1 files changed, 35 insertions, 0 deletions
diff --git a/sysdeps/htl/ftrylockfile.c b/sysdeps/htl/ftrylockfile.c
new file mode 100644
index 0000000000..7de42c7b3d
--- /dev/null
+++ b/sysdeps/htl/ftrylockfile.c
@@ -0,0 +1,35 @@
+/* Try locking I/O stream.  Hurd version
+   Copyright (C) 2002-2018 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdio-lock.h>
+
+
+int
+__ftrylockfile (FILE *stream)
+{
+#ifdef SHARED
+  return __libc_ptf_call (_IO_ftrylockfile, (stream), 0);
+#else
+  return 0;
+#endif
+}
+weak_alias (__ftrylockfile, _IO_ftrylockfile)
+weak_alias (__ftrylockfile, ftrylockfile)