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#ifndef SRC_INSPECTOR_AGENT_H_
#define SRC_INSPECTOR_AGENT_H_
#include <memory>
#include <stddef.h>
#if !HAVE_INSPECTOR
#error("This header can only be used when inspector is enabled")
#endif
#include "node_debug_options.h"
#include "node_platform.h"
#include "v8.h"
namespace v8_inspector {
class StringView;
} // namespace v8_inspector
namespace node {
// Forward declaration to break recursive dependency chain with src/env.h.
class Environment;
struct ContextInfo;
namespace inspector {
class InspectorSessionDelegate {
public:
virtual ~InspectorSessionDelegate() = default;
virtual bool WaitForFrontendMessageWhilePaused() = 0;
virtual void SendMessageToFrontend(const v8_inspector::StringView& message)
= 0;
};
class InspectorIo;
class NodeInspectorClient;
class Agent {
public:
explicit Agent(node::Environment* env);
~Agent();
// Create client_, may create io_ if option enabled
bool Start(node::NodePlatform* platform, const char* path,
const DebugOptions& options);
// Stop and destroy io_
void Stop();
bool IsStarted() { return !!client_; }
// IO thread started, and client connected
bool IsWaitingForConnect();
void WaitForDisconnect();
void FatalException(v8::Local<v8::Value> error,
v8::Local<v8::Message> message);
// Async stack traces instrumentation.
void AsyncTaskScheduled(const v8_inspector::StringView& taskName, void* task,
bool recurring);
void AsyncTaskCanceled(void* task);
void AsyncTaskStarted(void* task);
void AsyncTaskFinished(void* task);
void AllAsyncTasksCanceled();
void RegisterAsyncHook(v8::Isolate* isolate,
v8::Local<v8::Function> enable_function,
v8::Local<v8::Function> disable_function);
// These methods are called by the WS protocol and JS binding to create
// inspector sessions. The inspector responds by using the delegate to send
// messages back.
void Connect(InspectorSessionDelegate* delegate);
void Disconnect();
void Dispatch(const v8_inspector::StringView& message);
InspectorSessionDelegate* delegate();
void RunMessageLoop();
bool enabled() { return enabled_; }
void PauseOnNextJavascriptStatement(const std::string& reason);
InspectorIo* io() {
return io_.get();
}
// Can only be called from the main thread.
bool StartIoThread(bool wait_for_connect);
// Calls StartIoThread() from off the main thread.
void RequestIoThreadStart();
DebugOptions& options() { return debug_options_; }
void ContextCreated(v8::Local<v8::Context> context, const ContextInfo& info);
void EnableAsyncHook();
void DisableAsyncHook();
private:
void ToggleAsyncHook(v8::Isolate* isolate,
const v8::Persistent<v8::Function>& fn);
node::Environment* parent_env_;
std::unique_ptr<NodeInspectorClient> client_;
std::unique_ptr<InspectorIo> io_;
v8::Platform* platform_;
bool enabled_;
std::string path_;
DebugOptions debug_options_;
bool pending_enable_async_hook_;
bool pending_disable_async_hook_;
v8::Persistent<v8::Function> enable_async_hook_function_;
v8::Persistent<v8::Function> disable_async_hook_function_;
};
} // namespace inspector
} // namespace node
#endif // SRC_INSPECTOR_AGENT_H_
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