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authorRyan <ry@tinyclouds.org>2009-04-22 19:35:47 +0200
committerRyan <ry@tinyclouds.org>2009-04-22 19:35:47 +0200
commit40c0f755c998d2615fe8466aab20c6d81bd463e7 (patch)
tree51fcb08ba1bd3f745ceb43fd5f814a5700079881 /deps/v8/src/d8-debug.h
parenta93cf503073ba0258c55dec4dc325bdc1509b739 (diff)
downloadnode-new-40c0f755c998d2615fe8466aab20c6d81bd463e7.tar.gz
import full versions of dependency libraries!
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+// Copyright 2008 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following
+// disclaimer in the documentation and/or other materials provided
+// with the distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef V8_D8_DEBUG_H_
+#define V8_D8_DEBUG_H_
+
+
+#include "d8.h"
+#include "debug.h"
+
+
+namespace v8 {
+
+
+void HandleDebugEvent(DebugEvent event,
+ Handle<Object> exec_state,
+ Handle<Object> event_data,
+ Handle<Value> data);
+
+// Start the remove debugger connecting to a V8 debugger agent on the specified
+// port.
+void RunRemoteDebugger(int port);
+
+// Forward declerations.
+class RemoteDebuggerEvent;
+class ReceiverThread;
+
+
+// Remote debugging class.
+class RemoteDebugger {
+ public:
+ explicit RemoteDebugger(int port)
+ : port_(port),
+ event_access_(i::OS::CreateMutex()),
+ event_available_(i::OS::CreateSemaphore(0)),
+ head_(NULL), tail_(NULL) {}
+ void Run();
+
+ // Handle events from the subordinate threads.
+ void MessageReceived(i::SmartPointer<char> message);
+ void KeyboardCommand(i::SmartPointer<char> command);
+ void ConnectionClosed();
+
+ private:
+ // Add new debugger event to the list.
+ void AddEvent(RemoteDebuggerEvent* event);
+ // Read next debugger event from the list.
+ RemoteDebuggerEvent* GetEvent();
+
+ // Handle a message from the debugged V8.
+ void HandleMessageReceived(char* message);
+ // Handle a keyboard command.
+ void HandleKeyboardCommand(char* command);
+
+ // Get connection to agent in debugged V8.
+ i::Socket* conn() { return conn_; }
+
+ int port_; // Port used to connect to debugger V8.
+ i::Socket* conn_; // Connection to debugger agent in debugged V8.
+
+ // Linked list of events from debugged V8 and from keyboard input. Access to
+ // the list is guarded by a mutex and a semaphore signals new items in the
+ // list.
+ i::Mutex* event_access_;
+ i::Semaphore* event_available_;
+ RemoteDebuggerEvent* head_;
+ RemoteDebuggerEvent* tail_;
+
+ friend class ReceiverThread;
+};
+
+
+// Thread reading from debugged V8 instance.
+class ReceiverThread: public i::Thread {
+ public:
+ explicit ReceiverThread(RemoteDebugger* remote_debugger)
+ : remote_debugger_(remote_debugger) {}
+ ~ReceiverThread() {}
+
+ void Run();
+
+ private:
+ RemoteDebugger* remote_debugger_;
+};
+
+
+// Thread reading keyboard input.
+class KeyboardThread: public i::Thread {
+ public:
+ explicit KeyboardThread(RemoteDebugger* remote_debugger)
+ : remote_debugger_(remote_debugger) {}
+ ~KeyboardThread() {}
+
+ void Run();
+
+ private:
+ RemoteDebugger* remote_debugger_;
+};
+
+
+// Events processed by the main deubgger thread.
+class RemoteDebuggerEvent {
+ public:
+ RemoteDebuggerEvent(int type, i::SmartPointer<char> data)
+ : type_(type), data_(data), next_(NULL) {
+ ASSERT(type == kMessage || type == kKeyboard || type == kDisconnect);
+ }
+
+ static const int kMessage = 1;
+ static const int kKeyboard = 2;
+ static const int kDisconnect = 3;
+
+ int type() { return type_; }
+ char* data() { return *data_; }
+
+ private:
+ void set_next(RemoteDebuggerEvent* event) { next_ = event; }
+ RemoteDebuggerEvent* next() { return next_; }
+
+ int type_;
+ i::SmartPointer<char> data_;
+ RemoteDebuggerEvent* next_;
+
+ friend class RemoteDebugger;
+};
+
+
+} // namespace v8
+
+
+#endif // V8_D8_DEBUG_H_