TGo4AppControlTimer Class Reference

Timer with main purpose to block the root TApplication loop during thread execution. More...

#include <TGo4AppControlTimer.h>

List of all members.

Public Member Functions
	TGo4AppControlTimer (TGo4ThreadManager *manager, Long_t msperiod=3000, Bool_t mode=kTRUE)
virtual	~TGo4AppControlTimer ()
void	SetManager (TGo4ThreadManager *parent)
	Sets reference to new thread manager.
virtual Bool_t	Notify ()
	Routine called from TTimer on timeout.
const TCondition *	GetCondition () const
	Returns handle for internal condition which is used to block the gSystem.
void	SetApplicationRun (Bool_t flag=kTRUE)
	Switches between blocking and non blocking mode of the timer.
Bool_t	GetApplicationRun ()
	Status of the application run flag.
Protected Attributes
TGo4ThreadManager *	fxManager
	Backlink to threadmanager who owns this timer.
Static Protected Attributes
static UInt_t	fguTERMWAIT = 3000
	time in ms to wait for all Runnables being stopped before Termination; after this time, the AllWaiting() of TGo4ThreadHandler is tested again, until the max number of testing cycles (fgiTERMWAITCYCLES) is reached; then Termination is done anyway
static Int_t	fgiTERMWAITCYCLES = 5
	On Termination, Notify will test fgiTERMWAITCYCLES times if Runnables are stopped, i.e.
Private Member Functions
	TGo4AppControlTimer ()
Private Attributes
Bool_t	fbApplicationRun
TCondition *	fxCondition

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Detailed Description

Timer with main purpose to block the root TApplication loop during thread execution.

Moreover, this timer calls Initialization() function of threadmanager, which can be overridden by user to define any actions which should not be run within a thread (critical root system calls, like opening TServerSocket, should be done within the application loop, i.e. in the timer). In threadmanager non-blocking-mode, Initialization() is called from timer regularly with the period specified in threadmanager; in blocking mode it is called once after each threadmanager UnBlockApp(). This timer is also responsible for proper termination of the threadmanager.

Author:

J. Adamczewski

Go4 project-DVEE-GSI Darmstadt

Germany

j.adamczewski@gsi.de

Version:

0.9

Since:

jul 2000-oct 2001

Definition at line 42 of file TGo4AppControlTimer.h.

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Constructor & Destructor Documentation

TGo4AppControlTimer::TGo4AppControlTimer (  TGo4ThreadManager *  manager, Long_t  msperiod = 3000, Bool_t  mode = kTRUE )

Definition at line 32 of file TGo4AppControlTimer.cxx. References fxCondition, fxManager, and TRACE.

TGo4AppControlTimer::~TGo4AppControlTimer (   )  [virtual]

Definition at line 43 of file TGo4AppControlTimer.cxx. References fxCondition, and TRACE.

TGo4AppControlTimer::TGo4AppControlTimer (   )  [private]

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Member Function Documentation

void TGo4AppControlTimer::SetManager (  TGo4ThreadManager *  parent  )  [inline]

Sets reference to new thread manager. Definition at line 50 of file TGo4AppControlTimer.h. References fxManager.

Bool_t TGo4AppControlTimer::Notify (   )  [virtual]

Routine called from TTimer on timeout. Definition at line 54 of file TGo4AppControlTimer.cxx. References TGo4Log::Debug(), fbApplicationRun, fgiTERMWAITCYCLES, fguTERMWAIT, fxCondition, fxManager, TGo4ThreadManager::GetWorkHandler(), TGo4ThreadManager::Initialization(), TGo4ThreadManager::IsTerminateApp(), TGo4ThreadManager::IsTerminating(), and TRACE.

const TCondition* TGo4AppControlTimer::GetCondition (   )  const [inline]

Returns handle for internal condition which is used to block the gSystem. Definition at line 59 of file TGo4AppControlTimer.h. References fxCondition. Referenced by TGo4ThreadManager::UnBlockApp().

void TGo4AppControlTimer::SetApplicationRun (  Bool_t  flag = kTRUE  )  [inline]

Switches between blocking and non blocking mode of the timer. If set to kTRUE, timer will not block the root system. If set to kFALSE, timer will suspend in a condition wait and therefore the InnerLoop() of root is blocked. Definition at line 67 of file TGo4AppControlTimer.h. References fbApplicationRun. Referenced by TGo4ThreadManager::BlockApp(), TGo4ThreadManager::TGo4ThreadManager(), and TGo4ThreadManager::UnBlockApp().

Bool_t TGo4AppControlTimer::GetApplicationRun (   )

Status of the application run flag. If true, root application is _not_ blocked. Definition at line 142 of file TGo4AppControlTimer.cxx. References fbApplicationRun, and TRACE. Referenced by TGo4ThreadManager::UnBlockApp().

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Member Data Documentation

UInt_t TGo4AppControlTimer::fguTERMWAIT = 3000 [static, protected]

time in ms to wait for all Runnables being stopped before Termination; after this time, the AllWaiting() of TGo4ThreadHandler is tested again, until the max number of testing cycles (fgiTERMWAITCYCLES) is reached; then Termination is done anyway Definition at line 28 of file TGo4AppControlTimer.cxx. Referenced by Notify().

Int_t TGo4AppControlTimer::fgiTERMWAITCYCLES = 5 [static, protected]

On Termination, Notify will test fgiTERMWAITCYCLES times if Runnables are stopped, i.e. all TGo4Threads are in TCondition wait (safe cancelling point); afterwards, threads are deleted anyway Definition at line 30 of file TGo4AppControlTimer.cxx. Referenced by Notify().

TGo4ThreadManager* TGo4AppControlTimer::fxManager [protected]

Backlink to threadmanager who owns this timer. 1 1 Definition at line 97 of file TGo4AppControlTimer.h. Referenced by Notify(), SetManager(), and TGo4AppControlTimer().

Bool_t TGo4AppControlTimer::fbApplicationRun [private]

Definition at line 101 of file TGo4AppControlTimer.h. Referenced by GetApplicationRun(), Notify(), and SetApplicationRun().

TCondition* TGo4AppControlTimer::fxCondition [private]

Definition at line 103 of file TGo4AppControlTimer.h. Referenced by GetCondition(), Notify(), TGo4AppControlTimer(), and ~TGo4AppControlTimer().

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The documentation for this class was generated from the following files:

• Go4ThreadManager/TGo4AppControlTimer.h
• Go4ThreadManager/TGo4AppControlTimer.cxx

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