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Diffstat (limited to 'rt/aio.h')
| -rw-r--r-- | rt/aio.h | 245 |
1 files changed, 0 insertions, 245 deletions
diff --git a/rt/aio.h b/rt/aio.h deleted file mode 100644 index d72ad5d97d..0000000000 --- a/rt/aio.h +++ /dev/null @@ -1,245 +0,0 @@ -/* Copyright (C) 1996-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -/* - * ISO/IEC 9945-1:1996 6.7: Asynchronous Input and Output - */ - -#ifndef _AIO_H -#define _AIO_H 1 - -#include <features.h> -#include <sys/types.h> -#include <bits/types/sigevent_t.h> -#include <bits/sigevent-consts.h> -#include <bits/types/struct_timespec.h> - -__BEGIN_DECLS - -/* Asynchronous I/O control block. */ -struct aiocb -{ - int aio_fildes; /* File desriptor. */ - int aio_lio_opcode; /* Operation to be performed. */ - int aio_reqprio; /* Request priority offset. */ - volatile void *aio_buf; /* Location of buffer. */ - size_t aio_nbytes; /* Length of transfer. */ - struct sigevent aio_sigevent; /* Signal number and value. */ - - /* Internal members. */ - struct aiocb *__next_prio; - int __abs_prio; - int __policy; - int __error_code; - __ssize_t __return_value; - -#ifndef __USE_FILE_OFFSET64 - __off_t aio_offset; /* File offset. */ - char __pad[sizeof (__off64_t) - sizeof (__off_t)]; -#else - __off64_t aio_offset; /* File offset. */ -#endif - char __glibc_reserved[32]; -}; - -/* The same for the 64bit offsets. Please note that the members aio_fildes - to __return_value have to be the same in aiocb and aiocb64. */ -#ifdef __USE_LARGEFILE64 -struct aiocb64 -{ - int aio_fildes; /* File desriptor. */ - int aio_lio_opcode; /* Operation to be performed. */ - int aio_reqprio; /* Request priority offset. */ - volatile void *aio_buf; /* Location of buffer. */ - size_t aio_nbytes; /* Length of transfer. */ - struct sigevent aio_sigevent; /* Signal number and value. */ - - /* Internal members. */ - struct aiocb *__next_prio; - int __abs_prio; - int __policy; - int __error_code; - __ssize_t __return_value; - - __off64_t aio_offset; /* File offset. */ - char __glibc_reserved[32]; -}; -#endif - - -#ifdef __USE_GNU -/* To customize the implementation one can use the following struct. - This implementation follows the one in Irix. */ -struct aioinit - { - int aio_threads; /* Maximal number of threads. */ - int aio_num; /* Number of expected simultanious requests. */ - int aio_locks; /* Not used. */ - int aio_usedba; /* Not used. */ - int aio_debug; /* Not used. */ - int aio_numusers; /* Not used. */ - int aio_idle_time; /* Number of seconds before idle thread - terminates. */ - int aio_reserved; - }; -#endif - - -/* Return values of cancelation function. */ -enum -{ - AIO_CANCELED, -#define AIO_CANCELED AIO_CANCELED - AIO_NOTCANCELED, -#define AIO_NOTCANCELED AIO_NOTCANCELED - AIO_ALLDONE -#define AIO_ALLDONE AIO_ALLDONE -}; - - -/* Operation codes for `aio_lio_opcode'. */ -enum -{ - LIO_READ, -#define LIO_READ LIO_READ - LIO_WRITE, -#define LIO_WRITE LIO_WRITE - LIO_NOP -#define LIO_NOP LIO_NOP -}; - - -/* Synchronization options for `lio_listio' function. */ -enum -{ - LIO_WAIT, -#define LIO_WAIT LIO_WAIT - LIO_NOWAIT -#define LIO_NOWAIT LIO_NOWAIT -}; - - -/* Allow user to specify optimization. */ -#ifdef __USE_GNU -extern void aio_init (const struct aioinit *__init) __THROW __nonnull ((1)); -#endif - - -#ifndef __USE_FILE_OFFSET64 -/* Enqueue read request for given number of bytes and the given priority. */ -extern int aio_read (struct aiocb *__aiocbp) __THROW __nonnull ((1)); -/* Enqueue write request for given number of bytes and the given priority. */ -extern int aio_write (struct aiocb *__aiocbp) __THROW __nonnull ((1)); - -/* Initiate list of I/O requests. */ -extern int lio_listio (int __mode, - struct aiocb *const __list[__restrict_arr], - int __nent, struct sigevent *__restrict __sig) - __THROW __nonnull ((2)); - -/* Retrieve error status associated with AIOCBP. */ -extern int aio_error (const struct aiocb *__aiocbp) __THROW __nonnull ((1)); -/* Return status associated with AIOCBP. */ -extern __ssize_t aio_return (struct aiocb *__aiocbp) __THROW __nonnull ((1)); - -/* Try to cancel asynchronous I/O requests outstanding against file - descriptor FILDES. */ -extern int aio_cancel (int __fildes, struct aiocb *__aiocbp) __THROW; - -/* Suspend calling thread until at least one of the asynchronous I/O - operations referenced by LIST has completed. - - This function is a cancellation point and therefore not marked with - __THROW. */ -extern int aio_suspend (const struct aiocb *const __list[], int __nent, - const struct timespec *__restrict __timeout) - __nonnull ((1)); - -/* Force all operations associated with file desriptor described by - `aio_fildes' member of AIOCBP. */ -extern int aio_fsync (int __operation, struct aiocb *__aiocbp) - __THROW __nonnull ((2)); -#else -# ifdef __REDIRECT_NTH -extern int __REDIRECT_NTH (aio_read, (struct aiocb *__aiocbp), aio_read64) - __nonnull ((1)); -extern int __REDIRECT_NTH (aio_write, (struct aiocb *__aiocbp), aio_write64) - __nonnull ((1)); - -extern int __REDIRECT_NTH (lio_listio, - (int __mode, - struct aiocb *const __list[__restrict_arr], - int __nent, struct sigevent *__restrict __sig), - lio_listio64) __nonnull ((2)); - -extern int __REDIRECT_NTH (aio_error, (const struct aiocb *__aiocbp), - aio_error64) __nonnull ((1)); -extern __ssize_t __REDIRECT_NTH (aio_return, (struct aiocb *__aiocbp), - aio_return64) __nonnull ((1)); - -extern int __REDIRECT_NTH (aio_cancel, - (int __fildes, struct aiocb *__aiocbp), - aio_cancel64); - -extern int __REDIRECT_NTH (aio_suspend, - (const struct aiocb *const __list[], int __nent, - const struct timespec *__restrict __timeout), - aio_suspend64) __nonnull ((1)); - -extern int __REDIRECT_NTH (aio_fsync, - (int __operation, struct aiocb *__aiocbp), - aio_fsync64) __nonnull ((2)); - -# else -# define aio_read aio_read64 -# define aio_write aio_write64 -# define lio_listio lio_listio64 -# define aio_error aio_error64 -# define aio_return aio_return64 -# define aio_cancel aio_cancel64 -# define aio_suspend aio_suspend64 -# define aio_fsync aio_fsync64 -# endif -#endif - -#ifdef __USE_LARGEFILE64 -extern int aio_read64 (struct aiocb64 *__aiocbp) __THROW __nonnull ((1)); -extern int aio_write64 (struct aiocb64 *__aiocbp) __THROW __nonnull ((1)); - -extern int lio_listio64 (int __mode, - struct aiocb64 *const __list[__restrict_arr], - int __nent, struct sigevent *__restrict __sig) - __THROW __nonnull ((2)); - -extern int aio_error64 (const struct aiocb64 *__aiocbp) - __THROW __nonnull ((1)); -extern __ssize_t aio_return64 (struct aiocb64 *__aiocbp) - __THROW __nonnull ((1)); - -extern int aio_cancel64 (int __fildes, struct aiocb64 *__aiocbp) __THROW; - -extern int aio_suspend64 (const struct aiocb64 *const __list[], int __nent, - const struct timespec *__restrict __timeout) - __THROW __nonnull ((1)); - -extern int aio_fsync64 (int __operation, struct aiocb64 *__aiocbp) - __THROW __nonnull ((2)); -#endif - -__END_DECLS - -#endif /* aio.h */ |