1 /* file trp (transport) - send/receive a bunch of bytes in SG realm */
3 /* Note that this is only used to debug other parts of GRAS since message */
4 /* exchange in SG realm is implemented directly without mimicing real life */
5 /* This would be terribly unefficient. */
7 /* Copyright (c) 2004, 2005, 2006, 2007, 2009, 2010. The SimGrid Team.
8 * All rights reserved. */
10 /* This program is free software; you can redistribute it and/or modify it
11 * under the terms of the license (GNU LGPL) which comes with this package. */
15 #include "simix/simix.h"
16 #include "gras/Msg/msg_private.h"
17 #include "gras/Transport/transport_private.h"
18 #include "gras/Virtu/virtu_sg.h"
20 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(gras_trp_sg, gras_trp,
21 "SimGrid pseudo-transport");
27 /* retrieve the port record associated to a numerical port on an host */
28 static gras_sg_portrec_t find_port(gras_hostdata_t * hd, int port);
30 void gras_trp_sg_socket_client(gras_trp_plugin_t self,
33 /* OUT */ gras_socket_t sock);
34 void gras_trp_sg_socket_server(gras_trp_plugin_t self,
36 /* OUT */ gras_socket_t sock);
37 void gras_trp_sg_socket_close(gras_socket_t sd);
39 void gras_trp_sg_chunk_send_raw(gras_socket_t sd,
40 const char *data, unsigned long int size);
41 void gras_trp_sg_chunk_send(gras_socket_t sd,
43 unsigned long int size, int stable_ignored);
45 int gras_trp_sg_chunk_recv(gras_socket_t sd,
46 char *data, unsigned long int size);
49 *** Specific plugin part
52 int placeholder; /* nothing plugin specific so far */
53 } gras_trp_sg_plug_data_t;
59 static gras_sg_portrec_t find_port(gras_hostdata_t * hd, int port)
64 xbt_assert(hd, "Please run gras_process_init on each process");
66 xbt_dynar_foreach(hd->ports, cpt, pr) {
74 *** Info about who's speaking
76 static int gras_trp_sg_my_port(gras_socket_t s) {
77 gras_trp_sg_sock_data_t sockdata = s->data;
78 if (gras_socket_im_the_server(s))
79 return sockdata->server_port;
81 return sockdata->client_port;
83 static int gras_trp_sg_peer_port(gras_socket_t s) {
84 gras_trp_sg_sock_data_t sockdata = s->data;
85 if (gras_socket_im_the_server(s))
86 return sockdata->client_port;
88 return sockdata->server_port;
91 static const char* gras_trp_sg_peer_name(gras_socket_t s) {
92 gras_trp_sg_sock_data_t sockdata = s->data;
93 if (gras_socket_im_the_server(s))
94 return SIMIX_host_get_name(SIMIX_req_process_get_host(sockdata->client));
96 return SIMIX_host_get_name(SIMIX_req_process_get_host(sockdata->server));
99 static const char* gras_trp_sg_peer_proc(gras_socket_t s) {
102 static void gras_trp_sg_peer_proc_set(gras_socket_t s,char *name) {
106 void gras_trp_sg_setup(gras_trp_plugin_t plug)
109 plug->my_port = gras_trp_sg_my_port;
110 plug->peer_port = gras_trp_sg_peer_port;
111 plug->peer_name = gras_trp_sg_peer_name;
112 plug->peer_proc = gras_trp_sg_peer_proc;
113 plug->peer_proc_set = gras_trp_sg_peer_proc_set;
115 gras_trp_sg_plug_data_t *data = xbt_new(gras_trp_sg_plug_data_t, 1);
119 plug->socket_client = gras_trp_sg_socket_client;
120 plug->socket_server = gras_trp_sg_socket_server;
121 plug->socket_close = gras_trp_sg_socket_close;
123 plug->raw_send = gras_trp_sg_chunk_send_raw;
124 plug->send = gras_trp_sg_chunk_send;
125 plug->raw_recv = plug->recv = gras_trp_sg_chunk_recv;
127 plug->flush = NULL; /* nothing cached */
130 void gras_trp_sg_socket_client(gras_trp_plugin_t self,
133 /* OUT */ gras_socket_t sock)
138 gras_trp_sg_sock_data_t data;
139 gras_sg_portrec_t pr;
141 /* make sure this socket will reach someone */
142 if (!(peer = SIMIX_req_host_get_by_name(host)))
143 THROWF(mismatch_error, 0,
144 "Can't connect to %s: no such host.\n", host);
146 if (!(hd = (gras_hostdata_t *) SIMIX_req_host_get_data(peer)))
147 THROWF(mismatch_error, 0,
148 "can't connect to %s: no process on this host",
151 pr = find_port(hd, port);
154 THROWF(mismatch_error, 0,
155 "can't connect to %s:%d, no process listen on this port",
159 /* Ensure that the listener is expecting the kind of stuff we want to send */
160 if (pr->meas && !sock->meas) {
161 THROWF(mismatch_error, 0,
162 "can't connect to %s:%d in regular mode, the process listen "
163 "in measurement mode on this port", host,
166 if (!pr->meas && sock->meas) {
167 THROWF(mismatch_error, 0,
168 "can't connect to %s:%d in measurement mode, the process listen "
169 "in regular mode on this port", host,
173 /* create simulation data of the socket */
174 data = xbt_new0(s_gras_trp_sg_sock_data_t, 1);
175 data->client = SIMIX_process_self();
176 data->server = pr->server;
177 data->server_port = port;
178 data->client_port = gras_os_myport();
180 /* initialize synchronization stuff on the socket */
181 data->rdv_server = pr->rdv;
182 data->rdv_client = SIMIX_req_rdv_create(NULL);
183 data->comm_recv = SIMIX_req_comm_irecv(data->rdv_client, &data->msg, NULL, NULL, NULL);
185 /* connect that simulation data to the socket */
189 XBT_DEBUG("%s (PID %d) connects in %s mode to %s:%d (rdv_ser:%p, rdv_cli:%p, comm:%p)",
190 SIMIX_req_process_get_name(SIMIX_process_self()), gras_os_getpid(),
191 sock->meas ? "meas" : "regular", host, port,
192 data->rdv_server,data->rdv_client,data->comm_recv);
195 void gras_trp_sg_socket_server(gras_trp_plugin_t self, int port, gras_socket_t sock)
198 gras_hostdata_t *hd =
199 (gras_hostdata_t *) SIMIX_host_self_get_data();
200 gras_sg_portrec_t pr;
201 gras_trp_sg_sock_data_t data;
203 xbt_assert(hd, "Please run gras_process_init on each process");
207 /* Check whether a server is already listening on that port or not */
208 pr = find_port(hd, port);
211 THROWF(mismatch_error, 0,
212 "can't listen on address %s:%d: port already in use.",
213 SIMIX_host_self_get_name(), port);
215 /* This port is free, let's take it */
216 pr = xbt_new(s_gras_sg_portrec_t, 1);
218 pr->meas = sock->meas;
219 pr->server = SIMIX_process_self();
220 xbt_dynar_push(hd->ports, &pr);
221 pr->rdv = SIMIX_req_rdv_create(NULL);
223 /* Create the socket */
224 data = xbt_new0(s_gras_trp_sg_sock_data_t, 1);
225 data->server = SIMIX_process_self();
226 data->server_port = port;
228 data->rdv_server = pr->rdv;
229 data->rdv_client = NULL;
230 data->comm_recv = SIMIX_req_comm_irecv(pr->rdv, &data->msg, NULL, NULL, NULL);
235 ("'%s' (%d) ears on %s:%d%s (%p; data:%p); Here rdv: %p; Remote rdv: %p; Comm %p",
236 SIMIX_req_process_get_name(SIMIX_process_self()), gras_os_getpid(),
237 SIMIX_host_self_get_name(), port,
238 sock->meas ? " (mode meas)" : "", sock, data,
240 SIMIX_process_self())? data->rdv_server : data->rdv_client,
242 SIMIX_process_self())? data->rdv_client : data->rdv_server,
247 void gras_trp_sg_socket_close(gras_socket_t sock)
249 gras_hostdata_t *hd =
250 (gras_hostdata_t *) SIMIX_host_self_get_data();
252 gras_sg_portrec_t pr;
254 XBT_IN(" (sock=%p)", sock);
259 xbt_assert(hd, "Please run gras_process_init on each process");
261 gras_trp_sg_sock_data_t sockdata = sock->data;
263 if (sock->incoming && !sock->outgoing && sockdata->server_port >= 0) {
264 /* server mode socket. Unregister it from 'OS' tables */
265 xbt_dynar_foreach(hd->ports, cpt, pr) {
266 XBT_DEBUG("Check pr %d of %lu", cpt, xbt_dynar_length(hd->ports));
267 if (pr->port == sockdata->server_port) {
268 xbt_dynar_cursor_rm(hd->ports, &cpt);
274 ("socket_close called on the unknown incoming socket %p (port=%d)",
275 sock, sockdata->server_port);
277 /* FIXME: kill the rdv point if receiver side */
287 void gras_trp_sg_chunk_send(gras_socket_t sock,
289 unsigned long int size, int stable_ignored)
291 gras_trp_sg_chunk_send_raw(sock, data, size);
294 void gras_trp_sg_chunk_send_raw(gras_socket_t sock,
295 const char *data, unsigned long int size)
299 static unsigned int count = 0;
301 smx_action_t act; /* simix action */
302 gras_trp_procdata_t trp_remote_proc;
303 gras_msg_procdata_t msg_remote_proc;
304 gras_msg_t msg; /* message to send */
306 //gras_trp_sg_sock_data_t sock_data = (gras_trp_sg_sock_data_t) sock->data;
307 xbt_assert(sock->meas,
308 "SG chunk exchange shouldn't be used on non-measurement sockets");
311 /* creates simix action and waits its ends, waits in the sender host
314 if (XBT_LOG_ISENABLED(gras_trp_sg, xbt_log_priority_debug)) {
315 smx_process_t remote_dude =
316 (sock_data->server ==
317 SIMIX_process_self())? (sock_data->client) : (sock_data->server);
318 smx_host_t remote_host = SIMIX_req_process_get_host(remote_dude);
321 //SIMIX_network_send(sock_data->rdv,size,1,-1,NULL,0,NULL,NULL);
326 int gras_trp_sg_chunk_recv(gras_socket_t sock,
327 char *data, unsigned long int size)
329 //gras_trp_sg_sock_data_t *sock_data =
330 // (gras_trp_sg_sock_data_t *) sock->data;
332 //SIMIX_req_comm_recv(sock_data->rdv,-1,NULL,0,NULL);
335 gras_trp_sg_sock_data_t *remote_sock_data;
336 gras_socket_t remote_socket = NULL;
338 gras_msg_procdata_t msg_procdata =
339 (gras_msg_procdata_t) gras_libdata_by_name("gras_msg");
340 gras_trp_procdata_t trp_proc =
341 (gras_trp_procdata_t) gras_libdata_by_id(gras_trp_libdata_id);
343 xbt_assert(sock->meas,
344 "SG chunk exchange shouldn't be used on non-measurement sockets");
345 xbt_queue_shift_timed(trp_proc->meas_selectable_sockets,
348 if (remote_socket == NULL) {
349 THROWF(timeout_error, 0, "Timeout");
352 remote_sock_data = (gras_trp_sg_sock_data_t *) remote_socket->data;
353 msg_got = xbt_fifo_shift(msg_procdata->msg_to_receive_queue_meas);
355 sock_data = (gras_trp_sg_sock_data_t *) sock->data;
357 /* ok, I'm here, you can continue the communication */
358 SIMIX_req_cond_signal(remote_sock_data->cond);
360 SIMIX_req_mutex_lock(remote_sock_data->mutex);
361 /* wait for communication end */
362 SIMIX_req_cond_wait(remote_sock_data->cond, remote_sock_data->mutex);
364 if (msg_got->payl_size != size)
365 THROWF(mismatch_error, 0,
366 "Got %d bytes when %ld where expected (in %s->%s:%d)",
367 msg_got->payl_size, size,
368 SIMIX_req_host_get_name(sock_data->to_host),
369 SIMIX_host_self_get_name(), sock->peer_port);
372 memcpy(data, msg_got->payl, size);
374 xbt_free(msg_got->payl);
377 SIMIX_req_mutex_unlock(remote_sock_data->mutex);