* supplied TCP/IP port for remote debugger connection.
* \param name the name of the embedding application
* \param port the TCP/IP port to listen on
+ * \param wait_for_connection whether V8 should pause on a first breakpoint
+ * allowing remote debugger to connect before anything interesting happened
*/
- static bool EnableAgent(const char* name, int port);
+ static bool EnableAgent(const char* name, int port,
+ bool wait_for_connection = false);
};
}
-bool Debug::EnableAgent(const char* name, int port) {
- return i::Debugger::StartAgent(name, port);
+bool Debug::EnableAgent(const char* name, int port, bool wait_for_connection) {
+ return i::Debugger::StartAgent(name, port, wait_for_connection);
}
#endif // ENABLE_DEBUGGER_SUPPORT
}
-bool Debugger::StartAgent(const char* name, int port) {
+static void StubMessageHandler2(const v8::Debug::Message& message) {
+ // Simply ignore message.
+}
+
+
+bool Debugger::StartAgent(const char* name, int port,
+ bool wait_for_connection) {
+ if (wait_for_connection) {
+ // Suspend V8 if it is already running or set V8 to suspend whenever
+ // it starts.
+ // Provide stub message handler; V8 auto-continues each suspend
+ // when there is no message handler; we doesn't need it.
+ // Once become suspended, V8 will stay so indefinitely long, until remote
+ // debugger connects and issues "continue" command.
+ Debugger::message_handler_ = StubMessageHandler2;
+ v8::Debug::DebugBreak();
+ }
+
if (Socket::Setup()) {
agent_ = new DebuggerAgent(name, port);
agent_->Start();
bool* pending_exception);
// Start the debugger agent listening on the provided port.
- static bool StartAgent(const char* name, int port);
+ static bool StartAgent(const char* name, int port, bool wait_for_connection);
// Stop the debugger agent.
static void StopAgent();