mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-29 15:52:07 +00:00
79 lines
2.5 KiB
C++
79 lines
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* 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 "WebBrowserPersistSerializeParent.h"
|
|
|
|
#include "nsReadableUtils.h"
|
|
#include "nsThreadUtils.h"
|
|
|
|
namespace mozilla {
|
|
|
|
WebBrowserPersistSerializeParent::WebBrowserPersistSerializeParent(
|
|
nsIWebBrowserPersistDocument* aDocument, nsIOutputStream* aStream,
|
|
nsIWebBrowserPersistWriteCompletion* aFinish)
|
|
: mDocument(aDocument),
|
|
mStream(aStream),
|
|
mFinish(aFinish),
|
|
mOutputError(NS_OK) {
|
|
MOZ_ASSERT(aDocument);
|
|
MOZ_ASSERT(aStream);
|
|
MOZ_ASSERT(aFinish);
|
|
}
|
|
|
|
WebBrowserPersistSerializeParent::~WebBrowserPersistSerializeParent() = default;
|
|
|
|
mozilla::ipc::IPCResult WebBrowserPersistSerializeParent::RecvWriteData(
|
|
nsTArray<uint8_t>&& aData) {
|
|
if (NS_FAILED(mOutputError)) {
|
|
return IPC_OK();
|
|
}
|
|
|
|
uint32_t written = 0;
|
|
static_assert(sizeof(char) == sizeof(uint8_t),
|
|
"char must be (at least?) 8 bits");
|
|
const char* data = reinterpret_cast<const char*>(aData.Elements());
|
|
// nsIOutputStream::Write is allowed to return short writes.
|
|
while (written < aData.Length()) {
|
|
uint32_t writeReturn;
|
|
nsresult rv =
|
|
mStream->Write(data + written, aData.Length() - written, &writeReturn);
|
|
if (NS_FAILED(rv)) {
|
|
mOutputError = rv;
|
|
return IPC_OK();
|
|
}
|
|
written += writeReturn;
|
|
}
|
|
return IPC_OK();
|
|
}
|
|
|
|
mozilla::ipc::IPCResult WebBrowserPersistSerializeParent::Recv__delete__(
|
|
const nsCString& aContentType, const nsresult& aStatus) {
|
|
if (NS_SUCCEEDED(mOutputError)) {
|
|
mOutputError = aStatus;
|
|
}
|
|
mFinish->OnFinish(mDocument, mStream, aContentType, mOutputError);
|
|
mFinish = nullptr;
|
|
return IPC_OK();
|
|
}
|
|
|
|
void WebBrowserPersistSerializeParent::ActorDestroy(ActorDestroyReason aWhy) {
|
|
if (mFinish) {
|
|
MOZ_ASSERT(aWhy != Deletion);
|
|
// See comment in WebBrowserPersistDocumentParent::ActorDestroy
|
|
// (or bug 1202887) for why this is deferred.
|
|
nsCOMPtr<nsIRunnable> errorLater =
|
|
NewRunnableMethod<nsCOMPtr<nsIWebBrowserPersistDocument>,
|
|
nsCOMPtr<nsIOutputStream>, nsCString, nsresult>(
|
|
"nsIWebBrowserPersistWriteCompletion::OnFinish", mFinish,
|
|
&nsIWebBrowserPersistWriteCompletion::OnFinish, mDocument, mStream,
|
|
""_ns, NS_ERROR_FAILURE);
|
|
NS_DispatchToCurrentThread(errorLater);
|
|
mFinish = nullptr;
|
|
}
|
|
}
|
|
|
|
} // namespace mozilla
|