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