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author | Moonchild <moonchild@palemoon.org> | 2022-02-12 17:47:03 +0000 |
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committer | Matt A. Tobin <email@mattatobin.com> | 2022-02-12 14:23:18 -0600 |
commit | f66babd8b8368ada3e5aa29cdef1c77291ee4ddd (patch) | |
tree | e3842e2a6bf19090185f9c475b3846e1bb79ac97 /dom/quota/UsageInfo.h | |
download | GRE-f66babd8b8368ada3e5aa29cdef1c77291ee4ddd.tar.gz |
Create the Goanna Runtime Environment
Diffstat (limited to 'dom/quota/UsageInfo.h')
-rw-r--r-- | dom/quota/UsageInfo.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/dom/quota/UsageInfo.h b/dom/quota/UsageInfo.h new file mode 100644 index 000000000..478c8094f --- /dev/null +++ b/dom/quota/UsageInfo.h @@ -0,0 +1,107 @@ +/* -*- Mode: C++; tab-width: 8; 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/. */ + +#ifndef mozilla_dom_quota_usageinfo_h__ +#define mozilla_dom_quota_usageinfo_h__ + +#include "mozilla/dom/quota/QuotaCommon.h" + +#include "mozilla/Atomics.h" +#include "mozilla/CheckedInt.h" + +BEGIN_QUOTA_NAMESPACE + +class UsageInfo +{ +public: + UsageInfo() + : mDatabaseUsage(0) + , mFileUsage(0) + , mLimit(0) + { } + + virtual ~UsageInfo() + { } + + void + Append(const UsageInfo& aUsageInfo) + { + IncrementUsage(&mDatabaseUsage, aUsageInfo.mDatabaseUsage); + IncrementUsage(&mFileUsage, aUsageInfo.mFileUsage); + } + + void + AppendToDatabaseUsage(uint64_t aUsage) + { + IncrementUsage(&mDatabaseUsage, aUsage); + } + + void + AppendToFileUsage(uint64_t aUsage) + { + IncrementUsage(&mFileUsage, aUsage); + } + + void + SetLimit(uint64_t aLimit) + { + mLimit = aLimit; + } + + uint64_t + DatabaseUsage() + { + return mDatabaseUsage; + } + + uint64_t + FileUsage() + { + return mFileUsage; + } + + uint64_t + Limit() + { + return mLimit; + } + + uint64_t + TotalUsage() + { + uint64_t totalUsage = mDatabaseUsage; + IncrementUsage(&totalUsage, mFileUsage); + return totalUsage; + } + + void + ResetUsage() + { + mDatabaseUsage = 0; + mFileUsage = 0; + } + + static void + IncrementUsage(uint64_t* aUsage, uint64_t aDelta) + { + MOZ_ASSERT(aUsage); + CheckedUint64 value = *aUsage; + value += aDelta; + if (value.isValid()) { + *aUsage = value.value(); + } else { + *aUsage = UINT64_MAX; + } + } + +private: + uint64_t mDatabaseUsage; + uint64_t mFileUsage; + uint64_t mLimit; +}; + +END_QUOTA_NAMESPACE + +#endif // mozilla_dom_quota_usageinfo_h__ |