main()
{
INT status, size, trans, run_number;
char host_name[256], str[32];
INT event_id, request_id;
DWORD last_time;
BOOL via_callback;
/* get parameters */
printf("ID of event to request: ");
ss_gets(str, 32);
event_id = atoi(str);
printf("Host to connect: ");
ss_gets(host_name, 256);
printf("Get all events (0/1): ");
ss_gets(str, 32);
all_flag = atoi(str);
printf("Receive via callback ([y]/n): ");
ss_gets(str, 32);
via_callback = str[0] != 'n';
/* connect to experiment */
status = cm_connect_experiment(host_name, "",
all_flag ? "Power Consumer" : "Consumer", NULL);
if (status != CM_SUCCESS)
return 1;
/* open the "system" buffer, 1M size */
bm_open_buffer("SYSTEM", EVENT_BUFFER_SIZE, &hBufEvent);
/* set the buffer cache size */
bm_set_cache_size(hBufEvent, 100000, 0);
/* place a request for a specific event id */
bm_request_event(hBufEvent, (WORD) event_id, TRIGGER_ALL,
all_flag ? GET_ALL : GET_SOME, &request_id,
via_callback ? process_event : NULL);
/* place a request for system messages */
cm_msg_register(process_message);
/* place a request for transition notification */
cm_register_transition(TR_START, via_callback? transition : NULL);
last_time = 0;
do {
if (via_callback)
status = cm_yield(1000);
else {
/* receive event "manually" and call receive_event */
size = sizeof(event_buffer);
status = bm_receive_event(hBufEvent, event_buffer, &size, ASYNC);
if (status == BM_SUCCESS)
process_event(hBufEvent, request_id, (EVENT_HEADER *) event_buffer,
(void *) (((EVENT_HEADER *) event_buffer) + 1));
/* receive transitions "manually" */
if (cm_query_transition(&trans, &run_number, NULL))
transition(run_number, NULL);
/* call yield once every 100 ms */
if (ss_millitime() - last_time > 100) {
last_time = ss_millitime();
status = cm_yield(0);
}
}
} while (status != RPC_SHUTDOWN && status != SS_ABORT);
cm_disconnect_experiment();
return 1;
}
int main(int argc, char *argv[])
{
BOOL daemon = FALSE;
INT status, i, ch;
char host_name[HOST_NAME_LENGTH];
char exp_name[NAME_LENGTH];
char *speech_program = SPEECH_PROGRAM;
/* get default from environment */
cm_get_environment(host_name, sizeof(host_name), exp_name, sizeof(exp_name));
#ifdef OS_DARWIN
strlcpy(mtTalkStr, "afplay $MIDASSYS/utils/notify.wav", sizeof(mtTalkStr));
strlcpy(mtUserStr, "afplay $MIDASSYS/utils/notify.wav", sizeof(mtTalkStr));
#endif
/* parse command line parameters */
for (i = 1; i < argc; i++) {
if (argv[i][0] == '-' && argv[i][1] == 'D')
daemon = TRUE;
else if (argv[i][0] == '-') {
if (i + 1 >= argc || argv[i + 1][0] == '-')
goto usage;
if (argv[i][1] == 'e')
strcpy(exp_name, argv[++i]);
else if (argv[i][1] == 'h')
strcpy(host_name, argv[++i]);
else if (argv[i][1] == 'c')
speech_program = argv[++i];
else if (argv[i][1] == 't')
strcpy(mtTalkStr, argv[++i]);
else if (argv[i][1] == 'u')
strcpy(mtUserStr, argv[++i]);
else if (argv[i][1] == 's')
shutupTime = atoi(argv[++i]);
else {
usage:
printf
("usage: mlxspeaker [-h Hostname] [-e Experiment] [-c command] [-D] daemon\n");
printf(" [-t mt_talk] Specify the mt_talk alert command\n");
printf(" [-u mt_user] Specify the mt_user alert command\n");
printf(" [-s shut up time] Specify the min time interval between alert [s]\n");
printf(" The -t & -u switch require a command equivalent to:\n");
printf(" '-t play --volume=0.3 file.wav'\n");
printf(" [-c command] Used to start the speech synthesizer,\n");
printf(" which should read text from it's standard input.\n");
printf(" eg: mlxspeaker -c 'festival --tts -'\n\n");
return 0;
}
}
}
if (daemon) {
printf("Becoming a daemon...\n");
ss_daemon_init(FALSE);
}
/* Handle SIGPIPE signals generated from errors on the pipe */
signal(SIGPIPE, sigpipehandler);
signal(SIGINT, siginthandler);
fp = popen(speech_program, "w");
if (fp == NULL) {
cm_msg(MERROR, "Speaker", "Unable to start \"%s\": %s\n",
speech_program, strerror(errno));
cm_disconnect_experiment();
exit(2);
}
/* now connect to server */
status = cm_connect_experiment(host_name, exp_name, "Speaker", NULL);
if (status != CM_SUCCESS)
return 1;
cm_msg_register(receive_message);
printf("Midas Message Speaker connected to %s. Press \"!\" to exit.\n", host_name[0] ? host_name : "local host");
/* initialize terminal */
ss_getchar(0);
do {
status = cm_yield(1000);
while (ss_kbhit()) {
ch = ss_getchar(0);
if (ch == -1)
ch = getchar();
if (ch == '!')
status = RPC_SHUTDOWN;
}
} while (status != SS_ABORT && status != RPC_SHUTDOWN);
/* reset terminal */
ss_getchar(TRUE);
pclose(fp);
cm_disconnect_experiment();
return 1;
}
