diff options
Diffstat (limited to 'src/io_pgetevents.c')
| -rw-r--r-- | src/io_pgetevents.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/src/io_pgetevents.c b/src/io_pgetevents.c new file mode 100644 index 0000000..e6b0614 --- /dev/null +++ b/src/io_pgetevents.c @@ -0,0 +1,56 @@ +/* + libaio Linux async I/O interface + Copyright 2018 Christoph Hellwig. + + 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 <signal.h> +#include "syscall.h" +#include "aio_ring.h" + +#ifdef __NR_io_pgetevents +io_syscall6(int, __io_pgetevents, io_pgetevents, io_context_t, ctx, long, + min_nr, long, nr, struct io_event *, events, + struct timespec *, timeout, void *, sigmask); + +int io_pgetevents(io_context_t ctx, long min_nr, long nr, + struct io_event *events, struct timespec *timeout, + sigset_t *sigmask) +{ + struct { + unsigned long ss; + unsigned long ss_len; + } data; + + if (aio_ring_is_empty(ctx, timeout)) + return 0; + + data.ss = (unsigned long)sigmask; + data.ss_len = _NSIG / 8; + return __io_pgetevents(ctx, min_nr, nr, events, timeout, &data); +} +#else +int io_pgetevents(io_context_t ctx, long min_nr, long nr, + struct io_event *events, struct timespec *timeout, + sigset_t *sigmask) + +{ + return -ENOSYS; +} +#endif /* __NR_io_pgetevents */ |