int rtdal_itfspscq_pop(r_itf_t obj, void **ptr, int *len, int tstamp) {
cast(obj,itf);
RTDAL_ASSERT_PARAM(ptr);
RTDAL_ASSERT_PARAM(len);
*ptr = NULL;
*len = 0;
if (spscq_is_empty(itf)) {
qdebug("[empty] read=%d, tstamp=%d\n",itf->read,itf->packets[itf->read].tstamp);
return 0;
}
if (itf->packets[itf->read].tstamp > tstamp) {
qdebug("[delay] read=%d, tstamp=%d\n",itf->read,itf->packets[itf->read].tstamp);
return 0;
}
if (itf->packets[itf->read].tstamp < tstamp && itf->parent.delay) {
rtdal_itfspscq_release(obj);
}
qdebug("[ok] read=%d, tstamp=%d (now=%d)\n",itf->read,itf->packets[itf->read].tstamp,tstamp);
*ptr = itf->packets[itf->read].data;
*len = itf->packets[itf->read].len;
return 1;
}
int rtdal_itfspscq_release(r_itf_t obj) {
cast(obj,itf);
if (spscq_is_empty(itf)) {
qdebug("[empty] read=%d, tstamp=%d\n",itf->read,itf->packets[itf->read].tstamp);
return 0;
}
qdebug("read=%d, tstamp=%d\n",itf->read,itf->packets[itf->read].tstamp);
itf->packets[itf->read].valid = 0;
itf->read += (itf->read+1 >= itf->max_msg) ? (1-itf->max_msg) : 1;
return 1;
}
int rtdal_itfspscq_pop(r_itf_t obj, void **ptr, int *len, int tstamp) {
cast(obj,itf);
RTDAL_ASSERT_PARAM(ptr);
RTDAL_ASSERT_PARAM(len);
*ptr = NULL;
*len = 0;
if (spscq_is_empty(itf,tstamp)) {
if (itf->parent.delay==-2) {
usleep(1000);
}
qdebug("[empty] read=%d write=%d\n",itf->read,itf->write);
return 0;
}
if (itf->parent.delay >= 0 ) {
#ifdef USE_SYSTEM_TSTAMP
tstamp=rtdal_time_slot();
#endif
if (itf->packets[itf->read].tstamp > tstamp) {
qdebug("[delay] read=%d, tstamp=%d now=%d\n",itf->read,itf->packets[itf->read].tstamp,tstamp);
return 0;
}
/*
if (itf->packets[itf->read].tstamp < tstamp-1) {
qdebug("[old] read=%d, tstamp=%d now=%d\n",itf->read,itf->packets[itf->read].tstamp,tstamp);
rtdal_itfspscq_release(obj,NULL,0);
return 2;
}
*/
}
qdebug("[ok] read=%d, tstamp=%d (now=%d)\n",itf->read,itf->packets[itf->read].tstamp,tstamp);
*ptr = itf->packets[itf->read].data;
*len = itf->packets[itf->read].len;
return 1;
}