Merge branch 'aio-poll'

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 */