diff options
Diffstat (limited to 'rtkaio/tst-aiod.h')
-rw-r--r-- | rtkaio/tst-aiod.h | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/rtkaio/tst-aiod.h b/rtkaio/tst-aiod.h deleted file mode 100644 index 57f0e48ce5..0000000000 --- a/rtkaio/tst-aiod.h +++ /dev/null @@ -1,52 +0,0 @@ -/* Tests for AIO in librt. - Copyright (C) 1998, 2000, 2002, 2006 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. - - 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, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <fcntl.h> -#include <sys/mman.h> -#include <unistd.h> - -static int -set_o_direct (int fd) -{ - int ret = -1; -#ifdef O_DIRECT - if (fcntl (fd, F_SETFL, fcntl (fd, F_GETFL) | O_DIRECT) >= 0) - { - int pgsz = sysconf (_SC_PAGESIZE); - char *buf = mmap (NULL, 16 * pgsz, PROT_READ | PROT_WRITE, - MAP_PRIVATE | MAP_ANON, -1, 0); - if (buf != MAP_FAILED) - { - memset (buf, 0, 16 * pgsz); - for (int sz = 256; sz <= 16 * pgsz; sz *= 2) - if (write (fd, buf, sz) > 0) - { - ret = sz; - break; - } - ftruncate64 (fd, 0); - munmap (buf, 16 * pgsz); - } - if (ret < 0) - fcntl (fd, F_SETFL, fcntl (fd, F_GETFL) & ~O_DIRECT); - } -#endif - return ret; -} |