60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
/*
|
|
* Copyright 2019 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <android/choreographer.h>
|
|
#include <inttypes.h>
|
|
|
|
__BEGIN_DECLS
|
|
|
|
/**
|
|
* Creates an instance of AChoreographer.
|
|
*
|
|
* The key differences between this method and AChoreographer_getInstance are:
|
|
* 1. The returned AChoreographer instance is not a thread-local, and
|
|
* 2. This method does not require an existing ALooper attached to the thread.
|
|
*/
|
|
AChoreographer* AChoreographer_create();
|
|
|
|
/**
|
|
* Destroys a choreographer instance created from AChoreographer_create.
|
|
*/
|
|
void AChoreographer_destroy(AChoreographer* choreographer);
|
|
|
|
/**
|
|
* Returns the underlying file descriptor associated with this choreographer
|
|
* instance.
|
|
*
|
|
* The caller can listen to the file descriptor to respond to any AChoreographer
|
|
* events. One such way is registering the file descriptor to a Looper instance,
|
|
* although this is not a requirement.
|
|
*/
|
|
int AChoreographer_getFd(const AChoreographer* choreographer);
|
|
|
|
/**
|
|
* Provides a callback to handle all pending events emitted by this
|
|
* choreographer instance. Specifically, this delegates to the callbacks
|
|
* previously registered to choreographer.
|
|
*
|
|
* If the associated file descriptor is attached to a Looper instance, then the
|
|
* callback attached to that Looper is expected to handle exceptional Looper
|
|
* events.
|
|
*/
|
|
void AChoreographer_handlePendingEvents(AChoreographer* choreographer, void* data);
|
|
|
|
__END_DECLS
|