1 /* messaging - Function related to messaging code specific to SG */
3 /* Copyright (c) 2003-2005 Martin Quinson. All rights reserved. */
5 /* This program is free software; you can redistribute it and/or modify it
6 * under the terms of the license (GNU LGPL) which comes with this package. */
10 #include "gras/Virtu/virtu_sg.h"
12 #include "gras/Msg/msg_private.h"
14 #include "gras/DataDesc/datadesc_interface.h"
15 #include "gras/Transport/transport_interface.h" /* gras_trp_chunk_send/recv */
16 #include "gras/Transport/transport_private.h" /* sock->data */
18 XBT_LOG_EXTERNAL_CATEGORY(gras_msg);
19 XBT_LOG_DEFAULT_CATEGORY(gras_msg);
21 typedef void *gras_trp_bufdata_;
23 void gras_msg_send_ext(gras_socket_t sock,
24 e_gras_msg_kind_t kind,
26 gras_msgtype_t msgtype, void *payload)
29 smx_action_t act; /* simix action */
30 gras_trp_sg_sock_data_t *sock_data;
32 gras_trp_procdata_t trp_remote_proc;
33 gras_msg_procdata_t msg_remote_proc;
34 gras_msg_t msg; /* message to send */
35 int whole_payload_size = 0; /* msg->payload_size is used to memcpy the payload.
36 This is used to report the load onto the simulator. It also counts the size of pointed stuff */
38 sock_data = (gras_trp_sg_sock_data_t *) sock->data;
40 hd = (gras_hostdata_t *) SIMIX_host_get_data(SIMIX_host_self());
42 xbt_assert1(!gras_socket_is_meas(sock),
43 "Asked to send a message on the measurement socket %p", sock);
45 /*initialize gras message */
46 msg = xbt_new(s_gras_msg_t, 1);
51 if (kind == e_gras_msg_kind_rpcerror) {
52 /* error on remote host, carfull, payload is an exception */
53 msg->payl_size = gras_datadesc_size(gras_datadesc_by_name("ex_t"));
54 msg->payl = xbt_malloc(msg->payl_size);
55 whole_payload_size = gras_datadesc_memcpy(gras_datadesc_by_name("ex_t"),
57 } else if (kind == e_gras_msg_kind_rpcanswer) {
58 msg->payl_size = gras_datadesc_size(msgtype->answer_type);
60 msg->payl = xbt_malloc(msg->payl_size);
64 if (msgtype->answer_type)
65 whole_payload_size = gras_datadesc_memcpy(msgtype->answer_type,
68 msg->payl_size = gras_datadesc_size(msgtype->ctn_type);
69 msg->payl = msg->payl_size ? xbt_malloc(msg->payl_size) : NULL;
70 if (msgtype->ctn_type)
71 whole_payload_size = gras_datadesc_memcpy(msgtype->ctn_type,
75 /* put the selectable socket on the queue */
76 trp_remote_proc = (gras_trp_procdata_t)
77 gras_libdata_by_name_from_remote("gras_trp", sock_data->to_process);
79 xbt_queue_push(trp_remote_proc->msg_selectable_sockets, &sock);
81 /* put message on msg_queue */
82 msg_remote_proc = (gras_msg_procdata_t)
83 gras_libdata_by_name_from_remote("gras_msg", sock_data->to_process);
84 xbt_fifo_push(msg_remote_proc->msg_to_receive_queue, msg);
86 /* wait for the receiver */
87 SIMIX_cond_wait(sock_data->cond, sock_data->mutex);
89 /* creates simix action and waits its ends, waits in the sender host
91 act = SIMIX_action_communicate(SIMIX_host_self(),
92 sock_data->to_host, msgtype->name,
93 (double) whole_payload_size, -1);
94 SIMIX_register_action_to_condition(act, sock_data->cond);
96 VERB5("Sending to %s(%s) a message type '%s' kind '%s' ID %lu",
97 SIMIX_host_get_name(sock_data->to_host),
98 SIMIX_process_get_name(sock_data->to_process),
99 msg->type->name, e_gras_msg_kind_names[msg->kind], msg->ID);
101 SIMIX_cond_wait(sock_data->cond, sock_data->mutex);
102 SIMIX_unregister_action_to_condition(act, sock_data->cond);
103 /* error treatmeant (FIXME) */
105 /* cleanup structures */
106 SIMIX_action_destroy(act);
107 SIMIX_mutex_unlock(sock_data->mutex);
109 VERB0("Message sent");
114 * receive the next message on the given socket.
116 void gras_msg_recv(gras_socket_t sock, gras_msg_t msg)
119 gras_trp_sg_sock_data_t *sock_data;
120 gras_trp_sg_sock_data_t *remote_sock_data;
121 gras_hostdata_t *remote_hd;
123 gras_msg_procdata_t msg_procdata =
124 (gras_msg_procdata_t) gras_libdata_by_name("gras_msg");
126 xbt_assert1(!gras_socket_is_meas(sock),
127 "Asked to receive a message on the measurement socket %p",
130 xbt_assert0(msg, "msg is an out parameter of gras_msg_recv...");
132 sock_data = (gras_trp_sg_sock_data_t *) sock->data;
134 ((gras_trp_sg_sock_data_t *) sock->data)->to_socket->data;
135 DEBUG3("Remote host %s, Remote Port: %d Local port %d",
136 SIMIX_host_get_name(sock_data->to_host), sock->peer_port,
138 remote_hd = (gras_hostdata_t *) SIMIX_host_get_data(sock_data->to_host);
140 if (xbt_fifo_size(msg_procdata->msg_to_receive_queue) == 0) {
143 DEBUG1("Size msg_to_receive buffer: %d",
144 xbt_fifo_size(msg_procdata->msg_to_receive_queue));
145 msg_got = xbt_fifo_shift(msg_procdata->msg_to_receive_queue);
147 SIMIX_mutex_lock(remote_sock_data->mutex);
148 /* ok, I'm here, you can continuate the communication */
149 SIMIX_cond_signal(remote_sock_data->cond);
151 /* wait for communication end */
152 SIMIX_cond_wait(remote_sock_data->cond, remote_sock_data->mutex);
154 msg_got->expe = msg->expe;
155 memcpy(msg, msg_got, sizeof(s_gras_msg_t));
157 SIMIX_mutex_unlock(remote_sock_data->mutex);
159 VERB3("Received a message type '%s' kind '%s' ID %lu", // from %s",
160 msg->type->name, e_gras_msg_kind_names[msg->kind], msg->ID);