fml::MessageLoopAndroid Class Reference

#include <message_loop_android.h>

Inheritance diagram for fml::MessageLoopAndroid:

Private Member Functions
	~MessageLoopAndroid () override
void	Run () override
void	Terminate () override
void	WakeUp (fml::TimePoint time_point) override

Additional Inherited Members
Public Member Functions inherited from fml::MessageLoopImpl
virtual	~MessageLoopImpl ()
void	PostTask (const fml::closure &task, fml::TimePoint target_time)
void	AddTaskObserver (intptr_t key, const fml::closure &callback)
void	RemoveTaskObserver (intptr_t key)
void	DoRun ()
void	DoTerminate ()
virtual TaskQueueId	GetTaskQueueId () const
Public Member Functions inherited from fml::Wakeable
virtual	~Wakeable ()
Public Member Functions inherited from fml::RefCountedThreadSafe< MessageLoopImpl >
void	Release () const
Public Member Functions inherited from fml::internal::RefCountedThreadSafeBase
void	AddRef () const
bool	HasOneRef () const
void	AssertHasOneRef () const
Static Public Member Functions inherited from fml::MessageLoopImpl
static fml::RefPtr< MessageLoopImpl >	Create ()
Protected Member Functions inherited from fml::MessageLoopImpl
void	RunExpiredTasksNow ()
void	RunSingleExpiredTaskNow ()
	MessageLoopImpl ()
Protected Member Functions inherited from fml::RefCountedThreadSafe< MessageLoopImpl >
	RefCountedThreadSafe ()
	~RefCountedThreadSafe ()
Protected Member Functions inherited from fml::internal::RefCountedThreadSafeBase
	RefCountedThreadSafeBase ()
	~RefCountedThreadSafeBase ()
bool	Release () const
void	Adopt ()

Detailed Description

Android implementation of MessageLoopImpl.

This implemenation wraps usage of Android's looper.

See also

https://developer.android.com/ndk/reference/group/looper

Definition at line 28 of file message_loop_android.h.

Member Function Documentation

Run()

void fml::MessageLoopAndroid::Run ( )

overrideprivatevirtual

Implements fml::MessageLoopImpl.

Definition at line 61 of file message_loop_android.cc.

                             {
  FML_DCHECK(looper_.get() == ALooper_forThread());
 
  running_ = true;
 
  while (running_) {
    int result = ::ALooper_pollOnce(-1,       // infinite timeout
                                    nullptr,  // out fd,
                                    nullptr,  // out events,
                                    nullptr   // out data
    );
    if (result == ALOOPER_POLL_TIMEOUT || result == ALOOPER_POLL_ERROR) {
      // This handles the case where the loop is terminated using ALooper APIs.
      running_ = false;
    }
  }
}

Terminate()

void fml::MessageLoopAndroid::Terminate ( )

overrideprivatevirtual

Implements fml::MessageLoopImpl.

Definition at line 79 of file message_loop_android.cc.

                                   {
  running_ = false;
  ALooper_wake(looper_.get());
}

WakeUp()

void fml::MessageLoopAndroid::WakeUp ( fml::TimePoint  time_point )

overrideprivatevirtual

Implements fml::Wakeable.

Definition at line 84 of file message_loop_android.cc.

                                                       {
  [[maybe_unused]] bool result = TimerRearm(timer_fd_.get(), time_point);
  FML_DCHECK(result);
}

~MessageLoopAndroid()

fml::MessageLoopAndroid::~MessageLoopAndroid ( )

overrideprivate

Definition at line 56 of file message_loop_android.cc.

                                        {
  int remove_result = ::ALooper_removeFd(looper_.get(), timer_fd_.get());
  FML_CHECK(remove_result == 1);
}

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

• fml/platform/android/message_loop_android.h
• fml/platform/android/message_loop_android.cc