zdoom-macos-deps/deps/wxwidgets/include/wx-3.1/wx/unix/app.h
2021-06-28 10:54:57 +03:00

73 lines
2.7 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// 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>
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) wxOVERRIDE;
// 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
WX_DECLARE_HASH_MAP(int, SignalHandler, wxIntegerHash, wxIntegerEqual, SignalHandlerHash);
SignalHandlerHash 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;
};