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diff --git a/doc/html/TechNotes/MoveDStruct.html b/doc/html/TechNotes/MoveDStruct.html deleted file mode 100644 index 4576bd2..0000000 --- a/doc/html/TechNotes/MoveDStruct.html +++ /dev/null @@ -1,66 +0,0 @@ -<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"> -<html> - <head> - <title>Relocating a File Data Structure</title> - </head> - - <body> - <h1>Relocating a File Data Structure</h1> - - <p>Since file data structures can be cached in memory by the H5AC - package it becomes problematic to move such a data structure in - the file. One cannot just copy a portion of the file from one - location to another because: - - <ol> - <li>the file might not contain the latest information, and</li> - <li>the H5AC package might not realize that the object's - address has changed and attempt to write the object to disk - at the old address.</li> - </ol> - - <p>Here's a correct method to move data from one location to - another. The example code assumes that one is moving a B-link - tree node from <code>old_addr</code> to <code>new_addr</code>. - - <ol> - <li>Make sure the disk is up-to-date with respect to the - cache. There is no need to remove the item from the cache, - hence the final argument to <code>H5AC_flush</code> is - <code>FALSE</code>. - <br><br> - <code> - H5AC_flush (f, H5AC_BT, old_addr, FALSE);<br> - </code> - <br> - </li> - - <li>Read the data from the old address and write it to the new - address. - <br><br> - <code> - H5F_block_read (f, old_addr, size, buf);<br> - H5F_block_write (f, new_addr, size, buf);<br> - </code> - <br> - </li> - - <li>Notify the cache that the address of the object changed. - <br><br> - <code> - H5AC_rename (f, H5AC_BT, old_addr, new_addr);<br> - </code> - <br> - </li> - </ol> - - - - <hr> - <address><a href="mailto:robb@maya.nuance.com">Robb Matzke</a></address> -<!-- Created: Mon Jul 14 15:09:06 EST 1997 --> -<!-- hhmts start --> -Last modified: Mon Jul 14 15:38:29 EST -<!-- hhmts end --> - </body> -</html> |