From fa6ed0ca1fe8b127bd61a206a2746c1275879e8c Mon Sep 17 00:00:00 2001
From: folkert van heusden <mail@vanheusden.com>
Date: Tue, 22 Mar 2022 17:30:24 +0100
Subject: [PATCH] ESP32 console

---
 ESP32/console_esp32.cpp | 2 +-
 ESP32/console_esp32.h   | 4 ++--
 console.cpp             | 7 +++++--
 3 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/ESP32/console_esp32.cpp b/ESP32/console_esp32.cpp
index 27fd0e7..8c6e433 100644
--- a/ESP32/console_esp32.cpp
+++ b/ESP32/console_esp32.cpp
@@ -26,7 +26,7 @@ int console_esp32::wait_for_char(const int timeout)
 	return -1;
 }
 
-void console_esp32::put_char(const char c)
+void console_esp32::put_char_ll(const char c)
 {
 	Serial.print(c);
 }
diff --git a/ESP32/console_esp32.h b/ESP32/console_esp32.h
index 0b48a30..5c2f6e0 100644
--- a/ESP32/console_esp32.h
+++ b/ESP32/console_esp32.h
@@ -8,11 +8,11 @@ class console_esp32 : public console
 protected:
 	int wait_for_char(const int timeout) override;
 
+	void put_char_ll(const char c) override;
+
 public:
 	console_esp32(std::atomic_bool *const terminate);
 	virtual ~console_esp32();
 
-	void put_char(const char c) override;
-
 	void resize_terminal() override;
 };
diff --git a/console.cpp b/console.cpp
index 4212dc6..e749638 100644
--- a/console.cpp
+++ b/console.cpp
@@ -1,5 +1,6 @@
 #include <stdarg.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string>
 #include <string.h>
 
@@ -17,9 +18,11 @@ console::console(std::atomic_bool *const terminate) :
 
 console::~console()
 {
-	th->join();
+	if (th) {
+		th->join();
 
-	delete th;
+		delete th;
+	}
 }
 
 bool console::poll_char()