void Step::
finishTask(Step::ptr step, int taskid, pBuffer result)
{
Interval result_interval;
if (result)
result_interval = result->getInterval ();
TASKINFO TaskInfo ti(format("Step::finishTask %2% on %1%")
% step.raw ()->operation_name()
% result_interval);
if (result) {
// Result must have the same number of channels and sample rate as previous cache.
// Call deprecateCache(Interval::Interval_ALL) to erase the cache when chainging number of channels or sample rate.
step.raw ()->cache_->put (result);
}
auto self = step.write ();
int matched_task = self->running_tasks.count (taskid);
if (1 != matched_task) {
Log("C = %d, taskid = %x on %s") % matched_task % taskid % self->operation_name ();
EXCEPTION_ASSERT_EQUALS( 1, matched_task );
}
Intervals expected_output = self->running_tasks[ taskid ];
Intervals update_miss = expected_output - result_interval;
self->not_started_ |= update_miss;
if (!result) {
TASKINFO TaskInfo(format("The task was cancelled. Restoring %1% for %2%")
% update_miss
% self->operation_name());
} else {
if (update_miss) {
TaskInfo(format("These samples were supposed to be updated by the task but missed: %1% by %2%")
% update_miss
% self->operation_name());
}
if (result_interval - expected_output) {
// These samples were not supposed to be updated by the task but were calculated anyway
TaskInfo(format("Unexpected extras: %1% = (%2%) - (%3%) from %4%")
% (result_interval - expected_output)
% result_interval
% expected_output
% self->operation_name());
// The samples are still marked as invalid. Would need to remove the
// extra calculated samples from not_started_ but that would fail
// in a situation where deprecatedCache is called after the task has
// been created. So not_started_ can't be modified here (unless calls
// to deprecatedCache were tracked).
}
}
self->running_tasks.erase ( taskid );
self.unlock ();
step.raw ()->wait_for_tasks_.notify_all ();
}
void Step::
test()
{
// It should keep a cache for a signal processing step (defined by an OpertionDesc).
//
// The cache description should contain information about what's out_of_date
// and what's currently being updated.
{
// Create an OperationDesc
pBuffer b(new Buffer(Interval(60,70), 40, 7));
for (unsigned c=0; c<b->number_of_channels (); ++c)
{
float *p = b->getChannel (c)->waveform_data ()->getCpuMemory ();
for (int i=0; i<b->number_of_samples (); ++i)
p[i] = c + 1+i/(float)b->number_of_samples ();
}
// Create a Step
Step::ptr s2( new Step(OperationDesc::ptr()));
shared_state<Step>::weak_ptr ws = s2;
Step::ptr s = ws.lock ();
// It should contain information about what's out_of_date and what's currently being updated.
int taskid = s->registerTask(b->getInterval ());
EXCEPTION_ASSERT_EQUALS(s->not_started (), ~Intervals(b->getInterval ()));
EXCEPTION_ASSERT_EQUALS(s->out_of_date(), Intervals::Intervals_ALL);
Step::finishTask(s, taskid, b);
EXCEPTION_ASSERT_EQUALS(s->out_of_date(), ~Intervals(b->getInterval ()));
EXCEPTION_ASSERT( *b == *Step::readFixedLengthFromCache (s, b->getInterval ()) );
}
// A crashed signal processing step should behave as a transparent operation.
{
OperationDesc::ptr silence(new Signal::OperationSetSilent(Signal::Interval(2,3)));
Step s(silence);
EXCEPTION_ASSERT(!s.get_crashed ());
EXCEPTION_ASSERT(s.operation_desc ());
EXCEPTION_ASSERT(s.operation_desc ().read ()->createOperation (0));
EXCEPTION_ASSERT(!dynamic_cast<Test::TransparentOperationDesc*>(s.operation_desc ().raw ()));
EXCEPTION_ASSERT(!dynamic_cast<Test::TransparentOperation*>(s.operation_desc ().read ()->createOperation (0).get ()));
s.mark_as_crashed_and_get_invalidator ();
EXCEPTION_ASSERT(s.get_crashed ());
EXCEPTION_ASSERT(s.operation_desc ());
EXCEPTION_ASSERT(s.operation_desc ().read ()->createOperation (0));
EXCEPTION_ASSERT(dynamic_cast<Test::TransparentOperationDesc*>(s.operation_desc ().raw ()));
EXCEPTION_ASSERT(dynamic_cast<Test::TransparentOperation*>(s.operation_desc ().read ()->createOperation (0).get ()));
}
}
void GraphInvalidator::
deprecateCache(const Dag& dag, Step::ptr step, Signal::Intervals what)
{
// Invalidate the source first
what = step.write ()->deprecateCache(what);
// Invalidate the targets afterwards
// Otherwise the scheduler might start working on data that isn't ready yet
for (Step::ptr ts: dag.targetSteps(step))
deprecateCache(dag, ts, what);
}