From 2a6f19763c3deda04bdb83f1cf0406549dc0039d Mon Sep 17 00:00:00 2001
From: Jacek Jendrzej <overx300@gmail.com>
Date: Wed, 27 Oct 2021 21:28:50 +0200
Subject: [PATCH] scanait: another ait segfault fix

Origin commit data
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Branch: ni/coolstream
Commit: https://github.com/neutrino-images/ni-neutrino/commit/48a03894d1ba20c0a0ede1cb2429d2006a82fe56
Author: Jacek Jendrzej <overx300@gmail.com>
Date: 2021-10-27 (Wed, 27 Oct 2021)


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No further description and justification available within origin commit message!

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This commit was generated by Migit
---
 src/zapit/include/zapit/scanait.h |  1 +
 src/zapit/src/scanait.cpp         | 16 +++++++++++-----
 2 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/src/zapit/include/zapit/scanait.h b/src/zapit/include/zapit/scanait.h
index cb28e94e9..fafcdec3a 100644
--- a/src/zapit/include/zapit/scanait.h
+++ b/src/zapit/include/zapit/scanait.h
@@ -44,6 +44,7 @@ class CAit : public OpenThreads::Thread
 private:
 	int dmxnum;
 	unsigned short pid;
+	bool running;
 	std::string name;
 	ApplicationInformationSectionList sections;
 	void run();
diff --git a/src/zapit/src/scanait.cpp b/src/zapit/src/scanait.cpp
index 375250f43..a212e9002 100644
--- a/src/zapit/src/scanait.cpp
+++ b/src/zapit/src/scanait.cpp
@@ -41,6 +41,7 @@ CAit::CAit()
 {
 	dmxnum = 0;
 	pid = 0;
+	running = false;
 }
 
 void CAit::setDemux(int dnum)
@@ -50,17 +51,22 @@ void CAit::setDemux(int dnum)
 
 bool CAit::Start()
 {
+	if (running)
+		return false;
+	running = true;
+
 	int ret = start();
 	return (ret == 0);
 }
 
 bool CAit::Stop()
 {
-	if(pid > 0){
-		int ret = join();
-		return (ret == 0);
-	}
-	return false;
+	if (!running)
+		return false;
+	running = false;
+
+	int ret = join();
+	return (ret == 0);
 }
 
 void CAit::run()