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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
*
* Copyright (C) 2015 Colin Walters <walters@verbum.org>
*
* GLIB - Library of useful routines for C programming
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* 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 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#pragma once
#include <gio/gio.h>
G_BEGIN_DECLS
#if !GLIB_CHECK_VERSION(2, 43, 4)
#define _GLIB_AUTOPTR_FUNC_NAME(TypeName) glib_autoptr_cleanup_##TypeName
#define _GLIB_AUTOPTR_TYPENAME(TypeName) TypeName##_autoptr
#define _GLIB_AUTO_FUNC_NAME(TypeName) glib_auto_cleanup_##TypeName
#define _GLIB_CLEANUP(func) __attribute__((cleanup(func)))
#define _GLIB_DEFINE_AUTOPTR_CHAINUP(ModuleObjName, ParentName) \
typedef ModuleObjName *_GLIB_AUTOPTR_TYPENAME(ModuleObjName); \
static inline void _GLIB_AUTOPTR_FUNC_NAME(ModuleObjName) (ModuleObjName **_ptr) { \
_GLIB_AUTOPTR_FUNC_NAME(ParentName) ((ParentName **) _ptr); } \
/* these macros are API */
#define G_DEFINE_AUTOPTR_CLEANUP_FUNC(TypeName, func) \
typedef TypeName *_GLIB_AUTOPTR_TYPENAME(TypeName); \
G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
static inline void _GLIB_AUTOPTR_FUNC_NAME(TypeName) (TypeName **_ptr) { if (*_ptr) (func) (*_ptr); } \
G_GNUC_END_IGNORE_DEPRECATIONS
#define G_DEFINE_AUTO_CLEANUP_CLEAR_FUNC(TypeName, func) \
G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
static inline void _GLIB_AUTO_FUNC_NAME(TypeName) (TypeName *_ptr) { (func) (_ptr); } \
G_GNUC_END_IGNORE_DEPRECATIONS
#define G_DEFINE_AUTO_CLEANUP_FREE_FUNC(TypeName, func, none) \
G_GNUC_BEGIN_IGNORE_DEPRECATIONS \
static inline void _GLIB_AUTO_FUNC_NAME(TypeName) (TypeName *_ptr) { if (*_ptr != none) (func) (*_ptr); } \
G_GNUC_END_IGNORE_DEPRECATIONS
#define g_autoptr(TypeName) _GLIB_CLEANUP(_GLIB_AUTOPTR_FUNC_NAME(TypeName)) _GLIB_AUTOPTR_TYPENAME(TypeName)
#define g_auto(TypeName) _GLIB_CLEANUP(_GLIB_AUTO_FUNC_NAME(TypeName)) TypeName
#define g_autofree _GLIB_CLEANUP(g_autoptr_cleanup_generic_gfree)
/**
* g_steal_pointer:
* @pp: a pointer to a pointer
*
* Sets @pp to %NULL, returning the value that was there before.
*
* Conceptually, this transfers the ownership of the pointer from the
* referenced variable to the "caller" of the macro (ie: "steals" the
* reference).
*
* The return value will be properly typed, according to the type of
* @pp.
*
* This can be very useful when combined with g_autoptr() to prevent the
* return value of a function from being automatically freed. Consider
* the following example (which only works on GCC and clang):
*
* |[
* GObject *
* create_object (void)
* {
* g_autoptr(GObject) obj = g_object_new (G_TYPE_OBJECT, NULL);
*
* if (early_error_case)
* return NULL;
*
* return g_steal_pointer (&obj);
* }
* ]|
*
* It can also be used in similar ways for 'out' parameters and is
* particularly useful for dealing with optional out parameters:
*
* |[
* gboolean
* get_object (GObject **obj_out)
* {
* g_autoptr(GObject) obj = g_object_new (G_TYPE_OBJECT, NULL);
*
* if (early_error_case)
* return FALSE;
*
* if (obj_out)
* *obj_out = g_steal_pointer (&obj);
*
* return TRUE;
* }
* ]|
*
* In the above example, the object will be automatically freed in the
* early error case and also in the case that %NULL was given for
* @obj_out.
*
* Since: 2.44
*/
static inline gpointer
(g_steal_pointer) (gpointer pp)
{
gpointer *ptr = (gpointer *) pp;
gpointer ref;
ref = *ptr;
*ptr = NULL;
return ref;
}
/* type safety */
#define g_steal_pointer(pp) \
(0 ? (*(pp)) : (g_steal_pointer) (pp))
static inline void
g_autoptr_cleanup_generic_gfree (void *p)
{
void **pp = (void**)p;
if (*pp)
g_free (*pp);
}
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GAsyncQueue, g_async_queue_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GBookmarkFile, g_bookmark_file_free)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GBytes, g_bytes_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GChecksum, g_checksum_free)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GDateTime, g_date_time_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GDir, g_dir_close)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GError, g_error_free)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GHashTable, g_hash_table_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GHmac, g_hmac_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GIOChannel, g_io_channel_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GKeyFile, g_key_file_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GList, g_list_free)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GArray, g_array_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GPtrArray, g_ptr_array_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GMainContext, g_main_context_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GMainLoop, g_main_loop_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GSource, g_source_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GMappedFile, g_mapped_file_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GMarkupParseContext, g_markup_parse_context_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(gchar, g_free)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GNode, g_node_destroy)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GOptionContext, g_option_context_free)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GOptionGroup, g_option_group_free)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GPatternSpec, g_pattern_spec_free)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GQueue, g_queue_free)
G_DEFINE_AUTO_CLEANUP_CLEAR_FUNC(GQueue, g_queue_clear)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GRand, g_rand_free)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GRegex, g_regex_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GMatchInfo, g_match_info_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GScanner, g_scanner_destroy)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GSequence, g_sequence_free)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GSList, g_slist_free)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GStringChunk, g_string_chunk_free)
G_DEFINE_AUTO_CLEANUP_FREE_FUNC(GStrv, g_strfreev, NULL)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GThread, g_thread_unref)
G_DEFINE_AUTO_CLEANUP_CLEAR_FUNC(GMutex, g_mutex_clear)
G_DEFINE_AUTO_CLEANUP_CLEAR_FUNC(GCond, g_cond_clear)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GTimer, g_timer_destroy)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GTimeZone, g_time_zone_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GTree, g_tree_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GVariant, g_variant_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GVariantBuilder, g_variant_builder_unref)
G_DEFINE_AUTO_CLEANUP_CLEAR_FUNC(GVariantBuilder, g_variant_builder_clear)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GVariantIter, g_variant_iter_free)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GVariantDict, g_variant_dict_unref)
G_DEFINE_AUTO_CLEANUP_CLEAR_FUNC(GVariantDict, g_variant_dict_clear)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GVariantType, g_variant_type_free)
/* Add GObject-based types as needed. */
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GAsyncResult, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GCancellable, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GConverter, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GConverterOutputStream, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GDataInputStream, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GFile, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GFileEnumerator, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GFileIOStream, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GFileInfo, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GFileInputStream, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GFileMonitor, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GFileOutputStream, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GInputStream, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GMemoryInputStream, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GMemoryOutputStream, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GMount, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GOutputStream, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GSocket, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GSocketAddress, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GSubprocess, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GSubprocessLauncher, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GTask, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GTlsCertificate, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GTlsDatabase, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GTlsInteraction, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GDBusConnection, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GDBusMessage, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GVolumeMonitor, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GZlibCompressor, g_object_unref)
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GZlibDecompressor, g_object_unref)
#endif /* !GLIB_CHECK_VERSION(2, 43, 3) */
#if !GLIB_CHECK_VERSION(2, 45, 8)
static inline void
g_autoptr_cleanup_gstring_free (GString *string)
{
if (string)
g_string_free (string, TRUE);
}
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GString, g_autoptr_cleanup_gstring_free)
#endif
G_END_DECLS
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