1 files changed, 87 insertions, 0 deletions
diff --git a/linuxthreads/lockfile.c b/linuxthreads/lockfile.c
new file mode 100644
index 0000000000..b0cb2ca006
--- /dev/null
+++ b/linuxthreads/lockfile.c
@@ -0,0 +1,87 @@
+/* lockfile - Handle locking and unlocking of stream.
+   Copyright (C) 1996 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,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <bits/libc-lock.h>
+#include <stdio.h>
+#include <pthread.h>
+
+#ifdef USE_IN_LIBIO
+#include "../libio/libioP.h"
+#endif
+
+void
+__flockfile (FILE *stream)
+{
+#ifdef USE_IN_LIBIO
+  __pthread_mutex_lock (stream->_lock);
+#else
+#endif
+}
+#ifdef USE_IN_LIBIO
+#undef _IO_flockfile
+strong_alias (__flockfile, _IO_flockfile)
+#endif
+weak_alias (__flockfile, flockfile);
+
+
+void
+__funlockfile (FILE *stream)
+{
+#ifdef USE_IN_LIBIO
+  __pthread_mutex_unlock (stream->_lock);
+#else
+#endif
+}
+#ifdef USE_IN_LIBIO
+#undef _IO_funlockfile
+strong_alias (__funlockfile, _IO_funlockfile)
+#endif
+weak_alias (__funlockfile, funlockfile);
+
+
+int
+__ftrylockfile (FILE *stream)
+{
+#ifdef USE_IN_LIBIO
+  return __pthread_mutex_trylock (stream->_lock);
+#else
+#endif
+}
+#ifdef USE_IN_LIBIO
+strong_alias (__ftrylockfile, _IO_ftrylockfile)
+#endif
+weak_alias (__ftrylockfile, ftrylockfile);
+
+
+void
+__fresetlockfiles (void)
+{
+#ifdef USE_IN_LIBIO
+  _IO_FILE *fp;
+  pthread_mutexattr_t attr;
+
+  __pthread_mutexattr_init (&attr);
+  __pthread_mutexattr_setkind_np (&attr, PTHREAD_MUTEX_RECURSIVE_NP);
+
+  for (fp = _IO_list_all; fp != NULL; fp = fp->_chain)
+    __pthread_mutex_init (fp->_lock, &attr);
+
+  __pthread_mutexattr_destroy (&attr);
+#endif
+}