forked from mirrors/gecko-dev
d7d4941cf6
1. The data sent from `HttpBackgroundChannelParent` to `HttpBackgroundChannelChild` is using type `nsDependentCSubstring`, since I'd like to reduce one copy in parent process. 2. The data sent from `HttpTransactionChild` to `HttpTransactionParent` is using type `nsCString`. The main reason is that the data is actually captured in `HttpTransactionParent::RecvOnDataAvailable` [1] and put in channel event queue. If we use `nsDependentCSubstring` here, the data would be copied in parent process. 3. In `HttpBackgroundChannelChild::RecvOnTransportAndData`, it's inevitable that the data is copied when assigning the data to a `nsCString`, since sometimes `HttpBackgroundChannelChild::RecvOnTransportAndData` needs to be queued and execute later. [1] https://searchfox.org/mozilla-central/rev/969fc7fa6c3c7fc489f53b7b7f8c902028b5169f/netwerk/protocol/http/HttpTransactionParent.cpp#556 Differential Revision: https://phabricator.services.mozilla.com/D88781
58 lines
1.7 KiB
C++
58 lines
1.7 KiB
C++
/* 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 "mozilla/net/BackgroundDataBridgeChild.h"
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#include "mozilla/net/HttpBackgroundChannelChild.h"
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namespace mozilla {
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namespace net {
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BackgroundDataBridgeChild::BackgroundDataBridgeChild(
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HttpBackgroundChannelChild* aBgChild)
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: mBgChild(aBgChild) {
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MOZ_ASSERT(aBgChild);
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}
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BackgroundDataBridgeChild::~BackgroundDataBridgeChild() = default;
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void BackgroundDataBridgeChild::ActorDestroy(ActorDestroyReason aWhy) {
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mBgChild = nullptr;
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}
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mozilla::ipc::IPCResult BackgroundDataBridgeChild::RecvOnTransportAndData(
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const uint64_t& offset, const uint32_t& count,
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const nsDependentCSubstring& data) {
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if (!mBgChild) {
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return IPC_OK();
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}
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if (mBgChild->ChannelClosed()) {
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Unused << Send__delete__(this);
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return IPC_OK();
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}
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return mBgChild->RecvOnTransportAndData(NS_OK, NS_NET_STATUS_RECEIVING_FROM,
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offset, count, data, true);
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}
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mozilla::ipc::IPCResult BackgroundDataBridgeChild::RecvOnStopRequest(
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nsresult aStatus, const ResourceTimingStructArgs& aTiming,
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const TimeStamp& aLastActiveTabOptHit,
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const nsHttpHeaderArray& aResponseTrailers) {
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if (!mBgChild) {
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return IPC_OK();
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}
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if (mBgChild->ChannelClosed()) {
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Unused << Send__delete__(this);
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return IPC_OK();
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}
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return mBgChild->RecvOnStopRequest(aStatus, aTiming, aLastActiveTabOptHit,
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aResponseTrailers,
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nsTArray<ConsoleReportCollected>(), true);
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}
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} // namespace net
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} // namespace mozilla
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