Lninux: consolidate epoll_create implementation

Use epoll_create syscall if defined, otherwise use epoll_create1.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/epoll_create.c b/sysdeps/unix/sysv/linux/epoll_create.c
new file mode 100644
index 0000000000..afb1921637
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/epoll_create.c
@@ -0,0 +1,39 @@
+/* Open an epoll file descriptor.  Linux version.
+   Copyright (C) 2011-2022 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <sys/epoll.h>
+#include <sysdep.h>
+
+libc_hidden_proto (epoll_create)
+
+int
+epoll_create (int size)
+{
+#ifdef __NR_epoll_create
+  return INLINE_SYSCALL_CALL (epoll_create);
+#else
+  if (size <= 0)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  return INLINE_SYSCALL_CALL (epoll_create1, 0);
+#endif
+}
+libc_hidden_def (epoll_create)