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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/react-native/ReactCommon/jsinspector-modern
Просмотр файла: RuntimeAgent.h
/*
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#pragma once
#include "InspectorInterfaces.h"
#include "RuntimeAgentDelegate.h"
#include "RuntimeTarget.h"
#include <jsinspector-modern/cdp/CdpJson.h>
#include <jsinspector-modern/tracing/RuntimeSamplingProfile.h>
namespace facebook::react::jsinspector_modern {
class RuntimeTargetController;
struct SessionState;
/**
* An Agent that handles requests from the Chrome DevTools Protocol
* for a particular JS runtime instance. RuntimeAgent implements
* engine-agnostic functionality based on interfaces available in JSI /
* RuntimeTarget, and delegates engine-specific functionality to a
* RuntimeAgentDelegate.
*/
class RuntimeAgent final {
public:
/**
* \param frontendChannel A channel used to send responses and events to the
* frontend.
* \param targetController An interface to the RuntimeTarget that this agent
* is attached to. The caller is responsible for ensuring that the
* RuntimeTarget and controller outlive this object.
* \param executionContextDescription A description of the execution context
* represented by this runtime. This is used for disambiguating the
* source/destination of CDP messages when there are multiple runtimes
* (concurrently or over the life of a Host).
* \param sessionState The state of the session that created this agent.
* \param delegate The RuntimeAgentDelegate providing engine-specific
* CDP functionality.
*/
RuntimeAgent(
FrontendChannel frontendChannel,
RuntimeTargetController& targetController,
const ExecutionContextDescription& executionContextDescription,
SessionState& sessionState,
std::unique_ptr<RuntimeAgentDelegate> delegate);
~RuntimeAgent();
/**
* Handle a CDP request. The response will be sent over the provided
* \c FrontendChannel synchronously or asynchronously. Performs any
* synchronization required between the thread on which this method is
* called and the thread where the JS runtime is executing.
* \param req The parsed request.
* \returns true if this agent has responded, or will respond asynchronously,
* to the request (with either a success or error message). False if the
* agent expects another agent to respond to the request instead.
*/
bool handleRequest(const cdp::PreparsedRequest& req);
inline const ExecutionContextDescription& getExecutionContextDescription()
const {
return executionContextDescription_;
}
void notifyBindingCalled(
const std::string& bindingName,
const std::string& payload);
struct ExportedState {
std::unique_ptr<RuntimeAgentDelegate::ExportedState> delegateState;
};
/**
* Export the RuntimeAgent's state, if available. This will be called
* shortly before the RuntimeAgent is destroyed to preserve state that may be
* needed when constructin a new RuntimeAgent.
*/
ExportedState getExportedState();
/**
* Registers the corresponding RuntimeTarget for Tracing: might enable some
* capabilities that will be later used in Tracing Profile.
*/
void registerForTracing();
/**
* Start sampling profiler for the corresponding RuntimeTarget.
*/
void enableSamplingProfiler();
/**
* Stop sampling profiler for the corresponding RuntimeTarget.
*/
void disableSamplingProfiler();
/**
* Return recorded sampling profile for the previous sampling session.
*/
tracing::RuntimeSamplingProfile collectSamplingProfile();
private:
FrontendChannel frontendChannel_;
RuntimeTargetController& targetController_;
SessionState& sessionState_;
const std::unique_ptr<RuntimeAgentDelegate> delegate_;
const ExecutionContextDescription executionContextDescription_;
};
} // namespace facebook::react::jsinspector_modern
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