lpel_task_t *LpelWorkerCurrentTask(void)
{
workerctx_t *w = LpelWorkerSelf();
/* It is quite a common bug to call LpelWorkerCurrentTask() from a non-task context.
* Provide an assertion error instead of just segfaulting on a null dereference. */
assert(w && "Currently not in an LPEL worker context!");
return w->current_task;
}
void LpelWorkerTaskWakeup(lpel_task_t *t) {
workerctx_t *wc = t->worker_context;
WORKER_DBG("worker %d: send wake up task %d\n", LpelWorkerSelf()->wid, t->uid);
if (wc == NULL)
sendWakeup(mastermb, t);
else {
if (wc->wid < 0)
sendWakeup(wc->mailbox, t);
else
sendWakeup(mastermb, t);
}
}
lpel_stream_t *LpelWorkerGetStream() {
lpel_stream_t *tmp;
workerctx_t *wc = LpelWorkerSelf();
if (wc == NULL) {
return NULL;
}
tmp = wc->free_stream;
if (tmp) {
wc->free_stream = tmp->next;
tmp->next = NULL;
assert(tmp->cons_sd == NULL && tmp->prod_sd == NULL);
}
return tmp;
}
/**
* Get the virtual worker id from within a spmd function
*/
int LpelSpmdVId(void)
{
int self_id, master_id;
spmdreq_t *curreq;
self_id = LpelWorkerSelf()->wid;
assert( self_id >= 0 && self_id < num_workers );
/* if we are not in a spmd, curreq is NULL */
curreq = worker_data[self_id].curreq;
assert(curreq != NULL);
/* the virtual id for the master is 0,
* all other worker ids are shifted
* by the master id modulo num_workers
*/
master_id = curreq->wctx->wid;
return GetVId(self_id, master_id);
}
