74 lines
1.9 KiB
C
74 lines
1.9 KiB
C
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/*
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* Copyright (C) 2009 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef NATIVE_HANDLE_H_
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#define NATIVE_HANDLE_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct
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{
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int version; /* sizeof(native_handle_t) */
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int numFds; /* number of file-descriptors at &data[0] */
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int numInts; /* number of ints at &data[numFds] */
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int data[0]; /* numFds + numInts ints */
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} native_handle_t;
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/* keep the old definition for backward source-compatibility */
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typedef native_handle_t native_handle;
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/*
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* native_handle_close
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*
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* closes the file descriptors contained in this native_handle_t
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*
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* return 0 on success, or a negative error code on failure
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*
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*/
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int native_handle_close(const native_handle_t* h);
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/*
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* native_handle_create
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*
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* creates a native_handle_t and initializes it. must be destroyed with
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* native_handle_delete().
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*
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*/
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native_handle_t* native_handle_create(int numFds, int numInts);
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/*
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* native_handle_delete
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*
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* frees a native_handle_t allocated with native_handle_create().
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* This ONLY frees the memory allocated for the native_handle_t, but doesn't
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* close the file descriptors; which can be achieved with native_handle_close().
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*
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* return 0 on success, or a negative error code on failure
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*
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*/
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int native_handle_delete(native_handle_t* h);
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#ifdef __cplusplus
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}
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#endif
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#endif /* NATIVE_HANDLE_H_ */
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