22b6de6a70
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@48723 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
149 lines
4.3 KiB
C++
149 lines
4.3 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: src/common/fdiodispatcher.cpp
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// Purpose: Implementation of common wxFDIODispatcher methods
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// Author: Vadim Zeitlin
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// Created: 2007-05-13
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// RCS-ID: $Id$
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// Copyright: (c) 2007 Vadim Zeitlin <vadim@wxwindows.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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// for compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#include "wx/module.h"
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#endif //WX_PRECOMP
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#include "wx/private/fdiodispatcher.h"
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#include "wx/private/selectdispatcher.h"
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#ifdef __UNIX__
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#include "wx/unix/private/epolldispatcher.h"
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#endif
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wxFDIODispatcher *gs_dispatcher = NULL;
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// ============================================================================
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// implementation
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// ============================================================================
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// ----------------------------------------------------------------------------
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// wxFDIODispatcher
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// ----------------------------------------------------------------------------
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/* static */
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wxFDIODispatcher *wxFDIODispatcher::Get()
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{
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if ( !gs_dispatcher )
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{
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#if wxUSE_EPOLL_DISPATCHER
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gs_dispatcher = wxEpollDispatcher::Create();
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if ( !gs_dispatcher )
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#endif // wxUSE_EPOLL_DISPATCHER
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#if wxUSE_SELECT_DISPATCHER
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gs_dispatcher = wxSelectDispatcher::Create();
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#endif // wxUSE_SELECT_DISPATCHER
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}
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wxASSERT_MSG( gs_dispatcher, _T("failed to create any IO dispatchers") );
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return gs_dispatcher;
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}
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/* static */
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void wxFDIODispatcher::DispatchPending()
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{
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if ( gs_dispatcher )
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gs_dispatcher->Dispatch(0);
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}
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// ----------------------------------------------------------------------------
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// wxMappedFDIODispatcher
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// ----------------------------------------------------------------------------
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wxFDIOHandler *wxMappedFDIODispatcher::FindHandler(int fd) const
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{
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const wxFDIOHandlerMap::const_iterator it = m_handlers.find(fd);
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return it == m_handlers.end() ? NULL : it->second.handler;
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}
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bool wxMappedFDIODispatcher::RegisterFD(int fd, wxFDIOHandler *handler, int flags)
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{
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wxUnusedVar(flags);
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wxCHECK_MSG( handler, false, _T("handler can't be NULL") );
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// notice that it's not an error to register a handler for the same fd
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// twice as it can be done with different flags -- but it is an error to
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// register different handlers
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wxFDIOHandlerMap::iterator i = m_handlers.find(fd);
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if ( i != m_handlers.end() )
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{
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wxASSERT_MSG( i->second.handler == handler,
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_T("registering different handler for the same fd?") );
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wxASSERT_MSG( i->second.flags != flags,
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_T("reregistering with the same flags?") );
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}
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m_handlers[fd] = wxFDIOHandlerEntry(handler, flags);
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return true;
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}
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bool wxMappedFDIODispatcher::ModifyFD(int fd, wxFDIOHandler *handler, int flags)
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{
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wxUnusedVar(flags);
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wxCHECK_MSG( handler, false, _T("handler can't be NULL") );
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wxFDIOHandlerMap::iterator i = m_handlers.find(fd);
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wxCHECK_MSG( i != m_handlers.end(), false,
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_T("modifying unregistered handler?") );
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i->second = wxFDIOHandlerEntry(handler, flags);
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return true;
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}
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bool wxMappedFDIODispatcher::UnregisterFD(int fd)
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{
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wxFDIOHandlerMap::iterator i = m_handlers.find(fd);
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if ( i == m_handlers.end() )
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return false;
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m_handlers.erase(i);
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return true;
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}
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// ----------------------------------------------------------------------------
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// wxSelectDispatcherModule
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// ----------------------------------------------------------------------------
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class wxFDIODispatcherModule : public wxModule
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{
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public:
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virtual bool OnInit() { return true; }
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virtual void OnExit() { wxDELETE(gs_dispatcher); }
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private:
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DECLARE_DYNAMIC_CLASS(wxFDIODispatcherModule)
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};
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IMPLEMENT_DYNAMIC_CLASS(wxFDIODispatcherModule, wxModule)
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