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opt / cpanel / ea-ruby27 / src / passenger-release-6.1.2 / src / agent / Core /

?? ..
?? ApiServer.h(25.58 KB)
?? ApplicationPool
?? Config.h(26.29 KB)
?? ConfigChange.cpp(10.58 KB)
?? ConfigChange.h(2.33 KB)
?? Controller
?? Controller.h(16.99 KB)
?? CoreMain.cpp(42.44 KB)
?? OptionParser.h(22.59 KB)
?? ResponseCache.h(18.78 KB)
?? SecurityUpdateChecker.h(25.93 KB)
?? SpawningKit
?? TelemetryCollector.h(19.45 KB)

Editing: ConfigChange.cpp

/*
 *  Phusion Passenger - https://www.phusionpassenger.com/
 *  Copyright (c) 2011-2025 Asynchronous B.V.
 *
 *  "Passenger", "Phusion Passenger" and "Union Station" are registered
 *  trademarks of Asynchronous 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.
 */

#include <boost/thread.hpp>
#include <boost/scoped_ptr.hpp>
#include <vector>
#include <cassert>

#include <LoggingKit/LoggingKit.h>
#include <Core/ConfigChange.h>
#include <Core/Config.h>

namespace Passenger {
namespace Core {

using namespace std;

struct ConfigChangeRequest {
	Json::Value updates;
	PrepareConfigChangeCallback prepareCallback;
	CommitConfigChangeCallback commitCallback;
	unsigned int counter;
	vector<ConfigKit::Error> errors;

boost::scoped_ptr<ConfigKit::Store> config;
	LoggingKit::ConfigChangeRequest forLoggingKit;
	SecurityUpdateChecker::ConfigChangeRequest forSecurityUpdateChecker;
	TelemetryCollector::ConfigChangeRequest forTelemetryCollector;
	vector<ServerKit::ConfigChangeRequest *> forControllerServerKit;
	vector<Controller::ConfigChangeRequest *> forController;
	ServerKit::ConfigChangeRequest forApiServerKit;
	ApiServer::ConfigChangeRequest forApiServer;

ConfigChangeRequest()
		: counter(0)
		{ }

~ConfigChangeRequest() {
		{
			vector<ServerKit::ConfigChangeRequest *>::iterator it;
			for (it = forControllerServerKit.begin(); it != forControllerServerKit.end(); it++) {
				delete *it;
			}
		}
		{
			vector<Controller::ConfigChangeRequest *>::iterator it;
			for (it = forController.begin(); it != forController.end(); it++) {
				delete *it;
			}
		}
	}
};

/**************** Functions: prepare config change ****************/

static void
asyncPrepareConfigChangeCompletedOne(ConfigChangeRequest *req) {
	assert(req->counter > 0);
	req->counter--;
	if (req->counter == 0) {
		req->errors = ConfigKit::deduplicateErrors(req->errors);
		if (req->errors.empty()) {
			P_INFO("Changing configuration: " << req->updates.toStyledString());
		} else {
			P_ERROR("Error changing configuration: " << ConfigKit::toString(req->errors)
				<< "\nThe proposed configuration was: " << req->updates.toStyledString());
		}
		oxt::thread(boost::bind(req->prepareCallback, req->errors, req),
			"Core config callback thread",
			128 * 1024);
	}
}

static void
asyncPrepareConfigChangeForController(unsigned int i, const Json::Value &updates, ConfigChangeRequest *req) {
	ThreadWorkingObjects *two = &workingObjects->threadWorkingObjects[i];
	vector<ConfigKit::Error> errors1, errors2;

req->forControllerServerKit[i] = new ServerKit::ConfigChangeRequest();
	ConfigKit::prepareConfigChangeForSubComponent(
		*two->serverKitContext, coreSchema->controllerServerKit.translator,
		req->config->inspectEffectiveValues(),
		errors1, *req->forControllerServerKit[i]);

req->forController[i] = new Controller::ConfigChangeRequest();
	ConfigKit::prepareConfigChangeForSubComponent(
		*two->controller, coreSchema->controller.translator,
		req->config->inspectEffectiveValues(),
		errors2, *req->forController[i]);

boost::lock_guard<boost::mutex> l(workingObjects->configSyncher);
	P_DEBUG("asyncPrepareConfigChangeForController(" << i << "): counter "
		<< req->counter << " -> " << (req->counter - 1));
	req->errors.insert(req->errors.begin(), errors1.begin(), errors1.end());
	req->errors.insert(req->errors.begin(), errors2.begin(), errors2.end());
	asyncPrepareConfigChangeCompletedOne(req);
}

static void
asyncPrepareConfigChangeForApiServer(const Json::Value &updates, ConfigChangeRequest *req) {
	vector<ConfigKit::Error> errors1, errors2;

ConfigKit::prepareConfigChangeForSubComponent(
		*workingObjects->apiWorkingObjects.serverKitContext,
		coreSchema->apiServerKit.translator,
		req->config->inspectEffectiveValues(),
		errors1, req->forApiServerKit);
	ConfigKit::prepareConfigChangeForSubComponent(
		*workingObjects->apiWorkingObjects.apiServer,
		coreSchema->apiServer.translator,
		req->config->inspectEffectiveValues(),
		errors2, req->forApiServer);

boost::lock_guard<boost::mutex> l(workingObjects->configSyncher);
	P_DEBUG("asyncPrepareConfigChangeForApiServer: counter "
		<< req->counter << " -> " << (req->counter - 1));
	req->errors.insert(req->errors.begin(), errors1.begin(), errors1.end());
	req->errors.insert(req->errors.begin(), errors2.begin(), errors2.end());
	asyncPrepareConfigChangeCompletedOne(req);
}

//
//

void
asyncPrepareConfigChange(const Json::Value &updates, ConfigChangeRequest *req,
	const PrepareConfigChangeCallback &callback)
{
	P_DEBUG("Preparing configuration change: " << updates.toStyledString());
	WorkingObjects *wo = workingObjects;
	boost::lock_guard<boost::mutex> l(workingObjects->configSyncher);

req->updates = updates;
	req->prepareCallback = callback;
	req->counter++;

req->config.reset(new ConfigKit::Store(*coreConfig, updates, req->errors));
	if (!req->errors.empty()) {
		asyncPrepareConfigChangeCompletedOne(req);
		return;
	}

ConfigKit::prepareConfigChangeForSubComponent(
		*LoggingKit::context, coreSchema->loggingKit.translator,
		manipulateLoggingKitConfig(*req->config,
			req->config->inspectEffectiveValues()),
		req->errors, req->forLoggingKit);
	ConfigKit::prepareConfigChangeForSubComponent(
		*workingObjects->securityUpdateChecker,
		coreSchema->securityUpdateChecker.translator,
		req->config->inspectEffectiveValues(),
		req->errors, req->forSecurityUpdateChecker);
	if (workingObjects->telemetryCollector != NULL) {
		ConfigKit::prepareConfigChangeForSubComponent(
			*workingObjects->telemetryCollector,
			coreSchema->telemetryCollector.translator,
			req->config->inspectEffectiveValues(),
			req->errors, req->forTelemetryCollector);
	}

req->forControllerServerKit.resize(wo->threadWorkingObjects.size(), NULL);
	req->forController.resize(wo->threadWorkingObjects.size(), NULL);
	for (unsigned int i = 0; i < wo->threadWorkingObjects.size(); i++) {
		ThreadWorkingObjects *two = &wo->threadWorkingObjects[i];
		req->counter++;
		two->bgloop->safe->runLater(boost::bind(asyncPrepareConfigChangeForController,
			i, updates, req));
	}

if (wo->apiWorkingObjects.apiServer != NULL) {
		req->counter++;
		wo->apiWorkingObjects.bgloop->safe->runLater(boost::bind(
			asyncPrepareConfigChangeForApiServer, updates, req));
	}

/***************/
	/***************/

asyncPrepareConfigChangeCompletedOne(req);
}

/**************** Functions: commit config change ****************/

static void
asyncCommitConfigChangeCompletedOne(ConfigChangeRequest *req) {
	assert(req->counter > 0);
	req->counter--;
	if (req->counter == 0) {
		oxt::thread(boost::bind(req->commitCallback, req),
			"Core config callback thread",
			128 * 1024);
	}
}

static void
asyncCommitConfigChangeForController(unsigned int i, ConfigChangeRequest *req) {
	ThreadWorkingObjects *two = &workingObjects->threadWorkingObjects[i];

two->serverKitContext->commitConfigChange(*req->forControllerServerKit[i]);
	two->controller->commitConfigChange(*req->forController[i]);

boost::lock_guard<boost::mutex> l(workingObjects->configSyncher);
	P_DEBUG("asyncCommitConfigChangeForController(" << i << "): counter "
		<< req->counter << " -> " << (req->counter - 1));
	asyncCommitConfigChangeCompletedOne(req);
}

static void
asyncCommitConfigChangeForApiServer(ConfigChangeRequest *req) {
	ApiWorkingObjects *awo = &workingObjects->apiWorkingObjects;

awo->serverKitContext->commitConfigChange(req->forApiServerKit);
	awo->apiServer->commitConfigChange(req->forApiServer);

boost::lock_guard<boost::mutex> l(workingObjects->configSyncher);
	P_DEBUG("asyncCommitConfigChangeForApiServer: counter "
		<< req->counter << " -> " << (req->counter - 1));
	asyncCommitConfigChangeCompletedOne(req);
}

//
//

void
asyncCommitConfigChange(ConfigChangeRequest *req, const CommitConfigChangeCallback &callback)
	BOOST_NOEXCEPT_OR_NOTHROW
{
	WorkingObjects *wo = workingObjects;
	boost::lock_guard<boost::mutex> l(workingObjects->configSyncher);

req->commitCallback = callback;
	req->counter++;

coreConfig->swap(*req->config);
	LoggingKit::context->commitConfigChange(req->forLoggingKit);
	workingObjects->securityUpdateChecker->commitConfigChange(
		req->forSecurityUpdateChecker);
	if (workingObjects->telemetryCollector != NULL) {
		workingObjects->telemetryCollector->commitConfigChange(
			req->forTelemetryCollector);
	}

wo->appPool->setMax(coreConfig->get("max_pool_size").asInt());
	wo->appPool->setMaxIdleTime(coreConfig->get("pool_idle_time").asInt() * 1000000ULL);
	wo->appPool->enableSelfChecking(coreConfig->get("pool_selfchecks").asBool());
	{
		LockGuard l(wo->appPoolContext->agentConfigSyncher);
		wo->appPoolContext->agentConfig = coreConfig->inspectEffectiveValues();
	}

for (unsigned int i = 0; i < wo->threadWorkingObjects.size(); i++) {
		ThreadWorkingObjects *two = &wo->threadWorkingObjects[i];
		req->counter++;
		two->bgloop->safe->runLater(boost::bind(asyncCommitConfigChangeForController,
			i, req));
	}

if (wo->apiWorkingObjects.apiServer != NULL) {
		req->counter++;
		wo->apiWorkingObjects.bgloop->safe->runLater(boost::bind(
			asyncCommitConfigChangeForApiServer, req));
	}

/***************/
	/***************/

asyncCommitConfigChangeCompletedOne(req);
}

/**************** Functions: miscellaneous ****************/

inline ConfigChangeRequest *
createConfigChangeRequest() {
	return new ConfigChangeRequest();
}

inline void
freeConfigChangeRequest(ConfigChangeRequest *req) {
	delete req;
}

Json::Value
inspectConfig() {
	boost::lock_guard<boost::mutex> l(workingObjects->configSyncher);
	return coreConfig->inspect();
}

Json::Value
manipulateLoggingKitConfig(const ConfigKit::Store &coreConfig,
	const Json::Value &loggingKitConfig)
{
	Json::Value result = loggingKitConfig;
	result["buffer_logs"] = false;
	return result;
}

} // namespace Core
} // namespace Passenger

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Editing: ConfigChange.cpp

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