Initial import of the CDE 2.1.30 sources from the Open Group.

cde/lib/tt/mini_isam/issync.c

@@ -0,0 +1,112 @@
+/*%%  (c) Copyright 1993, 1994 Hewlett-Packard Company			 */
+/*%%  (c) Copyright 1993, 1994 International Business Machines Corp.	 */
+/*%%  (c) Copyright 1993, 1994 Sun Microsystems, Inc.			 */
+/*%%  (c) Copyright 1993, 1994 Novell, Inc. 				 */
+/*%%  $XConsortium: issync.c /main/3 1995/10/23 11:45:20 rswiston $ 			 				 */
+#ifndef lint
+static char sccsid[] = "@(#)issync.c 1.7 89/07/17 Copyr 1988 Sun Micro";
+#endif
+/*
+ * Copyright (c) 1988 by Sun Microsystems, Inc.
+ */
+
+/*
+ * issync.c
+ *
+ * Description:
+ *	Sync all kernel buffers to the disk.
+ *
+ * Note: issync() flushes changed kernel buffers that are local to
+ * 	the application that issued the call.
+ * 
+ * See sync(2) UNIX manual for what actually happens if sync() is called.
+ */
+
+#include "isam_impl.h"
+#include <sys/file.h>
+#include <sys/time.h>
+
+/*
+ * int  issync()
+ */
+
+int 
+issync()
+{
+    return iscntl(ALLISFD, ISCNTL_FSYNC);
+}
+
+/*
+ * int  isfsync(fd)
+ */
+
+int 
+isfsync(isfd)
+    int		isfd;
+{
+    return iscntl(isfd, ISCNTL_FSYNC);
+}
+
+
+_issync()
+{
+    int		i;
+
+    for (i = 0; i < MAXISFD; i++)
+	(void)_isfsync(i);
+
+    return (ISOK);
+}
+
+_isfsync(isfd)
+    int		isfd;
+{
+    register Fab	*fab;
+    Fcb                 *fcb;
+    int			ret;
+
+    /*
+     * Get File Access Block.
+     */
+    if ((fab = _isfd_find(isfd)) == NULL) {
+	_setiserrno2(ENOTOPEN, '9', '0');
+	return (ISERROR);
+    }
+
+    /*
+     * Check that the open mode was ISINPUT, or ISINOUT.
+     */
+    if (fab->openmode != OM_INPUT && fab->openmode != OM_INOUT) {
+	_setiserrno2(ENOTOPEN, '9', '0');
+	return (ISERROR);
+    }
+
+    _isam_entryhook();
+
+    /*
+     * Get FCB corresponding to the isfhandle handle.
+     */
+    if ((fcb = _openfcb(&fab->isfhandle, &fab->errcode)) == NULL) {
+	_isam_exithook();
+	ret = ISERROR;
+    }
+    else {
+
+        if (fcb->datfd != -1)
+	    (void)fsync(fcb->datfd);
+
+        if (fcb->indfd != -1)
+	    (void)fsync(fcb->indfd);
+
+        if (fcb->varfd != -1)
+	    (void)fsync(fcb->varfd);
+
+        _amseterrcode(&fab->errcode, ISOK);
+        _isam_exithook();
+        ret = ISOK;
+    }
+
+    _seterr_errcode(&fab->errcode);
+
+    return (ret);			     /* Successful write */
+}