зеркало из https://github.com/mozilla/gecko-dev.git
93 строки
1.6 KiB
C++
93 строки
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_quota_usageinfo_h__
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#define mozilla_dom_quota_usageinfo_h__
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#include "mozilla/dom/quota/QuotaCommon.h"
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#include "mozilla/Atomics.h"
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#include "Utilities.h"
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BEGIN_QUOTA_NAMESPACE
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class UsageInfo
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{
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public:
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UsageInfo()
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: mCanceled(false), mDatabaseUsage(0), mFileUsage(0)
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{ }
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virtual ~UsageInfo()
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{ }
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bool
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Canceled()
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{
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return mCanceled;
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}
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nsresult
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Cancel()
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{
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if (mCanceled.exchange(true)) {
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NS_WARNING("Canceled more than once?!");
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return NS_ERROR_UNEXPECTED;
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}
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return NS_OK;
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}
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void
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AppendToDatabaseUsage(uint64_t aUsage)
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{
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IncrementUsage(&mDatabaseUsage, aUsage);
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}
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void
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AppendToFileUsage(uint64_t aUsage)
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{
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IncrementUsage(&mFileUsage, aUsage);
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}
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uint64_t
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DatabaseUsage()
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{
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return mDatabaseUsage;
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}
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uint64_t
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FileUsage()
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{
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return mFileUsage;
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}
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uint64_t
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TotalUsage()
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{
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uint64_t totalUsage = mDatabaseUsage;
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IncrementUsage(&totalUsage, mFileUsage);
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return totalUsage;
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}
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void
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ResetUsage()
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{
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mDatabaseUsage = 0;
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mFileUsage = 0;
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}
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protected:
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mozilla::Atomic<bool> mCanceled;
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private:
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uint64_t mDatabaseUsage;
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uint64_t mFileUsage;
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};
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END_QUOTA_NAMESPACE
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#endif // mozilla_dom_quota_usageinfo_h__
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