rewind: Add _unlocked variation. Make rewind() actually take lock before touching...

[pdclib] / functions / stdio / rewind.c

diff --git a/functions/stdio/rewind.c b/functions/stdio/rewind.c
index 543e2849a740df13d89c35449e22667b6eaedd2d..0a19155b5820428acd62c40996d8aa8b8ceaf35c 100644 (file)
--- a/functions/stdio/rewind.c
+++ b/functions/stdio/rewind.c
@@ -1,6 +1,6 @@
 /* $Id$ */
 
-/* frewind( FILE * )
+/* rewind( FILE * )
 
    This file is part of the Public Domain C Library (PDCLib).
    Permission is granted to use, modify, and / or redistribute at will.
@@ -10,10 +10,17 @@
 
 #ifndef REGTEST
 
+void rewind_unlocked( struct _PDCLIB_file_t * stream )
+{
+    stream->status &= ~ _PDCLIB_ERRORFLAG;
+    fseek_unlocked( stream, 0L, SEEK_SET );
+}
+
 void rewind( struct _PDCLIB_file_t * stream )
 {
-    /* TODO: Implement. */
-    return;
+    flockfile(stream);
+    rewind_unlocked(stream);
+    funlockfile(stream);
 }
 
 #endif
@@ -23,7 +30,7 @@ void rewind( struct _PDCLIB_file_t * stream )
 
 int main( void )
 {
-    TESTCASE( NO_TESTDRIVER );
+    /* Testing covered by ftell.c */
     return TEST_RESULTS;
 }