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/*
* Copyright (C) 2005-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#include "Zeroconf.h"
#include "ServiceBroker.h"
#include <mutex>
#if defined(HAS_MDNS)
#include "mdns/ZeroconfMDNS.h"
#endif
#include "settings/Settings.h"
#include "settings/SettingsComponent.h"
#include "threads/CriticalSection.h"
#include "utils/JobManager.h"
#if defined(TARGET_ANDROID)
#include "platform/android/network/ZeroconfAndroid.h"
#elif defined(TARGET_DARWIN)
//on osx use the native implementation
#include "platform/darwin/network/ZeroconfDarwin.h"
#elif defined(HAS_AVAHI)
#include "platform/linux/network/zeroconf/ZeroconfAvahi.h"
#endif
#include <cassert>
#include <utility>
namespace
{
std::mutex singletonMutex;
}
#ifndef HAS_ZEROCONF
//dummy implementation used if no zeroconf is present
//should be optimized away
class CZeroconfDummy : public CZeroconf
{
virtual bool doPublishService(const std::string&, const std::string&, const std::string&, unsigned int, const std::vector<std::pair<std::string, std::string> >&)
{
return false;
}
virtual bool doForceReAnnounceService(const std::string&){return false;}
virtual bool doRemoveService(const std::string& fcr_ident){return false;}
virtual void doStop(){}
};
#endif
CZeroconf* CZeroconf::smp_instance = 0;
CZeroconf::CZeroconf():mp_crit_sec(new CCriticalSection)
{
}
CZeroconf::~CZeroconf()
{
delete mp_crit_sec;
}
bool CZeroconf::PublishService(const std::string& fcr_identifier,
const std::string& fcr_type,
const std::string& fcr_name,
unsigned int f_port,
std::vector<std::pair<std::string, std::string> > txt /* = std::vector<std::pair<std::string, std::string> >() */)
{
std::unique_lock<CCriticalSection> lock(*mp_crit_sec);
CZeroconf::PublishInfo info = {fcr_type, fcr_name, f_port, std::move(txt)};
std::pair<tServiceMap::const_iterator, bool> ret = m_service_map.insert(std::make_pair(fcr_identifier, info));
if(!ret.second) //identifier exists
return false;
if(m_started)
CServiceBroker::GetJobManager()->AddJob(new CPublish(fcr_identifier, info), nullptr);
//not yet started, so its just queued
return true;
}
bool CZeroconf::RemoveService(const std::string& fcr_identifier)
{
std::unique_lock<CCriticalSection> lock(*mp_crit_sec);
tServiceMap::iterator it = m_service_map.find(fcr_identifier);
if(it == m_service_map.end())
return false;
m_service_map.erase(it);
if(m_started)
return doRemoveService(fcr_identifier);
else
return true;
}
bool CZeroconf::ForceReAnnounceService(const std::string& fcr_identifier)
{
if (HasService(fcr_identifier) && m_started)
{
return doForceReAnnounceService(fcr_identifier);
}
return false;
}
bool CZeroconf::HasService(const std::string& fcr_identifier) const
{
return (m_service_map.find(fcr_identifier) != m_service_map.end());
}
bool CZeroconf::Start()
{
std::unique_lock<CCriticalSection> lock(*mp_crit_sec);
if(!IsZCdaemonRunning())
{
const std::shared_ptr<CSettings> settings = CServiceBroker::GetSettingsComponent()->GetSettings();
settings->SetBool(CSettings::SETTING_SERVICES_ZEROCONF, false);
if (settings->GetBool(CSettings::SETTING_SERVICES_AIRPLAY))
settings->SetBool(CSettings::SETTING_SERVICES_AIRPLAY, false);
return false;
}
if(m_started)
return true;
m_started = true;
CServiceBroker::GetJobManager()->AddJob(new CPublish(m_service_map), nullptr);
return true;
}
void CZeroconf::Stop()
{
std::unique_lock<CCriticalSection> lock(*mp_crit_sec);
if(!m_started)
return;
doStop();
m_started = false;
}
CZeroconf* CZeroconf::GetInstance()
{
std::lock_guard<std::mutex> lock(singletonMutex);
if(!smp_instance)
{
#ifndef HAS_ZEROCONF
smp_instance = new CZeroconfDummy;
#else
#if defined(TARGET_DARWIN)
smp_instance = new CZeroconfDarwin;
#elif defined(HAS_AVAHI)
smp_instance = new CZeroconfAvahi;
#elif defined(TARGET_ANDROID)
smp_instance = new CZeroconfAndroid;
#elif defined(HAS_MDNS)
smp_instance = new CZeroconfMDNS;
#endif
#endif
}
assert(smp_instance);
return smp_instance;
}
void CZeroconf::ReleaseInstance()
{
std::lock_guard<std::mutex> lock(singletonMutex);
delete smp_instance;
smp_instance = 0;
}
CZeroconf::CPublish::CPublish(const std::string& fcr_identifier, const PublishInfo& pubinfo)
{
m_servmap.insert(std::make_pair(fcr_identifier, pubinfo));
}
CZeroconf::CPublish::CPublish(const tServiceMap& servmap)
: m_servmap(servmap)
{
}
bool CZeroconf::CPublish::DoWork()
{
for (const auto& it : m_servmap)
CZeroconf::GetInstance()->doPublishService(it.first, it.second.type, it.second.name,
it.second.port, it.second.txt);
return true;
}
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