OW_PollingManager.hpp

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#ifndef OW_POLLING_MANAGER_HPP_
#define OW_POLLING_MANAGER_HPP_
#include "OW_config.h"
#include "OW_CIMFwd.hpp"
#include "OW_Thread.hpp"
#include "OW_Runnable.hpp"
#include "OW_List.hpp"
#include "OW_Array.hpp"
#include "OW_CIMInstance.hpp"
#include "OW_CIMValue.hpp"
#include "OW_CIMProperty.hpp"
#include "OW_PolledProviderIFC.hpp"
#include "OW_Condition.hpp"
#include "OW_ThreadBarrier.hpp"
#include "OW_ThreadPool.hpp"
#include "OW_CimomCommonFwd.hpp"
#include "OW_ServiceIFC.hpp"

namespace OW_NAMESPACE
{
class PollingManagerThread;

class OW_CIMOMCOMMON_API PollingManager : public ServiceIFC
{
public:
   PollingManager(const ProviderManagerRef& providerManager);
   virtual ~PollingManager();
   
   virtual String getName() const;
   virtual StringArray getDependencies() const;
   virtual void init(const ServiceEnvironmentIFCRef& env);
   virtual void start();
   virtual void shutdown();

   void addPolledProvider(const PolledProviderIFCRef& p);
private:
   IntrusiveReference<PollingManagerThread> m_pollingManagerThread;
};

class OW_CIMOMCOMMON_API PollingManagerThread : public Thread
{
public:
   PollingManagerThread(const ProviderManagerRef& providerManager);
   virtual ~PollingManagerThread();
   void init(const ServiceEnvironmentIFCRef& env);
   void shutdown();
   void waitUntilReady()
   {
      m_startedBarrier.wait();
   }
   void addPolledProvider(const PolledProviderIFCRef& p);
protected:
   virtual Int32 run();
private:
   class TriggerRunner : public Runnable
   {
   public:
      TriggerRunner(PollingManagerThread* svr,
         ServiceEnvironmentIFCRef env);
      virtual void run();
      PolledProviderIFCRef m_itp;
      time_t m_nextPoll;
      bool m_isRunning;
      Int32 m_pollInterval;
      PollingManagerThread* m_pollMan;
      ServiceEnvironmentIFCRef m_env;
      LoggerRef m_logger;
   private:
      void doCooperativeCancel();
      void doDefinitiveCancel();
   };
   typedef IntrusiveReference<TriggerRunner> TriggerRunnerRef;
   Array<TriggerRunnerRef> m_triggerRunners;
   bool m_shuttingDown;
   NonRecursiveMutex m_triggerGuard;
   Condition m_triggerCondition;
   ServiceEnvironmentIFCRef m_env;
   ProviderManagerRef m_providerManager;
   LoggerRef m_logger;
   ThreadBarrier m_startedBarrier;
   ThreadPoolRef m_triggerRunnerThreadPool;

   // m_triggerGuard must be locked before calling this function.
   UInt32 calcSleepTime(bool& rightNow, bool doInit);
   // m_triggerGuard must be locked before calling this function.
   void processTriggers();
   friend class TriggerRunner;

   virtual void doCooperativeCancel();
};

} // end namespace OW_NAMESPACE

#endif

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