bool ClientCursor::yieldSometimes( RecordNeeds need, bool *yielded ) {
if ( yielded ) {
*yielded = false;
}
if ( ! _yieldSometimesTracker.intervalHasElapsed() ) {
Record* rec = _recordForYield( need );
if ( rec ) {
// yield for page fault
if ( yielded ) {
*yielded = true;
}
bool res = yield( suggestYieldMicros() , rec );
if ( res )
_yieldSometimesTracker.resetLastTime();
return res;
}
return true;
}
int micros = suggestYieldMicros();
if ( micros > 0 ) {
if ( yielded ) {
*yielded = true;
}
bool res = yield( micros , _recordForYield( need ) );
if ( res )
_yieldSometimesTracker.resetLastTime();
return res;
}
return true;
}
bool ClientCursor::yieldSometimes( RecordNeeds need ) {
if ( ! _yieldSometimesTracker.ping() ) {
Record* rec = _recordForYield( need );
if ( rec )
return yield( yieldSuggest() , rec );
return true;
}
int micros = yieldSuggest();
return ( micros > 0 ) ? yield( micros , _recordForYield( need ) ) : true;
}