1 // Copyright 2006-2008 the V8 project authors. All rights reserved.
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3 // modification, are permitted provided that the following conditions are
6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer.
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9 // copyright notice, this list of conditions and the following
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11 // with the distribution.
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13 // contributors may be used to endorse or promote products derived
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16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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28 #ifndef V8_DEBUG_AGENT_H_
29 #define V8_DEBUG_AGENT_H_
31 #ifdef ENABLE_DEBUGGER_SUPPORT
32 #include "../include/v8-debug.h"
38 // Forward decelrations.
39 class DebuggerAgentSession;
43 // Debugger agent which starts a socket listener on the debugger port and
44 // handles connection from a remote debugger.
45 class DebuggerAgent: public Thread {
47 DebuggerAgent(Isolate* isolate, const char* name, int port);
51 void WaitUntilListening();
53 Isolate* isolate() { return isolate_; }
57 void CreateSession(Socket* socket);
58 void DebuggerMessage(const v8::Debug::Message& message);
60 void OnSessionClosed(DebuggerAgentSession* session);
63 SmartArrayPointer<const char> name_; // Name of the embedding application.
64 int port_; // Port to use for the agent.
65 Socket* server_; // Server socket for listen/accept.
66 bool terminate_; // Termination flag.
67 RecursiveMutex session_access_; // Mutex guarding access to session_.
68 DebuggerAgentSession* session_; // Current active session if any.
69 Semaphore terminate_now_; // Semaphore to signal termination.
72 friend class DebuggerAgentSession;
73 friend void DebuggerAgentMessageHandler(const v8::Debug::Message& message);
75 DISALLOW_COPY_AND_ASSIGN(DebuggerAgent);
79 // Debugger agent session. The session receives requests from the remote
80 // debugger and sends debugger events/responses to the remote debugger.
81 class DebuggerAgentSession: public Thread {
83 DebuggerAgentSession(DebuggerAgent* agent, Socket* client)
84 : Thread("v8:DbgAgntSessn"),
85 agent_(agent), client_(client) {}
86 ~DebuggerAgentSession();
88 void DebuggerMessage(Vector<uint16_t> message);
94 void DebuggerMessage(Vector<char> message);
96 DebuggerAgent* agent_;
99 DISALLOW_COPY_AND_ASSIGN(DebuggerAgentSession);
103 // Utility methods factored out to be used by the D8 shell as well.
104 class DebuggerAgentUtil {
106 static const char* const kContentLength;
108 static SmartArrayPointer<char> ReceiveMessage(Socket* conn);
109 static bool SendConnectMessage(Socket* conn, const char* embedding_host);
110 static bool SendMessage(Socket* conn, const Vector<uint16_t> message);
111 static bool SendMessage(Socket* conn, const v8::Handle<v8::String> message);
112 static int ReceiveAll(Socket* conn, char* data, int len);
115 } } // namespace v8::internal
117 #endif // ENABLE_DEBUGGER_SUPPORT
119 #endif // V8_DEBUG_AGENT_H_