diff options
Diffstat (limited to 'usr/src/lib/librt/common/aio.c')
-rw-r--r-- | usr/src/lib/librt/common/aio.c | 336 |
1 files changed, 0 insertions, 336 deletions
diff --git a/usr/src/lib/librt/common/aio.c b/usr/src/lib/librt/common/aio.c deleted file mode 100644 index aed292ce56..0000000000 --- a/usr/src/lib/librt/common/aio.c +++ /dev/null @@ -1,336 +0,0 @@ -/* - * CDDL HEADER START - * - * The contents of this file are subject to the terms of the - * Common Development and Distribution License (the "License"). - * You may not use this file except in compliance with the License. - * - * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE - * or http://www.opensolaris.org/os/licensing. - * See the License for the specific language governing permissions - * and limitations under the License. - * - * When distributing Covered Code, include this CDDL HEADER in each - * file and include the License file at usr/src/OPENSOLARIS.LICENSE. - * If applicable, add the following below this CDDL HEADER, with the - * fields enclosed by brackets "[]" replaced with your own identifying - * information: Portions Copyright [yyyy] [name of copyright owner] - * - * CDDL HEADER END - */ - -/* - * Copyright 2006 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. - */ - -/* - * The POSIX async. I/O functionality is - * implemented in libaio/common/posix_aio.c - */ - -#pragma ident "%Z%%M% %I% %E% SMI" - -#pragma weak close = __posix_aio_close - -#include "c_synonyms.h" -#include <aio.h> -#include <sys/types.h> -#include <errno.h> -#include <stdlib.h> -#include "pos4.h" -#include "sigev_thread.h" - -extern int _libaio_close(int fd); - -/* - * There is but one spawner for all aio operations. - */ -thread_communication_data_t *sigev_aio_tcd = NULL; - -mutex_t sigev_aio_lock = DEFAULTMUTEX; -cond_t sigev_aio_cv = DEFAULTCV; -int sigev_aio_busy = 0; - -static int -__sigev_thread_init(struct sigevent *sigevp) -{ - thread_communication_data_t *tcdp; - int port; - int rc = 0; - - (void) mutex_lock(&sigev_aio_lock); - while (sigev_aio_busy) - (void) cond_wait(&sigev_aio_cv, &sigev_aio_lock); - if ((tcdp = sigev_aio_tcd) != NULL) - port = tcdp->tcd_port; - else { - sigev_aio_busy = 1; - (void) mutex_unlock(&sigev_aio_lock); - - tcdp = setup_sigev_handler(sigevp, AIO); - if (tcdp == NULL) { - port = -1; - rc = -1; - } else if (launch_spawner(tcdp) != 0) { - free_sigev_handler(tcdp); - tcdp = NULL; - port = -1; - rc = -1; - } else { - port = tcdp->tcd_port; - } - - (void) mutex_lock(&sigev_aio_lock); - sigev_aio_tcd = tcdp; - sigev_aio_busy = 0; - (void) cond_broadcast(&sigev_aio_cv); - } - (void) mutex_unlock(&sigev_aio_lock); - sigevp->sigev_signo = port; - return (rc); -} - -static int -__posix_sigev_thread(aiocb_t *aiocbp) -{ - struct sigevent *sigevp; - - if (aiocbp != NULL) { - sigevp = &aiocbp->aio_sigevent; - if (sigevp->sigev_notify == SIGEV_THREAD && - sigevp->sigev_notify_function != NULL) - return (__sigev_thread_init(sigevp)); - } - return (0); -} - -#if !defined(_LP64) -static int -__posix_sigev_thread64(aiocb64_t *aiocbp) -{ - struct sigevent *sigevp; - - if (aiocbp != NULL) { - sigevp = &aiocbp->aio_sigevent; - if (sigevp->sigev_notify == SIGEV_THREAD && - sigevp->sigev_notify_function != NULL) - return (__sigev_thread_init(sigevp)); - } - return (0); -} -#endif - -int -__posix_aio_close(int fd) -{ - return (_libaio_close(fd)); -} - -int -aio_cancel(int fildes, aiocb_t *aiocbp) -{ - return (__aio_cancel(fildes, aiocbp)); -} - -#if !defined(_LP64) - -int -aio_cancel64(int fildes, aiocb64_t *aiocbp) -{ - return (__aio_cancel64(fildes, aiocbp)); -} - -#endif - -int -aio_error(const aiocb_t *aiocbp) -{ - return (__aio_error(aiocbp)); -} - -#if !defined(_LP64) - -int -aio_error64(const aiocb64_t *aiocbp) -{ - return (__aio_error64(aiocbp)); -} - -#endif - -int -aio_fsync(int op, aiocb_t *aiocbp) -{ - int rc; - - if ((rc = __posix_sigev_thread(aiocbp)) == 0) - rc = __aio_fsync(op, aiocbp); - return (rc); - -} - -#if !defined(_LP64) - -int -aio_fsync64(int op, aiocb64_t *aiocbp) -{ - int rc; - - if ((rc = __posix_sigev_thread64(aiocbp)) == 0) - rc = __aio_fsync64(op, aiocbp); - return (rc); -} - -#endif - -int -aio_read(aiocb_t *aiocbp) -{ - int rc; - - if ((rc = __posix_sigev_thread(aiocbp)) == 0) - rc = __aio_read(aiocbp); - return (rc); -} - -#if !defined(_LP64) - -int -aio_read64(aiocb64_t *aiocbp) -{ - int rc; - - if ((rc = __posix_sigev_thread64(aiocbp)) == 0) - rc = __aio_read64(aiocbp); - return (rc); -} - -#endif - -ssize_t -aio_return(aiocb_t *aiocbp) -{ - return (__aio_return(aiocbp)); -} - -#if !defined(_LP64) - -ssize_t -aio_return64(aiocb64_t *aiocbp) -{ - return (__aio_return64(aiocbp)); -} - -#endif - -int -aio_suspend(const aiocb_t * const list[], int nent, - const timespec_t *timeout) -{ - return (__aio_suspend((void **)list, nent, timeout, 0)); -} - -#if !defined(_LP64) - -int -aio_suspend64(const aiocb64_t * const list[], int nent, - const timespec_t *timeout) -{ - return (__aio_suspend((void **)list, nent, timeout, 1)); -} - -#endif - -int -aio_write(aiocb_t *aiocbp) -{ - int rc; - - if ((rc = __posix_sigev_thread(aiocbp)) == 0) - rc = __aio_write(aiocbp); - return (rc); -} - -#if !defined(_LP64) - -int -aio_write64(aiocb64_t *aiocbp) -{ - int rc; - - if ((rc = __posix_sigev_thread64(aiocbp)) == 0) - rc = __aio_write64(aiocbp); - return (rc); -} - -#endif - -int -lio_listio(int mode, - aiocb_t *_RESTRICT_KYWD const *_RESTRICT_KYWD list, - int nent, struct sigevent *_RESTRICT_KYWD sigevp) -{ - int i; - aiocb_t *aiocbp; - - for (i = 0; i < nent; i++) { - if ((aiocbp = list[i]) != NULL && - aiocbp->aio_sigevent.sigev_notify == SIGEV_THREAD && - __posix_sigev_thread(aiocbp) != 0) - return (-1); - } - if (sigevp != NULL && - sigevp->sigev_notify == SIGEV_THREAD && - sigevp->sigev_notify_function != NULL && - __sigev_thread_init(sigevp) != 0) - return (-1); - - return (__lio_listio(mode, list, nent, sigevp)); -} - -#if !defined(_LP64) - -int -lio_listio64(int mode, - aiocb64_t *_RESTRICT_KYWD const *_RESTRICT_KYWD list, - int nent, struct sigevent *_RESTRICT_KYWD sigevp) -{ - int i; - aiocb64_t *aiocbp; - - for (i = 0; i < nent; i++) { - if ((aiocbp = list[i]) != NULL && - aiocbp->aio_sigevent.sigev_notify == SIGEV_THREAD && - __posix_sigev_thread64(aiocbp) != 0) - return (-1); - } - if (sigevp != NULL && - sigevp->sigev_notify == SIGEV_THREAD && - sigevp->sigev_notify_function != NULL && - __sigev_thread_init(sigevp) != 0) - return (-1); - - return (__lio_listio64(mode, list, nent, sigevp)); -} - -#endif - - -int -aio_waitn(aiocb_t *list[], uint_t nent, uint_t *nwait, - const timespec_t *timeout) -{ - return (__aio_waitn((void **)list, nent, nwait, timeout)); -} - -#if !defined(_LP64) - -int -aio_waitn64(aiocb64_t *list[], uint_t nent, uint_t *nwait, - const timespec_t *timeout) -{ - return (__aio_waitn((void **)list, nent, nwait, timeout)); -} - -#endif |