projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| cbdee279 UD |
1 | /* Suspend until termination of a requests. |
| 2 | Copyright (C) 1997 Free Software Foundation, Inc. | |
| 3 | This file is part of the GNU C Library. | |
| 4 | Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. | |
| 5 | ||
| 6 | The GNU C Library is free software; you can redistribute it and/or | |
| 7 | modify it under the terms of the GNU Library General Public License as | |
| 8 | published by the Free Software Foundation; either version 2 of the | |
| 9 | License, or (at your option) any later version. | |
| 10 | ||
| 11 | The GNU C Library is distributed in the hope that it will be useful, | |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | Library General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU Library General Public | |
| 17 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
| 18 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 19 | Boston, MA 02111-1307, USA. */ | |
| 20 | ||
| 21 | ||
| 22 | /* We use an UGLY hack to prevent gcc from finding us cheating. The | |
| 23 | implementation of aio_suspend and aio_suspend64 are identical and so | |
| 24 | we want to avoid code duplication by using aliases. But gcc sees | |
| 25 | the different parameter lists and prints a warning. We define here | |
| 26 | a function so that aio_suspend64 has no prototype. */ | |
| 27 | #define aio_suspend64 XXX | |
| 28 | #include <aio.h> | |
| 29 | /* And undo the hack. */ | |
| 30 | #undef aio_suspend64 | |
| 31 | ||
| 32 | #include <errno.h> | |
| 33 | ||
| 34 | #include "aio_misc.h" | |
| 35 | ||
| 36 | ||
| 37 | int | |
| 38 | aio_suspend (list, nent, timeout) | |
| 39 | const struct aiocb *const list[]; | |
| 40 | int nent; | |
| 41 | const struct timespec *timeout; | |
| 42 | { | |
| 43 | int cnt; | |
| 44 | ||
| 45 | /* First look whether there is already a terminated request. */ | |
| 46 | for (cnt = 0; cnt < nent; ++cnt) | |
| 47 | if (list[cnt] != NULL && list[cnt]->__error_code != EINPROGRESS) | |
| 48 | return 0; | |
| 49 | ||
| 50 | /* XXX We have to write code which waits. */ | |
| 51 | ||
| 52 | return -1; | |
| 53 | } | |
| 54 | ||
| 55 | weak_alias (aio_suspend, aio_suspend64) |