From 71ef5532d9777e9511bc982cab33e3d2d95cf4be Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Wed, 23 Jan 2019 10:17:21 +0200
Subject: cam: Add event loop
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Add a simple event loop to the cam application and use it in the main()
function, with an example of how to handle SIGINT to gracefully stop the
loop.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
---
 src/cam/main.cpp | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

(limited to 'src/cam/main.cpp')

diff --git a/src/cam/main.cpp b/src/cam/main.cpp
index 0d37039f..cb98d302 100644
--- a/src/cam/main.cpp
+++ b/src/cam/main.cpp
@@ -7,10 +7,12 @@
 
 #include <iostream>
 #include <map>
+#include <signal.h>
 #include <string.h>
 
 #include <libcamera/libcamera.h>
 
+#include "event_loop.h"
 #include "options.h"
 
 using namespace libcamera;
@@ -23,6 +25,14 @@ enum {
 	OptList = 'l',
 };
 
+EventLoop *loop;
+
+void signalHandler(int signal)
+{
+	std::cout << "Exiting" << std::endl;
+	loop->exit();
+}
+
 static int parseOptions(int argc, char *argv[])
 {
 	OptionsParser parser;
@@ -79,7 +89,17 @@ int main(int argc, char **argv)
 		}
 	}
 
+	loop = new EventLoop(cm->eventDispatcher());
+
+	struct sigaction sa = {};
+	sa.sa_handler = &signalHandler;
+	sigaction(SIGINT, &sa, nullptr);
+
+	ret = loop->exec();
+
+	delete loop;
+
 	cm->stop();
 
-	return 0;
+	return ret;
 }
-- 
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