main: quit on SIGINT

[pulseview.git] / main.cpp

diff --git a/main.cpp b/main.cpp
index 98fc9ad5949c3b7d79bc4f0e6edf52d1d4f9eb3e..54a69fd75550eb3485861bd471d27f6e2d6497a7 100644 (file)
--- a/main.cpp
+++ b/main.cpp
@@ -20,6 +20,7 @@
 
 extern "C" {
 #include <sigrokdecode.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */
+#include <signal.h>
 #include <stdint.h>
 #include <libsigrok/libsigrok.h>
 }
@@ -33,6 +34,8 @@ extern "C" {
 
 #include "config.h"
 
+// Global pointer to our QApplication
+QApplication *g_app = NULL;
 void usage()
 {
        fprintf(stderr,
@@ -45,12 +48,30 @@ void usage()
                "\n", PV_BIN_NAME, PV_DESCRIPTION);
 }
 
+/*
+ * SIGINT handler (likely recieved Ctrl-C from terminal)
+ */
+void sigint(int param)
+{
+       (void) param;
+
+       qDebug("pv: Recieved SIGINT");
+
+       if (g_app)
+               g_app->quit();
+}
+
 int main(int argc, char *argv[])
 {
        int ret = 0;
        struct sr_context *sr_ctx = NULL;
 
+       // Register a SIGINT handler
+       signal (SIGINT, sigint);
+
        QApplication a(argc, argv);
+       // Now we have an application to populate our global pointer
+       g_app = &a;
 
        // Set some application metadata
        QApplication::setApplicationVersion(PV_VERSION_STRING);
@@ -60,8 +81,8 @@ int main(int argc, char *argv[])
        // Parse arguments
        while (1) {
                static const struct option long_options[] = {
-                       {"version", no_argument, 0,  'V'},
-                       {"help", no_argument, 0,  'h'},
+                       {"version", no_argument, 0, 'V'},
+                       {"help", no_argument, 0, 'h'},
                        {0, 0, 0, 0}
                };
 
@@ -106,7 +127,7 @@ int main(int argc, char *argv[])
                        }
                }
 
-               if(ret == 0) {
+               if (ret == 0) {
                        // Initialise the main window
                        pv::MainWindow w;
                        w.show();