Deadlock while loading another cache in fallback of load() #54
Description
- bug report? yes
- feature request? no
- version: 2.5.6 (nette/caching)
Description
When trying to load cache by fallback in another fallback of load, script runs to infinity (maybe deadlock?)
Steps To Reproduce
public function runMethodWithCache() {
$cachedValue1 = $this->cache->load('cached_value_1', function(& $dependencies) {
$dependencies['expire'] = '+1 day';
$value = $this->runAnotherMethodWithCache();
return $value;
});
}
private function runAnotherMethodWithCache() {
$usedValue = 'something';
$this->someValue = $this->cache->load('cached_value_2', function (& $dependencies) use ($usedValue) {
$dependencies[Cache::ITEMS] = ['cached_value_1'];
return $usedValue;
});
return 'something another';
}
When I comment following lines from second method, script running as expected.
$this->someValue = $this->cache->load('cached_value_2', function (& $dependencies) use ($usedValue) {
$dependencies[Cache::ITEMS] = ['cached_value_1'];
return $usedValue;
});
[UPDATE 1]: most probably, this is caused by cross dependency of Cache::ITEMS in second method, which is dependent on first one cache.
Idea
If subloading of cache is not possible, it should be inspect to avoid sub-loading of cache.