gecko-dev/dom/cache/FileUtils.h

73 lines
2.1 KiB
C++

/* -*- 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_FileUtils_h
#define mozilla_dom_cache_FileUtils_h
#include "mozilla/Attributes.h"
#include "mozilla/dom/cache/Types.h"
#include "nsStreamUtils.h"
#include "nsTArrayForwardDeclare.h"
struct nsID;
class nsIFile;
namespace mozilla {
namespace dom {
namespace cache {
// TODO: remove static class and use functions in cache namespace (bug 1110485)
class FileUtils MOZ_FINAL
{
public:
enum BodyFileType
{
BODY_FILE_FINAL,
BODY_FILE_TMP
};
static nsresult BodyCreateDir(nsIFile* aBaseDir);
// Note that this function can only be used during the initialization of the
// database. We're unlikely to be able to delete the DB successfully past
// that point due to the file being in use.
static nsresult BodyDeleteDir(nsIFile* aBaseDir);
static nsresult BodyGetCacheDir(nsIFile* aBaseDir, const nsID& aId,
nsIFile** aCacheDirOut);
static nsresult
BodyStartWriteStream(const QuotaInfo& aQuotaInfo, nsIFile* aBaseDir,
nsIInputStream* aSource, void* aClosure,
nsAsyncCopyCallbackFun aCallback, nsID* aIdOut,
nsISupports** aCopyContextOut);
static void
BodyCancelWrite(nsIFile* aBaseDir, nsISupports* aCopyContext);
static nsresult
BodyFinalizeWrite(nsIFile* aBaseDir, const nsID& aId);
static nsresult
BodyOpen(const QuotaInfo& aQuotaInfo, nsIFile* aBaseDir, const nsID& aId,
nsIInputStream** aStreamOut);
static nsresult
BodyDeleteFiles(nsIFile* aBaseDir, const nsTArray<nsID>& aIdList);
private:
static nsresult
BodyIdToFile(nsIFile* aBaseDir, const nsID& aId, BodyFileType aType,
nsIFile** aBodyFileOut);
FileUtils() = delete;
~FileUtils() = delete;
};
} // namespace cache
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_cache_FileUtils_h