/* ping - ping/pong demo of GRAS features */
-/* Copyright (c) 2003, 2004 Martin Quinson. All rights reserved. */
+/* Copyright (c) 2003, 2004, 2005 Martin Quinson. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
-#include <stdio.h>
-#include <stdlib.h>
-#include <signal.h>
-
#include "gras.h"
XBT_LOG_NEW_DEFAULT_CATEGORY(Ping,"Messages specific to this example");
* Comon code
* **********************************************************************/
-typedef struct {
- int dummy;
-} msg_ping_t;
-
-/* Function prototypes */
-void register_messages(void);
-
-/* Code */
-void register_messages(void) {
-
+static void register_messages(void) {
gras_msgtype_declare("ping", gras_datadesc_by_name("int"));
gras_msgtype_declare("pong", gras_datadesc_by_name("int"));
}
xbt_error_t errcode;
int msg=*(int*)payload_data;
- gras_msgtype_t *pong_t=NULL;
- server_data_t *g=(server_data_t*)gras_userdata_get();
+ server_data_t *globals=(server_data_t*)gras_userdata_get();
- g->endcondition = 0;
+ globals->endcondition = 0;
INFO3("SERVER: >>>>>>>> Got message PING(%d) from %s:%d <<<<<<<<",
msg,
- gras_socket_peer_name(expeditor),
- gras_socket_peer_port(expeditor));
+ gras_socket_peer_name(expeditor), gras_socket_peer_port(expeditor));
msg = 4321;
errcode = gras_msg_send(expeditor, gras_msgtype_by_name("pong"), &msg);
if (errcode != no_error) {
ERROR1("SERVER: Unable answer with PONG: %s\n", xbt_error_name(errcode));
- gras_socket_close(g->sock);
+ gras_socket_close(globals->sock);
return 1;
}
INFO0("SERVER: >>>>>>>> Answed with PONG(4321) <<<<<<<<");
- g->endcondition = 1;
+ globals->endcondition = 1;
gras_socket_close(expeditor);
return 1;
}
int server (int argc,char *argv[]) {
xbt_error_t errcode;
- server_data_t *g;
- gras_msgtype_t *ping_msg=NULL;
+ server_data_t *globals;
int port = 4000;
gras_init(&argc,argv, NULL);
- g=gras_userdata_new(server_data_t);
+ globals=gras_userdata_new(server_data_t);
if (argc == 2) {
port=atoi(argv[1]);
INFO1("Launch server (port=%d)", port);
- if ((errcode=gras_socket_server(port,&(g->sock)))) {
+ if ((errcode=gras_socket_server(port,&(globals->sock)))) {
CRITICAL1("Error %s encountered while opening the server socket",
xbt_error_name(errcode));
return 1;
gras_cb_register(gras_msgtype_by_name("ping"),&server_cb_ping_handler);
INFO1("SERVER: >>>>>>>> Listening on port %d <<<<<<<<",
- gras_socket_my_port(g->sock));
- g->endcondition=0;
+ gras_socket_my_port(globals->sock));
+ globals->endcondition=0;
errcode = gras_msg_handle(600.0);
if (errcode != no_error)
return errcode;
- if (g->endcondition)
+ if (!globals->endcondition)
+ WARN0("An error occured, the endcondition was not set by the callback");
if (!gras_if_RL())
gras_os_sleep(1,0);
- gras_socket_close(g->sock);
- free(g);
+ gras_socket_close(globals->sock);
+ free(globals);
gras_exit();
INFO0("SERVER: Done.");
return no_error;
* Client code
* **********************************************************************/
-/* Global private data */
-typedef struct {
- gras_socket_t sock;
-} client_data_t;
-
/* Function prototypes */
int client (int argc,char *argv[]);
int client(int argc,char *argv[]) {
- xbt_error_t errcode;
- client_data_t *g;
+ xbt_error_t errcode;
+ gras_socket_t toserver; /* peer */
gras_socket_t from;
int ping, pong;
int port = 4000;
gras_init(&argc, argv, NULL);
- g=gras_userdata_new(client_data_t);
if (argc == 3) {
host=argv[1];
INFO2("Launch client (server on %s:%d)",host,port);
gras_os_sleep(1,0); /* Wait for the server startup */
- if ((errcode=gras_socket_client(host,port,&(g->sock)))) {
+ if ((errcode=gras_socket_client(host,port,&toserver))) {
ERROR1("Client: Unable to connect to the server. Got %s",
xbt_error_name(errcode));
return 1;
register_messages();
INFO2("Client: >>>>>>>> Connected to server which is on %s:%d <<<<<<<<",
- gras_socket_peer_name(g->sock),gras_socket_peer_port(g->sock));
+ gras_socket_peer_name(toserver),gras_socket_peer_port(toserver));
ping = 1234;
- errcode = gras_msg_send(g->sock, gras_msgtype_by_name("ping"), &ping);
+ errcode = gras_msg_send(toserver, gras_msgtype_by_name("ping"), &ping);
if (errcode != no_error) {
fprintf(stderr, "Client: Unable send PING to server (%s)\n",
xbt_error_name(errcode));
- gras_socket_close(g->sock);
+ gras_socket_close(toserver);
return 1;
}
INFO3("Client: >>>>>>>> Message PING(%d) sent to %s:%d <<<<<<<<",
ping,
- gras_socket_peer_name(g->sock),gras_socket_peer_port(g->sock));
+ gras_socket_peer_name(toserver),gras_socket_peer_port(toserver));
if ((errcode=gras_msg_wait(6000,gras_msgtype_by_name("pong"),
&from,&pong))) {
ERROR1("Client: Why can't I get my PONG message like everyone else (%s)?",
xbt_error_name(errcode));
- gras_socket_close(g->sock);
+ gras_socket_close(toserver);
return 1;
}
pong,
gras_socket_peer_name(from),gras_socket_peer_port(from));
- gras_socket_close(g->sock);
- free(g);
+ gras_socket_close(toserver);
gras_exit();
INFO0("Client: Done.");
return 0;