41 lines
1.2 KiB
C++
41 lines
1.2 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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#include "mozilla/dom/quota/ArtificialFailure.h"
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#include "mozilla/Result.h"
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#include "mozilla/StaticPrefs_dom.h"
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namespace mozilla::dom::quota {
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Result<Ok, nsresult> ArtificialFailure(
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nsIQuotaArtificialFailure::Category aCategory) {
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MOZ_ASSERT(aCategory != 0 && ((aCategory & (aCategory - 1)) == 0));
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if ((StaticPrefs::dom_quotaManager_artificialFailure_categories() &
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aCategory) == 0) {
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return Ok{};
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}
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uint32_t probability =
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StaticPrefs::dom_quotaManager_artificialFailure_probability();
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if (probability == 0) {
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return Ok{};
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}
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uint32_t randomValue = std::rand() % 100;
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if (randomValue >= probability) {
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return Ok{};
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}
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uint32_t errorCode =
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StaticPrefs::dom_quotaManager_artificialFailure_errorCode();
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nsresult rv = static_cast<nsresult>(errorCode);
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return Err(rv);
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}
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} // namespace mozilla::dom::quota
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