Description:

Extends "abstract template type" TCondition. This implementation constitutes the simplest possible derivate, by

holding just a boolean member, and
by providing a similar generic interface.
See also
Chapter A.5 Collecting Caller Information of the General Programmer's Manual.

Definition at line 340 of file condition.inl.

Inheritance diagram for alib::threads::Event:

Public Method Index:
	Event (const character *dbgName)
void	Reset (ALIB_DBG_TAKE_CI)
void	ResetAndWait (ALIB_DBG_TAKE_CI)
void	ResetAndWait (const Ticks &wakeUpTime, const CallerInfo &ci)
void	ResetAndWait (const Ticks::Duration &maxWaitTimeSpan, const CallerInfo &ci)
void	ResetAndWait (const Ticks::Duration::TDuration &maxWaitTimeSpan, const CallerInfo &ci)
void	Set (ALIB_DBG_TAKE_CI)
void	SetAll (ALIB_DBG_TAKE_CI)
void	Wait (ALIB_DBG_TAKE_CI)
void	Wait (const Ticks &wakeUpTime, const CallerInfo &ci)
void	Wait (const Ticks::Duration &maxWaitTimeSpan, const CallerInfo &ci)
void	Wait (const Ticks::Duration::TDuration &maxWaitTimeSpan, const CallerInfo &ci)

Protected Field Index:
bool	notified = false
	Boolean member which records notifications. Defaults to not-notified.
Protected Field Index: inherited from alib::threads::TCondition< Event >
std::condition_variable	conditionVariable
	The condition variable used for blocking and notification.
DbgConditionAsserter	Dbg
	The debug tool instance.
std::mutex	mutex
	The mutex used for locking this instance.

Protected Method Index:
bool	isConditionMet ()
Protected Method Index: inherited from alib::threads::TCondition< Event >
	TCondition (const character *dbgName)
void	Acquire (ALIB_DBG_TAKE_CI)
Event &	cast ()
void	Release (ALIB_DBG_TAKE_CI)
void	ReleaseAndNotify (ALIB_DBG_TAKE_CI)
void	ReleaseAndNotifyAll (ALIB_DBG_TAKE_CI)
void	WaitForNotification (ALIB_DBG_TAKE_CI)

Field Details:

◆ notified

bool alib::threads::Event::notified = false

protected

Boolean member which records notifications. Defaults to not-notified.

Definition at line 349 of file condition.inl.

Constructor(s) / Destructor Details:

◆ Event()

alib::threads::Event::Event ( const character * dbgName )

inline

Defaulted default constructor.

Parameters

dbgName A name for the condition. Only available with debug-compilations.

Definition at line 367 of file condition.inl.

Method Details:

◆ isConditionMet()

bool alib::threads::Event::isConditionMet ( )

inlineprotected

In general, derivates of TCondition have to return true if the former reason for blocking a thread is now fulfilled.

Returns: This implementation returns the value of field member notified.

Definition at line 355 of file condition.inl.

◆ Reset()

void alib::threads::Event::Reset ( ALIB_DBG_TAKE_CI )

inline

Resets the condition (flag becomes false). No notification is sent.

Debug Parameter:: Pass macro ALIB_CALLER_PRUNED with invocations.

Definition at line 393 of file condition.inl.

◆ ResetAndWait() [1/4]

void alib::threads::Event::ResetAndWait ( ALIB_DBG_TAKE_CI )

inline

Clears the condition first and then waits (for an unlimited time). This provides edge-triggered semantics comparable to the previous implementation of Wait.

Debug Parameter:: Pass macro ALIB_CALLER_PRUNED with invocations.

Definition at line 418 of file condition.inl.

◆ ResetAndWait() [2/4]

void alib::threads::Event::ResetAndWait	(	const Ticks &	wakeUpTime,
		const CallerInfo &	ci )

inline

Clears the condition first and then waits until a given point in time.

Parameters

wakeUpTime	The point in time to wake up, even if not notified.
ci	Caller information. Use the macro ALIB_COMMA_CALLER_PRUNED with invocations.

Definition at line 515 of file condition.inl.

◆ ResetAndWait() [3/4]

void alib::threads::Event::ResetAndWait	(	const Ticks::Duration &	maxWaitTimeSpan,
		const CallerInfo &	ci )

inline

Clears the condition first and then waits for up to a given duration.

Parameters

maxWaitTimeSpan	The maximum time to wait.
ci	Caller information. Use the macro ALIB_COMMA_CALLER_PRUNED with invocations.

Definition at line 483 of file condition.inl.

◆ ResetAndWait() [4/4]

void alib::threads::Event::ResetAndWait	(	const Ticks::Duration::TDuration &	maxWaitTimeSpan,
		const CallerInfo &	ci )

inline

Clears the condition first and then waits for up to a given duration.

Parameters

maxWaitTimeSpan	The maximum time to wait.
ci	Caller information. Use the macro ALIB_COMMA_CALLER_PRUNED with invocations.

Definition at line 447 of file condition.inl.

◆ Set()

void alib::threads::Event::Set ( ALIB_DBG_TAKE_CI )

inline

Sets the condition (flag becomes true) and wakes up the next sleeping thread.

Debug Parameter:: Pass macro ALIB_CALLER_PRUNED with invocations.

Definition at line 375 of file condition.inl.

◆ SetAll()

void alib::threads::Event::SetAll ( ALIB_DBG_TAKE_CI )

inline

Sets the condition (flag becomes true) and wakes up all sleeping threads.

Debug Parameter:: Pass macro ALIB_CALLER_PRUNED with invocations.

Definition at line 384 of file condition.inl.

◆ Wait() [1/4]

void alib::threads::Event::Wait ( ALIB_DBG_TAKE_CI )

inline

Waits until the condition is set (for an unlimited time). This method does not modify the condition state.

Debug Parameter:: Pass macro ALIB_CALLER_PRUNED with invocations.

Definition at line 403 of file condition.inl.

◆ Wait() [2/4]

void alib::threads::Event::Wait	(	const Ticks &	wakeUpTime,
		const CallerInfo &	ci )

inline

Waits for notification, but only until a given point in time.

Before invoking this method, this object has to be acquired. After the wake-up call, the internal mutex is (again) acquired and thus has to be released later.

Parameters

wakeUpTime	The point in time to wake up, even if not notified.
ci	Caller information. Use the macro ALIB_COMMA_CALLER_PRUNED with invocations. Waits until the condition is set, but only until a given point in time. This method does not modify the condition state.

Definition at line 505 of file condition.inl.

◆ Wait() [3/4]

void alib::threads::Event::Wait	(	const Ticks::Duration &	maxWaitTimeSpan,
		const CallerInfo &	ci )

inline

Waits for notification but only for a given duration.

Before invoking this method, this object has to be acquired. After the wake-up call, the internal mutex is (again) acquired and thus has to be released later.

Parameters

maxWaitTimeSpan	The maximum time to wait.
ci	Caller information. Use the macro ALIB_COMMA_CALLER_PRUNED with invocations.

Definition at line 476 of file condition.inl.

◆ Wait() [4/4]

void alib::threads::Event::Wait	(	const Ticks::Duration::TDuration &	maxWaitTimeSpan,
		const CallerInfo &	ci )

inline

Same as Wait(const Ticks::Duration&, const CallerInfo&), but only up to a given duration. This method does not modify the condition state.

Parameters

maxWaitTimeSpan	The maximum time to wait.
ci	Caller information. Use the macro ALIB_COMMA_CALLER_PRUNED with invocations.

Definition at line 437 of file condition.inl.

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

condition.inl

Description:

Public Method Index:

Protected Field Index:

Protected Method Index:

Field Details:

◆ notified

Constructor(s) / Destructor Details:

◆ Event()

Method Details:

◆ isConditionMet()

◆ Reset()

◆ ResetAndWait() [1/4]

◆ ResetAndWait() [2/4]

◆ ResetAndWait() [3/4]

◆ ResetAndWait() [4/4]

◆ Set()

◆ SetAll()

◆ Wait() [1/4]

◆ Wait() [2/4]

◆ Wait() [3/4]

◆ Wait() [4/4]