52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
/*
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* Copyright (C) 2016 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 _ASYNCIO_H
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#define _ASYNCIO_H
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#include <linux/aio_abi.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <time.h>
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#include <unistd.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* Provides kernel aio operations.
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*/
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int io_setup(unsigned nr, aio_context_t* ctxp);
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int io_destroy(aio_context_t ctx);
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int io_submit(aio_context_t ctx, long nr, struct iocb** iocbpp);
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int io_getevents(aio_context_t ctx, long min_nr, long max_nr, struct io_event* events,
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struct timespec* timeout);
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int io_cancel(aio_context_t ctx, struct iocb*, struct io_event* result);
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void io_prep_pread(struct iocb* iocb, int fd, void* buf, size_t count, long long offset);
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void io_prep_pwrite(struct iocb* iocb, int fd, void* buf, size_t count, long long offset);
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void io_prep(struct iocb* iocb, int fd, const void* buf, uint64_t count, int64_t offset, bool read);
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#ifdef __cplusplus
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};
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#endif
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#endif // ASYNCIO_H
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