ardour/libs/glibmm2/gio/src/inputstream.ccg

// -*- Mode: C++; indent-tabs-mode: nil; c-basic-offset: 2 -*-

/* Copyright (C) 2007 The giomm Development Team
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <gio/gio.h>
#include <giomm/asyncresult.h>
#include "slot_async.h"

namespace Gio
{

#ifdef GLIBMM_EXCEPTIONS_ENABLED
gssize InputStream::read(void* buffer, gsize count)
#else
gssize InputStream::read(void* buffer, gsize count, std::auto_ptr<Glib::Error>& error)
#endif //GLIBMM_EXCEPTIONS_ENABLED
{
  GError* gerror = 0;
  gssize retvalue = g_input_stream_read(gobj(), buffer, count, NULL, &(gerror));
#ifdef GLIBMM_EXCEPTIONS_ENABLED
  if(gerror)
    ::Glib::Error::throw_exception(gerror);
#else
  if(gerror)
    error = ::Glib::Error::throw_exception(gerror);
#endif //GLIBMM_EXCEPTIONS_ENABLED

  return retvalue;
}


#ifdef GLIBMM_EXCEPTIONS_ENABLED
bool InputStream::read_all(void* buffer, gsize count, gsize& bytes_read)
#else
bool InputStream::read_all(void* buffer, gsize count, gsize& bytes_read, std::auto_ptr<Glib::Error>& error)
#endif //GLIBMM_EXCEPTIONS_ENABLED
{
  GError* gerror = 0;
  bool retvalue = g_input_stream_read_all(gobj(), buffer, count, &(bytes_read), NULL, &(gerror));
#ifdef GLIBMM_EXCEPTIONS_ENABLED
  if(gerror)
    ::Glib::Error::throw_exception(gerror);
#else
  if(gerror)
    error = ::Glib::Error::throw_exception(gerror);
#endif //GLIBMM_EXCEPTIONS_ENABLED

  return retvalue;
}

#ifdef GLIBMM_EXCEPTIONS_ENABLED
gssize InputStream::skip(gsize count)
#else
gssize InputStream::skip(gsize count, std::auto_ptr<Glib::Error>& error)
#endif //GLIBMM_EXCEPTIONS_ENABLED
{
  GError* gerror = 0;
  gssize retvalue = g_input_stream_skip(gobj(), count, NULL, &(gerror));
#ifdef GLIBMM_EXCEPTIONS_ENABLED
  if(gerror)
    ::Glib::Error::throw_exception(gerror);
#else
  if(gerror)
    error = ::Glib::Error::throw_exception(gerror);
#endif //GLIBMM_EXCEPTIONS_ENABLED

  return retvalue;
}

#ifdef GLIBMM_EXCEPTIONS_ENABLED
bool InputStream::close()
#else
bool InputStream::close(std::auto_ptr<Glib::Error>& error)
#endif //GLIBMM_EXCEPTIONS_ENABLED
{
  GError* gerror = 0;
  bool retvalue = g_input_stream_close(gobj(), NULL, &(gerror));
#ifdef GLIBMM_EXCEPTIONS_ENABLED
  if(gerror)
    ::Glib::Error::throw_exception(gerror);
#else
  if(gerror)
    error = ::Glib::Error::throw_exception(gerror);
#endif //GLIBMM_EXCEPTIONS_ENABLED

  return retvalue;
}

void
InputStream::read_async(void* buffer, gsize count, const SlotAsyncReady& slot, const Glib::RefPtr<Cancellable>& cancellable, int io_priority)
{
  // Create a copy of the slot.
  // A pointer to it will be passed through the callback's data parameter
  // and deleted in the callback.
  SlotAsyncReady* slot_copy = new SlotAsyncReady(slot);

  g_input_stream_read_async(gobj(),
                            buffer,
                            count,
                            io_priority,
                            cancellable->gobj(),
                            &SignalProxy_async_callback,
                            slot_copy);
}

void
InputStream::read_async(void* buffer, gsize count, const SlotAsyncReady& slot, int io_priority)
{
  // Create a copy of the slot.
  // A pointer to it will be passed through the callback's data parameter
  // and deleted in the callback.
  SlotAsyncReady* slot_copy = new SlotAsyncReady(slot);

  g_input_stream_read_async(gobj(),
                            buffer,
                            count,
                            io_priority,
                            NULL,
                            &SignalProxy_async_callback,
                            slot_copy);
}


void
InputStream::skip_async(gsize count, const SlotAsyncReady& slot, const Glib::RefPtr<Cancellable>& cancellable, int io_priority)
{
  // Create a copy of the slot.
  // A pointer to it will be passed through the callback's data parameter
  // and deleted in the callback.
  SlotAsyncReady* slot_copy = new SlotAsyncReady(slot);

  g_input_stream_skip_async(gobj(),
                            count,
                            io_priority,
                            cancellable->gobj(),
                            &SignalProxy_async_callback,
                            slot_copy);
}

void
InputStream::skip_async(gsize count, const SlotAsyncReady& slot, int io_priority)
{
  // Create a copy of the slot.
  // A pointer to it will be passed through the callback's data parameter
  // and deleted in the callback.
  SlotAsyncReady* slot_copy = new SlotAsyncReady(slot);

  g_input_stream_skip_async(gobj(),
                            count,
                            io_priority,
                            NULL,
                            &SignalProxy_async_callback,
                            slot_copy);
}

void
InputStream::close_async(const SlotAsyncReady& slot, const Glib::RefPtr<Cancellable>& cancellable, int io_priority)
{
  // Create a copy of the slot.
  // A pointer to it will be passed through the callback's data parameter
  // and deleted in the callback.
  SlotAsyncReady* slot_copy = new SlotAsyncReady(slot);

  g_input_stream_close_async(gobj(),
                             io_priority,
                             cancellable->gobj(),
                             &SignalProxy_async_callback,
                             slot_copy);
}

void
InputStream::close_async(const SlotAsyncReady& slot, int io_priority)
{
  // Create a copy of the slot.
  // A pointer to it will be passed through the callback's data parameter
  // and deleted in the callback.
  SlotAsyncReady* slot_copy = new SlotAsyncReady(slot);

  g_input_stream_close_async(gobj(),
                             io_priority,
                             NULL,
                             &SignalProxy_async_callback,
                             slot_copy);
}


} // namespace Gio