From 3a987356f782b441aa0e05696aebdf3d910478b8 Mon Sep 17 00:00:00 2001
From: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Date: Mon, 20 Mar 2017 02:38:41 +0100
Subject: [PATCH] Include SIGINT handler to properly stop model when aborted by
 CTRL+C.

Enhancement based on change done by Constantin Wiesener
in daqbeagle project.

Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
---
 ert_linux/ert_linux_main.tlc | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/ert_linux/ert_linux_main.tlc b/ert_linux/ert_linux_main.tlc
index 418d20c..30943c2 100644
--- a/ert_linux/ert_linux_main.tlc
+++ b/ert_linux/ert_linux_main.tlc
@@ -32,6 +32,7 @@
   #include <stdbool.h>
   #include <unistd.h>
   #include <sys/mman.h>                  /* For mlockall() */
+  #include <signal.h>
   #include "%<modelName>.h"              /* Model's header file */
   #include "rtwtypes.h"                  /* MathWorks types */
   %if extMode == 1
@@ -224,6 +225,14 @@
     return NULL;
   }
 
+  /**
+   * Signal handler for ABORT during simulation
+   */
+  void abort_signal_handler(int sig) {
+    fprintf(stderr, "Simulation aborted by pressing CTRL+C\n");
+    rtmSetStopRequested(%<modelName>_M, 1);
+  }
+
   /**
    * This is the main function of the model.
    * Multirate - Multitasking case main file
@@ -282,6 +291,9 @@
     %if extMode == 1
       /* External mode */
       CHECKE(sem_wait(&ext_mode_ready));
+
+      signal(SIGINT, abort_signal_handler); /* important for letting the destructor be called. */
+
       while(rtmGetErrorStatus(%<modelName>_M) == NULL && !rtmGetStopRequested(%<modelName>_M)) {
         rtExtModeOneStep(rtmGetRTWExtModeInfo(RT_MDL), NUMST, (boolean_T *)&rtmGetStopRequested(RT_MDL));
 	usleep(%<FEVAL("uint32", fundamentalStepSize * 1000000)>);
-- 
2.39.2