gecko-dev/toolkit/components/url-classifier/nsIUrlClassifierPrefixSet.idl
2012-05-21 12:12:37 +01:00

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/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsISupports.idl"
#include "nsIFile.idl"
interface nsIArray;
// Note that the PrefixSet name is historical and we do properly support
// duplicated values, so it's really a Prefix Trie.
// All methods are thread-safe.
[scriptable, uuid(519c8519-0f30-426b-bb7b-c400ba0318e2)]
interface nsIUrlClassifierPrefixSet : nsISupports
{
// Fills the PrefixSet with the given array of prefixes.
// Can send an empty Array to clear the tree. A truly "empty tree"
// cannot be represented, so put a sentinel value if that is required
// Requires array to be sorted.
void setPrefixes([const, array, size_is(aLength)] in unsigned long aPrefixes,
in unsigned long aLength);
// Do a lookup in the PrefixSet, return whether the value is present.
// If aReady is set, we will block until there are any entries.
// If not set, we will return in aReady whether we were ready or not.
boolean probe(in unsigned long aPrefix, in unsigned long aKey,
inout boolean aReady);
// Return the key that is used to randomize the collisions in the prefixes.
PRUint32 getKey();
boolean isEmpty();
void loadFromFile(in nsIFile aFile);
void storeToFile(in nsIFile aFile);
};