X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b79dfbca98c3b48a954675393c07abfd4eed7dea..6bcc1145fea1fbe4f4fd492199d1482f95fac5fd:/src/unix/fdiounix.cpp?ds=sidebyside

diff --git a/src/unix/fdiounix.cpp b/src/unix/fdiounix.cpp
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+///////////////////////////////////////////////////////////////////////////////
+// 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;
+}
+