/**
* @param MultiMode $mode
* @return bool
*/
protected function startMulti(MultiMode $mode)
{
// we have to override this method and make sure it only calls our active connection
$conn = $this->getWrappedRedis(__FUNCTION__);
// this next line is not really clean, if we ever add more modes, we need to rework it
$res = $mode->equals(MultiMode::MULTI) ? $conn->multi() : ($mode->equals(MultiMode::PIPELINE) ? $conn->pipeline() : $conn->stream());
if (!$res) {
return false;
}
// let's reset the internal variables
$this->inMultiMode = true;
return true;
}
/**
* This method initiates the multi/pipeline mode on all connections. It is here to avoid code duplication
* in multi() and pipeline().
*
* @param MultiMode $mode which mode to start
* @throws MultiModeException if an error occurs during multi
* @throws InvalidArgumentException if an unknown mode is passed
* @return bool
*/
protected function startMulti(MultiMode $mode)
{
try {
foreach ($this->connections as $conn) {
$res = null;
switch ($mode->val()) {
case MultiMode::MULTI:
$res = $conn->getClient()->multi();
break;
case MultiMode::PIPELINE:
$res = $conn->getClient()->pipeline();
break;
case MultiMode::STREAM:
$res = $conn->getClient()->stream();
break;
default:
throw new InvalidArgumentException('unknown multi mode ' . $mode);
}
// if starting multi mode fails for some reason, we cancel it again for all other instances
if (!$res) {
throw new MultiModeException('could not start multi mode on ' . $conn->getName());
}
}
} catch (MultiModeException $e) {
// this will throw an exception if multi was not active yet, so we force the commands
$this->discard(true);
throw $e;
}
// let's reset the internal variables
$this->inMultiMode = true;
// in stream mode we don't need to return the results
$this->trackingActive = !$mode->equals(MultiMode::STREAM);
$this->multiModeTracking = array();
return true;
}
/**
* Helper method which starts multi mode.
*
* @param MultiMode $mode
* @return bool
*/
private function startMultiMode(MultiMode $mode)
{
$nativeMode = null;
// didn't know that it's possible to call switch on an object
switch ($mode) {
case MultiMode::STREAM():
// as we don't have much influence into what the phpredis extension does during pipeline mode
// we just treat stream mode as regular pipeline mode, but set the variable
// as we don't have much influence into what the phpredis extension does during pipeline mode
// we just treat stream mode as regular pipeline mode, but set the variable
case MultiMode::PIPELINE():
$nativeMode = \Redis::PIPELINE;
break;
case MultiMode::MULTI():
$nativeMode = \Redis::MULTI;
break;
}
$ret = $this->redis->multi($nativeMode);
if (!$ret) {
return false;
}
$this->inMultiMode = true;
$this->isStreamMode = $mode->equals(MultiMode::STREAM);
return true;
}
