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/*
* Copyright (c) 2010-2016 Isode Limited.
* All rights reserved.
* See the COPYING file for more information.
*/
#include <Swiften/Network/PlatformDomainNameResolver.h>
#include <algorithm>
#include <mutex>
#include <string>
#include <thread>
#include <vector>
#include <boost/bind.hpp>
#include <Swiften/EventLoop/EventLoop.h>
#include <Swiften/IDN/IDNConverter.h>
#include <Swiften/Network/DomainNameAddressQuery.h>
#include <Swiften/Network/HostAddress.h>
#include <Swiften/Network/HostAddressPort.h>
#include <Swiften/Network/PlatformDomainNameAddressQuery.h>
#include <Swiften/Network/PlatformDomainNameServiceQuery.h>
using namespace Swift;
namespace Swift {
PlatformDomainNameResolver::PlatformDomainNameResolver(IDNConverter* idnConverter, EventLoop* eventLoop) : idnConverter(idnConverter), eventLoop(eventLoop), stopRequested(false) {
thread = new std::thread(boost::bind(&PlatformDomainNameResolver::run, this));
}
PlatformDomainNameResolver::~PlatformDomainNameResolver() {
stopRequested = true;
addQueryToQueue(std::shared_ptr<PlatformDomainNameQuery>());
thread->join();
delete thread;
}
std::shared_ptr<DomainNameServiceQuery> PlatformDomainNameResolver::createServiceQuery(const std::string& serviceLookupPrefix, const std::string& domain) {
boost::optional<std::string> encodedDomain = idnConverter->getIDNAEncoded(domain);
std::string result;
if (encodedDomain) {
result = serviceLookupPrefix + *encodedDomain;
}
return std::make_shared<PlatformDomainNameServiceQuery>(result, eventLoop, this);
}
std::shared_ptr<DomainNameAddressQuery> PlatformDomainNameResolver::createAddressQuery(const std::string& name) {
return std::make_shared<PlatformDomainNameAddressQuery>(idnConverter->getIDNAEncoded(name), eventLoop, this);
}
void PlatformDomainNameResolver::run() {
while (!stopRequested) {
PlatformDomainNameQuery::ref query;
{
std::unique_lock<std::mutex> lock(queueMutex);
while (queue.empty()) {
queueNonEmpty.wait(lock);
}
query = queue.front();
queue.pop_front();
}
// Check whether we don't have a non-null query (used to stop the
// resolver)
if (query) {
query->runBlocking();
}
}
}
void PlatformDomainNameResolver::addQueryToQueue(PlatformDomainNameQuery::ref query) {
{
std::lock_guard<std::mutex> lock(queueMutex);
queue.push_back(query);
}
queueNonEmpty.notify_one();
}
}
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