diff options
Diffstat (limited to 'tools/libaio/src/io_getevents.c')
-rw-r--r-- | tools/libaio/src/io_getevents.c | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/tools/libaio/src/io_getevents.c b/tools/libaio/src/io_getevents.c deleted file mode 100644 index 5a0517402d..0000000000 --- a/tools/libaio/src/io_getevents.c +++ /dev/null @@ -1,57 +0,0 @@ -/* io_getevents.c - libaio Linux async I/O interface - Copyright 2002 Red Hat, Inc. - - This 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 of the License, or (at your option) any later version. - - This 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 this library; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#include <libaio.h> -#include <errno.h> -#include <stdlib.h> -#include <time.h> -#include "syscall.h" - -io_syscall5(int, __io_getevents_0_4, io_getevents, io_context_t, ctx, long, min_nr, long, nr, struct io_event *, events, struct timespec *, timeout) - -#define AIO_RING_MAGIC 0xa10a10a1 - -/* Ben will hate me for this */ -struct aio_ring { - unsigned id; /* kernel internal index number */ - unsigned nr; /* number of io_events */ - unsigned head; - unsigned tail; - - unsigned magic; - unsigned compat_features; - unsigned incompat_features; - unsigned header_length; /* size of aio_ring */ -}; - -int io_getevents_0_4(io_context_t ctx, long min_nr, long nr, struct io_event * events, struct timespec * timeout) -{ - struct aio_ring *ring; - ring = (struct aio_ring*)ctx; - if (ring==NULL || ring->magic != AIO_RING_MAGIC) - goto do_syscall; - if (timeout!=NULL && timeout->tv_sec == 0 && timeout->tv_nsec == 0) { - if (ring->head == ring->tail) - return 0; - } - -do_syscall: - return __io_getevents_0_4(ctx, min_nr, nr, events, timeout); -} - -DEFSYMVER(io_getevents_0_4, io_getevents, 0.4) |