summaryrefslogtreecommitdiff
path: root/htl/lockfile.c
diff options
context:
space:
mode:
Diffstat (limited to 'htl/lockfile.c')
-rw-r--r--htl/lockfile.c60
1 files changed, 60 insertions, 0 deletions
diff --git a/htl/lockfile.c b/htl/lockfile.c
new file mode 100644
index 0000000000..1d0ab88b13
--- /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 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 <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__ ((weak, alias ("_cthreads_flockfile")));
+void funlockfile (FILE *)
+ __attribute__ ((weak, alias ("_cthreads_funlockfile")));
+int ftrylockfile (FILE *)
+ __attribute__ ((weak, alias ("_cthreads_ftrylockfile")));