From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- dom/cache/QuotaClient.h | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 dom/cache/QuotaClient.h (limited to 'dom/cache/QuotaClient.h') diff --git a/dom/cache/QuotaClient.h b/dom/cache/QuotaClient.h new file mode 100644 index 0000000000..1bc04c1112 --- /dev/null +++ b/dom/cache/QuotaClient.h @@ -0,0 +1,47 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* 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_cache_QuotaClient_h +#define mozilla_dom_cache_QuotaClient_h + +#include "mozilla/Attributes.h" +#include "mozilla/dom/cache/Types.h" +#include "mozilla/dom/quota/Client.h" +#include "mozIStorageConnection.h" + +namespace mozilla::dom::cache { + +already_AddRefed CreateQuotaClient(); + +/** + * The following functions are used to access the directory padding file. The + * directory padding file lives in DOM Cache base directory + * (e.g. foo.com/cache/.padding). It is used to keep the current overall padding + * size for an origin, so that the QuotaManager doesn't need to access the + * database when getting quota clients' usage. + * + * For the directory padding file, it's only accessed on Quota IO thread + * (for getting current usage) and Cache IO threads (for tracking padding size + * change). Besides, the padding file is protected by a mutex lock held by + * CacheQuotaClient. + * + * Each padding file should only take 8 bytes (int64_t) to record the overall + * padding size. Besides, we use the temporary padding file to indicate if the + * previous action is completed successfully. If the temporary file exists, it + * represents that the previous action is failed and the content of padding file + * cannot be trusted, and we need to restore the padding file from the database. + */ + +nsresult RestorePaddingFile(nsIFile* aBaseDir, mozIStorageConnection* aConn); + +nsresult WipePaddingFile(const CacheDirectoryMetadata& aDirectoryMetadata, + nsIFile* aBaseDir); + +extern const nsLiteralString kCachesSQLiteFilename; + +} // namespace mozilla::dom::cache + +#endif // mozilla_dom_cache_QuotaClient_h -- cgit v1.2.3