зеркало из https://github.com/mozilla/gecko-dev.git
114 строки
3.1 KiB
C++
114 строки
3.1 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=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/. */
|
|
|
|
#include "File.h"
|
|
|
|
#include "LockedFile.h"
|
|
#include "mozilla/Assertions.h"
|
|
#include "nsDebug.h"
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
using indexedDB::IndexedDatabaseManager;
|
|
|
|
// Create as a file
|
|
File::File(const nsAString& aName, const nsAString& aContentType,
|
|
uint64_t aLength, nsIFile* aFile, LockedFile* aLockedFile)
|
|
: nsDOMFileCC(aName, aContentType, aLength),
|
|
mFile(aFile), mLockedFile(aLockedFile),
|
|
mWholeFile(true), mStoredFile(false)
|
|
{
|
|
MOZ_ASSERT(mFile, "Null file!");
|
|
MOZ_ASSERT(mLockedFile, "Null locked file!");
|
|
}
|
|
|
|
// Create as a stored file
|
|
File::File(const nsAString& aName, const nsAString& aContentType,
|
|
uint64_t aLength, nsIFile* aFile, LockedFile* aLockedFile,
|
|
FileInfo* aFileInfo)
|
|
: nsDOMFileCC(aName, aContentType, aLength),
|
|
mFile(aFile), mLockedFile(aLockedFile),
|
|
mWholeFile(true), mStoredFile(true)
|
|
{
|
|
MOZ_ASSERT(mFile, "Null file!");
|
|
MOZ_ASSERT(mLockedFile, "Null locked file!");
|
|
mFileInfos.AppendElement(aFileInfo);
|
|
}
|
|
|
|
// Create slice
|
|
File::File(const File* aOther, uint64_t aStart, uint64_t aLength,
|
|
const nsAString& aContentType)
|
|
: nsDOMFileCC(aContentType, aOther->mStart + aStart, aLength),
|
|
mFile(aOther->mFile), mLockedFile(aOther->mLockedFile),
|
|
mWholeFile(false), mStoredFile(aOther->mStoredFile)
|
|
{
|
|
NS_ASSERTION(mFile, "Null file!");
|
|
NS_ASSERTION(mLockedFile, "Null locked file!");
|
|
|
|
if (mStoredFile) {
|
|
FileInfo* fileInfo;
|
|
|
|
if (IndexedDatabaseManager::IsClosed()) {
|
|
fileInfo = aOther->GetFileInfo();
|
|
}
|
|
else {
|
|
MutexAutoLock lock(IndexedDatabaseManager::FileMutex());
|
|
fileInfo = aOther->GetFileInfo();
|
|
}
|
|
|
|
mFileInfos.AppendElement(fileInfo);
|
|
}
|
|
}
|
|
|
|
File::~File()
|
|
{
|
|
}
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_INHERITED(File, nsDOMFileCC,
|
|
mLockedFile)
|
|
|
|
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(File)
|
|
NS_INTERFACE_MAP_END_INHERITING(nsDOMFileCC)
|
|
|
|
NS_IMPL_ADDREF_INHERITED(File, nsDOMFileCC)
|
|
NS_IMPL_RELEASE_INHERITED(File, nsDOMFileCC)
|
|
|
|
NS_IMETHODIMP
|
|
File::GetInternalStream(nsIInputStream **aStream)
|
|
{
|
|
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
|
|
|
|
nsresult rv = mLockedFile->OpenInputStream(mWholeFile, mStart, mLength,
|
|
aStream);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
already_AddRefed<nsIDOMBlob>
|
|
File::CreateSlice(uint64_t aStart, uint64_t aLength,
|
|
const nsAString& aContentType)
|
|
{
|
|
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
|
|
|
|
nsCOMPtr<nsIDOMBlob> t =
|
|
new File(this, aStart, aLength, aContentType);
|
|
return t.forget();
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
File::GetMozFullPathInternal(nsAString &aFilename)
|
|
{
|
|
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
|
|
NS_ASSERTION(mIsFile, "Should only be called on files");
|
|
|
|
return mFile->GetPath(aFilename);
|
|
}
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|