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 "gras/Msg/msg_private.h"
16 #include "gras/Transport/transport_private.h"
17 #include "gras/Virtu/virtu_sg.h"
19 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(gras_trp_sg, gras_trp,
20 "SimGrid pseudo-transport");
26 /* retrieve the port record associated to a numerical port on an host */
27 static void find_port(gras_hostdata_t * hd, int port,
28 gras_sg_portrec_t * hpd);
31 void gras_trp_sg_socket_client(gras_trp_plugin_t self,
32 /* OUT */ gras_socket_t sock);
33 void gras_trp_sg_socket_server(gras_trp_plugin_t self,
34 /* OUT */ gras_socket_t sock);
35 void gras_trp_sg_socket_close(gras_socket_t sd);
37 void gras_trp_sg_chunk_send_raw(gras_socket_t sd,
38 const char *data, unsigned long int size);
39 void gras_trp_sg_chunk_send(gras_socket_t sd,
41 unsigned long int size, int stable_ignored);
43 int gras_trp_sg_chunk_recv(gras_socket_t sd,
44 char *data, unsigned long int size);
47 *** Specific plugin part
50 int placeholder; /* nothing plugin specific so far */
51 } gras_trp_sg_plug_data_t;
57 static void find_port(gras_hostdata_t * hd, int port, gras_sg_portrec_t * hpd)
62 xbt_assert0(hd, "Please run gras_process_init on each process");
64 xbt_dynar_foreach(hd->ports, cpt, pr) {
65 if (pr.port == port) {
66 memcpy(hpd, &pr, sizeof(gras_sg_portrec_t));
70 THROW1(mismatch_error, 0, "Unable to find any portrec for port #%d", port);
74 void gras_trp_sg_setup(gras_trp_plugin_t plug)
77 gras_trp_sg_plug_data_t *data = xbt_new(gras_trp_sg_plug_data_t, 1);
81 plug->socket_client = gras_trp_sg_socket_client;
82 plug->socket_server = gras_trp_sg_socket_server;
83 plug->socket_close = gras_trp_sg_socket_close;
85 plug->raw_send = gras_trp_sg_chunk_send_raw;
86 plug->send = gras_trp_sg_chunk_send;
87 plug->raw_recv = plug->recv = gras_trp_sg_chunk_recv;
89 plug->flush = NULL; /* nothing cached */
92 void gras_trp_sg_socket_client(gras_trp_plugin_t self,
93 /* OUT */ gras_socket_t sock)
99 gras_trp_sg_sock_data_t *data;
100 gras_sg_portrec_t pr;
102 /* make sure this socket will reach someone */
103 if (!(peer = SIMIX_host_get_by_name(sock->peer_name)))
104 THROW1(mismatch_error, 0,
105 "Can't connect to %s: no such host.\n", sock->peer_name);
107 if (!(hd = (gras_hostdata_t *) SIMIX_host_get_data(peer)))
108 THROW1(mismatch_error, 0,
109 "can't connect to %s: no process on this host", sock->peer_name);
112 find_port(hd, sock->peer_port, &pr);
115 if (e.category == mismatch_error) {
117 THROW2(mismatch_error, 0,
118 "can't connect to %s:%d, no process listen on this port",
119 sock->peer_name, sock->peer_port);
124 if (pr.meas && !sock->meas) {
125 THROW2(mismatch_error, 0,
126 "can't connect to %s:%d in regular mode, the process listen "
127 "in measurement mode on this port", sock->peer_name,
130 if (!pr.meas && sock->meas) {
131 THROW2(mismatch_error, 0,
132 "can't connect to %s:%d in measurement mode, the process listen "
133 "in regular mode on this port", sock->peer_name, sock->peer_port);
135 /* create the socket */
136 data = xbt_new(gras_trp_sg_sock_data_t, 1);
137 data->from_process = SIMIX_process_self();
138 data->to_process = pr.process;
139 data->to_host = peer;
141 /* initialize mutex and condition of the socket */
142 data->rdv_server = pr.rdv;
143 data->rdv_client = SIMIX_rdv_create(NULL);
149 DEBUG5("%s (PID %d) connects in %s mode to %s:%d",
150 SIMIX_process_get_name(SIMIX_process_self()), gras_os_getpid(),
151 sock->meas ? "meas" : "regular", sock->peer_name, sock->peer_port);
154 void gras_trp_sg_socket_server(gras_trp_plugin_t self, gras_socket_t sock)
157 gras_hostdata_t *hd =
158 (gras_hostdata_t *) SIMIX_host_get_data(SIMIX_host_self());
159 gras_sg_portrec_t pr;
160 gras_trp_sg_sock_data_t *data;
163 const char *host = SIMIX_host_get_name(SIMIX_host_self());
167 xbt_assert0(hd, "Please run gras_process_init on each process");
169 sock->accepting = 0; /* no such nuisance in SG */
172 find_port(hd, sock->port, &pr);
175 if (e.category == mismatch_error)
182 THROW2(mismatch_error, 0,
183 "can't listen on address %s:%d: port already in use.",
186 pr.port = sock->port;
187 pr.meas = sock->meas;
188 pr.process = SIMIX_process_self();
189 pr.rdv = SIMIX_rdv_create(NULL);
190 xbt_dynar_push(hd->ports, &pr);
192 /* Create the socket */
193 data = xbt_new(gras_trp_sg_sock_data_t, 1);
194 data->from_process = SIMIX_process_self();
195 data->to_process = NULL;
196 data->to_host = SIMIX_host_self();
197 data->rdv_server = pr.rdv;
198 data->rdv_client = NULL;
200 data->comm_recv = SIMIX_network_irecv(pr.rdv,NULL,0);
201 INFO1("Comm %p",data->comm_recv);
205 VERB6("'%s' (%d) ears on %s:%d%s (%p)",
206 SIMIX_process_get_name(SIMIX_process_self()), gras_os_getpid(),
207 host, sock->port, sock->meas ? " (mode meas)" : "", sock);
211 void gras_trp_sg_socket_close(gras_socket_t sock)
213 gras_hostdata_t *hd =
214 (gras_hostdata_t *) SIMIX_host_get_data(SIMIX_host_self());
216 gras_sg_portrec_t pr;
218 XBT_IN1(" (sock=%p)", sock);
223 xbt_assert0(hd, "Please run gras_process_init on each process");
226 /* FIXME: kill the rdv point if receiver side */
230 if (sock->incoming && !sock->outgoing && sock->port >= 0) {
231 /* server mode socket. Unregister it from 'OS' tables */
232 xbt_dynar_foreach(hd->ports, cpt, pr) {
233 DEBUG2("Check pr %d of %lu", cpt, xbt_dynar_length(hd->ports));
234 if (pr.port == sock->port) {
235 xbt_dynar_cursor_rm(hd->ports, &cpt);
240 WARN2("socket_close called on the unknown incoming socket %p (port=%d)",
251 void gras_trp_sg_chunk_send(gras_socket_t sock,
253 unsigned long int size, int stable_ignored)
255 gras_trp_sg_chunk_send_raw(sock, data, size);
258 void gras_trp_sg_chunk_send_raw(gras_socket_t sock,
259 const char *data, unsigned long int size)
263 static unsigned int count = 0;
265 smx_action_t act; /* simix action */
266 gras_trp_procdata_t trp_remote_proc;
267 gras_msg_procdata_t msg_remote_proc;
268 gras_msg_t msg; /* message to send */
271 gras_trp_sg_sock_data_t *sock_data = (gras_trp_sg_sock_data_t *) sock->data;
272 xbt_assert0(sock->meas,
273 "SG chunk exchange shouldn't be used on non-measurement sockets");
276 /* creates simix action and waits its ends, waits in the sender host
278 DEBUG4("send chunk from %s to %s:%d (size=%ld)",
279 SIMIX_host_get_name(SIMIX_host_self()),
280 SIMIX_host_get_name(sock_data->to_host), sock->peer_port, size);
281 //SIMIX_network_send(sock_data->rdv,size,1,-1,NULL,0,NULL,NULL);
285 int gras_trp_sg_chunk_recv(gras_socket_t sock,
286 char *data, unsigned long int size)
288 //gras_trp_sg_sock_data_t *sock_data =
289 // (gras_trp_sg_sock_data_t *) sock->data;
291 //SIMIX_network_recv(sock_data->rdv,-1,NULL,0,NULL);
294 gras_trp_sg_sock_data_t *remote_sock_data;
295 gras_socket_t remote_socket = NULL;
297 gras_msg_procdata_t msg_procdata =
298 (gras_msg_procdata_t) gras_libdata_by_name("gras_msg");
299 gras_trp_procdata_t trp_proc =
300 (gras_trp_procdata_t) gras_libdata_by_id(gras_trp_libdata_id);
302 xbt_assert0(sock->meas,
303 "SG chunk exchange shouldn't be used on non-measurement sockets");
304 xbt_queue_shift_timed(trp_proc->meas_selectable_sockets,
307 if (remote_socket == NULL) {
308 THROW0(timeout_error, 0, "Timeout");
311 remote_sock_data = (gras_trp_sg_sock_data_t *) remote_socket->data;
312 msg_got = xbt_fifo_shift(msg_procdata->msg_to_receive_queue_meas);
314 sock_data = (gras_trp_sg_sock_data_t *) sock->data;
316 /* ok, I'm here, you can continue the communication */
317 SIMIX_cond_signal(remote_sock_data->cond);
319 SIMIX_mutex_lock(remote_sock_data->mutex);
320 /* wait for communication end */
321 SIMIX_cond_wait(remote_sock_data->cond, remote_sock_data->mutex);
323 if (msg_got->payl_size != size)
324 THROW5(mismatch_error, 0,
325 "Got %d bytes when %ld where expected (in %s->%s:%d)",
326 msg_got->payl_size, size,
327 SIMIX_host_get_name(sock_data->to_host),
328 SIMIX_host_get_name(SIMIX_host_self()), sock->peer_port);
331 memcpy(data, msg_got->payl, size);
334 xbt_free(msg_got->payl);
337 SIMIX_mutex_unlock(remote_sock_data->mutex);