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// Copyright 2006-2008 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_DEBUG_AGENT_H_
#define V8_DEBUG_AGENT_H_
#include "../include/v8-debug.h"
#include "platform.h"
namespace v8 {
namespace internal {
// Forward decelrations.
class DebuggerAgentSession;
class Socket;
// Debugger agent which starts a socket listener on the debugger port and
// handles connection from a remote debugger.
class DebuggerAgent: public Thread {
public:
DebuggerAgent(Isolate* isolate, const char* name, int port);
~DebuggerAgent();
void Shutdown();
void WaitUntilListening();
Isolate* isolate() { return isolate_; }
private:
void Run();
void CreateSession(Socket* socket);
void DebuggerMessage(const v8::Debug::Message& message);
void CloseSession();
void OnSessionClosed(DebuggerAgentSession* session);
Isolate* isolate_;
SmartArrayPointer<const char> name_; // Name of the embedding application.
int port_; // Port to use for the agent.
Socket* server_; // Server socket for listen/accept.
bool terminate_; // Termination flag.
RecursiveMutex session_access_; // Mutex guarding access to session_.
DebuggerAgentSession* session_; // Current active session if any.
Semaphore terminate_now_; // Semaphore to signal termination.
Semaphore listening_;
friend class DebuggerAgentSession;
friend void DebuggerAgentMessageHandler(const v8::Debug::Message& message);
DISALLOW_COPY_AND_ASSIGN(DebuggerAgent);
};
// Debugger agent session. The session receives requests from the remote
// debugger and sends debugger events/responses to the remote debugger.
class DebuggerAgentSession: public Thread {
public:
DebuggerAgentSession(DebuggerAgent* agent, Socket* client)
: Thread("v8:DbgAgntSessn"),
agent_(agent), client_(client) {}
~DebuggerAgentSession();
void DebuggerMessage(Vector<uint16_t> message);
void Shutdown();
private:
void Run();
void DebuggerMessage(Vector<char> message);
DebuggerAgent* agent_;
Socket* client_;
DISALLOW_COPY_AND_ASSIGN(DebuggerAgentSession);
};
// Utility methods factored out to be used by the D8 shell as well.
class DebuggerAgentUtil {
public:
static const char* const kContentLength;
static SmartArrayPointer<char> ReceiveMessage(Socket* conn);
static bool SendConnectMessage(Socket* conn, const char* embedding_host);
static bool SendMessage(Socket* conn, const Vector<uint16_t> message);
static bool SendMessage(Socket* conn, const v8::Handle<v8::String> message);
static int ReceiveAll(Socket* conn, char* data, int len);
};
} } // namespace v8::internal
#endif // V8_DEBUG_AGENT_H_
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