The Tor Browser: dom/file/File.cpp@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* vim: set ts=2 et sw=2 tw=80: */

     3 /* This Source Code Form is subject to the terms of the Mozilla Public

     4  * License, v. 2.0. If a copy of the MPL was not distributed with this file,

     5  * You can obtain one at http://mozilla.org/MPL/2.0/. */

     7 #include "File.h"

     9 #include "LockedFile.h"

    11 USING_FILE_NAMESPACE

    12 using mozilla::dom::indexedDB::IndexedDatabaseManager;

    14 // Create slice

    15 File::File(const File* aOther, uint64_t aStart, uint64_t aLength,

    16            const nsAString& aContentType)

    17 : nsDOMFileCC(aContentType, aOther->mStart + aStart, aLength),

    18   mFile(aOther->mFile), mLockedFile(aOther->mLockedFile),

    19   mWholeFile(false), mStoredFile(aOther->mStoredFile)

    20 {

    21   NS_ASSERTION(mFile, "Null file!");

    22   NS_ASSERTION(mLockedFile, "Null locked file!");

    24   if (mStoredFile) {

    25     FileInfo* fileInfo;

    27     if (IndexedDatabaseManager::IsClosed()) {

    28       fileInfo = aOther->GetFileInfo();

    29     }

    30     else {

    31       MutexAutoLock lock(IndexedDatabaseManager::FileMutex());

    32       fileInfo = aOther->GetFileInfo();

    33     }

    35     mFileInfos.AppendElement(fileInfo);

    36   }

    37 }

    39 NS_IMPL_CYCLE_COLLECTION_INHERITED(File, nsDOMFileCC,

    40                                    mLockedFile)

    42 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(File)

    43 NS_INTERFACE_MAP_END_INHERITING(nsDOMFileCC)

    45 NS_IMPL_ADDREF_INHERITED(File, nsDOMFileCC)

    46 NS_IMPL_RELEASE_INHERITED(File, nsDOMFileCC)

    48 NS_IMETHODIMP

    49 File::GetInternalStream(nsIInputStream **aStream)

    50 {

    51   NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");

    53   nsresult rv = mLockedFile->OpenInputStream(mWholeFile, mStart, mLength,

    54                                              aStream);

    55   NS_ENSURE_SUCCESS(rv, rv);

    57   return NS_OK;

    58 }

    60 already_AddRefed<nsIDOMBlob>

    61 File::CreateSlice(uint64_t aStart, uint64_t aLength,

    62                   const nsAString& aContentType)

    63 {

    64   NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");

    66   nsCOMPtr<nsIDOMBlob> t =

    67     new File(this, aStart, aLength, aContentType);

    68   return t.forget();

    69 }

    71 NS_IMETHODIMP

    72 File::GetMozFullPathInternal(nsAString &aFilename)

    73 {

    74   NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");

    75   NS_ASSERTION(mIsFile, "Should only be called on files");

    77   return mFile->GetPath(aFilename);

    78 }

The Tor Browser / file revision