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/*
* Phusion Passenger - https://www.phusionpassenger.com/
* Copyright (c) 2011-2018 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_CONTEXT_H_
#define _PASSENGER_SPAWNING_KIT_CONTEXT_H_
#include <boost/function.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/make_shared.hpp>
#include <string>
#include <algorithm>
#include <cstddef>
#include <ResourceLocator.h>
#include <RandomGenerator.h>
#include <Exceptions.h>
#include <WrapperRegistry/Registry.h>
#include <JsonTools/JsonUtils.h>
#include <ConfigKit/Store.h>
namespace Passenger {
namespace ApplicationPool2 {
class Options;
}
}
namespace Passenger {
namespace SpawningKit {
using namespace std;
class HandshakePrepare;
typedef Passenger::ApplicationPool2::Options AppPoolOptions;
class Context {
public:
class Schema: public ConfigKit::Schema {
private:
static void validate(const ConfigKit::Store &config, vector<ConfigKit::Error> &errors) {
if (config["min_port_range"].asUInt() > config["max_port_range"].asUInt()) {
errors.push_back(ConfigKit::Error(
"'{{min_port_range}}' must be equal to or smaller than {{max_port_range}}"));
}
if (config["min_port_range"].asUInt() > 65535) {
errors.push_back(ConfigKit::Error(
"{{min_port_range}} must be equal to or less than 65535"));
}
if (config["max_port_range"].asUInt() > 65535) {
errors.push_back(ConfigKit::Error(
"{{max_port_range}} must be equal to or less than 65535"));
}
}
public:
Schema() {
using namespace ConfigKit;
add("min_port_range", UINT_TYPE, OPTIONAL, 5000);
add("max_port_range", UINT_TYPE, OPTIONAL, 65535);
addValidator(validate);
finalize();
}
};
struct DebugSupport {
// Used by DummySpawner and SpawnerFactory.
unsigned int dummyConcurrency;
unsigned long long dummySpawnDelay;
unsigned long long spawnerCreationSleepTime;
DebugSupport()
: dummyConcurrency(1),
dummySpawnDelay(0),
spawnerCreationSleepTime(0)
{ }
};
private:
friend class HandshakePrepare;
mutable boost::mutex syncher;
/****** Context-global configuration ******/
// Actual configuration store.
ConfigKit::Store config;
// Below follows cached values.
// Other.
unsigned int minPortRange, maxPortRange;
/****** Working state ******/
bool finalized;
unsigned int nextPort;
void updateConfigCache() {
minPortRange = config["min_port_range"].asUInt();
maxPortRange = config["max_port_range"].asUInt();
nextPort = std::max(std::min(nextPort, maxPortRange), minPortRange);
}
public:
/****** Dependencies ******/
const ResourceLocator *resourceLocator;
const WrapperRegistry::Registry *wrapperRegistry;
RandomGeneratorPtr randomGenerator;
string integrationMode;
string instanceDir;
string spawnDir;
DebugSupport *debugSupport;
//UnionStation::ContextPtr unionStationContext;
Context(const Schema &schema, const Json::Value &initialConfig = Json::Value())
: config(schema),
finalized(false),
nextPort(0),
resourceLocator(NULL),
wrapperRegistry(NULL),
debugSupport(NULL)
{
vector<ConfigKit::Error> errors;
if (!config.update(initialConfig, errors)) {
throw ArgumentException("Invalid initial configuration: "
+ toString(errors));
}
updateConfigCache();
}
Json::Value previewConfigUpdate(const Json::Value &updates,
vector<ConfigKit::Error> &errors)
{
boost::lock_guard<boost::mutex> l(syncher);
return config.previewUpdate(updates, errors);
}
bool configure(const Json::Value &updates, vector<ConfigKit::Error> &errors) {
boost::lock_guard<boost::mutex> l(syncher);
if (config.update(updates, errors)) {
updateConfigCache();
return true;
} else {
return false;
}
}
Json::Value inspectConfig() const {
boost::lock_guard<boost::mutex> l(syncher);
return config.inspect();
}
void finalize() {
TRACE_POINT();
if (resourceLocator == NULL) {
throw RuntimeException("ResourceLocator not initialized");
}
if (wrapperRegistry == NULL) {
throw RuntimeException("WrapperRegistry not initialized");
}
if (randomGenerator == NULL) {
randomGenerator = boost::make_shared<RandomGenerator>();
}
if (integrationMode.empty()) {
throw RuntimeException("integrationMode not set");
}
finalized = true;
}
bool isFinalized() const {
return finalized;
}
};
typedef boost::shared_ptr<Context> ContextPtr;
} // namespace SpawningKit
} // namespace Passenger
#endif /* _PASSENGER_SPAWNING_KIT_CONTEXT_H_ */
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