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// **********************************************************************
//
// Copyright (c) 2003-2018 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.
//
// **********************************************************************
#ifndef ICE_GRID_SERVERCACHE_H
#define ICE_GRID_SERVERCACHE_H
#include <IceUtil/Mutex.h>
#include <IceUtil/Shared.h>
#include <Ice/UniquePtr.h>
#include <IceGrid/Descriptor.h>
#include <IceGrid/Internal.h>
#include <IceGrid/Registry.h>
#include <IceGrid/Allocatable.h>
#include <IceGrid/Cache.h>
namespace IceGrid
{
class ServerCache;
class ObjectCache;
class AdapterCache;
class AllocatableObjectCache;
class NodeCache;
class NodeEntry;
typedef IceUtil::Handle<NodeEntry> NodeEntryPtr;
class CheckServerResult;
typedef IceUtil::Handle<CheckServerResult> CheckServerResultPtr;
class NodeObserverTopic;
typedef IceUtil::Handle<NodeObserverTopic> NodeObserverTopicPtr;
class CheckUpdateResult : public IceUtil::Shared
{
public:
CheckUpdateResult(const std::string&, const std::string&, bool, bool, const Ice::AsyncResultPtr&);
bool getResult();
const std::string& getServer() { return _server; }
private:
const std::string _server;
const std::string _node;
const bool _noRestart;
const Ice::AsyncResultPtr _result;
};
typedef IceUtil::Handle<CheckUpdateResult> CheckUpdateResultPtr;
class ServerEntry : public Allocatable
{
public:
ServerEntry(ServerCache&, const std::string&);
void sync();
void waitForSync(int);
void waitForSync()
{
waitForSync(-1);
}
void waitForSyncNoThrow(int);
void waitForSyncNoThrow()
{
waitForSyncNoThrow(-1);
}
void unsync();
bool addSyncCallback(const SynchronizationCallbackPtr&);
void update(const ServerInfo&, bool);
void destroy(bool);
ServerInfo getInfo(bool = false) const;
std::string getId() const;
ServerPrx getProxy(int&, int&, std::string&, bool = true, int = 0);
ServerPrx getProxy(bool = true, int = 0);
Ice::ObjectPrx getAdminProxy();
AdapterPrx getAdapter(const std::string&, bool);
AdapterPrx getAdapter(int&, int&, const std::string&, bool);
float getLoad(LoadSample) const;
bool canRemove();
CheckUpdateResultPtr checkUpdate(const ServerInfo&, bool);
bool isDestroyed();
void loadCallback(const ServerPrx&, const AdapterPrxDict&, int, int);
void destroyCallback();
void exception(const Ice::Exception&);
virtual bool isEnabled() const;
virtual void allocated(const SessionIPtr&);
virtual void allocatedNoSync(const SessionIPtr&);
virtual void released(const SessionIPtr&);
virtual void releasedNoSync(const SessionIPtr&);
private:
void syncImpl();
void waitImpl(int);
void synchronized();
void synchronized(const Ice::Exception&);
ServerCache& _cache;
const std::string _id;
IceInternal::UniquePtr<ServerInfo> _loaded;
IceInternal::UniquePtr<ServerInfo> _load;
IceInternal::UniquePtr<ServerInfo> _destroy;
ServerPrx _proxy;
AdapterPrxDict _adapters;
int _activationTimeout;
int _deactivationTimeout;
bool _synchronizing;
bool _updated;
IceInternal::UniquePtr<Ice::Exception> _exception;
bool _noRestart;
std::vector<SynchronizationCallbackPtr> _callbacks;
SessionIPtr _session;
};
typedef IceUtil::Handle<ServerEntry> ServerEntryPtr;
typedef std::vector<ServerEntryPtr> ServerEntrySeq;
class ServerCache : public CacheByString<ServerEntry>
{
public:
#ifdef __SUNPRO_CC
using CacheByString<ServerEntry>::remove;
#endif
ServerCache(const Ice::CommunicatorPtr&, const std::string&, NodeCache&, AdapterCache&, ObjectCache&,
AllocatableObjectCache&);
ServerEntryPtr add(const ServerInfo&);
ServerEntryPtr get(const std::string&) const;
bool has(const std::string&) const;
ServerEntryPtr remove(const std::string&, bool);
void preUpdate(const ServerInfo&, bool);
ServerEntryPtr postUpdate(const ServerInfo&, bool);
void clear(const std::string&);
NodeCache& getNodeCache() const { return _nodeCache; }
Ice::CommunicatorPtr getCommunicator() const { return _communicator; }
const std::string& getInstanceName() const { return _instanceName; }
const NodeObserverTopicPtr& getNodeObserverTopic() const { return _nodeObserverTopic; }
void setNodeObserverTopic(const NodeObserverTopicPtr&);
private:
void addCommunicator(const CommunicatorDescriptorPtr&, const CommunicatorDescriptorPtr&, const ServerEntryPtr&,
const std::string&);
void removeCommunicator(const CommunicatorDescriptorPtr&, const CommunicatorDescriptorPtr&, const ServerEntryPtr&);
friend struct AddCommunicator;
friend struct RemoveCommunicator;
const Ice::CommunicatorPtr _communicator;
const std::string _instanceName;
NodeCache& _nodeCache;
AdapterCache& _adapterCache;
ObjectCache& _objectCache;
AllocatableObjectCache& _allocatableObjectCache;
NodeObserverTopicPtr _nodeObserverTopic;
};
};
#endif
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