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/*
* Phusion Passenger - https://www.phusionpassenger.com/
* Copyright (c) 2011-2017 Phusion Holding B.V.
*
* "Passenger", "Phusion Passenger" and "Union Station" are registered
* trademarks of Phusion Holding B.V.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef _PASSENGER_SPAWNING_KIT_FACTORY_H_
#define _PASSENGER_SPAWNING_KIT_FACTORY_H_
#include <Core/SpawningKit/Context.h>
#include <Core/SpawningKit/SmartSpawner.h>
#include <Core/SpawningKit/DirectSpawner.h>
#include <Core/SpawningKit/DummySpawner.h>
namespace Passenger {
namespace SpawningKit {
using namespace std;
using namespace boost;
using namespace oxt;
class Factory {
private:
boost::mutex syncher;
Context *context;
DummySpawnerPtr dummySpawner;
SpawnerPtr tryCreateSmartSpawner(const AppPoolOptions &options) {
string dir = context->resourceLocator->getHelperScriptsDir();
vector<string> preloaderCommand;
if (options.appType == "ruby" || options.appType == "rack") {
preloaderCommand.push_back(options.ruby);
preloaderCommand.push_back(dir + "/rack-preloader.rb");
} else {
return SpawnerPtr();
}
return boost::make_shared<SmartSpawner>(context,
preloaderCommand, options);
}
public:
unsigned int spawnerCreationSleepTime;
Factory(Context *_context)
: context(_context),
spawnerCreationSleepTime(0)
{
if (context->debugSupport != NULL) {
spawnerCreationSleepTime = context->debugSupport->spawnerCreationSleepTime;
}
}
virtual ~Factory() { }
virtual SpawnerPtr create(const AppPoolOptions &options) {
if (options.spawnMethod == "smart" || options.spawnMethod == "smart-lv2") {
SpawnerPtr spawner = tryCreateSmartSpawner(options);
if (spawner == NULL) {
spawner = boost::make_shared<DirectSpawner>(context);
}
return spawner;
} else if (options.spawnMethod == "direct" || options.spawnMethod == "conservative") {
boost::shared_ptr<DirectSpawner> spawner = boost::make_shared<DirectSpawner>(
context);
return spawner;
} else if (options.spawnMethod == "dummy") {
syscalls::usleep(spawnerCreationSleepTime);
return getDummySpawner();
} else {
throw ArgumentException("Unknown spawn method '" + options.spawnMethod + "'");
}
}
/**
* SpawnerFactory always returns the same DummyFactory object upon
* creating a dummy spawner. This allows unit tests to easily
* set debugging options on the spawner.
*/
DummySpawnerPtr getDummySpawner() {
boost::lock_guard<boost::mutex> l(syncher);
if (dummySpawner == NULL) {
dummySpawner = boost::make_shared<DummySpawner>(context);
}
return dummySpawner;
}
/**
* All created Spawner objects share the same Context object.
*/
Context *getContext() const {
return context;
}
};
typedef boost::shared_ptr<Factory> FactoryPtr;
} // namespace SpawningKit
} // namespace Passenger
#endif /* _PASSENGER_SPAWNING_KIT_FACTORY_H_ */
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