#include <v8-platform.h>

Inheritance diagram for v8::Platform:

Collaboration diagram for v8::Platform:

Public Types
enum	ExpectedRuntime { kShortRunningTask , kLongRunningTask }
	This enum is used to indicate whether a task is potentially long running, or causes a long wait. More...

Public Member Functions
virtual	~Platform ()

virtual void	CallOnBackgroundThread (Task *task, ExpectedRuntime expected_runtime)=0
	Schedules a task to be invoked on a background thread. More...

virtual void	CallOnForegroundThread (Isolate isolate, Task task)=0
	Schedules a task to be invoked on a foreground thread wrt a specific \|isolate\|. More...

Detailed Description

V8 Platform abstraction layer.

The embedder has to provide an implementation of this interface before initializing the rest of V8.

Definition at line 28 of file v8-platform.h.

Member Enumeration Documentation

◆ ExpectedRuntime

enum v8::Platform::ExpectedRuntime

This enum is used to indicate whether a task is potentially long running, or causes a long wait.

The embedder might want to use this hint to decide whether to execute the task on a dedicated thread.

Enumerator
kShortRunningTask
kLongRunningTask

Definition at line 35 of file v8-platform.h.

                        {
     kShortRunningTask,
     kLongRunningTask
   };

Constructor & Destructor Documentation

◆ ~Platform()

virtual v8::Platform::~Platform ( )

inlinevirtual

Definition at line 40 of file v8-platform.h.

40 {}

Member Function Documentation

◆ CallOnBackgroundThread()

virtual void v8::Platform::CallOnBackgroundThread	(	Task *	task,
		ExpectedRuntime	expected_runtime
	)

pure virtual

Schedules a task to be invoked on a background thread.

|expected_runtime| indicates that the task will run a long time. The Platform implementation takes ownership of |task|. There is no guarantee about order of execution of tasks wrt order of scheduling, nor is there a guarantee about the thread the task will be run on.

Implemented in v8::platform::DefaultPlatform.

Referenced by v8::internal::MarkCompactCollector::StartSweeperThreads().

Here is the caller graph for this function:

◆ CallOnForegroundThread()

virtual void v8::Platform::CallOnForegroundThread	(	Isolate *	isolate,
		Task *	task
	)

pure virtual

Schedules a task to be invoked on a foreground thread wrt a specific |isolate|.

Tasks posted for the same isolate should be execute in order of scheduling. The definition of "foreground" is opaque to V8.