/usr/include/android-22/cutils/native_handle.h is in android-headers-22 23-0ubuntu4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (C) 2009 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.
*/
#ifndef NATIVE_HANDLE_H_
#define NATIVE_HANDLE_H_
#ifdef __cplusplus
extern "C" {
#endif
typedef struct native_handle
{
int version; /* sizeof(native_handle_t) */
int numFds; /* number of file-descriptors at &data[0] */
int numInts; /* number of ints at &data[numFds] */
int data[0]; /* numFds + numInts ints */
} native_handle_t;
/*
* native_handle_close
*
* closes the file descriptors contained in this native_handle_t
*
* return 0 on success, or a negative error code on failure
*
*/
int native_handle_close(const native_handle_t* h);
/*
* native_handle_create
*
* creates a native_handle_t and initializes it. must be destroyed with
* native_handle_delete().
*
*/
native_handle_t* native_handle_create(int numFds, int numInts);
/*
* native_handle_delete
*
* frees a native_handle_t allocated with native_handle_create().
* This ONLY frees the memory allocated for the native_handle_t, but doesn't
* close the file descriptors; which can be achieved with native_handle_close().
*
* return 0 on success, or a negative error code on failure
*
*/
int native_handle_delete(native_handle_t* h);
#ifdef __cplusplus
}
#endif
#endif /* NATIVE_HANDLE_H_ */
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