forked from mirrors/gecko-dev
87438519f0
Before P1, GetCurrentThreadSerialEventTarget would have always returned the same data as NS_GetCurrentThread, making the comment incorrect Now it will properly return the running TaskQueue if any. This change of name more clearly exposes what they are doing, as we aren't always dealing with threads directly; but a nsISerialEventTarget Differential Revision: https://phabricator.services.mozilla.com/D80354
138 lines
3.9 KiB
C++
138 lines
3.9 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "FileCreatorParent.h"
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#include "mozilla/dom/FileBlobImpl.h"
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#include "mozilla/dom/IPCBlobUtils.h"
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#include "mozilla/dom/MultipartBlobImpl.h"
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namespace mozilla {
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namespace dom {
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FileCreatorParent::FileCreatorParent()
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: mBackgroundEventTarget(GetCurrentEventTarget()), mIPCActive(true) {}
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FileCreatorParent::~FileCreatorParent() = default;
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mozilla::ipc::IPCResult FileCreatorParent::CreateAndShareFile(
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const nsString& aFullPath, const nsString& aType, const nsString& aName,
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const Maybe<int64_t>& aLastModified, const bool& aExistenceCheck,
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const bool& aIsFromNsIFile) {
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RefPtr<dom::BlobImpl> blobImpl;
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nsresult rv =
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CreateBlobImpl(aFullPath, aType, aName, aLastModified.isSome(),
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aLastModified.isSome() ? aLastModified.value() : 0,
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aExistenceCheck, aIsFromNsIFile, getter_AddRefs(blobImpl));
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if (NS_WARN_IF(NS_FAILED(rv))) {
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Unused << Send__delete__(this, FileCreationErrorResult(rv));
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return IPC_OK();
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}
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MOZ_ASSERT(blobImpl);
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// FileBlobImpl is unable to return the correct type on this thread because
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// nsIMIMEService is not thread-safe. We must exec the 'type' getter on
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// main-thread before send the blob to the child actor.
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RefPtr<FileCreatorParent> self = this;
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NS_DispatchToMainThread(NS_NewRunnableFunction(
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"FileCreatorParent::CreateAndShareFile", [self, blobImpl]() {
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nsAutoString type;
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blobImpl->GetType(type);
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self->mBackgroundEventTarget->Dispatch(NS_NewRunnableFunction(
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"FileCreatorParent::CreateAndShareFile return", [self, blobImpl]() {
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if (self->mIPCActive) {
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IPCBlob ipcBlob;
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nsresult rv = dom::IPCBlobUtils::Serialize(
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blobImpl, self->Manager(), ipcBlob);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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Unused << Send__delete__(self, FileCreationErrorResult(rv));
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return;
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}
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Unused << Send__delete__(self,
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FileCreationSuccessResult(ipcBlob));
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}
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}));
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}));
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return IPC_OK();
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}
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void FileCreatorParent::ActorDestroy(ActorDestroyReason aWhy) {
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mIPCActive = false;
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}
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/* static */
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nsresult FileCreatorParent::CreateBlobImpl(
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const nsAString& aPath, const nsAString& aType, const nsAString& aName,
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bool aLastModifiedPassed, int64_t aLastModified, bool aExistenceCheck,
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bool aIsFromNsIFile, BlobImpl** aBlobImpl) {
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MOZ_ASSERT(!NS_IsMainThread());
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nsCOMPtr<nsIFile> file;
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nsresult rv = NS_NewLocalFile(aPath, true, getter_AddRefs(file));
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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bool exists;
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rv = file->Exists(&exists);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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if (aExistenceCheck) {
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if (!exists) {
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return NS_ERROR_FILE_NOT_FOUND;
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}
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bool isDir;
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rv = file->IsDirectory(&isDir);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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if (isDir) {
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return NS_ERROR_FILE_IS_DIRECTORY;
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}
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}
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RefPtr<FileBlobImpl> impl = new FileBlobImpl(file);
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// If the file doesn't exist, we cannot have its path, its size and so on.
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// Let's set them now.
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if (!exists) {
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MOZ_ASSERT(!aExistenceCheck);
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impl->SetMozFullPath(aPath);
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impl->SetLastModified(0);
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impl->SetEmptySize();
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}
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if (!aName.IsEmpty()) {
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impl->SetName(aName);
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}
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if (!aType.IsEmpty()) {
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impl->SetType(aType);
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}
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if (aLastModifiedPassed) {
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impl->SetLastModified(aLastModified);
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}
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if (!aIsFromNsIFile) {
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impl->SetMozFullPath(EmptyString());
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}
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impl.forget(aBlobImpl);
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return NS_OK;
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}
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} // namespace dom
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} // namespace mozilla
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