1 files changed, 60 insertions, 0 deletions
diff --git a/htl/lockfile.c b/htl/lockfile.c
new file mode 100644
index 0000000000..9069496185
--- /dev/null
+++ b/htl/lockfile.c
@@ -0,0 +1,60 @@
+/* lockfile - Handle locking and unlocking of streams.  Hurd pthread version.
+   Copyright (C) 2000-2018 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If
+   not, see <http://www.gnu.org/licenses/>.  */
+
+#include <cthreads.h>
+#include <pthread.h>		/* Must come before <stdio.h>! */
+#include <stdio.h>
+
+void
+_cthreads_flockfile (FILE *fp)
+{
+  _IO_lock_lock (*fp->_lock);
+}
+
+void
+_cthreads_funlockfile (FILE *fp)
+{
+  _IO_lock_unlock (*fp->_lock);
+}
+
+int
+_cthreads_ftrylockfile (FILE *fp)
+{
+  return __libc_lock_trylock_recursive (*fp->_lock);
+}
+
+#undef	_IO_flockfile
+#undef	_IO_funlockfile
+#undef	_IO_ftrylockfile
+#undef	flockfile
+#undef	funlockfile
+#undef	ftrylockfile
+
+void _IO_flockfile (FILE *)
+     __attribute__ ((alias ("_cthreads_flockfile")));
+void _IO_funlockfile (FILE *)
+     __attribute__ ((alias ("_cthreads_funlockfile")));
+int _IO_ftrylockfile (FILE *)
+     __attribute__ ((alias ("_cthreads_ftrylockfile")));
+
+void flockfile (FILE *)
+     __attribute__ ((alias ("_cthreads_flockfile")));
+void funlockfile (FILE *)
+     __attribute__ ((alias ("_cthreads_funlockfile")));
+int ftrylockfile (FILE *)
+     __attribute__ ((alias ("_cthreads_ftrylockfile")));