PlanStage::StageState TextStage::work(WorkingSetID* out) {
++_commonStats.works;
if (isEOF()) { return PlanStage::IS_EOF; }
switch (_internalState) {
case INIT_SCANS:
return initScans(out);
case READING_TERMS:
return readFromSubScanners(out);
case RETURNING_RESULTS:
return returnResults(out);
case DONE:
return PlanStage::IS_EOF;
}
// Not reached.
return PlanStage::IS_EOF;
}
PlanStage::StageState TextStage::work(WorkingSetID* out) {
++_commonStats.works;
// Adds the amount of time taken by work() to executionTimeMillis.
ScopedTimer timer(&_commonStats.executionTimeMillis);
if (isEOF()) { return PlanStage::IS_EOF; }
invariant(_internalState != DONE);
PlanStage::StageState stageState = PlanStage::IS_EOF;
switch (_internalState) {
case INIT_SCANS:
stageState = initScans(out);
break;
case READING_TERMS:
stageState = readFromSubScanners(out);
break;
case FILTER_NEGATIVES:
stageState = filterNegatives(out);
break;
case RETURNING_RESULTS:
stageState = returnResults(out);
break;
case DONE:
// Handled above.
break;
}
// Increment common stats counters that are specific to the return value of work().
switch (stageState) {
case PlanStage::ADVANCED:
++_commonStats.advanced;
break;
case PlanStage::NEED_TIME:
++_commonStats.needTime;
break;
default:
break;
}
return stageState;
}