109 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			109 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/////////////////////////////////////////////////////////////////////////////
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// Name:        wx/unix/private/fswatcher_kqueue.h
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// Purpose:     File system watcher impl classes
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// Author:      Bartosz Bekier
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// Created:     2009-05-26
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// Copyright:   (c) 2009 Bartosz Bekier <bartosz.bekier@gmail.com>
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// Licence:     wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef WX_UNIX_PRIVATE_FSWATCHER_KQUEUE_H_
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#define WX_UNIX_PRIVATE_FSWATCHER_KQUEUE_H_
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#include <fcntl.h>
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#include <unistd.h>
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#include "wx/dir.h"
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#include "wx/debug.h"
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#include "wx/arrstr.h"
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// ============================================================================
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// wxFSWatcherEntry implementation & helper declarations
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// ============================================================================
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class wxFSWatcherImplKqueue;
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class wxFSWatchEntryKq : public wxFSWatchInfo
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{
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public:
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    struct wxDirState
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    {
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        wxDirState(const wxFSWatchInfo& winfo)
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        {
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            if (!wxDir::Exists(winfo.GetPath()))
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                return;
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            wxDir dir(winfo.GetPath());
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            wxCHECK_RET( dir.IsOpened(),
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                  wxString::Format(wxASCII_STR("Unable to open dir '%s'"), winfo.GetPath()));
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            wxString filename;
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            bool ret = dir.GetFirst(&filename);
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            while (ret)
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            {
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                files.push_back(filename);
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                ret = dir.GetNext(&filename);
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            }
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        }
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        wxSortedArrayString files;
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    };
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    wxFSWatchEntryKq(const wxFSWatchInfo& winfo) :
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        wxFSWatchInfo(winfo), m_lastState(winfo)
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    {
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        m_fd = wxOpen(m_path, O_RDONLY, 0);
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        if (m_fd == -1)
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        {
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            wxLogSysError(_("Unable to open path '%s'"), m_path);
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        }
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    }
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    virtual ~wxFSWatchEntryKq()
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    {
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        (void) Close();
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    }
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    bool Close()
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    {
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        if (!IsOk())
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            return false;
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        int ret = close(m_fd);
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        if (ret == -1)
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        {
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            wxLogSysError(_("Unable to close path '%s'"), m_path);
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        }
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        m_fd = -1;
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        return ret != -1;
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    }
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    bool IsOk() const
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    {
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        return m_fd != -1;
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    }
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    int GetFileDescriptor() const
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    {
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        return m_fd;
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    }
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    void RefreshState()
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    {
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        m_lastState = wxDirState(*this);
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    }
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    const wxDirState& GetLastState() const
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    {
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        return m_lastState;
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    }
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private:
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    int m_fd;
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    wxDirState m_lastState;
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    wxDECLARE_NO_COPY_CLASS(wxFSWatchEntryKq);
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};
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#endif /* WX_UNIX_PRIVATE_FSWATCHER_KQUEUE_H_ */
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