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CAppTaskService Class Reference

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CAppTaskService - Application Task Service. More...

#include <gui/framework/app_task_service.hpp>

+ Inheritance diagram for CAppTaskService:
+ Collaboration diagram for CAppTaskService:

Classes

class  CTaskRecord
 

Public Types

enum  EConsts { eInvalidTaskID = -1 }
 
typedef IAppTask::ETaskState TTaskState
 
typedef CIRef< IAppTaskTTaskRef
 
typedef vector< TTaskRefTTaskRefVec
 
typedef CRef< CTaskRecordTRecordRef
 
typedef vector< TRecordRefTRecRefVec
 
- Public Types inherited from CObject
enum  EAllocFillMode { eAllocFillNone = 1 , eAllocFillZero , eAllocFillPattern }
 Control filling of newly allocated memory. More...
 
typedef CObjectCounterLocker TLockerType
 Default locker type for CRef. More...
 
typedef atomic< Uint8TCounter
 Counter type is CAtomiCounter. More...
 
typedef Uint8 TCount
 Alias for value type of counter. More...
 
- Public Types inherited from CEventHandler
enum  EDispatch { eDispatch_SelfOnly , eDispatch_AllHandlers , eDispatch_FirstHandler , eDispatch_Default = eDispatch_AllHandlers }
 enum controlling dispatching strategies More...
 
enum  EPoolName {
  ePool_Default = 0 , ePool_Parent , ePool_Child , ePool_Sibling ,
  ePool_NextAvailable
}
 Identifiers for standard pools. More...
 
typedef vector< CEventHandler * > TListeners
 
typedef map< int, TListenersTPools
 
typedef list< AutoPtr< SPostRequest > > TPostRequests
 
typedef std::map< CEventHandler *, intTHandlerToCount
 
typedef void(* FOnPostCallback) ()
 

Public Member Functions

 CAppTaskService ()
 
virtual ~CAppTaskService ()
 
void AddTask (IAppTask &task)
 Add a task to the queue. More...
 
bool CancelTask (IAppTask &task, bool throw_on_error=true)
 Places a request to cancel a backgrounded task. More...
 
bool IdleCallback ()
 This function shall be called in the the application idle function, it polls the Task Queue and executes pending tasks. More...
 
void GetPendingTasks (TRecRefVec &tasks)
 Inspection interface - supposed to be used from the main UI thread only. More...
 
void GetBackgroundedTasks (TRecRefVec &tasks)
 
int GetRunningTasksCount (bool vis_only=true)
 returns the number of running and backgrounded tasks More...
 
IService implementation
virtual void InitService ()
 
virtual void ShutDownService ()
 Cancels all backgrounded tasks, removes pending tasks and blocks processing of incoming requests and events. More...
 
void PreShutDownService ()
 
IServiceLocatorConsumer interface implementation
virtual void SetServiceLocator (IServiceLocator *srv_locator)
 
- Public Member Functions inherited from CObjectEx
 CObjectEx (void)
 
virtual ~CObjectEx (void)
 
- Public Member Functions inherited from CObject
 CObject (void)
 Constructor. More...
 
 CObject (const CObject &src)
 Copy constructor. More...
 
virtual ~CObject (void)
 Destructor. More...
 
CObjectoperator= (const CObject &src) THROWS_NONE
 Assignment operator. More...
 
bool CanBeDeleted (void) const THROWS_NONE
 Check if object can be deleted. More...
 
bool IsAllocatedInPool (void) const THROWS_NONE
 Check if object is allocated in memory pool (not system heap) More...
 
bool Referenced (void) const THROWS_NONE
 Check if object is referenced. More...
 
bool ReferencedOnlyOnce (void) const THROWS_NONE
 Check if object is referenced only once. More...
 
void AddReference (void) const
 Add reference to object. More...
 
void RemoveReference (void) const
 Remove reference to object. More...
 
void ReleaseReference (void) const
 Remove reference without deleting object. More...
 
virtual void DoNotDeleteThisObject (void)
 Mark this object as not allocated in heap – do not delete this object. More...
 
virtual void DoDeleteThisObject (void)
 Mark this object as allocated in heap – object can be deleted. More...
 
void * operator new (size_t size)
 Define new operator for memory allocation. More...
 
void * operator new[] (size_t size)
 Define new[] operator for 'array' memory allocation. More...
 
void operator delete (void *ptr)
 Define delete operator for memory deallocation. More...
 
void operator delete[] (void *ptr)
 Define delete[] operator for memory deallocation. More...
 
void * operator new (size_t size, void *place)
 Define new operator. More...
 
void operator delete (void *ptr, void *place)
 Define delete operator. More...
 
void * operator new (size_t size, CObjectMemoryPool *place)
 Define new operator using memory pool. More...
 
void operator delete (void *ptr, CObjectMemoryPool *place)
 Define delete operator. More...
 
virtual void DebugDump (CDebugDumpContext ddc, unsigned int depth) const
 Define method for dumping debug information. More...
 
- Public Member Functions inherited from CDebugDumpable
 CDebugDumpable (void)
 
virtual ~CDebugDumpable (void)
 
void DebugDumpText (ostream &out, const string &bundle, unsigned int depth) const
 
void DebugDumpFormat (CDebugDumpFormatter &ddf, const string &bundle, unsigned int depth) const
 
void DumpToConsole (void) const
 
- Public Member Functions inherited from CWeakObject
 CWeakObject (void)
 
virtual ~CWeakObject (void)
 
CPtrToObjectProxyGetPtrProxy (void) const
 Get pointer to proxy object containing pointer to this object. More...
 
- Public Member Functions inherited from CEventHandler
 CEventHandler ()
 CEventHandler. More...
 
virtual ~CEventHandler ()
 
virtual void AddListener (CEventHandler *listener, int pool_name=ePool_Default)
 Add a listener. More...
 
virtual void RemoveListener (CEventHandler *listener)
 Remove a listener. More...
 
virtual void RemoveAllListeners (void)
 
virtual bool HasListener (CEventHandler *listener, int pool_name=ePool_Default) const
 returns "true" if the given listener belongs to the specified pool More...
 
virtual const TListenersGetListeners (int pool_name=ePool_Default) const
 returns a set of listeners fro the specified pool More...
 
virtual bool OnEvent (CEvent *evt)
 Processes en event. Returns "true" if event has been processed. More...
 
virtual bool Dispatch (CEvent *evt, EDispatch disp_how=eDispatch_Default, int pool_name=ePool_Default)
 Dispatches an event to the listeners (but does not handle it). More...
 
virtual bool Send (CEvent *evt, EDispatch disp_how=eDispatch_Default, int pool_name=ePool_Default)
 Sends an event synchronously. More...
 
virtual bool Send (CEvent *evt, int pool_name)
 
void Post (CRef< CEvent > evt, EDispatch disp_how=eDispatch_Default, int pool_name=ePool_Default)
 Handles an event asynchronously (process and/or dispatch). More...
 
- Public Member Functions inherited from IService
virtual ~IService ()
 
- Public Member Functions inherited from IServiceLocatorConsumer
virtual ~IServiceLocatorConsumer ()
 

Protected Types

typedef CSyncQueue< TRecordRefTQueue
 
typedef map< TTaskRef, TRecordRefTRecordMap
 

Protected Member Functions

void x_OnWakeUpSignal (CEvent *event)
 
void x_OnTaskCanceled (CEvent *event)
 
void x_OnStatusUpdate (CEvent *event)
 
void x_ExecuteNextTaskInQueue ()
 
void x_LogTask (IEventRecord::EType type, const string &prefix, IAppTask &task, const string &postfix, const string &details=kEmptyStr)
 
void x_ReportTaskFailure (IAppTask &task, const string &err_msg, const string &details)
 
- Protected Member Functions inherited from CObject
virtual void DeleteThis (void)
 Virtual method "deleting" this object. More...
 
- Protected Member Functions inherited from CWeakObject
void CleanWeakRefs (void) const
 Method cleaning all CWeakRefs referencing at this moment to the object After calling to this method all existing CWeakRefs referencing to the object will return NULL, so it effectively will be equal to deleting the object. More...
 
- Protected Member Functions inherited from CEventHandler
virtual const SEvtMapGetEventMap () const
 
void x_DeclareDead ()
 Removes itself unavailable for async event delivery. More...
 
void x_AddListenerToPool (CEventHandler *listener, int pool_name)
 

Protected Attributes

CMutex m_Mutex
 
IServiceLocatorm_ServiceLocator
 
IEventLogServicem_EventLogService
 
bool m_ShutDown
 
TQueue m_PendingTasks
 
TRecordMap m_BackgoundedTasks
 
IAppTaskm_RunningTask
 
- Protected Attributes inherited from CEventHandler
TPools m_Pools
 

Private Member Functions

 DECLARE_EVENT_MAP ()
 

Additional Inherited Members

- Static Public Member Functions inherited from CObject
static NCBI_XNCBI_EXPORT void ThrowNullPointerException (void)
 Define method to throw null pointer exception. More...
 
static NCBI_XNCBI_EXPORT void ThrowNullPointerException (const type_info &type)
 
static EAllocFillMode GetAllocFillMode (void)
 
static void SetAllocFillMode (EAllocFillMode mode)
 
static void SetAllocFillMode (const string &value)
 Set mode from configuration parameter value. More...
 
- Static Public Member Functions inherited from CDebugDumpable
static void EnableDebugDump (bool on)
 
- Static Public Member Functions inherited from CEventHandler
static bool HandlePostRequest ()
 
static void ClearPostQueue ()
 erases all events from the queue More...
 
static void DestroyPostQueue ()
 
- Static Public Attributes inherited from CObject
static const TCount eCounterBitsCanBeDeleted = 1 << 0
 Define possible object states. More...
 
static const TCount eCounterBitsInPlainHeap = 1 << 1
 Heap signature was found. More...
 
static const TCount eCounterBitsPlaceMask
 Mask for 'in heap' state flags. More...
 
static const int eCounterStep = 1 << 2
 Skip over the "in heap" bits. More...
 
static const TCount eCounterValid = TCount(1) << (sizeof(TCount) * 8 - 2)
 Minimal value for valid objects (reference counter is zero) Must be a single bit value. More...
 
static const TCount eCounterStateMask
 Valid object, and object in heap. More...
 
- Static Protected Attributes inherited from CEventHandler
static const SEvtMap sm_EvtMap
 

Detailed Description

CAppTaskService - Application Task Service.

Definition at line 69 of file app_task_service.hpp.


The documentation for this class was generated from the following files:
Modified on Sat Apr 27 11:17:54 2024 by modify_doxy.py rev. 669887