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Diffstat (limited to 'rt/aio_misc.h')
-rw-r--r-- | rt/aio_misc.h | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/rt/aio_misc.h b/rt/aio_misc.h deleted file mode 100644 index 372b555..0000000 --- a/rt/aio_misc.h +++ /dev/null @@ -1,127 +0,0 @@ -/* Copyright (C) 1997, 1999, 2000 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 Library General Public License as - published by the Free Software Foundation; either version 2 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 - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#ifndef _AIO_MISC_H -#define _AIO_MISC_H 1 - -#include <aio.h> -#include <pthread.h> - - -/* Extend the operation enum. */ -enum -{ - LIO_DSYNC = LIO_READ + 1, - LIO_SYNC, - LIO_READ64 = LIO_READ | 128, - LIO_WRITE64 = LIO_WRITE | 128 -}; - - -/* Union of the two request types. */ -typedef union - { - struct aiocb aiocb; - struct aiocb64 aiocb64; - } aiocb_union; - - -/* Used to synchronize. */ -struct waitlist - { - struct waitlist *next; - - pthread_cond_t *cond; - volatile int *counterp; - /* The next field is used in asynchronous `lio_listio' operations. */ - struct sigevent *sigevp; - /* XXX See requestlist, it's used to work around the broken signal - handling in Linux. */ - pid_t caller_pid; - }; - - -/* Status of a request. */ -enum -{ - no, - queued, - yes, - allocated, - done -}; - - -/* Used to queue requests.. */ -struct requestlist - { - int running; - - struct requestlist *last_fd; - struct requestlist *next_fd; - struct requestlist *next_prio; - struct requestlist *next_run; - - /* Pointer to the actual data. */ - aiocb_union *aiocbp; - - /* PID of the initiator thread. - XXX This is only necessary for the broken signal handling on Linux. */ - pid_t caller_pid; - - /* List of waiting processes. */ - struct waitlist *waiting; - }; - - -/* Lock for global I/O list of requests. */ -extern pthread_mutex_t __aio_requests_mutex; - - -/* Enqueue request. */ -extern struct requestlist *__aio_enqueue_request (aiocb_union *aiocbp, - int operation) - internal_function; - -/* Find request entry for given AIO control block. */ -extern struct requestlist *__aio_find_req (aiocb_union *elem) - internal_function; - -/* Find request entry for given file descriptor. */ -extern struct requestlist *__aio_find_req_fd (int fildes) internal_function; - -/* Remove request from the list. */ -extern void __aio_remove_request (struct requestlist *last, - struct requestlist *req, int all) - internal_function; - -/* Release the entry for the request. */ -extern void __aio_free_request (struct requestlist *req) internal_function; - -/* Notify initiator of request and tell this everybody listening. */ -extern void __aio_notify (struct requestlist *req) internal_function; - -/* Notify initiator of request. */ -extern int __aio_notify_only (struct sigevent *sigev, pid_t caller_pid) - internal_function; - -/* Send the signal. */ -extern int __aio_sigqueue (int sig, const union sigval val, pid_t caller_pid) - internal_function; - -#endif /* aio_misc.h */ |