-/* $Id$ */
-
/* ping - ping/pong demo of GRAS features */
-/* Copyright (c) 2003, 2004, 2005 Martin Quinson. All rights reserved. */
+/* Copyright (c) 2006, 2007, 2009, 2010. The SimGrid Team.
+ * 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 "ping.h"
XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(Ping);
-int client(int argc,char *argv[]) {
- xbt_ex_t e;
- gras_socket_t toserver=NULL; /* peer */
+static xbt_socket_t try_gras_socket_client(const char *host, int port)
+{
+ volatile xbt_socket_t sock = NULL;
+ xbt_ex_t e;
+ TRY {
+ sock = gras_socket_client(host, port);
+ }
+ CATCH(e) {
+ if (e.category != system_error)
+ /* dunno what happened, let the exception go through */
+ RETHROWF("Unable to connect to the server: %s");
+ xbt_ex_free(e);
+ }
+ return sock;
+}
+
+int client(int argc, char *argv[])
+{
+ xbt_socket_t toserver = NULL; /* peer */
- gras_socket_t from;
+ xbt_socket_t from;
int ping, pong;
const char *host = "127.0.0.1";
- int port = 4000;
+ int port = 4000;
/* 1. Init the GRAS's infrastructure */
gras_init(&argc, argv);
-
+
/* 2. Get the server's address. The command line override defaults when specified */
if (argc == 3) {
- host=argv[1];
- port=atoi(argv[2]);
- }
-
- INFO2("Launch client (server on %s:%d)",host,port);
-
- /* 3. Wait for the server startup */
- gras_os_sleep(1);
-
- /* 4. Create a socket to speak to the server */
- TRY {
- toserver=gras_socket_client(host,port);
- } CATCH(e) {
- RETHROW0("Unable to connect to the server: %s");
+ host = argv[1];
+ port = atoi(argv[2]);
}
- INFO2("Connected to %s:%d.",host,port);
+ XBT_INFO("Launch client (server on %s:%d)", host, port);
+
+ /* 3. Create a socket to speak to the server */
+ while (!(toserver = try_gras_socket_client(host, port)))
+ gras_os_sleep(0.05);
+
+ XBT_INFO("Connected to %s:%d.", host, port);
- /* 5. Register the messages.
- See, it doesn't have to be done completely at the beginning, only before use */
+ /* 4. Register the messages.
+ See, it doesn't have to be done completely at the beginning, only before use */
ping_register_messages();
- /* 6. Keep the user informed of what's going on */
- INFO2(">>>>>>>> Connected to server which is on %s:%d <<<<<<<<",
- gras_socket_peer_name(toserver),gras_socket_peer_port(toserver));
+ /* 5. Keep the user informed of what's going on */
+ XBT_INFO(">>>>>>>> Connected to server which is on %s:%d <<<<<<<<",
+ xbt_socket_peer_name(toserver), xbt_socket_peer_port(toserver));
- /* 7. Prepare and send the ping message to the server */
+ /* 6. Prepare and send the ping message to the server */
ping = 1234;
TRY {
- gras_msg_send(toserver, gras_msgtype_by_name("ping"), &ping);
- } CATCH(e) {
+ gras_msg_send(toserver, "ping", &ping);
+ }
+ CATCH_ANONYMOUS {
gras_socket_close(toserver);
- RETHROW0("Failed to send PING to server: %s");
+ RETHROWF("Failed to send PING to server: %s");
}
- INFO3(">>>>>>>> Message PING(%d) sent to %s:%d <<<<<<<<",
- ping,
- gras_socket_peer_name(toserver),gras_socket_peer_port(toserver));
+ XBT_INFO(">>>>>>>> Message PING(%d) sent to %s:%d <<<<<<<<",
+ ping, xbt_socket_peer_name(toserver), xbt_socket_peer_port(toserver));
- /* 8. Wait for the answer from the server, and deal with issues */
+ /* 7. Wait for the answer from the server, and deal with issues */
TRY {
- gras_msg_wait(6000,gras_msgtype_by_name("pong"),
- &from,&pong);
- } CATCH(e) {
+ gras_msg_wait(6000, "pong", &from, &pong);
+ }
+ CATCH_ANONYMOUS {
gras_socket_close(toserver);
- RETHROW0("Why can't I get my PONG message like everyone else: %s");
+ RETHROWF("Why can't I get my PONG message like everyone else: %s");
}
- /* 9. Keep the user informed of what's going on, again */
- INFO3(">>>>>>>> Got PONG(%d) from %s:%d <<<<<<<<",
- pong,
- gras_socket_peer_name(from),gras_socket_peer_port(from));
+ /* 8. Keep the user informed of what's going on, again */
+ XBT_INFO(">>>>>>>> Got PONG(%d) from %s:%d <<<<<<<<",
+ pong, xbt_socket_peer_name(from), xbt_socket_peer_port(from));
- /* 10. Free the allocated resources, and shut GRAS down */
+ /* 9. Free the allocated resources, and shut GRAS down */
gras_socket_close(toserver);
+ XBT_INFO("Done.");
gras_exit();
- INFO0("Done.");
return 0;
-} /* end_of_client */
+} /* end_of_client */
