcode),to_name,gras_msg_ctn(answer,1,0,SatExp_t).port);
515 grasRepportError(msg->sock,GRASMSG_SAT_STARTED,1,
516 "cbSatStart: Severe error: Cannot send error status to requester!!\n",
517 errcode,"Cannot open raw socket.\n");
518 gras_sock_close(sock);
522 /* send a train of data before repporting that XP is started */
523 if ((errcode=gras_rawsock_send(raw,msgSize,msgSize))) {
524 fprintf(stderr,"cbSatStart: Failure %s during raw send\n",xbt_error_name(errcode));
525 grasRepportError(msg->sock,GRASMSG_SAT_STARTED,1,
526 "cbSatStart: Severe error: Cannot send error status to requester!!\n",
527 errcode,"Cannot raw send.\n");
528 gras_sock_close(sock);
529 gras_rawsock_close(raw);
533 grasRepportError(msg->sock,GRASMSG_SAT_STARTED,1,
534 "cbSatStart: Severe error: Cannot send error status to requester!!\n",
535 no_error,"Saturation started");
536 gras_msg_free(answer);
539 /* Do the saturation until we get a SAT_STOP message or until we timeout the whole XP*/
541 while (gras_msg_wait(0,GRASMSG_SAT_STOP,&msg)==timeout_error &&
542 gras_time()-start < timeout) {
543 if ((errcode=gras_rawsock_send(raw,msgSize,msgSize))) {
544 fprintf(stderr,"cbSatStart: Failure %s during raw send\n",xbt_error_name(errcode));
545 /* our error message do not interess anyone. SAT_STOP will do nothing. */
546 gras_sock_close(sock);
547 gras_rawsock_close(raw);
551 if (gras_time()-start > timeout) {
552 fprintf(stderr,"The saturation experiment did timeout. Stop it NOW\n");
553 gras_sock_close(sock);
554 gras_rawsock_close(raw);
558 /* Handle the SAT_STOP which broke the previous while */
560 if ((errcode=gras_msg_new_and_send(sock, GRASMSG_SAT_END,0))) {
561 fprintf(stderr,"cbSatStart(): Cannot tell peer to stop saturation\n");
563 grasRepportError(msg->sock,GRASMSG_SAT_STOPPED,1,
564 "cbSatStart: Severe error: Cannot send error status to requester!!\n",
565 errcode,"Sending SAT_END to peer failed.\n");
566 gras_sock_close(sock);
567 gras_rawsock_close(raw);
571 if ((errcode=gras_msg_wait(60,GRASMSG_SAT_ENDED,&answer))) {
572 fprintf(stderr,"cbSatStart(): Peer didn't ACK the end\n");
574 grasRepportError(msg->sock,GRASMSG_SAT_STOPPED,1,
575 "cbSatStart: Severe error: Cannot send error status to requester!!\n",
576 errcode,"Receiving SAT_ENDED from peer failed.\n");
577 gras_sock_close(sock);
578 gras_rawsock_close(raw);
581 grasRepportError(msg->sock,GRASMSG_SAT_STOPPED,1,
582 "cbSatStart: Severe error: Cannot send error status to requester!!\n",
585 gras_sock_close(sock);
586 gras_rawsock_close(raw);
587 gras_msg_free(answer);
593 int grasbw_cbSatBegin(gras_msg_t *msg) {
596 double start; /* timer */
598 unsigned int msgSize=gras_msg_ctn(msg,0,0,SatExp_t).msgSize;
599 unsigned int timeout=gras_msg_ctn(msg,0,0,SatExp_t).timeout;
604 if (!(request=(SatExp_t*)malloc(sizeof(SatExp_t))) ||
605 !(error=(msgError_t *)malloc(sizeof(msgError_t)))) {
606 fprintf(stderr,"cbSatBegin(): Malloc error\n");
607 grasRepportError(msg->sock,GRASMSG_SAT_BEGUN,2,
608 "cbSatBegin: Severe error: Cannot send error status to requester!!\n",
609 malloc_error,"Malloc error");
613 if ((errcode=gras_rawsock_server_open(6666,8000,msgSize,&raw))) {
614 fprintf(stderr,"cbSatBegin(): Error %s encountered while opening a raw socket\n",
615 xbt_error_name(errcode));
616 grasRepportError(msg->sock,GRASMSG_SAT_BEGUN,2,
617 "cbSatBegin: Severe error: Cannot send error status to requester!!\n",
618 errcode,"Cannot open raw socket");
621 request->port=gras_rawsock_get_peer_port(raw);
622 request->msgSize=msgSize;
623 error->errcode=no_error;
624 error->errmsg[0]='\0';
625 if ((errcode=gras_msg_new_and_send(msg->sock,GRASMSG_SAT_BEGUN,2,
628 fprintf(stderr,"cbSatBegin(): Error %s encountered while send ACK to peer\n",
629 xbt_error_name(errcode));
635 while (gras_msg_wait(0,GRASMSG_SAT_END,&msg)==timeout_error &&
636 gras_time() - start < timeout) {
637 errcode=gras_rawsock_recv(raw,msgSize,msgSize,1);
638 if (errcode != timeout_error && errcode != no_error) {
639 fprintf(stderr,"cbSatBegin: Failure %s during raw receive\n",xbt_error_name(errcode));
640 /* our error message do not interess anyone. SAT_END will do nothing. */
641 /* (if timeout'ed, it may be because the sender stopped emission. so survive it) */
645 if (gras_time()-start > timeout) {
646 fprintf(stderr,"The saturation experiment did timeout. Stop it NOW.\n");
647 gras_rawsock_close(raw);
651 grasRepportError(msg->sock,GRASMSG_SAT_ENDED,1,
652 "cbSatBegin: Cannot send SAT_ENDED.\n",
654 gras_rawsock_close(raw);
659 xbt_error_t grasbw_saturate_stop(const char* from_name,unsigned int from_port,
660 const char* to_name,unsigned int to_port) {
665 if((errcode=gras_sock_client_open(from_name,from_port,&sock))) {
666 fprintf(stderr,"saturate_stop(): Error %s encountered while contacting peer\n",
667 xbt_error_name(errcode));
671 if ((errcode=gras_msg_new_and_send(sock,GRASMSG_SAT_STOP,0))) {
672 fprintf(stderr,"saturate_stop(): Error %s encountered while sending request\n",
673 xbt_error_name(errcode));
674 gras_sock_close(sock);
678 if ((errcode=gras_msg_wait(120,GRASMSG_SAT_STOPPED,&answer))) {
679 fprintf(stderr,"saturate_stop(): Error %s encountered while receiving ACK\n",
680 xbt_error_name(errcode));
681 gras_sock_close(sock);
685 if((errcode=gras_msg_ctn(answer,0,0,msgError_t).errcode)) {
686 fprintf(stderr,"saturate_stop(): Peer reported error %s (%s).\n",
687 xbt_error_name(errcode),gras_msg_ctn(answer,0,0,msgError_t).errmsg);
688 gras_msg_free(answer);
689 gras_sock_close(sock);
693 gras_msg_free(answer);
694 gras_sock_close(sock);