fix bug with not updating the last line correctly when a group was deleted and recrea...

[wxWidgets.git] / src / common / gsocketiohandler.cpp

///////////////////////////////////////////////////////////////////////////////
// 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