michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim: set ts=2 et sw=2 tw=80: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0:  * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef mozilla_dom_quota_utilities_h__
michael@0: #define mozilla_dom_quota_utilities_h__
michael@0: 
michael@0: #include "mozilla/dom/quota/QuotaCommon.h"
michael@0: 
michael@0: BEGIN_QUOTA_NAMESPACE
michael@0: 
michael@0: inline void
michael@0: IncrementUsage(uint64_t* aUsage, uint64_t aDelta)
michael@0: {
michael@0:   // Watch for overflow!
michael@0:   if ((UINT64_MAX - *aUsage) < aDelta) {
michael@0:     NS_WARNING("Usage exceeds the maximum!");
michael@0:     *aUsage = UINT64_MAX;
michael@0:   }
michael@0:   else {
michael@0:     *aUsage += aDelta;
michael@0:   }
michael@0: }
michael@0: 
michael@0: inline bool
michael@0: PatternMatchesOrigin(const nsACString& aPatternString, const nsACString& aOrigin)
michael@0: {
michael@0:   // Aren't we smart!
michael@0:   return StringBeginsWith(aOrigin, aPatternString);
michael@0: }
michael@0: 
michael@0: END_QUOTA_NAMESPACE
michael@0: 
michael@0: #endif // mozilla_dom_quota_utilities_h__