Fix hang after Ctrl-C on Windows

The processlauncher must ignore Ctrl-C/Ctrl-Break on Windows.
It will be shut down by its parent process, which is not prepared for
the launcher to suddenly disappear.

Change-Id: I63a9bcf84bafcb874e0165edf5d127d66784f071
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

1 files changed, 14 insertions, 0 deletions

diff --git a/src/libexec/qbs_processlauncher/processlauncher-main.cpp b/src/libexec/qbs_processlauncher/processlauncher-main.cpp
index 9d51c9fa1..4ecc3e660 100644
--- a/src/libexec/qbs_processlauncher/processlauncher-main.cpp
+++ b/src/libexec/qbs_processlauncher/processlauncher-main.cpp
@@ -32,8 +32,22 @@
 #include <QtCore/qcoreapplication.h>
 #include <QtCore/qtimer.h>
 
+#ifdef Q_OS_WIN
+#include <QtCore/qt_windows.h>
+
+BOOL consoleCtrlHandler(DWORD)
+{
+    // Ignore Ctrl-C / Ctrl-Break. Qbs will tell us to exit gracefully.
+    return TRUE;
+}
+#endif
+
 int main(int argc, char *argv[])
 {
+#ifdef Q_OS_WIN
+    SetConsoleCtrlHandler(consoleCtrlHandler, TRUE);
+#endif
+
     QCoreApplication app(argc, argv);
     if (app.arguments().count() != 2) {
         qbs::Internal::logError("Need exactly one argument (path to socket)");