static void *Outputter(void *arg)
{
lpel_stream_desc_t *in = LpelStreamOpen((lpel_stream_t*)arg, 'r');
char *item;
int term = 0;
printf("Outputter START\n");
while (!term) {
item = LpelStreamRead(in);
assert( item != NULL );
printf("\n\n*************************************\nOut: %s\n*************************************\n", item );
if ( 0 == strcmp( item, "T\n")) {
term = 1;
}
//free( item);
SCCFreePtr(item);
} // end while
LpelStreamClose( in, 1);
printf("Outputter TERM\n");
LpelStop();
return NULL;
}
void *Relay(void *inarg)
{
channels_t *ch = (channels_t *)inarg;
int term = 0;
int id = ch->id;
char *item;
lpel_stream_desc_t *in, *out;
in = LpelStreamOpen(ch->in, 'r');
out = LpelStreamOpen(ch->out, 'w');
printf("Relay %d START\n", id);
while (!term) {
item = LpelStreamRead( in);
assert( item != NULL );
//printf("Relay %d: %s", id, item );
if ( 0 == strcmp( item, "T\n")) {
term = 1;
}
LpelStreamWrite( out, item);
} // end while
LpelStreamClose( in, 1);
LpelStreamClose( out, 0);
//free(ch);
SCCFreePtr(ch);
printf("Relay %d TERM\n", id);
return NULL;
}
void *Consumer(void *inarg)
{
char *msg;
int i, term;
lpel_streamset_t lst = NULL;
lpel_stream_iter_t *iter;
printf("start Consumer\n" );
/* open streams */
for (i=0; i<NUM_COLL; i++) {
LpelStreamsetPut( &lst, LpelStreamOpen(scoll[i], 'r'));
}
iter = LpelStreamIterCreate(&lst);
term = 0;
do {
/* here we do wait */
printf("Consumer poll\n");
LpelStreamPoll( &lst);
printf("Consumer resumes\n");
printf("Consumer iterates:\n");
LpelStreamIterReset(iter, &lst);
while( LpelStreamIterHasNext(iter)) {
lpel_stream_desc_t *snext = LpelStreamIterNext(iter);
if ( NULL != LpelStreamPeek( snext )) {
msg = (char *) LpelStreamRead( snext);
if (0 == strcmp( msg, "T\n" )) {
term=1;
} else {
printf("%s", msg );
free(msg);
}
}
}
//sleep(5);
} while (0 == term) ;
/* print & free termination message */
printf("%s", msg );
free(msg);
/* close streams */
LpelStreamIterReset(iter, &lst);
while( LpelStreamIterHasNext(iter)) {
lpel_stream_desc_t *snext = LpelStreamIterNext(iter);
LpelStreamClose( snext, 1);
}
LpelStreamIterDestroy( iter);
printf("exit Consumer\n" );
LpelStop();
return NULL;
}
void *SNetStreamRead(snet_stream_desc_t * sd)
{
void *item = LpelStreamRead((lpel_stream_desc_t *) sd);
usrdata_t *dat;
/* call the read callback function */
dat = LpelStreamGetUsrData(LpelStreamGet((lpel_stream_desc_t *) sd));
if (dat != NULL) {
if (dat->callback_read.func) {
dat->callback_read.func(dat->callback_read.arg);
}
}
return item;
}
void *Relay(void *inarg)
{
void *item;
char *msg;
int i, dest;
lpel_stream_desc_t *out[NUM_COLL];
lpel_stream_desc_t *in;
int term = 0;
printf("start Relay\n" );
/* open streams */
for (i=0; i<NUM_COLL; i++) {
out[i] = LpelStreamOpen(scoll[i], 'w');
}
in = LpelStreamOpen(sinp, 'r');
/* main task: relay to consumer via defined stream */
while( !term) {
item = LpelStreamRead(in);
assert( item != NULL );
msg = (char *)item;
if ( 0 == strcmp( msg, "T\n" ) ) {
term = 1;
dest = 0;
} else {
dest = atoi(msg);
}
if ( 0<dest && dest<NUM_COLL) {
LpelStreamWrite( out[dest], item);
printf("Relay dest: %d\n", dest);
}
}
/* terminate msg goes to 0 */
assert( dest==0 );
printf("Relay dest: %d\n", dest);
/* relay to all, close streams */
for (i=0; i<NUM_COLL; i++) {
LpelStreamWrite( out[i], item);
LpelStreamClose( out[i], 0);
}
LpelStreamClose(in, 1);
printf("exit Relay\n" );
return NULL;
}
