tcp_timeout_monitor deadlock fix (#8783)

rpcs3/Emu/Cell/lv2/sys_net.cpp

@@ -306,6 +306,9 @@ class tcp_timeout_monitor
 			else
 				wakey.wait(lock);
 
+			if (abort)
+				return;
+
 			const auto now = std::chrono::system_clock::now();
 			// Check for messages that haven't been acked
 			std::set<s32> rtt_increased;
@@ -371,6 +374,7 @@ class tcp_timeout_monitor
 public:
 	std::condition_variable wakey;
 	static constexpr auto thread_name = "Tcp Over Udp Timeout Manager Thread"sv;
+	std::atomic<bool> abort = false;
 
 private:
 	std::mutex data_mutex;
@@ -835,6 +839,7 @@ struct network_thread
 		WSACleanup();
 #endif
 		auto tcpm = g_fxo->get<named_thread<tcp_timeout_monitor>>();
+		tcpm->abort = true;
 		tcpm->wakey.notify_one();
 	}
 

rpcs3/Emu/NP/rpcn_client.cpp

@@ -52,10 +52,10 @@ rpcn_client::~rpcn_client()
 
 std::string rpcn_client::get_wolfssl_error(int error)
 {
-	std::string error_string(80, '\0');
+	char error_string[80]{};
 	auto wssl_err = wolfSSL_get_error(wssl, error);
 	wolfSSL_ERR_error_string(wssl_err, &error_string[0]);
-	return error_string;
+	return std::string(error_string);
 }
 
 void rpcn_client::disconnect()