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 "simgrid/simix.h"
16 #include "gras/Msg/msg_private.h"
17 #include "gras/Transport/transport_private.h"
18 #include "gras/Virtu/virtu_sg.h"
19 #include "xbt/xbt_socket_private.h" /* FIXME */
21 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(gras_trp_sg, gras_trp,
22 "SimGrid pseudo-transport");
28 /* retrieve the port record associated to a numerical port on an host */
29 static gras_sg_portrec_t find_port(gras_hostdata_t * hd, int port);
31 void gras_trp_sg_socket_client(xbt_trp_plugin_t self,
34 /* OUT */ xbt_socket_t sock);
35 void gras_trp_sg_socket_server(xbt_trp_plugin_t self,
37 /* OUT */ xbt_socket_t sock);
38 void gras_trp_sg_socket_close(xbt_socket_t sd);
40 void gras_trp_sg_chunk_send_raw(xbt_socket_t sd,
41 const char *data, unsigned long int size);
42 void gras_trp_sg_chunk_send(xbt_socket_t sd,
44 unsigned long int size, int stable_ignored);
46 int gras_trp_sg_chunk_recv(xbt_socket_t sd,
47 char *data, unsigned long int size);
50 *** Specific plugin part
53 int placeholder; /* nothing plugin specific so far */
54 } gras_trp_sg_plug_data_t;
60 static gras_sg_portrec_t find_port(gras_hostdata_t * hd, int port)
65 xbt_assert(hd, "Please run gras_process_init on each process");
67 xbt_dynar_foreach(hd->ports, cpt, pr) {
75 *** Info about who's speaking
77 static int gras_trp_sg_my_port(xbt_socket_t s)
79 gras_trp_sg_sock_data_t sockdata = xbt_socket_get_data(s);
80 if (gras_socket_im_the_server(s))
81 return sockdata->server_port;
83 return sockdata->client_port;
85 static int gras_trp_sg_peer_port(xbt_socket_t s)
87 gras_trp_sg_sock_data_t sockdata = xbt_socket_get_data(s);
88 if (gras_socket_im_the_server(s))
89 return sockdata->client_port;
91 return sockdata->server_port;
94 static const char* gras_trp_sg_peer_name(xbt_socket_t s)
96 gras_trp_sg_sock_data_t sockdata = xbt_socket_get_data(s);
97 if (gras_socket_im_the_server(s))
98 return SIMIX_host_get_name(simcall_process_get_host(sockdata->client));
100 return SIMIX_host_get_name(simcall_process_get_host(sockdata->server));
103 static const char* gras_trp_sg_peer_proc(xbt_socket_t s) {
106 static void gras_trp_sg_peer_proc_set(xbt_socket_t s,char *name) {
110 void gras_trp_sg_setup(xbt_trp_plugin_t plug)
112 plug->my_port = gras_trp_sg_my_port;
113 plug->peer_port = gras_trp_sg_peer_port;
114 plug->peer_name = gras_trp_sg_peer_name;
115 plug->peer_proc = gras_trp_sg_peer_proc;
116 plug->peer_proc_set = gras_trp_sg_peer_proc_set;
118 gras_trp_sg_plug_data_t *data = xbt_new(gras_trp_sg_plug_data_t, 1);
122 plug->socket_client = gras_trp_sg_socket_client;
123 plug->socket_server = gras_trp_sg_socket_server;
124 plug->socket_close = gras_trp_sg_socket_close;
126 plug->raw_send = gras_trp_sg_chunk_send_raw;
127 plug->send = gras_trp_sg_chunk_send;
128 plug->raw_recv = plug->recv = gras_trp_sg_chunk_recv;
130 plug->flush = NULL; /* nothing cached */
133 void gras_trp_sg_socket_client(xbt_trp_plugin_t self,
136 /* OUT */ xbt_socket_t sock)
141 gras_trp_sg_sock_data_t data;
142 gras_sg_portrec_t pr;
144 /* make sure this socket will reach someone */
145 if (!(peer = simcall_host_get_by_name(host)))
146 THROWF(mismatch_error, 0,
147 "Can't connect to %s: no such host.\n", host);
149 if (!(hd = (gras_hostdata_t *) simcall_host_get_data(peer)))
150 THROWF(mismatch_error, 0,
151 "can't connect to %s: no process on this host",
154 pr = find_port(hd, port);
157 THROWF(mismatch_error, 0,
158 "can't connect to %s:%d, no process listen on this port",
162 /* Ensure that the listener is expecting the kind of stuff we want to send */
163 if (pr->meas && !sock->meas) {
164 THROWF(mismatch_error, 0,
165 "can't connect to %s:%d in regular mode, the process listen "
166 "in measurement mode on this port", host,
169 if (!pr->meas && sock->meas) {
170 THROWF(mismatch_error, 0,
171 "can't connect to %s:%d in measurement mode, the process listen "
172 "in regular mode on this port", host,
176 /* create simulation data of the socket */
177 data = xbt_new0(s_gras_trp_sg_sock_data_t, 1);
178 data->client = SIMIX_process_self();
179 data->server = pr->server;
180 data->server_port = port;
181 data->client_port = gras_os_myport();
183 /* initialize synchronization stuff on the socket */
184 data->rdv_server = pr->rdv;
185 data->rdv_client = simcall_rdv_create(NULL);
186 data->comm_recv = simcall_comm_irecv(data->rdv_client, &data->msg, NULL, NULL, NULL);
188 /* connect that simulation data to the socket */
192 XBT_DEBUG("%s (PID %d) connects in %s mode to %s:%d (rdv_ser:%p, rdv_cli:%p, comm:%p)",
193 simcall_process_get_name(SIMIX_process_self()), gras_os_getpid(),
194 sock->meas ? "meas" : "regular", host, port,
195 data->rdv_server,data->rdv_client,data->comm_recv);
198 void gras_trp_sg_socket_server(xbt_trp_plugin_t self, int port, xbt_socket_t sock)
201 gras_hostdata_t *hd =
202 (gras_hostdata_t *) SIMIX_host_self_get_data();
203 gras_sg_portrec_t pr;
204 gras_trp_sg_sock_data_t data;
206 xbt_assert(hd, "Please run gras_process_init on each process");
210 /* Check whether a server is already listening on that port or not */
211 pr = find_port(hd, port);
214 THROWF(mismatch_error, 0,
215 "can't listen on address %s:%d: port already in use.",
216 SIMIX_host_self_get_name(), port);
218 /* This port is free, let's take it */
219 pr = xbt_new(s_gras_sg_portrec_t, 1);
221 pr->meas = sock->meas;
222 pr->server = SIMIX_process_self();
223 xbt_dynar_push(hd->ports, &pr);
224 pr->rdv = simcall_rdv_create(NULL);
226 /* Create the socket */
227 data = xbt_new0(s_gras_trp_sg_sock_data_t, 1);
228 data->server = SIMIX_process_self();
229 data->server_port = port;
231 data->rdv_server = pr->rdv;
232 data->rdv_client = NULL;
233 data->comm_recv = simcall_comm_irecv(pr->rdv, &data->msg, NULL, NULL, NULL);
238 ("'%s' (%d) ears on %s:%d%s (%p; data:%p); Here rdv: %p; Remote rdv: %p; Comm %p",
239 simcall_process_get_name(SIMIX_process_self()), gras_os_getpid(),
240 SIMIX_host_self_get_name(), port,
241 sock->meas ? " (mode meas)" : "", sock, data,
243 SIMIX_process_self())? data->rdv_server : data->rdv_client,
245 SIMIX_process_self())? data->rdv_client : data->rdv_server,
250 void gras_trp_sg_socket_close(xbt_socket_t sock)
252 gras_hostdata_t *hd =
253 (gras_hostdata_t *) SIMIX_host_self_get_data();
255 gras_sg_portrec_t pr;
257 XBT_IN(" (sock=%p)", sock);
262 xbt_assert(hd, "Please run gras_process_init on each process");
264 gras_trp_sg_sock_data_t sockdata = sock->data;
266 if (sock->incoming && !sock->outgoing && sockdata->server_port >= 0) {
267 /* server mode socket. Unregister it from 'OS' tables */
268 xbt_dynar_foreach(hd->ports, cpt, pr) {
269 XBT_DEBUG("Check pr %u of %lu", cpt, xbt_dynar_length(hd->ports));
270 if (pr->port == sockdata->server_port) {
271 xbt_dynar_cursor_rm(hd->ports, &cpt);
277 ("socket_close called on the unknown incoming socket %p (port=%d)",
278 sock, sockdata->server_port);
280 /* FIXME: kill the rdv point if receiver side */
290 void gras_trp_sg_chunk_send(xbt_socket_t sock,
292 unsigned long int size, int stable_ignored)
294 gras_trp_sg_chunk_send_raw(sock, data, size);
297 void gras_trp_sg_chunk_send_raw(xbt_socket_t sock,
298 const char *data, unsigned long int size)
302 static unsigned int count = 0;
304 smx_action_t act; /* simix action */
305 gras_trp_procdata_t trp_remote_proc;
306 gras_msg_procdata_t msg_remote_proc;
307 gras_msg_t msg; /* message to send */
309 //gras_trp_sg_sock_data_t sock_data = (gras_trp_sg_sock_data_t) sock->data;
310 xbt_assert(sock->meas,
311 "SG chunk exchange shouldn't be used on non-measurement sockets");
314 /* creates simix action and waits its ends, waits in the sender host
317 if (XBT_LOG_ISENABLED(gras_trp_sg, xbt_log_priority_debug)) {
318 smx_process_t remote_dude =
319 (sock_data->server ==
320 SIMIX_process_self())? (sock_data->client) : (sock_data->server);
321 smx_host_t remote_host = simcall_process_get_host(remote_dude);
324 //SIMIX_network_send(sock_data->rdv,size,1,-1,NULL,0,NULL,NULL);
329 int gras_trp_sg_chunk_recv(xbt_socket_t sock,
330 char *data, unsigned long int size)
332 //gras_trp_sg_sock_data_t *sock_data =
333 // (gras_trp_sg_sock_data_t *) sock->data;
335 //simcall_comm_recv(sock_data->rdv,-1,NULL,0,NULL);
338 gras_trp_sg_sock_data_t *remote_sock_data;
339 xbt_socket_t remote_socket = NULL;
341 gras_msg_procdata_t msg_procdata =
342 (gras_msg_procdata_t) gras_libdata_by_name("gras_msg");
343 gras_trp_procdata_t trp_proc =
344 (gras_trp_procdata_t) gras_libdata_by_id(gras_trp_libdata_id);
346 xbt_assert(sock->meas,
347 "SG chunk exchange shouldn't be used on non-measurement sockets");
348 xbt_queue_shift_timed(trp_proc->meas_selectable_sockets,
351 if (remote_socket == NULL) {
352 THROWF(timeout_error, 0, "Timeout");
355 remote_sock_data = (gras_trp_sg_sock_data_t *) remote_socket->data;
356 msg_got = xbt_fifo_shift(msg_procdata->msg_to_receive_queue_meas);
358 sock_data = (gras_trp_sg_sock_data_t *) sock->data;
360 /* ok, I'm here, you can continue the communication */
361 simcall_cond_signal(remote_sock_data->cond);
363 simcall_mutex_lock(remote_sock_data->mutex);
364 /* wait for communication end */
365 simcall_cond_wait(remote_sock_data->cond, remote_sock_data->mutex);
367 if (msg_got->payl_size != size)
368 THROWF(mismatch_error, 0,
369 "Got %d bytes when %ld where expected (in %s->%s:%d)",
370 msg_got->payl_size, size,
371 simcall_host_get_name(sock_data->to_host),
372 SIMIX_host_self_get_name(), sock->peer_port);
375 memcpy(data, msg_got->payl, size);
377 xbt_free(msg_got->payl);
380 simcall_mutex_unlock(remote_sock_data->mutex);