* @return WANObjectCache
*/
public static function newEmpty() {
- return new self( [
+ return new static( [
'cache' => new EmptyBagOStuff(),
'pool' => 'empty'
] );
$wrappedValues += $this->cache->getMulti( $keysGet );
}
// Time used to compare/init "check" keys (derived after getMulti() to be pessimistic)
- $now = microtime( true );
+ $now = $this->getCurrentTime();
// Collect timestamps from all "check" keys
$purgeValuesForAll = $this->processCheckKeys( $checkKeysForAll, $wrappedValues, $now );
* @return bool Success
*/
final public function set( $key, $value, $ttl = 0, array $opts = [] ) {
- $now = microtime( true );
+ $now = $this->getCurrentTime();
$lockTSE = isset( $opts['lockTSE'] ) ? $opts['lockTSE'] : self::TSE_NONE;
$staleTTL = isset( $opts['staleTTL'] ) ? $opts['staleTTL'] : self::STALE_TTL_NONE;
$age = isset( $opts['since'] ) ? max( 0, $now - $opts['since'] ) : 0;
$time = $purge[self::FLD_TIME];
} else {
// Casting assures identical floats for the next getCheckKeyTime() calls
- $now = (string)microtime( true );
+ $now = (string)$this->getCurrentTime();
$this->cache->add( $key,
$this->makePurgeValue( $now, self::HOLDOFF_TTL ),
self::CHECK_KEY_TTL
$cValue = $this->get( $key, $curTTL, $checkKeys, $asOf ); // current value
$value = $cValue; // return value
- $preCallbackTime = microtime( true );
+ $preCallbackTime = $this->getCurrentTime();
// Determine if a cached value regeneration is needed or desired
if ( $value !== false
&& $curTTL > 0
// so use a special INTERIM key to pass the new value around threads.
if ( ( $isTombstone && $lockTSE > 0 ) && $valueIsCacheable ) {
$tempTTL = max( 1, (int)$lockTSE ); // set() expects seconds
- $newAsOf = microtime( true );
+ $newAsOf = $this->getCurrentTime();
$wrapped = $this->wrap( $value, $tempTTL, $newAsOf );
// Avoid using set() to avoid pointless mcrouter broadcasting
$this->setInterimValue( $key, $wrapped, $tempTTL );
*/
protected function getInterimValue( $key, $versioned, $minTime, &$asOf ) {
$wrapped = $this->cache->get( self::INTERIM_KEY_PREFIX . $key );
- list( $value ) = $this->unwrap( $wrapped, microtime( true ) );
+ list( $value ) = $this->unwrap( $wrapped, $this->getCurrentTime() );
if ( $value !== false && $this->isValid( $value, $versioned, $asOf, $minTime ) ) {
$asOf = $wrapped[self::FLD_TIME];
if ( $this->purgeRelayer instanceof EventRelayerNull ) {
// This handles the mcrouter and the single-DC case
$ok = $this->cache->set( $key,
- $this->makePurgeValue( microtime( true ), self::HOLDOFF_NONE ),
+ $this->makePurgeValue( $this->getCurrentTime(), self::HOLDOFF_NONE ),
$ttl
);
} else {
* @return bool
*/
protected function worthRefreshExpiring( $curTTL, $lowTTL ) {
- if ( $curTTL >= $lowTTL ) {
+ if ( $lowTTL <= 0 ) {
+ return false;
+ } elseif ( $curTTL >= $lowTTL ) {
return false;
} elseif ( $curTTL <= 0 ) {
return true;
* @return bool
*/
protected function worthRefreshPopular( $asOf, $ageNew, $timeTillRefresh, $now ) {
+ if ( $ageNew < 0 || $timeTillRefresh <= 0 ) {
+ return false;
+ }
+
$age = $now - $asOf;
$timeOld = $age - $ageNew;
if ( $timeOld <= 0 ) {
return isset( $parts[1] ) ? $parts[1] : $parts[0]; // sanity
}
+ /**
+ * @return float UNIX timestamp
+ * @codeCoverageIgnore
+ */
+ protected function getCurrentTime() {
+ return microtime( true );
+ }
+
/**
* @param string $value Wrapped value like "PURGED:<timestamp>:<holdoff>"
* @return array|bool Array containing a UNIX timestamp (float) and holdoff period (integer),