X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/ec8143ed6da4a35f7a3b5655f5d97f6508c14ae1..12538c6ab1bc03405ac74e6b2995ba1b4ee29bfa:/examples/gras/ping/ping.c diff --git a/examples/gras/ping/ping.c b/examples/gras/ping/ping.c deleted file mode 100644 index e8780f8807..0000000000 --- a/examples/gras/ping/ping.c +++ /dev/null @@ -1,200 +0,0 @@ -/* $Id$ */ - -/* ping - ping/pong demo of GRAS features */ - -/* 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 "gras.h" - -XBT_LOG_NEW_DEFAULT_CATEGORY(Ping,"Messages specific to this example"); - -/* register messages which may be sent (common to client and server) */ -static void register_messages(void) { - gras_msgtype_declare("ping", gras_datadesc_by_name("int")); - gras_msgtype_declare("pong", gras_datadesc_by_name("int")); -} - -/* Function prototypes */ -int server (int argc,char *argv[]); -int client (int argc,char *argv[]); - -/* ********************************************************************** - * Server code - * **********************************************************************/ - -/* Global private data */ -typedef struct { - gras_socket_t sock; - int endcondition; -} server_data_t; - - -static int server_cb_ping_handler(gras_msg_cb_ctx_t ctx, void *payload) { - - xbt_ex_t e; - /* 1. Get the payload into the msg variable, and retrieve my caller */ - int msg=*(int*)payload; - gras_socket_t expeditor = gras_msg_cb_ctx_from(ctx); - - /* 2. Retrieve the server's state (globals) */ - - server_data_t *globals=(server_data_t*)gras_userdata_get(); - globals->endcondition = 0; - - /* 3. Log which client connected */ - INFO3(">>>>>>>> Got message PING(%d) from %s:%d <<<<<<<<", - msg, - gras_socket_peer_name(expeditor), gras_socket_peer_port(expeditor)); - - /* 4. Change the value of the msg variable */ - msg = 4321; - /* 5. Send it back as payload of a pong message to the expeditor */ - TRY { - gras_msg_send(expeditor, gras_msgtype_by_name("pong"), &msg); - - /* 6. Deal with errors: add some details to the exception */ - } CATCH(e) { - gras_socket_close(globals->sock); - RETHROW0("Unable answer with PONG: %s"); - } - - INFO0(">>>>>>>> Answered with PONG(4321) <<<<<<<<"); - - /* 7. Set the endcondition boolean to true (and make sure the server stops after receiving it). */ - globals->endcondition = 1; - - /* 8. Make sure we don't leak sockets */ - gras_socket_close(expeditor); - - /* 9. Tell GRAS that we consummed this message */ - return 1; -} /* end_of_server_cb_ping_handler */ - -int server (int argc,char *argv[]) { - server_data_t *globals; - - int port = 4000; - - /* 1. Init the GRAS infrastructure and declare my globals */ - gras_init(&argc,argv); - globals=gras_userdata_new(server_data_t); - - /* 2. Get the port I should listen on from the command line, if specified */ - if (argc == 2) { - port=atoi(argv[1]); - } - - INFO1("Launch server (port=%d)", port); - - /* 3. Create my master socket */ - globals->sock = gras_socket_server(port); - - /* 4. Register the known messages. This function is called twice here, but it's because - this file also acts as regression test, no need to do so yourself of course. */ - register_messages(); - register_messages(); /* just to make sure it works ;) */ - - /* 5. Register my callback */ - gras_cb_register(gras_msgtype_by_name("ping"),&server_cb_ping_handler); - - INFO1(">>>>>>>> Listening on port %d <<<<<<<<", gras_socket_my_port(globals->sock)); - globals->endcondition=0; - - /* 6. Wait up to 10 minutes for an incomming message to handle */ - gras_msg_handle(600.0); - - /* 7. Housekeeping */ - if (!globals->endcondition) - WARN0("An error occured, the endcondition was not set by the callback"); - - /* 8. Free the allocated resources, and shut GRAS down */ - gras_socket_close(globals->sock); - free(globals); - gras_exit(); - - INFO0("Done."); - return 0; -} /* end_of_server */ - -/* ********************************************************************** - * Client code - * **********************************************************************/ - -/* Function prototypes */ - -int client(int argc,char *argv[]) { - xbt_ex_t e; - gras_socket_t toserver=NULL; /* peer */ - - gras_socket_t from; - int ping, pong; - - const char *host = "127.0.0.1"; - 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"); - } - INFO2("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 */ - 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)); - - /* 7. 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_socket_close(toserver); - RETHROW0("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)); - - /* 8. 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_socket_close(toserver); - RETHROW0("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)); - - /* 10. Free the allocated resources, and shut GRAS down */ - gras_socket_close(toserver); - gras_exit(); - INFO0("Done."); - return 0; -} /* end_of_client */