<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <HEAD> <meta http-equiv="Content-type" content="text/html;charset=UTF-8"> <TITLE>Notes</title> </head> <body> <ul> <li>appending: it's important that the index records for individual messages make it to disk before the index header indicating that they're there. so something like: <ol> <li>sync messages to disk (or depend on <tt>link()</tt> being atomic) <li>create new index records, flush to disk <li>create new header if necessary (adding new user flag), flush to disk <li>flush cache file <li>update index header, flush to disk </ol> </li> </ul> </body> </html>