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// **********************************************************************
//
// Copyright (c) 2003-present ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#import <Ice/Config.h>
#if TARGET_OS_IPHONE != 0
#import <Foundation/NSObject.h>
#import <Foundation/NSNotification.h>
#import <UIKit/UIApplication.h>
#include <Ice/ConnectionFactory.h>
#include <set>
using namespace std;
using namespace IceInternal;
namespace IceInternal
{
bool registerForBackgroundNotification(const IncomingConnectionFactoryPtr&);
void unregisterForBackgroundNotification(const IncomingConnectionFactoryPtr&);
}
namespace
{
class Observer
{
public:
Observer() : _background(false)
{
_backgroundObserver =
[[NSNotificationCenter defaultCenter] addObserverForName:UIApplicationDidEnterBackgroundNotification
object:nil
queue:nil
usingBlock:^(NSNotification*)
{
didEnterBackground();
}];
_foregroundObserver =
[[NSNotificationCenter defaultCenter] addObserverForName:UIApplicationWillEnterForegroundNotification
object:nil
queue:nil
usingBlock:^(NSNotification*)
{
willEnterForeground();
}];
}
~Observer()
{
[[NSNotificationCenter defaultCenter] removeObserver:_backgroundObserver];
[[NSNotificationCenter defaultCenter] removeObserver:_foregroundObserver];
}
bool
add(const IncomingConnectionFactoryPtr& factory)
{
IceUtil::Mutex::Lock sync(_mutex);
if(_background)
{
factory->stopAcceptor();
}
else
{
factory->startAcceptor(); // Might throw
}
_factories.insert(factory);
return _background;
}
void
remove(const IncomingConnectionFactoryPtr& factory)
{
IceUtil::Mutex::Lock sync(_mutex);
_factories.erase(factory);
}
void
didEnterBackground()
{
IceUtil::Mutex::Lock sync(_mutex);
//
// Notify all the incoming connection factories that we are
// entering the background mode.
//
for(set<IncomingConnectionFactoryPtr>::const_iterator p = _factories.begin(); p != _factories.end(); ++p)
{
(*p)->stopAcceptor();
}
_background = true;
}
void
willEnterForeground()
{
IceUtil::Mutex::Lock sync(_mutex);
//
// Notify all the incoming connection factories that we are
// entering the foreground mode.
//
_background = false;
for(set<IncomingConnectionFactoryPtr>::const_iterator p = _factories.begin(); p != _factories.end(); ++p)
{
(*p)->startAcceptor();
}
}
private:
IceUtil::Mutex _mutex;
bool _background;
id _backgroundObserver;
id _foregroundObserver;
set<IncomingConnectionFactoryPtr> _factories;
};
}
static Observer observer;
bool
IceInternal::registerForBackgroundNotification(const IncomingConnectionFactoryPtr& factory)
{
return observer.add(factory);
}
void
IceInternal::unregisterForBackgroundNotification(const IncomingConnectionFactoryPtr& factory)
{
observer.remove(factory);
}
#endif
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