From dc4f96affbf40dc9745644b08fe4dc4d02d7117f Mon Sep 17 00:00:00 2001
From: EricLiu2000 <ericxliu@gmail.com>
Date: Wed, 12 Jun 2019 17:28:56 -0400
Subject: [PATCH] Commands can now only be sent when the device is open

---
 communication/icommunication.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/communication/icommunication.cpp b/communication/icommunication.cpp
index 926c0ae..f927c45 100644
--- a/communication/icommunication.cpp
+++ b/communication/icommunication.cpp
@@ -39,6 +39,11 @@ bool ICommunication::readWait(std::vector<uint8_t>& bytes, std::chrono::millisec
 }
 
 bool ICommunication::write(const std::vector<uint8_t>& bytes) {
+	if(!isOpen()) {
+		err(APIError::DeviceCurrentlyClosed);
+		return false;
+	}
+
 	if(writeBlocks) {
 		std::unique_lock<std::mutex> lk(writeMutex);
 		if(writeQueue.size_approx() > writeQueueSize) {