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#pragma once
/*
* Copyright (C) 2016 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.
*/
struct private_handle_t;
/**
* Map the memory associated with hnd->fd or, if already mapped, increment
* its reference count.
*/
void* reference_region(
const char* op, const private_handle_t* hnd);
/**
* Decrement the reference count associated with hnd->fd, unmapping its
* memory iff the reference count reaches 0.
*/
int unreference_region(const char* op, const private_handle_t* hnd);
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