3 /* messaging - Function related to messaging code specific to SG */
5 /* Copyright (c) 2003-2005 Martin Quinson. All rights reserved. */
7 /* This program is free software; you can redistribute it and/or modify it
8 * under the terms of the license (GNU LGPL) which comes with this package. */
12 #include "gras/Virtu/virtu_sg.h"
14 #include "gras/Msg/msg_private.h"
16 #include "gras/DataDesc/datadesc_interface.h"
17 #include "gras/Transport/transport_interface.h" /* gras_trp_chunk_send/recv */
18 #include "gras/Transport/transport_private.h" /* sock->data */
20 XBT_LOG_EXTERNAL_CATEGORY(gras_msg);
21 XBT_LOG_DEFAULT_CATEGORY(gras_msg);
23 typedef void *gras_trp_bufdata_;
25 void gras_msg_send_ext(gras_socket_t sock,
26 e_gras_msg_kind_t kind,
28 gras_msgtype_t msgtype, void *payload)
30 gras_trp_sg_sock_data_t *sock_data;
31 gras_msg_t msg; /* message to send */
32 int whole_payload_size = 0; /* msg->payload_size is used to memcpy the payload.
33 This is used to report the load onto the simulator. It also counts the size of pointed stuff */
35 sock_data = (gras_trp_sg_sock_data_t *) sock->data;
37 xbt_assert1(!gras_socket_is_meas(sock),
38 "Asked to send a message on the measurement socket %p", sock);
40 /*initialize gras message */
41 msg = xbt_new(s_gras_msg_t, 1);
46 if (kind == e_gras_msg_kind_rpcerror) {
47 /* error on remote host, careful, payload is an exception */
48 msg->payl_size = gras_datadesc_size(gras_datadesc_by_name("ex_t"));
49 msg->payl = xbt_malloc(msg->payl_size);
50 whole_payload_size = gras_datadesc_memcpy(gras_datadesc_by_name("ex_t"),
52 } else if (kind == e_gras_msg_kind_rpcanswer) {
53 msg->payl_size = gras_datadesc_size(msgtype->answer_type);
55 msg->payl = xbt_malloc(msg->payl_size);
59 if (msgtype->answer_type)
60 whole_payload_size = gras_datadesc_memcpy(msgtype->answer_type,
63 msg->payl_size = gras_datadesc_size(msgtype->ctn_type);
64 msg->payl = msg->payl_size ? xbt_malloc(msg->payl_size) : NULL;
65 if (msgtype->ctn_type)
66 whole_payload_size = gras_datadesc_memcpy(msgtype->ctn_type,
72 VERB5("Sending to %s(%s) a message type '%s' kind '%s' ID %lu",
73 sock->peer_name,sock->peer_proc,
74 msg->type->name, e_gras_msg_kind_names[msg->kind], msg->ID);
75 SIMIX_network_send(sock_data->rdv,whole_payload_size,-1.,-1.,msg,sizeof(s_gras_msg_t),(smx_comm_t*)&(msg->comm),&msg);
77 VERB0("Message sent");
81 * receive the next message on the given socket.
83 void gras_msg_recv(gras_socket_t sock, gras_msg_t msg) {
84 gras_trp_procdata_t pd =
85 (gras_trp_procdata_t) gras_libdata_by_id(gras_trp_libdata_id);
86 gras_trp_sg_sock_data_t *sock_data;
88 xbt_assert1(!gras_socket_is_meas(sock),
89 "Asked to receive a message on the measurement socket %p",
92 xbt_assert0(msg, "msg is an out parameter of gras_msg_recv...");
94 sock_data = (gras_trp_sg_sock_data_t *) sock->data;
96 /* The message was already received while emulating the select, so simply copy it here */
97 memcpy(msg,&(sock_data->ongoing_msg),sizeof(s_gras_msg_t));
99 VERB1("Using %p as a msg",&(sock_data->ongoing_msg));
100 VERB5("Received a message type '%s' kind '%s' ID %lu from %s(%s)",
101 msg->type->name, e_gras_msg_kind_names[msg->kind], msg->ID,
102 sock->peer_name,sock->peer_proc);
104 /* Recreate another comm object to replace the one which just terminated */
105 int rank = xbt_dynar_search(pd->sockets,&sock);
106 xbt_assert0(rank>=0,"Socket not found in my array");
107 sock_data->ongoing_msg_size = sizeof(s_gras_msg_t);
108 smx_comm_t comm = SIMIX_network_irecv(sock_data->rdv,&(sock_data->ongoing_msg),&(sock_data->ongoing_msg_size));
109 xbt_dynar_set(pd->comms,rank,&comm);
112 SIMIX_network_recv(sock_data->rdv,-1.,&msg_got,NULL,&comm);
116 ((gras_trp_sg_sock_data_t *) sock->data)->to_socket->data;
117 remote_hd = (gras_hostdata_t *) SIMIX_host_get_data(sock_data->to_host);
119 if (xbt_fifo_size(msg_procdata->msg_to_receive_queue) == 0) {
122 DEBUG1("Size msg_to_receive buffer: %d",
123 xbt_fifo_size(msg_procdata->msg_to_receive_queue));
124 msg_got = xbt_fifo_shift(msg_procdata->msg_to_receive_queue);
126 SIMIX_mutex_lock(remote_sock_data->mutex);
127 /* ok, I'm here, you can continuate the communication */
128 SIMIX_cond_signal(remote_sock_data->cond);
130 /* wait for communication end */
131 INFO2("Wait communication (from %s) termination on %p",sock->peer_name,sock_data->cond);
133 SIMIX_cond_wait(remote_sock_data->cond, remote_sock_data->mutex);
135 msg_got->expe = msg->expe;
136 memcpy(msg, msg_got, sizeof(s_gras_msg_t));
138 SIMIX_mutex_unlock(remote_sock_data->mutex);