2003-08-14 Joel Sherrill <joel@OARcorp.com>

	* Makefile.am: Add fileio to list of interactive tests.
	* src/sync.c: New file.

1 files changed, 69 insertions, 0 deletions

diff --git a/cpukit/libcsupport/src/sync.c b/cpukit/libcsupport/src/sync.c
new file mode 100644
index 0000000000..f91dfd52e7
--- /dev/null
+++ b/cpukit/libcsupport/src/sync.c
@@ -0,0 +1,69 @@
+/*
+ *  sync() - XXX ??? where is this defined
+ *
+ *  This function operates by as follows:
+ *    for all threads
+ *      for all FILE *
+ *         fsync()
+ *         fdatasync()
+ *
+ *  COPYRIGHT (c) 1989-2003.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+/* this is needed to get the fileno() prototype */
+#if defined(__STRICT_ANSI__)
+#undef __STRICT_ANSI__
+#endif
+#include <unistd.h>
+#include <stdio.h>
+
+#include <rtems.h>
+/*
+#define __RTEMS_VIOLATE_KERNEL_VISIBILITY__
+
+#include <rtems/libio_.h>
+#include <rtems/seterr.h>
+*/
+
+/* XXX check standards -- Linux version appears to be void */
+void _fwalk(struct _reent *, void *);
+
+static void sync_wrapper(FILE *f)
+{
+  int fn = fileno(f);
+
+  fsync(fn);
+  fdatasync(fn);
+}
+
+/* iterate over all FILE *'s for this thread */
+static void sync_per_thread(Thread_Control *t)
+{
+   struct reent *current_reent;
+
+   /*
+    *  The sync_wrapper() function will operate on the current thread's
+    *  reent structure so we will temporarily use that.
+    */
+   current_reent = _Thread_Executing->libc_reent;
+   _Thread_Executing->libc_reent = t->libc_reent;
+   _fwalk (t->libc_reent, sync_wrapper);
+   _Thread_Executing->libc_reent = current_reent;
+}
+
+int sync(void)
+{
+  rtems_iterate_over_all_threads(sync_per_thread);
+  return 0;
+}