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

/* Copyright (C) 2007 The gtkmm Development Team
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <giomm/bufferedinputstream.h>
#include <giomm/enums.h>

_DEFS(giomm,gio)
_PINCLUDE(giomm/private/bufferedinputstream_p.h)

namespace Gio
{

/**
 * An implementation of BufferedInputStream that allows for high-level data
 * manipulation of arbitrary data (including binary operations).
 *
 * @ingroup Streams
 *
 * @newin{2,16}
 */
class DataInputStream : public Gio::BufferedInputStream
{
  _CLASS_GOBJECT(DataInputStream, GDataInputStream, G_DATA_INPUT_STREAM, Gio::BufferedInputStream, GBufferedInputStream)

protected:
  _WRAP_CTOR(DataInputStream(const Glib::RefPtr<InputStream>& base_stream), g_data_input_stream_new)

public:

  _WRAP_CREATE(const Glib::RefPtr<InputStream>& base_stream)

  _WRAP_METHOD(void set_byte_order(DataStreamByteOrder order), g_data_input_stream_set_byte_order)
  _WRAP_METHOD(DataStreamByteOrder get_byte_order() const, g_data_input_stream_get_byte_order)
  _WRAP_METHOD(void set_newline_type(DataStreamNewlineType type), g_data_input_stream_set_newline_type)
  _WRAP_METHOD(DataStreamNewlineType get_newline_type() const, g_data_input_stream_get_newline_type)

  _WRAP_METHOD(guchar read_byte(const Glib::RefPtr<Cancellable>& cancellable{?}), g_data_input_stream_read_byte, errthrow)

  _WRAP_METHOD(gint16 read_int16(const Glib::RefPtr<Cancellable>& cancellable{?}), g_data_input_stream_read_int16, errthrow)

  _WRAP_METHOD(guint16 read_uint16(const Glib::RefPtr<Cancellable>& cancellable{?}), g_data_input_stream_read_uint16, errthrow)

  _WRAP_METHOD(gint32 read_int32(const Glib::RefPtr<Cancellable>& cancellable{?}), g_data_input_stream_read_int32, errthrow)

  _WRAP_METHOD(guint32 read_uint32(const Glib::RefPtr<Cancellable>& cancellable{?}), g_data_input_stream_read_uint32, errthrow)

  _WRAP_METHOD(gint64 read_int64(const Glib::RefPtr<Cancellable>& cancellable{?}), g_data_input_stream_read_int64, errthrow)

  _WRAP_METHOD(guint64 read_uint64(const Glib::RefPtr<Cancellable>& cancellable{?}), g_data_input_stream_read_uint64, errthrow)

  //Note that we return a bool because we can't use std::string to distinguish between an empty string and a NULL.

  /** Reads a line from the data input stream.
   *
   * The operation can be cancelled by triggering the cancellable object from
   * another thread. If the operation
   * was cancelled, a Gio::Error with CANCELLED will be thrown.
   *
   * @param line A string to fill with the read data (without the newlines).
   * @param cancellable A cancellable object.
   * @result true if the read succeeded without error.
   */
  bool read_line(std::string& line, const Glib::RefPtr<Cancellable>& cancellable);
  _IGNORE(g_data_input_stream_read_line)

  /** A non-cancellable version of read_line().
   *
   * @param line A string to fill with the read data (without the newlines).
   * @result true if the read succeeded without error.
   */
  bool read_line(std::string& line);

// The below initialization is unusual because it stores the return in a 'tmp'
// variable, sets the output parameter and then frees the return.  If this is
// too weird, the methods can probably be just handwritten.
# _INITIALIZATION(`std::string&',`return-char*',`char* tmp = $4; $3 = tmp; g_free(tmp)')

  _WRAP_METHOD(void read_line_utf8(std::string& line{OUT}, const Glib::RefPtr<Cancellable>& cancellable{.?}, gsize& length{.?}), g_data_input_stream_read_line_utf8, errthrow)

  /** The asynchronous version of read_until(). It is
   * an error to have two outstanding calls to this function.
   *
   * @param slot The slot to call when the request is satisfied.
   * @param cancellable A cancellable object.
   * @param io_priority The I/O priority of the request.
   * @result true if the read succeeded without error.
   */
  void read_line_async(const SlotAsyncReady& slot, const Glib::RefPtr<Cancellable>& cancellable, int io_priority = Glib::PRIORITY_DEFAULT);
  _IGNORE(g_data_input_stream_read_line_async)

  /** Finish an asynchronous call started by read_line_async().
   *
   * @param result The AsyncResult that was provided to the callback slot.
   * @param data A string to fill with the read data.
   * @result true if the read succeeded without error.
   */
  bool read_line_finish(const Glib::RefPtr<AsyncResult>& result, std::string& data);
  _IGNORE(g_data_input_stream_read_line_finish)

  _WRAP_METHOD(void read_line_finish_utf8(const Glib::RefPtr<AsyncResult>& result{.}, std::string& data{OUT}, gsize& length{.?}), g_data_input_stream_read_line_finish_utf8, errthrow)

  /** Reads a string from the data input stream, up to the first
   * occurrence of any of the stop characters.
   *
   * Note that, in contrast to read_until_async(),
   * this function consumes the stop character that it finds.
   *
   * Don't use this function in new code.  Its functionality is
   * inconsistent with read_until_async().  Both
   * functions will be marked as deprecated in a future release.  Use
   * read_upto() instead, but note that that method
   * does not consume the stop character.
   *
   * @param data A string to fill with the read data.
   * @param stop_chars Characters to terminate the read.
   * @param cancellable A cancellable object.
   * @result true if the read succeeded without error.
   */
  bool read_until(std::string& data, const std::string& stop_chars, const Glib::RefPtr<Cancellable>& cancellable);
  _IGNORE(g_data_input_stream_read_until)

  //TODO: This will be really deprecated sometime, maybe sometime after glib 2.30.0.
  /** A non-cancellable version of read_until().
   *
   * Note that, in contrast to read_until_async(),
   * this function consumes the stop character that it finds.
   *
   * Don't use this function in new code.  Its functionality is
   * inconsistent with read_until_async().  Both
   * functions will be marked as deprecated in a future release.  Use
   * read_upto() instead, but note that that method
   * does not consume the stop character.
   *
   * @param data A string to fill with the read data.
   * @param stop_chars Characters to terminate the read.
   * @result true if the read succeeded without error.
   */
  bool read_until(std::string& data, const std::string& stop_chars);

  //TODO: This will be really deprecated sometime after glib 2.30.0.
  /** The asynchronous version of read_until(). It is
   * an error to have two outstanding calls to this function.
   *
   * Note that, in contrast to ead_until(),
   * this function does not consume the stop character that it finds.  You
   * must read it for yourself.
   *
   *
   * Don't use this function in new code.  Its functionality is
   * inconsistent with read_until().  Both functions
   * will be marked as deprecated in a future release.  Use
   * read_upto_async() instead.
   *
   * @param stop_chars Characters to terminate the read.
   * @param slot The slot to call when the request is satisfied.
   * @param cancellable A cancellable object.
   * @param io_priority The I/O priority of the request.
   * @result true if the read succeeded without error.
   */
  void read_until_async(const std::string& stop_chars, const SlotAsyncReady& slot, const Glib::RefPtr<Cancellable>& cancellable, int io_priority = Glib::PRIORITY_DEFAULT);
  _IGNORE(g_data_input_stream_read_until_async)

  //TODO: This will be really deprecated sometime after glib 2.30.0.
  /** Finish an asynchronous call started by read_until_async().
   *
   * @param result The AsyncResult that was provided to the callback slot.
   * @param data A string to fill with the read data.
   * @result true if the read succeeded without error.
   */
  bool read_until_finish(const Glib::RefPtr<AsyncResult>& result, std::string& data);
  _IGNORE(g_data_input_stream_read_until_finish)


 /** Reads a string from the data input stream, up to the first
   * occurrence of any of the stop characters.
   *
   * In contrast to read_until(), this method
   * does <em>not</em> consume the stop character. You have
   * to use read_byte() to get it before calling
   * read_upto() again.
   *
   * @param data A string to fill with the read data.
   * @param stop_chars Characters to terminate the read.
   * @param cancellable A cancellable object.
   * @result true if the read succeeded without error.
   */
  bool read_upto(std::string& data, const std::string& stop_chars, const Glib::RefPtr<Cancellable>& cancellable);
  _IGNORE(g_data_input_stream_read_upto)

  /** A non-cancellable version of read_upto().
   * @param data A string to fill with the read data.
   * @param stop_chars Characters to terminate the read.
   * @result true if the read succeeded without error.
   */
  bool read_upto(std::string& data, const std::string& stop_chars);

  //TODO: Add a version that takes the stop_chars length, to allow a 0 in the middle?

  /** The asynchronous version of read_upto(). It is
   * an error to have two outstanding calls to this function.
   *
   * In contrast to read_until(), this method
   * does <em>not</em> consume the stop character. You have
   * to use read_byte() to get it before calling
   * read_upto() again.
   *
   * @param stop_chars Characters to terminate the read.
   * @param slot The slot to call when the request is satisfied.
   * @param cancellable A cancellable object.
   * @param io_priority The I/O priority of the request.
   * @result true if the read succeeded without error.
   */
  void read_upto_async(const std::string& stop_chars, const SlotAsyncReady& slot, const Glib::RefPtr<Cancellable>& cancellable, int io_priority = Glib::PRIORITY_DEFAULT);
  _IGNORE(g_data_input_stream_read_upto_async)

  /** Finish an asynchronous call started by read_upto_async().
   *
   * Note that this function does <em>not</em> consume the
   * stop character. You have to use read_byte() to
   * get it before calling read_upto_async() again.
   *
   * @param result The AsyncResult that was provided to the callback slot.
   * @param data A string to fill with the read data.
   * @result true if the read succeeded without error.
   */
  bool read_upto_finish(const Glib::RefPtr<AsyncResult>& result, std::string& data);
  _IGNORE(g_data_input_stream_read_upto_finish)

  _WRAP_PROPERTY("byte-order", DataStreamByteOrder)
  _WRAP_PROPERTY("newline-type", DataStreamNewlineType)
};

} // namespace Gio