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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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47
libcef/renderer/frame_impl.cc
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@@ -21,6 +21,7 @@
#include "libcef/common/frame_util.h"
#include "libcef/common/net/http_header_utils.h"
#include "libcef/common/process_message_impl.h"
#include "libcef/common/process_message_smr_impl.h"
#include "libcef/common/request_impl.h"
#include "libcef/common/string_util.h"
#include "libcef/renderer/blink_glue.h"
@@ -270,16 +271,30 @@ void CefFrameImpl::SendProcessMessage(CefProcessId target_process,
if (!message || !message->IsValid())
return;
SendToBrowserFrame(
__FUNCTION__,
base::BindOnce(
[](CefRefPtr<CefProcessMessage> message,
const BrowserFrameType& browser_frame) {
auto impl = static_cast<CefProcessMessageImpl*>(message.get());
browser_frame->SendMessage(impl->GetName(),
impl->TakeArgumentList());
},
message));
if (message->GetArgumentList() != nullptr) {
// Invalidate the message object immediately by taking the argument list.
auto argument_list =
static_cast<CefProcessMessageImpl*>(message.get())->TakeArgumentList();
SendToBrowserFrame(
__FUNCTION__,
base::BindOnce(
[](const CefString& name, base::ListValue argument_list,
const BrowserFrameType& render_frame) {
render_frame->SendMessage(name, std::move(argument_list));
},
message->GetName(), std::move(argument_list)));
} else {
auto region =
static_cast<CefProcessMessageSMRImpl*>(message.get())->TakeRegion();
SendToBrowserFrame(
__FUNCTION__,
base::BindOnce(
[](const CefString& name, base::ReadOnlySharedMemoryRegion region,
const BrowserFrameType& render_frame) {
render_frame->SendSharedMemoryRegion(name, std::move(region));
},
message->GetName(), std::move(region)));
}
}
std::unique_ptr<blink::WebURLLoader> CefFrameImpl::CreateURLLoader() {
@@ -654,6 +669,18 @@ void CefFrameImpl::SendMessage(const std::string& name, base::Value arguments) {
}
}
void CefFrameImpl::SendSharedMemoryRegion(
const std::string& name,
base::ReadOnlySharedMemoryRegion region) {
if (auto app = CefAppManager::Get()->GetApplication()) {
if (auto handler = app->GetRenderProcessHandler()) {
CefRefPtr<CefProcessMessage> message(
new CefProcessMessageSMRImpl(name, std::move(region)));
handler->OnProcessMessageReceived(browser_, this, PID_BROWSER, message);
}
}
}
void CefFrameImpl::SendCommand(const std::string& command) {
ExecuteOnLocalFrame(
__FUNCTION__,