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author | vskipin <vskipin@yandex-team.ru> | 2022-02-10 16:46:00 +0300 |
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committer | Daniil Cherednik <dcherednik@yandex-team.ru> | 2022-02-10 16:46:00 +0300 |
commit | 4d8b546b89b5afc08cf3667e176271c7ba935f33 (patch) | |
tree | 1a2c5ffcf89eb53ecd79dbc9bc0a195c27404d0c /contrib/libs/libaio/io_getevents.c | |
parent | 4e4b78bd7b67e2533da4dbb9696374a6d6068e32 (diff) | |
download | ydb-4d8b546b89b5afc08cf3667e176271c7ba935f33.tar.gz |
Restoring authorship annotation for <vskipin@yandex-team.ru>. Commit 2 of 2.
Diffstat (limited to 'contrib/libs/libaio/io_getevents.c')
-rw-r--r-- | contrib/libs/libaio/io_getevents.c | 108 |
1 files changed, 54 insertions, 54 deletions
diff --git a/contrib/libs/libaio/io_getevents.c b/contrib/libs/libaio/io_getevents.c index 5791d1587d3..b606e43283a 100644 --- a/contrib/libs/libaio/io_getevents.c +++ b/contrib/libs/libaio/io_getevents.c @@ -1,56 +1,56 @@ -/* 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 */ -}; - +/* 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(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); -} +{ + 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); +} |