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Add a shared memory variant of CefProcessMessage (fixes issue #3126)

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CefSharedProcessMessageBuilder supports creation of a CefProcessMessage
backed by a CefSharedMemoryRegion.

Performance tests comparing the existing ArgumentList approach and the new
SharedMemoryRegion approach have been added to cefclient at
http://tests/ipc_performance.

CefMessageRouter has been updated to use SharedMemoryRegion as transport
for larger message payloads. The threshold is configurable via
|CefMessageRouterConfig.message_size_threshold|.

To test:
run `ceftests --gtest_filter=SendSharedProcessMessageTest.*:SharedProcessMessageTest.*:MessageRouterTest.Threshold*`
This commit is contained in:
Nik Pavlov
2022-07-04 09:49:15 +00:00
committed by Marshall Greenblatt
parent a931d49f3e
commit 81e892d19e
55 changed files with 4025 additions and 1132 deletions
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10
libcef/browser/browser_frame.cc
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@@ -42,6 +42,16 @@ void CefBrowserFrame::SendMessage(const std::string& name,
}
}
void CefBrowserFrame::SendSharedMemoryRegion(
const std::string& name,
base::ReadOnlySharedMemoryRegion region) {
// Always send to the newly created RFH, which may be speculative when
// navigating cross-origin.
if (auto host = GetFrameHost(/*prefer_speculative=*/true)) {
host->SendSharedMemoryRegion(name, std::move(region));
}
}
void CefBrowserFrame::FrameAttached(
mojo::PendingRemote<cef::mojom::RenderFrame> render_frame,
bool reattached) {