1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/quota/Utilities.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,36 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim: set ts=2 et sw=2 tw=80: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
1.8 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef mozilla_dom_quota_utilities_h__
1.11 +#define mozilla_dom_quota_utilities_h__
1.12 +
1.13 +#include "mozilla/dom/quota/QuotaCommon.h"
1.14 +
1.15 +BEGIN_QUOTA_NAMESPACE
1.16 +
1.17 +inline void
1.18 +IncrementUsage(uint64_t* aUsage, uint64_t aDelta)
1.19 +{
1.20 + // Watch for overflow!
1.21 + if ((UINT64_MAX - *aUsage) < aDelta) {
1.22 + NS_WARNING("Usage exceeds the maximum!");
1.23 + *aUsage = UINT64_MAX;
1.24 + }
1.25 + else {
1.26 + *aUsage += aDelta;
1.27 + }
1.28 +}
1.29 +
1.30 +inline bool
1.31 +PatternMatchesOrigin(const nsACString& aPatternString, const nsACString& aOrigin)
1.32 +{
1.33 + // Aren't we smart!
1.34 + return StringBeginsWith(aOrigin, aPatternString);
1.35 +}
1.36 +
1.37 +END_QUOTA_NAMESPACE
1.38 +
1.39 +#endif // mozilla_dom_quota_utilities_h__
