refactoring: replace wxSocketDispatcher with more generic wxSelectDispatcher (patch 1618976)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@44855 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/gsocketiohandler.cpp

@@ -0,0 +1,199 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        src/common/gsocketiohandler.cpp
+// Purpose:     implementation of wxFDIOHandler for GSocket
+// Author:      Angel Vidal, Lukasz Michalski
+// Modified by:
+// Created:     08.24.06
+// RCS-ID:      $Id$
+// Copyright:   (c) 2006 Angel vidal
+// License:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+// for compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#if wxUSE_SOCKETS
+
+#include "wx/private/gsocketiohandler.h"
+#include "wx/unix/private.h"
+#include "wx/gsocket.h"
+#include "wx/unix/gsockunx.h"
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// wxGSocketIOHandler
+// ----------------------------------------------------------------------------
+
+wxGSocketIOHandler::wxGSocketIOHandler(GSocket* socket) 
+                  : m_socket(socket),
+                    m_flags(0)
+{
+
+};
+
+void wxGSocketIOHandler::OnReadWaiting(int fd)
+{
+    m_socket->Detected_Read();
+};
+
+void wxGSocketIOHandler::OnWriteWaiting(int fd) 
+{
+    m_socket->Detected_Write();
+};
+
+void wxGSocketIOHandler::OnExceptionWaiting(int fd) 
+{
+    m_socket->Detected_Read();
+};
+
+int wxGSocketIOHandler::GetFlags() const 
+{
+    return m_flags;
+};
+
+
+void wxGSocketIOHandler::RemoveFlag(wxSelectDispatcherEntryFlags flag)
+{
+    m_flags &= ~flag;
+};
+
+void wxGSocketIOHandler::AddFlag(wxSelectDispatcherEntryFlags flag)
+{
+    m_flags |= flag;
+};
+
+// ----------------------------------------------------------------------------
+// GSocket interface
+// ----------------------------------------------------------------------------
+
+bool GSocketGUIFunctionsTableConcrete::CanUseEventLoop()
+{
+    return true;
+}
+
+bool GSocketGUIFunctionsTableConcrete::OnInit()
+{
+    return true;
+}
+
+void GSocketGUIFunctionsTableConcrete::OnExit()
+{
+}
+
+bool GSocketGUIFunctionsTableConcrete::Init_Socket(GSocket *socket)
+{
+  int *m_id;
+
+  socket->m_gui_dependent = (char *)malloc(sizeof(int)*2);
+  m_id = (int *)(socket->m_gui_dependent);
+
+  m_id[0] = -1;
+  m_id[1] = -1;
+
+  return true;
+}
+
+void GSocketGUIFunctionsTableConcrete::Destroy_Socket(GSocket *socket)
+{
+  free(socket->m_gui_dependent);
+}
+
+void GSocketGUIFunctionsTableConcrete::Install_Callback(GSocket *socket,
+                                                        GSocketEvent event)
+{
+  int *m_id = (int *)(socket->m_gui_dependent);
+  int c;
+
+  if (socket->m_fd == -1)
+    return;
+
+  switch (event)
+  {
+    case GSOCK_LOST:       /* fall-through */
+    case GSOCK_INPUT:      c = 0; break;
+    case GSOCK_OUTPUT:     c = 1; break;
+    case GSOCK_CONNECTION: c = ((socket->m_server) ? 0 : 1); break;
+    default: return;
+  }
+
+  wxGSocketIOHandler* handler = (wxGSocketIOHandler*)(wxSelectDispatcher::Get().FindHandler(socket->m_fd));
+  if (handler == NULL)
+  {
+      handler = new wxGSocketIOHandler(socket);
+  };
+
+  if (c == 0)
+  {
+      m_id[0] = socket->m_fd;
+      handler->AddFlag(wxSelectInput);
+  }
+  else
+  {
+      m_id[1] = socket->m_fd;
+      handler->AddFlag(wxSelectOutput);
+  }
+
+  wxSelectDispatcher::Get().RegisterFD(socket->m_fd,handler,handler->GetFlags());
+}
+
+void GSocketGUIFunctionsTableConcrete::Uninstall_Callback(GSocket *socket,
+                                                          GSocketEvent event)
+{
+  int *m_id = (int *)(socket->m_gui_dependent);
+  int c;
+
+  switch (event)
+  {
+    case GSOCK_LOST:       /* fall-through */
+    case GSOCK_INPUT:      c = 0; break;
+    case GSOCK_OUTPUT:     c = 1; break;
+    case GSOCK_CONNECTION: c = ((socket->m_server) ? 0 : 1); break;
+    default: return;
+  }
+
+  wxGSocketIOHandler* handler = NULL;
+  if ( m_id[c] != -1 )
+  {
+      if ( c == 0 )
+      {
+          handler = (wxGSocketIOHandler*)wxSelectDispatcher::Get().UnregisterFD(m_id[c], wxSelectInput);
+          if (handler != NULL)
+              handler->RemoveFlag(wxSelectInput);
+      }
+      else
+      {
+          handler = (wxGSocketIOHandler*)wxSelectDispatcher::Get().UnregisterFD(m_id[c], wxSelectOutput);
+          if (handler != NULL)
+              handler->RemoveFlag(wxSelectOutput);
+      }
+      if (handler && handler->GetFlags() == 0)
+          delete handler;
+  }
+
+  m_id[c] = -1;
+}
+
+void GSocketGUIFunctionsTableConcrete::Enable_Events(GSocket *socket)
+{
+  Install_Callback(socket, GSOCK_INPUT);
+  Install_Callback(socket, GSOCK_OUTPUT);
+}
+
+void GSocketGUIFunctionsTableConcrete::Disable_Events(GSocket *socket)
+{
+  Uninstall_Callback(socket, GSOCK_INPUT);
+  Uninstall_Callback(socket, GSOCK_OUTPUT);
+}
+
+#endif // wxUSE_SOCKETS