Digikam::ActionThreadBase Class Reference

Inheritance diagram for Digikam::ActionThreadBase:

Public Member Functions
	ActionThreadBase (QObject *const parent=nullptr)
void	cancel (bool isCancel=true)
	Cancel processing of current jobs under progress.
int	expiryTimeout () const
int	maximumNumberOfThreads () const
void	setDefaultMaximumNumberOfThreads ()
	Reset maximum number of threads used to parallelize collection of job processing to max core detected on computer.
void	setExpiryTimeout (int timeout)
	Adjust the thread expiry timeout value in milliseconds.
void	setMaximumNumberOfThreads (int n)
	Adjust maximum number of threads used to parallelize collection of job processing.

Static Public Member Functions
static void	setCurrentThreadName (const QString &name)
	Call this method to customize a thread name visible in a process viewer.

Protected Slots
virtual void	slotJobFinished ()

Protected Member Functions
void	appendJobs (const ActionJobCollection &jobs)
	Append a collection of jobs to process into QThreadPool.
bool	isEmpty () const
int	pendingCount () const
void	run () override
	Main thread loop used to process jobs in todo list.

Member Function Documentation

appendJobs()

void Digikam::ActionThreadBase::appendJobs ( const ActionJobCollection &  jobs )

protected

Jobs are add to pending lists and will be deleted by ActionThreadBase, not QThreadPool.

expiryTimeout()

int Digikam::ActionThreadBase::expiryTimeout

(

)

const

Returns

the thread expiry timeout value in milliseconds.

isEmpty()

bool Digikam::ActionThreadBase::isEmpty ( ) const

protected

Returns

true if list of pending jobs to process is empty.

maximumNumberOfThreads()

int Digikam::ActionThreadBase::maximumNumberOfThreads

(

)

const

Returns

the maximum number of threads used to parallelize collection of job processing.

pendingCount()

int Digikam::ActionThreadBase::pendingCount ( ) const

protected

Returns

the number of pending jobs to process.

setCurrentThreadName()

void Digikam::ActionThreadBase::setCurrentThreadName ( const QString &  name )

static

This will replace the default "Thread (pooled)" string set by Qt for QRunable and QtConcurrent. To show the thread names you can use: Linux: htop –filter=PNAME –tree" sudo gdb -p PID -batch -ex "info threads" -ex "quit" macOS: sudo lldb -p PID -o "thread list" -o "quit" Windows: Microsoft Process Explorer https://learn.microsoft.com/fr-fr/sysinternals/downloads/process-explorer String limitation: Linux: 15 characters max (UTF8). macOS: 64 characters max (UTF8). Windows: 260 characters max (UTF16).

setDefaultMaximumNumberOfThreads()

void Digikam::ActionThreadBase::setDefaultMaximumNumberOfThreads

(

)

This method is called in constructor.