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/* -*- 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 nsACString& 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
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