initial commit

Signed-off-by: Peter Siegmund <mars3142@noreply.mars3142.dev>

libs/wxWidgets-3.3.1/include/wx/unix/app.h

@@ -0,0 +1,74 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/unix/app.h
+// Purpose:     wxAppConsole implementation for Unix
+// Author:      Lukasz Michalski
+// Created:     28/01/2005
+// Copyright:   (c) Lukasz Michalski
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+//Ensure that sigset_t is being defined
+#include <signal.h>
+
+#include <unordered_map>
+
+class wxFDIODispatcher;
+class wxFDIOHandler;
+class wxWakeUpPipe;
+
+// wxApp subclass implementing event processing for console applications
+class WXDLLIMPEXP_BASE wxAppConsole : public wxAppConsoleBase
+{
+public:
+    wxAppConsole();
+    virtual ~wxAppConsole();
+
+    // override base class initialization
+    virtual bool Initialize(int& argc, wxChar** argv) override;
+
+
+    // Unix-specific: Unix signal handling
+    // -----------------------------------
+
+    // type of the function which can be registered as signal handler: notice
+    // that it isn't really a signal handler, i.e. it's not subject to the
+    // usual signal handlers constraints, because it is called later from
+    // CheckSignal() and not when the signal really occurs
+    typedef void (*SignalHandler)(int);
+
+    // Set signal handler for the given signal, SIG_DFL or SIG_IGN can be used
+    // instead of a function pointer
+    //
+    // Return true if handler was installed, false on error
+    bool SetSignalHandler(int signal, SignalHandler handler);
+
+    // Check if any Unix signals arrived since the last call and execute
+    // handlers for them
+    void CheckSignal();
+
+    // Register the signal wake up pipe with the given dispatcher.
+    //
+    // This is used by wxExecute(wxEXEC_NOEVENTS) implementation only.
+    //
+    // The pointer to the handler used for processing events on this descriptor
+    // is returned so that it can be deleted when we no longer needed it.
+    wxFDIOHandler* RegisterSignalWakeUpPipe(wxFDIODispatcher& dispatcher);
+
+private:
+    // signal handler set up by SetSignalHandler() for all signals we handle,
+    // it just adds the signal to m_signalsCaught -- the real processing is
+    // done later, when CheckSignal() is called
+    static void HandleSignal(int signal);
+
+
+    // signals for which HandleSignal() had been called (reset from
+    // CheckSignal())
+    sigset_t m_signalsCaught;
+
+    // the signal handlers
+    std::unordered_map<int, SignalHandler> m_signalHandlerHash;
+
+    // pipe used for wake up signal handling: if a signal arrives while we're
+    // blocking for input, writing to this pipe triggers a call to our CheckSignal()
+    wxWakeUpPipe *m_signalWakeUpPipe;
+};