// -*- c++ -*-
#ifndef _GLIBMM_DEBUG_H
#define _GLIBMM_DEBUG_H

/* Copyright 2002 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 <glibmmconfig.h>
#include <glib.h>

// Some stuff that's useful when debugging gtkmm internals:

#ifdef GLIBMM_DEBUG_REFCOUNTING

/* We can't use the equivalent GLib macro because it's always disabled in C++,
 * even though __PRETTY_FUNCTION__ works fine in C++ as well if you use it
 * right (i.e. concatenation with string literals isn't allowed).
 */
#ifdef __GNUC__
#define GLIBMM_GNUC_PRETTY_FUNCTION __PRETTY_FUNCTION__
#else
#define GLIBMM_GNUC_PRETTY_FUNCTION ""
#endif

#define GLIBMM_DEBUG_REFERENCE(cppInstance, cInstance)                             \
  G_STMT_START                                                                     \
  {                                                                                \
    void* const cppInstance__ = (void*)(cppInstance);                              \
    void* const cInstance__ = (void*)(cInstance);                                  \
    g_log(G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG,                                         \
      "file %s: line %d (%s):\n"                                                   \
      "ref: C++ instance: %p; C instance: %p, ref_count = %u, type = %s\n",        \
      __FILE__, __LINE__, GLIBMM_GNUC_PRETTY_FUNCTION, cppInstance__, cInstance__, \
      G_OBJECT(cInstance__)->ref_count, G_OBJECT_TYPE_NAME(cInstance__));          \
  }                                                                                \
  G_STMT_END

#define GLIBMM_DEBUG_UNREFERENCE(cppInstance, cInstance)                           \
  G_STMT_START                                                                     \
  {                                                                                \
    void* const cppInstance__ = (void*)(cppInstance);                              \
    void* const cInstance__ = (void*)(cInstance);                                  \
    g_log(G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG,                                         \
      "file %s: line %d (%s):\n"                                                   \
      "unref: C++ instance: %p; C instance: %p, ref_count = %u, type = %s\n",      \
      __FILE__, __LINE__, GLIBMM_GNUC_PRETTY_FUNCTION, cppInstance__, cInstance__, \
      G_OBJECT(cInstance__)->ref_count, G_OBJECT_TYPE_NAME(cInstance__));          \
  }                                                                                \
  G_STMT_END

#else

#define GLIBMM_DEBUG_REFERENCE(cppInstance, cInstance) \
  G_STMT_START { (void)0; }                            \
  G_STMT_END
#define GLIBMM_DEBUG_UNREFERENCE(cppInstance, cInstance) \
  G_STMT_START { (void)0; }                              \
  G_STMT_END

#endif /* GLIBMM_DEBUG_REFCOUNTING */

#endif /* _GLIBMM_DEBUG_H */
