#include <v8-platform.h>

Inheritance diagram for v8::TaskRunner:

Collaboration diagram for v8::TaskRunner:

Public Member Functions
void	PostTask (std::unique_ptr< Task > task, const SourceLocation &location=SourceLocation::Current())

void	PostNonNestableTask (std::unique_ptr< Task > task, const SourceLocation &location=SourceLocation::Current())

void	PostDelayedTask (std::unique_ptr< Task > task, double delay_in_seconds, const SourceLocation &location=SourceLocation::Current())

void	PostNonNestableDelayedTask (std::unique_ptr< Task > task, double delay_in_seconds, const SourceLocation &location=SourceLocation::Current())

void	PostIdleTask (std::unique_ptr< IdleTask > task, const SourceLocation &location=SourceLocation::Current())

virtual bool	IdleTasksEnabled ()=0

virtual bool	NonNestableTasksEnabled () const

virtual bool	NonNestableDelayedTasksEnabled () const

	TaskRunner ()=default

virtual	~TaskRunner ()=default

	TaskRunner (const TaskRunner &)=delete

TaskRunner &	operator= (const TaskRunner &)=delete

Protected Member Functions
virtual void	PostTaskImpl (std::unique_ptr< Task > task, const SourceLocation &location)

virtual void	PostNonNestableTaskImpl (std::unique_ptr< Task > task, const SourceLocation &location)

virtual void	PostDelayedTaskImpl (std::unique_ptr< Task > task, double delay_in_seconds, const SourceLocation &location)

virtual void	PostNonNestableDelayedTaskImpl (std::unique_ptr< Task > task, double delay_in_seconds, const SourceLocation &location)

virtual void	PostIdleTaskImpl (std::unique_ptr< IdleTask > task, const SourceLocation &location)

Detailed Description

A TaskRunner allows scheduling of tasks. The TaskRunner may still be used to post tasks after the isolate gets destructed, but these tasks may not get executed anymore. All tasks posted to a given TaskRunner will be invoked in sequence. Tasks can be posted from any thread.

Definition at line 74 of file v8-platform.h.

Constructor & Destructor Documentation

◆ TaskRunner() [1/2]

v8::TaskRunner::TaskRunner ( )

default

◆ ~TaskRunner()

virtual v8::TaskRunner::~TaskRunner ( )

virtualdefault

◆ TaskRunner() [2/2]

v8::TaskRunner::TaskRunner ( const TaskRunner & )

delete

Member Function Documentation

◆ IdleTasksEnabled()

virtual bool v8::TaskRunner::IdleTasksEnabled ( )

pure virtual

Returns true if idle tasks are enabled for this TaskRunner.

Implemented in v8::DelayedTasksPlatform::DelayedTaskRunner.

◆ NonNestableDelayedTasksEnabled()

virtual bool v8::TaskRunner::NonNestableDelayedTasksEnabled ( ) const

inlinevirtual

Returns true if non-nestable delayed tasks are enabled for this TaskRunner.

Definition at line 176 of file v8-platform.h.

◆ NonNestableTasksEnabled()

virtual bool v8::TaskRunner::NonNestableTasksEnabled ( ) const

inlinevirtual

Returns true if non-nestable tasks are enabled for this TaskRunner.

Reimplemented in v8::DelayedTasksPlatform::DelayedTaskRunner.

Definition at line 171 of file v8-platform.h.

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◆ operator=()

TaskRunner & v8::TaskRunner::operator= ( const TaskRunner & )

delete

◆ PostDelayedTask()

void v8::TaskRunner::PostDelayedTask	(	std::unique_ptr< Task >	task,
		double	delay_in_seconds,
		const SourceLocation &	location = SourceLocation::Current() )

inline

Schedules a task to be invoked by this TaskRunner. The task is scheduled after the given number of seconds |delay_in_seconds|. The TaskRunner implementation takes ownership of |task|.

Embedders should override PostDelayedTaskImpl instead of this.

Definition at line 117 of file v8-platform.h.

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◆ PostDelayedTaskImpl()

virtual void v8::TaskRunner::PostDelayedTaskImpl	(	std::unique_ptr< Task >	task,
		double	delay_in_seconds,
		const SourceLocation &	location )

inlineprotectedvirtual

Reimplemented in v8::DelayedTasksPlatform::DelayedTaskRunner.

Definition at line 192 of file v8-platform.h.

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◆ PostIdleTask()

void v8::TaskRunner::PostIdleTask	(	std::unique_ptr< IdleTask >	task,
		const SourceLocation &	location = SourceLocation::Current() )

inline

Schedules an idle task to be invoked by this TaskRunner. The task is scheduled when the embedder is idle. Requires that |TaskRunnerIdleTasksEnabled()| is true. Idle tasks may be reordered relative to other task types and may be starved for an arbitrarily long time if no idle time is available. The TaskRunner implementation takes ownership of |task|.

Embedders should override PostIdleTaskImpl instead of this.

Definition at line 157 of file v8-platform.h.

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◆ PostIdleTaskImpl()

virtual void v8::TaskRunner::PostIdleTaskImpl	(	std::unique_ptr< IdleTask >	task,
		const SourceLocation &	location )

inlineprotectedvirtual

Reimplemented in v8::DelayedTasksPlatform::DelayedTaskRunner.

Definition at line 198 of file v8-platform.h.

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◆ PostNonNestableDelayedTask()

void v8::TaskRunner::PostNonNestableDelayedTask	(	std::unique_ptr< Task >	task,
		double	delay_in_seconds,
		const SourceLocation &	location = SourceLocation::Current() )

inline

Tasks which shouldn't be interleaved with JS execution must be posted with |PostNonNestableTask| or |PostNonNestableDelayedTask|. This is because the embedder may process tasks in a callback which is called during JS execution.

In particular, tasks which execute JS must be non-nestable, since JS execution is not allowed to nest.

Requires that |TaskRunnerNonNestableDelayedTasksEnabled()| is true.

Embedders should override PostNonNestableDelayedTaskImpl instead of this.

Definition at line 141 of file v8-platform.h.

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◆ PostNonNestableDelayedTaskImpl()

virtual void v8::TaskRunner::PostNonNestableDelayedTaskImpl	(	std::unique_ptr< Task >	task,
		double	delay_in_seconds,
		const SourceLocation &	location )

inlineprotectedvirtual

Definition at line 195 of file v8-platform.h.

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◆ PostNonNestableTask()

void v8::TaskRunner::PostNonNestableTask	(	std::unique_ptr< Task >	task,
		const SourceLocation &	location = SourceLocation::Current() )

inline

Schedules a task to be invoked by this TaskRunner. The TaskRunner implementation takes ownership of |task|. The |task| cannot be nested within other task executions.

Tasks which shouldn't be interleaved with JS execution must be posted with |PostNonNestableTask| or |PostNonNestableDelayedTask|. This is because the embedder may process tasks in a callback which is called during JS execution.

In particular, tasks which execute JS must be non-nestable, since JS execution is not allowed to nest.

Requires that |TaskRunnerNonNestableTasksEnabled()| is true.

Embedders should override PostNonNestableTaskImpl instead of this.

Definition at line 104 of file v8-platform.h.

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◆ PostNonNestableTaskImpl()

virtual void v8::TaskRunner::PostNonNestableTaskImpl	(	std::unique_ptr< Task >	task,
		const SourceLocation &	location )

inlineprotectedvirtual

Reimplemented in v8::DelayedTasksPlatform::DelayedTaskRunner.

Definition at line 190 of file v8-platform.h.

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◆ PostTask()

void v8::TaskRunner::PostTask	(	std::unique_ptr< Task >	task,
		const SourceLocation &	location = SourceLocation::Current() )

inline

Schedules a task to be invoked by this TaskRunner. The TaskRunner implementation takes ownership of |task|.

Embedders should override PostTaskImpl instead of this.

Definition at line 82 of file v8-platform.h.

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◆ PostTaskImpl()

virtual void v8::TaskRunner::PostTaskImpl	(	std::unique_ptr< Task >	task,
		const SourceLocation &	location )

inlineprotectedvirtual

Implementation of above methods with an additional location argument.

Reimplemented in v8::DelayedTasksPlatform::DelayedTaskRunner.

Definition at line 188 of file v8-platform.h.

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

include/v8-platform.h

Public Member Functions

Protected Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ TaskRunner() [1/2]

◆ ~TaskRunner()

◆ TaskRunner() [2/2]

Member Function Documentation

◆ IdleTasksEnabled()

◆ NonNestableDelayedTasksEnabled()

◆ NonNestableTasksEnabled()

◆ operator=()

◆ PostDelayedTask()

◆ PostDelayedTaskImpl()

◆ PostIdleTask()

◆ PostIdleTaskImpl()

◆ PostNonNestableDelayedTask()

◆ PostNonNestableDelayedTaskImpl()

◆ PostNonNestableTask()

◆ PostNonNestableTaskImpl()

◆ PostTask()

◆ PostTaskImpl()