/*
* Check that the header set works
*/
void HeaderSetTest::testHeaderSet() {
HeaderSet headers;
RootHeader root_header;
E131Header e131_header("e131", 1, 2, 6001);
E133Header e133_header("foo", 1, 2050);
DMPHeader dmp_header(false, false, NON_RANGE, ONE_BYTES);
// test the root header component
CID cid = CID::Generate();
root_header.SetCid(cid);
headers.SetRootHeader(root_header);
OLA_ASSERT(root_header == headers.GetRootHeader());
// test the E1.31 header component
headers.SetE131Header(e131_header);
OLA_ASSERT(e131_header == headers.GetE131Header());
// test the E1.33 header component
headers.SetE133Header(e133_header);
OLA_ASSERT(e133_header == headers.GetE133Header());
// test the DMP headers component
headers.SetDMPHeader(dmp_header);
OLA_ASSERT(dmp_header == headers.GetDMPHeader());
// test assign
HeaderSet headers2 = headers;
OLA_ASSERT(root_header == headers2.GetRootHeader());
OLA_ASSERT(e131_header == headers2.GetE131Header());
OLA_ASSERT(e133_header == headers2.GetE133Header());
OLA_ASSERT(dmp_header == headers2.GetDMPHeader());
OLA_ASSERT(headers2 == headers);
// test copy
HeaderSet headers3(headers);
OLA_ASSERT(root_header == headers3.GetRootHeader());
OLA_ASSERT(e131_header == headers3.GetE131Header());
OLA_ASSERT(e133_header == headers3.GetE133Header());
OLA_ASSERT(dmp_header == headers3.GetDMPHeader());
OLA_ASSERT(headers3 == headers);
}
/*
* Check if this source is operating at the highest priority for this universe.
* This takes care of tracking all sources for a universe at the active
* priority.
* @param universe_data the universe_handler struct for this universe,
* @param HeaderSet the set of headers in this packet
* @param buffer, if set to a non-NULL pointer, the caller should copy the data
* in the buffer.
* @returns true if we should remerge the data, false otherwise.
*/
bool DMPE131Inflator::TrackSourceIfRequired(
universe_handler *universe_data,
const HeaderSet &headers,
DmxBuffer **buffer) {
*buffer = NULL; // default the buffer to NULL
ola::TimeStamp now;
m_clock.CurrentTime(&now);
const E131Header &e131_header = headers.GetE131Header();
uint8_t priority = e131_header.Priority();
vector<dmx_source> &sources = universe_data->sources;
vector<dmx_source>::iterator iter = sources.begin();
while (iter != sources.end()) {
if (iter->cid != headers.GetRootHeader().GetCid()) {
TimeStamp expiry_time = iter->last_heard_from + EXPIRY_INTERVAL;
if (now > expiry_time) {
OLA_INFO << "source " << iter->cid.ToString() << " has expired";
iter = sources.erase(iter);
continue;
}
}
iter++;
}
if (sources.empty())
universe_data->active_priority = 0;
for (iter = sources.begin(); iter != sources.end(); ++iter) {
if (iter->cid == headers.GetRootHeader().GetCid())
break;
}
if (iter == sources.end()) {
// This is an untracked source
if (e131_header.StreamTerminated() ||
priority < universe_data->active_priority)
return false;
if (priority > universe_data->active_priority) {
OLA_INFO << "Raising priority for universe " <<
e131_header.Universe() << " from " <<
static_cast<int>(universe_data->active_priority) << " to " <<
static_cast<int>(priority);
sources.clear();
universe_data->active_priority = priority;
}
if (sources.size() == MAX_MERGE_SOURCES) {
// TODO(simon): flag this in the export map
OLA_WARN << "Max merge sources reached for universe " <<
e131_header.Universe() << ", " <<
headers.GetRootHeader().GetCid().ToString() << " won't be tracked";
return false;
} else {
OLA_INFO << "Added new E1.31 source: " <<
headers.GetRootHeader().GetCid().ToString();
dmx_source new_source;
new_source.cid = headers.GetRootHeader().GetCid();
new_source.sequence = e131_header.Sequence();
new_source.last_heard_from = now;
iter = sources.insert(sources.end(), new_source);
*buffer = &iter->buffer;
return true;
}
} else {
// We already know about this one, check the seq #
int8_t seq_diff = static_cast<int8_t>(e131_header.Sequence() -
iter->sequence);
if (seq_diff <= 0 && seq_diff > SEQUENCE_DIFF_THRESHOLD) {
OLA_INFO << "Old packet received, ignoring, this # " <<
static_cast<int>(e131_header.Sequence()) << ", last " <<
static_cast<int>(iter->sequence);
return false;
}
iter->sequence = e131_header.Sequence();
if (e131_header.StreamTerminated()) {
OLA_INFO << "CID " << headers.GetRootHeader().GetCid().ToString() <<
" sent a termination for universe " << e131_header.Universe();
sources.erase(iter);
if (sources.empty())
universe_data->active_priority = 0;
// We need to trigger a merge here else the buffer will be stale, we keep
// the buffer as NULL though so we don't use the data.
return true;
}
iter->last_heard_from = now;
if (priority < universe_data->active_priority) {
if (sources.size() == 1) {
universe_data->active_priority = priority;
} else {
sources.erase(iter);
return true;
}
} else if (priority > universe_data->active_priority) {
// new active priority
universe_data->active_priority = priority;
if (sources.size() != 1) {
// clear all sources other than this one
dmx_source this_source = *iter;
sources.clear();
iter = sources.insert(sources.end(), this_source);
}
}
*buffer = &iter->buffer;
return true;
}
}