mirror of
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124 lines
5.3 KiB
Plaintext
124 lines
5.3 KiB
Plaintext
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla FastLoad code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2001
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Brendan Eich <brendan@mozilla.org> (original author)
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsISupports.idl"
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#include "nsrootidl.idl"
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interface nsIFile;
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interface nsISimpleEnumerator;
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/**
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* The nsIFastLoadFileControl interface and its subinterfaces are mix-ins for
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* classes implementing nsIObjectInputStream and nsIObjectOutputStream, so that
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* those stream types can be used with nsIFastLoadService to access and compute
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* FastLoad file checksums, update and check FastLoad file dependencies, and
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* multiplex documents loaded via non-blocking i/o.
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*
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* If an nsIObjectInputStream class doesn't support nsIFastLoadReadControl, or
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* an nsIObjectOutputStream class doesn't support nsIFastLoadWriteControl, that
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* implementation may still be useful for object serialization, but it can't be
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* used to read or write a Mozilla FastLoad file.
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*/
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[scriptable, uuid(8a1e2c63-af50-4147-af7e-26289dc180dd)]
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interface nsIFastLoadFileControl : nsISupports
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{
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/**
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* Get and set the recorded checksum value from the FastLoad file header.
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*/
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attribute PRUint32 checksum;
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/**
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* Multiplexed document control methods. A FastLoad file may contain
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* multiple interleaved documents identified by a URI specifier string,
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* and indexed for fast multiplexor select by an opaque URI object key.
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* You StartMuxedDocument when initiating a document load, then Select
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* before every batch of calls to (de)serialize document data, and End
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* when the load completes.
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*
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* Document multiplexing is necessary to support incremental FastLoad
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* development in a non-blocking i/o architecture such as Mozilla, where
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* some (but not all, at first, or for a while during development) of the
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* results of parsing and compiling various inputs can be multiplexed to
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* or from a FastLoad file.
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*
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* Note: Select returns the previously selected URI object in case the
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* caller is synchronously selecting and writing data to the FastLoad
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* file, so the caller can reselect the previous URI and return to code
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* the continues to write FastLoad data for the previous URI, unaware of
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* the nested select/write/reselect.
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*/
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void startMuxedDocument(in nsISupports aURI, in string aURISpec);
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nsISupports selectMuxedDocument(in nsISupports aURI);
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void endMuxedDocument(in nsISupports aURI);
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/**
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* Return true if aURISpec identifies a muxed document in the FastLoad
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* file, false otherwise.
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*/
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boolean hasMuxedDocument(in string aURISpec);
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};
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[scriptable, uuid(652ecec6-d40b-45b6-afef-641d6c63a35b)]
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interface nsIFastLoadReadControl : nsIFastLoadFileControl
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{
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/**
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* Computes the correct checksum of the FastLoad file, independent of the
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* header's checksum value. The header checksum field is treated as zero
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* when computing the checksum.
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*/
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PRUint32 computeChecksum();
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/**
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* Get the collection of dependency nsIFile instances recorded during the
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* FastLoad file write or read/update process, and checked during the read
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* process to invalidate the FastLoad file if any dependencies are newer.
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*/
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readonly attribute nsISimpleEnumerator dependencies;
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};
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[scriptable, uuid(2ad6e9e6-1379-4e45-a899-a54b27ff915c)]
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interface nsIFastLoadWriteControl : nsIFastLoadFileControl
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{
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/**
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* Add a file dependency of the FastLoad file (e.g., a .jar file) to the
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* set of dependencies that trigger regeneration if any dependency has a
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* last-modified-time greater than the FastLoad file's mtime.
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*/
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void addDependency(in nsIFile aFile);
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};
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