void Engine::DoSearch(SearchParams const & params, m2::RectD const & viewport,
shared_ptr<QueryHandle> handle, Query & processor)
{
bool const viewportSearch = params.GetMode() == Mode::Viewport;
// Initialize query processor.
processor.Init(viewportSearch);
handle->Attach(processor);
MY_SCOPE_GUARD(detach, [&handle] { handle->Detach(); });
// Early exit when query processing is cancelled.
if (processor.IsCancelled())
{
params.m_onResults(Results::GetEndMarker(true /* isCancelled */));
return;
}
SetRankPivot(params, viewport, viewportSearch, processor);
if (params.IsValidPosition())
processor.SetPosition(MercatorBounds::FromLatLon(params.m_lat, params.m_lon));
else
processor.SetPosition(viewport.Center());
processor.SetMode(params.GetMode());
processor.SetSuggestsEnabled(params.GetSuggestsEnabled());
// This flag is needed for consistency with old search algorithm
// only. It will be gone when we remove old search code.
processor.SetSearchInWorld(true);
processor.SetInputLocale(params.m_inputLocale);
ASSERT(!params.m_query.empty(), ());
processor.SetQuery(params.m_query);
Results res;
processor.SearchCoordinates(res);
try
{
if (params.m_onStarted)
params.m_onStarted();
processor.SetViewport(viewport, true /* forceUpdate */);
if (viewportSearch)
processor.SearchViewportPoints(res);
else
processor.Search(res, kResultsCount);
if (!processor.IsCancelled())
EmitResults(params, res);
}
catch (Query::CancelException const &)
{
LOG(LDEBUG, ("Search has been cancelled."));
}
if (!viewportSearch && !processor.IsCancelled())
SendStatistics(params, viewport, res);
// Emit finish marker to client.
params.m_onResults(Results::GetEndMarker(processor.IsCancelled()));
}
int
main(int, char** argv) {
int status = 0;
int mytid = pvm_mytid();
int masterid = pvm_parent();
if(mytid < 0 || masterid < 0) {
cerr << "\n" << argv[0] << ": Couldn't get slave/master IDs. Aborting.\n";
exit(1);
}
GA1DBinaryStringGenome genome(GENOME_LENGTH,GenomeEvaluator);
GASteadyStateGA ga(genome);
status = pvm_initsend(PvmDataDefault);
status = pvm_send(masterid, MSG_READY);
int done = 0;
while(!done){
int bufid = pvm_recv(-1, -1);
int ival;
if(bufid >= 0) {
int bytes, msgtag, tid;
status = pvm_bufinfo(bufid, &bytes, &msgtag, &tid);
switch(msgtag) {
case MSG_DONE:
done = 1;
break;
case MSG_SET_POPULATION_SIZE:
ival = gaDefPopSize;
status = pvm_upkint(&ival, 1, 1);
ga.populationSize(ival);
break;
case MSG_INITIALIZE:
ga.initialize();
break;
case MSG_STEP:
ival = 0;
status = pvm_upkint(&ival, 1, 1);
for(int i=0; i<ival; i++)
ga.step();
ival = ga.generation();
status = pvm_initsend(PvmDataDefault);
status = pvm_pkint(&ival, 1, 1);
status = pvm_send(masterid, MSG_STEP_COMPLETE);
break;
case MSG_INCOMING_MIGRATION:
RecvMigration(ga);
break;
case MSG_SEND_MIGRATION:
{
int toid = 0, count = 0;
status = pvm_upkint(&toid, 1, 1);
status = pvm_upkint(&count, 1, 1);
SendMigration(toid, ga, count);
}
break;
case MSG_SEND_POPULATION:
SendPopulation(masterid, ga.population());
break;
case MSG_SEND_STATISTICS:
SendStatistics(masterid, ga.statistics());
break;
default:
cerr << argv[0] << ": unknown msgtag: " << msgtag << "\n";
break;
}
}
else {
cerr << argv[0] << ": error from pvm_recv: " << bufid << "\n";
}
}
pvm_exit();
return 0;
}
