+///////////////////////////////////////////////////////////////////////////////
+// Name: src/unix/fdiounix.cpp
+// Purpose: wxFDIOManager implementation for console Unix applications
+// Author: Vadim Zeitlin
+// Created: 2009-08-17
+// RCS-ID: $Id: wxhead.cpp,v 1.10 2009-06-29 10:23:04 zeitlin Exp $
+// Copyright: (c) 2009 Vadim Zeitlin <vadim@wxwidgets.org>
+// Licence: wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+// for compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+ #pragma hdrstop
+#endif
+
+#include "wx/apptrait.h"
+#include "wx/private/fdiodispatcher.h"
+#include "wx/unix/private/fdiounix.h"
+
+// ============================================================================
+// wxFDIOManagerUnix implementation
+// ============================================================================
+
+int wxFDIOManagerUnix::AddInput(wxFDIOHandler *handler, int fd, Direction d)
+{
+ wxFDIODispatcher * const dispatcher = wxFDIODispatcher::Get();
+ wxCHECK_MSG( dispatcher, -1, "can't monitor FDs without FD IO dispatcher" );
+
+ // translate our direction to dispatcher flags
+ const int flag = d == INPUT ? wxFDIO_INPUT : wxFDIO_OUTPUT;
+
+ // we need to either register this FD with the dispatcher or update an
+ // existing registration depending on whether it had been previously
+ // registered for anything or not
+ bool ok;
+ const int regmask = handler->GetRegisteredEvents();
+ if ( !regmask )
+ {
+ ok = dispatcher->RegisterFD(fd, handler, flag);
+ }
+ else
+ {
+ ok = dispatcher->ModifyFD(fd, handler, regmask | flag);
+ }
+
+ if ( !ok )
+ return -1;
+
+ // update the stored mask of registered events
+ handler->SetRegisteredEvent(flag);
+
+ return fd;
+}
+
+void wxFDIOManagerUnix::RemoveInput(wxFDIOHandler *handler, int fd, Direction d)
+{
+ wxFDIODispatcher * const dispatcher = wxFDIODispatcher::Get();
+ if ( !dispatcher )
+ return;
+
+ const int flag = d == INPUT ? wxFDIO_INPUT : wxFDIO_OUTPUT;
+
+ // just as in AddInput() above we may need to either just modify the FD or
+ // remove it completely if we don't need to monitor it any more
+ bool ok;
+ const int regmask = handler->GetRegisteredEvents();
+ if ( regmask == flag )
+ {
+ ok = dispatcher->UnregisterFD(fd);
+ }
+ else
+ {
+ ok = dispatcher->ModifyFD(fd, handler, regmask & ~flag);
+ }
+
+ if ( !ok )
+ {
+ wxLogDebug("Failed to unregister %d in direction %d", fd, d);
+ }
+
+ // do this even after a failure to unregister it, we still tried...
+ handler->ClearRegisteredEvent(flag);
+}
+
+wxFDIOManager *wxAppTraits::GetFDIOManager()
+{
+ static wxFDIOManagerUnix s_manager;
+ return &s_manager;
+}
+
projects / wxWidgets.git / commitdiff
