/* Callback function */
static int node_cb_stoken_handler(gras_socket_t expeditor,
void *payload_data) {
-
- xbt_error_t errcode;
+
+ xbt_ex_t e;
/* 1. Get the payload into the msg variable */
int msg=*(int*)payload_data;
/* 6. Send it as payload of a stoken message to the successor */
- errcode = gras_msg_send(globals->tosuccessor,
- gras_msgtype_by_name("stoken"), &msg);
+ TRY {
+ gras_msg_send(globals->tosuccessor,
+ gras_msgtype_by_name("stoken"), &msg);
/* 7. Deal with errors */
- if (errcode != no_error) {
- ERROR1("Unable to forward token: %s\n", xbt_error_name(errcode));
+ } CATCH(e) {
gras_socket_close(globals->sock);
- return 1;
+ RETHROW0("Unable to forward token: %s");
}
}
reused by our predecessor.
Closing this side would thus create troubles */
- /* 9. Decrease the remaining_loop integer. */
+ /* 8. Decrease the remaining_loop integer. */
globals->remaining_loop -= 1;
- /* 10. Repport the hop number to the user at the end */
+ /* 9. Repport the hop number to the user at the end */
if (globals->remaining_loop == -1 && globals->create) {
INFO1("Shut down the token-ring. There was %d hops.",msg);
}
- /* 11. Tell GRAS that we consummed this message */
+ /* 10. Tell GRAS that we consummed this message */
return 1;
} /* end_of_node_cb_stoken_handler */
int node (int argc,char *argv[]) {
- xbt_error_t errcode;
node_data_t *globals;
const char *host;
int myport;
int peerport;
+
+ xbt_ex_t e;
/* 1. Init the GRAS infrastructure and declare my globals */
gras_init(&argc,argv);
gras_os_getpid(), host,peerport, myport);
/* 4. Create my master socket for listening */
- if ((errcode=gras_socket_server(myport,&(globals->sock)))) {
- CRITICAL1("Error %s encountered while opening the server socket. Bailing out.",
- xbt_error_name(errcode));
- return 1;
- }
+ globals->sock = gras_socket_server(myport);
gras_os_sleep(1.0); /* Make sure all server sockets are created */
/* 5. Create socket to the successor on the ring */
DEBUG2("Connect to my successor on %s:%d",host,peerport);
- if ((errcode=gras_socket_client(host,peerport,
- &(globals->tosuccessor)))) {
- ERROR1("Unable to connect to the node (got %s). Bailing out.",
- xbt_error_name(errcode));
- return 1;
- }
-
+ globals->tosuccessor = gras_socket_client(host,peerport);
/* 6. Register the known messages. This function is called twice here,
but it's because this file also acts as regression test.
INFO3("Create the token (with value %d) and send it to %s:%d",
token, host, peerport);
- errcode = gras_msg_send(globals->tosuccessor,
- gras_msgtype_by_name("stoken"), &token);
-
- if (errcode != no_error) {
- fprintf(stderr, "Unable send 'stoken' to successor (%s)\n",
- xbt_error_name(errcode));
- return 1;
+ TRY {
+ gras_msg_send(globals->tosuccessor,
+ gras_msgtype_by_name("stoken"), &token);
+ } CATCH(e) {
+ RETHROW0("Unable to send the freshly created token: %s");
}
}
/* 8. Wait up to 10 seconds for an incomming message to handle */
while (globals->remaining_loop > (globals->create ? -1 : 0)) {
- errcode = gras_msg_handle(10.0);
+ gras_msg_handle(10.0);
- /* 9. Housekeeping */
- if (errcode != no_error) {
- ERROR1("Got error %s in msg_handle", xbt_error_name(errcode));
- return errcode;
- }
-
DEBUG1("looping (remaining_loop=%d)", globals->remaining_loop);
}
free(globals);
gras_exit();
- return no_error;
+ return 0;
} /* end_of_node */