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
40 lines
1.3 KiB
C++
40 lines
1.3 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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#ifndef mozilla_net_BackgroundDataBridgeChild_h
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#define mozilla_net_BackgroundDataBridgeChild_h
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#include "mozilla/net/PBackgroundDataBridgeChild.h"
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#include "mozilla/ipc/BackgroundChild.h"
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namespace mozilla {
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namespace net {
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class HttpBackgroundChannelChild;
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class BackgroundDataBridgeChild final : public PBackgroundDataBridgeChild {
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(BackgroundDataBridgeChild, override)
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explicit BackgroundDataBridgeChild(HttpBackgroundChannelChild* aBgChild);
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protected:
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virtual ~BackgroundDataBridgeChild();
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void ActorDestroy(ActorDestroyReason aWhy) override;
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RefPtr<HttpBackgroundChannelChild> mBgChild;
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public:
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mozilla::ipc::IPCResult RecvOnTransportAndData(
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const uint64_t& offset, const uint32_t& count,
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const nsDependentCSubstring& data);
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mozilla::ipc::IPCResult 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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};
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} // namespace net
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} // namespace mozilla
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#endif // mozilla_net_BackgroundDataBridgeChild_h
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