1 /* messaging - Function related to messaging code specific to SG */
3 /* Copyright (c) 2005, 2006, 2007, 2008, 2009, 2010. The SimGrid Team.
4 * All rights reserved. */
6 /* This program is free software; you can redistribute it and/or modify it
7 * under the terms of the license (GNU LGPL) which comes with this package. */
11 #include "gras/Virtu/virtu_sg.h"
13 #include "gras/Msg/msg_private.h"
15 #include "gras/DataDesc/datadesc_interface.h"
16 #include "gras/Transport/transport_interface.h" /* gras_trp_chunk_send/recv */
17 #include "gras/Transport/transport_private.h" /* sock->data */
19 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(gras_msg);
21 typedef void *gras_trp_bufdata_;
23 gras_msg_t gras_msg_recv_any(void) {
24 gras_trp_procdata_t trp_proc =
25 (gras_trp_procdata_t) gras_libdata_by_name("gras_trp");
27 /* Build a dynar of all communications I could get something from */
28 xbt_dynar_t comms = xbt_dynar_new(sizeof(smx_comm_t),NULL);
31 gras_trp_sg_sock_data_t *sock_data;
32 xbt_dynar_foreach(trp_proc->sockets,cursor,sock) {
33 sock_data = (gras_trp_sg_sock_data_t *) sock->data;
34 if (sock_data->comm_recv) {
35 INFO2("Copy %p of size %d",sock_data->comm_recv,sizeof(smx_comm_t));
36 xbt_dynar_push(comms,&(sock_data->comm_recv));
39 VERB1("Wait on %ld 'sockets'",xbt_dynar_length(comms));
40 /* Wait for the end of any of these communications */
41 int got = SIMIX_network_waitany(comms);
44 /* retrieve the message sent in that communication */
45 xbt_dynar_get_cpy(comms,got,&(comm));
46 msg=SIMIX_communication_get_data(comm);
47 VERB1("Got something. Communication %p's over",comm);
49 /* Reinstall a waiting communication on that rdv */
50 /* Get the sock again */
51 xbt_dynar_foreach(trp_proc->sockets,cursor,sock) {
52 sock_data = (gras_trp_sg_sock_data_t *) sock->data;
53 if (sock_data->comm_recv && sock_data->comm_recv == comm)
56 sock_data = (gras_trp_sg_sock_data_t *) sock->data;
57 sock_data->comm_recv = SIMIX_network_irecv(
58 sock_data->im_server?sock_data->rdv_server:sock_data->rdv_client,
60 SIMIX_communication_destroy(comm);
66 void gras_msg_send_ext(gras_socket_t sock,
67 e_gras_msg_kind_t kind,
69 gras_msgtype_t msgtype, void *payload)
71 int whole_payload_size = 0; /* msg->payload_size is used to memcpy the payload.
72 This is used to report the load onto the simulator. It also counts the size of pointed stuff */
73 gras_msg_t msg; /* message to send */
75 /*initialize gras message */
76 msg = xbt_new(s_gras_msg_t, 1);
81 if (kind == e_gras_msg_kind_rpcerror) {
82 /* error on remote host, careful, payload is an exception */
83 msg->payl_size = gras_datadesc_size(gras_datadesc_by_name("ex_t"));
84 msg->payl = xbt_malloc(msg->payl_size);
85 whole_payload_size = gras_datadesc_memcpy(gras_datadesc_by_name("ex_t"),
87 } else if (kind == e_gras_msg_kind_rpcanswer) {
88 msg->payl_size = gras_datadesc_size(msgtype->answer_type);
90 msg->payl = xbt_malloc(msg->payl_size);
94 if (msgtype->answer_type)
95 whole_payload_size = gras_datadesc_memcpy(msgtype->answer_type,
98 msg->payl_size = gras_datadesc_size(msgtype->ctn_type);
99 msg->payl = msg->payl_size ? xbt_malloc(msg->payl_size) : NULL;
100 if (msgtype->ctn_type)
101 whole_payload_size = gras_datadesc_memcpy(msgtype->ctn_type,
104 gras_trp_sg_sock_data_t *sock_data = (gras_trp_sg_sock_data_t *) sock->data;
106 SIMIX_network_send(sock_data->im_server ? sock_data->rdv_client : sock_data->rdv_client,
107 whole_payload_size,-1,-1,&msg,sizeof(void*),&comm,msg);
110 smx_action_t act; /* simix action */
112 gras_trp_procdata_t trp_remote_proc;
113 gras_msg_procdata_t msg_remote_proc;
115 sock_data = (gras_trp_sg_sock_data_t *) sock->data;
117 hd = (gras_hostdata_t *) SIMIX_host_get_data(SIMIX_host_self());
119 xbt_assert1(!gras_socket_is_meas(sock),
120 "Asked to send a message on the measurement socket %p", sock);
123 /* put the selectable socket on the queue */
124 trp_remote_proc = (gras_trp_procdata_t)
125 gras_libdata_by_name_from_remote("gras_trp", sock_data->to_process);
127 xbt_queue_push(trp_remote_proc->msg_selectable_sockets, &sock);
129 /* put message on msg_queue */
130 msg_remote_proc = (gras_msg_procdata_t)
131 gras_libdata_by_name_from_remote("gras_msg", sock_data->to_process);
132 xbt_fifo_push(msg_remote_proc->msg_to_receive_queue, msg);
134 /* wait for the receiver */
135 SIMIX_cond_wait(sock_data->cond, sock_data->mutex);
137 /* creates simix action and waits its ends, waits in the sender host
139 act = SIMIX_action_communicate(SIMIX_host_self(),
140 sock_data->to_host, msgtype->name,
141 (double) whole_payload_size, -1);
142 SIMIX_register_action_to_condition(act, sock_data->cond);
144 VERB5("Sending to %s(%s) a message type '%s' kind '%s' ID %lu",
145 SIMIX_host_get_name(sock_data->to_host),
146 SIMIX_process_get_name(sock_data->to_process),
147 msg->type->name, e_gras_msg_kind_names[msg->kind], msg->ID);
149 SIMIX_cond_wait(sock_data->cond, sock_data->mutex);
150 SIMIX_unregister_action_to_condition(act, sock_data->cond);
151 /* error treatmeant (FIXME) */
153 /* cleanup structures */
154 SIMIX_action_destroy(act);
155 SIMIX_mutex_unlock(sock_data->mutex);
157 VERB0("Message sent");
163 * receive the next message on the given socket.
165 void gras_msg_recv(gras_socket_t sock, gras_msg_t msg)
168 gras_trp_sg_sock_data_t *sock_data =
169 (gras_trp_sg_sock_data_t *) sock->data;
171 size_t size_got = sizeof(void*);
173 xbt_assert1(!gras_socket_is_meas(sock),
174 "Asked to receive a message on the measurement socket %p",
177 SIMIX_network_recv(sock_data->rdv,-1,&msg_got,&size_got,NULL);
179 gras_trp_sg_sock_data_t *remote_sock_data;
180 gras_hostdata_t *remote_hd;
181 gras_msg_procdata_t msg_procdata =
182 (gras_msg_procdata_t) gras_libdata_by_name("gras_msg");
184 xbt_assert0(msg, "msg is an out parameter of gras_msg_recv...");
186 sock_data = (gras_trp_sg_sock_data_t *) sock->data;
188 ((gras_trp_sg_sock_data_t *) sock->data)->to_socket->data;
189 DEBUG3("Remote host %s, Remote Port: %d Local port %d",
190 SIMIX_host_get_name(sock_data->to_host), sock->peer_port,
192 remote_hd = (gras_hostdata_t *) SIMIX_host_get_data(sock_data->to_host);
194 if (xbt_fifo_size(msg_procdata->msg_to_receive_queue) == 0) {
197 DEBUG1("Size msg_to_receive buffer: %d",
198 xbt_fifo_size(msg_procdata->msg_to_receive_queue));
199 msg_got = xbt_fifo_shift(msg_procdata->msg_to_receive_queue);
201 SIMIX_mutex_lock(remote_sock_data->mutex);
202 /* ok, I'm here, you can continuate the communication */
203 SIMIX_cond_signal(remote_sock_data->cond);
205 /* wait for communication end */
206 SIMIX_cond_wait(remote_sock_data->cond, remote_sock_data->mutex);
208 msg_got->expe = msg->expe;
209 memcpy(msg, msg_got, sizeof(s_gras_msg_t));
211 SIMIX_mutex_unlock(remote_sock_data->mutex);
213 VERB3("Received a message type '%s' kind '%s' ID %lu", // from %s",
214 msg->type->name, e_gras_msg_kind_names[msg->kind], msg->ID);