[svn-r13721] Description:

    Add "fail if unknown" and "mark if unknown" flags to object header messages.
This gives the library a clean way to tell older libraries that a message should
not be just ignored if it's unknown, but that other actions should occur.

Tested on:
    Mac OS X/32 10.4.9 (amazon)
    FreeBSD/32 6.2 (duty)
    FreeBSD/64 6.2 (liberty)
    Linux/32 2.6 (chicago)
    Linux/64 2.6 (chicago2)

1 files changed, 89 insertions, 0 deletions

diff --git a/src/H5Ounknown.c b/src/H5Ounknown.c
new file mode 100644
index 0000000..cd805a9
--- /dev/null
+++ b/src/H5Ounknown.c
@@ -0,0 +1,89 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by The HDF Group.                                               *
+ * Copyright by the Board of Trustees of the University of Illinois.         *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * This file is part of HDF5.  The full HDF5 copyright notice, including     *
+ * terms governing use, modification, and redistribution, is contained in    *
+ * the files COPYING and Copyright.html.  COPYING can be found at the root   *
+ * of the source code distribution tree; Copyright.html can be found at the  *
+ * root level of an installed copy of the electronic HDF5 document set and   *
+ * is linked from the top-level documents page.  It can also be found at     *
+ * http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have          *
+ * access to either file, you may request a copy from help@hdfgroup.org.     *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*-------------------------------------------------------------------------
+ *
+ * Created:             H5Ounknown.c
+ *                      Apr 19 2007
+ *                      Quincey Koziol <koziol@hdfgroup.org>
+ *
+ * Purpose:             Handle unknown message classes in a minimal way.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+#define H5O_PACKAGE		/*suppress error about including H5Opkg	  */
+
+#include "H5private.h"		/* Generic Functions			*/
+#include "H5Eprivate.h"		/* Error handling		  	*/
+#include "H5FLprivate.h"	/* Free lists                           */
+#include "H5Opkg.h"             /* Object headers			*/
+
+
+/* PRIVATE PROTOTYPES */
+static herr_t H5O_unknown_free(void *_mesg);
+
+/* This message derives from H5O message class */
+const H5O_msg_class_t H5O_MSG_UNKNOWN[1] = {{
+    H5O_UNKNOWN_ID,           	/*message id number             */
+    "unknown",                	/*message name for debugging    */
+    0,				/*native message size           */
+    FALSE,			/* messages are sharable?       */
+    NULL,			/*decode message                */
+    NULL,			/*encode message                */
+    NULL,			/*copy the native value         */
+    NULL,			/*size of symbol table entry    */
+    NULL,                   	/*default reset method          */
+    H5O_unknown_free,	        /* free method			*/
+    NULL,			/* file delete method		*/
+    NULL,			/* link method			*/
+    NULL, 			/*set share method		*/
+    NULL,		    	/*can share method		*/
+    NULL,			/* pre copy native value to file */
+    NULL,			/* copy native value to file    */
+    NULL,			/* post copy native value to file */
+    NULL,			/* get creation index		*/
+    NULL,			/* set creation index		*/
+    NULL			/*debug the message             */
+}};
+
+/* Declare a free list to manage the H5O_unknown_t struct */
+H5FL_DEFINE_STATIC(H5O_unknown_t);
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5O_unknown_free
+ *
+ * Purpose:	Free's the message
+ *
+ * Return:	Non-negative on success/Negative on failure
+ *
+ * Programmer:	Quincey Koziol
+ *              Tuesday, May 1, 2007
+ *
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5O_unknown_free(void *mesg)
+{
+    FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5O_unknown_free)
+
+    HDassert(mesg);
+
+    H5FL_FREE(H5O_unknown_t, mesg);
+
+    FUNC_LEAVE_NOAPI(SUCCEED)
+} /* end H5O_unknown_free() */
+