golden hour

/usr/include/glib-2.0/gio

File/Folder	Size	Actions
gaction.h	4.5 KB
gactiongroup.h	8.95 KB
gactiongroupexporter.h	1.73 KB
gactionmap.h	3.9 KB
gappinfo.h	18.65 KB
gapplication.h	14.21 KB
gapplicationcommandline.h	6.02 KB
gasyncinitable.h	4.32 KB
gasyncresult.h	2.75 KB
gbufferedinputstream.h	5.11 KB
gbufferedoutputstream.h	3.26 KB
gbytesicon.h	1.61 KB
gcancellable.h	3.96 KB
gcharsetconverter.h	2.46 KB
gcontenttype.h	2.9 KB
gconverter.h	2.82 KB
gconverterinputstream.h	2.94 KB
gconverteroutputstream.h	2.98 KB
gcredentials.h	3.33 KB
gdatagrambased.h	6.5 KB
gdatainputstream.h	10.88 KB
gdataoutputstream.h	4.81 KB
gdbusactiongroup.h	2.67 KB
gdbusaddress.h	2.61 KB
gdbusauthobserver.h	2.08 KB
gdbusconnection.h	38.13 KB
gdbuserror.h	4.21 KB
gdbusinterface.h	3 KB
gdbusinterfaceskeleton.h	5.91 KB
gdbusintrospection.h	12.21 KB
gdbusmenumodel.h	1.69 KB
gdbusmessage.h	11.12 KB
gdbusmethodinvocation.h	6.72 KB
gdbusnameowning.h	4.76 KB
gdbusnamewatching.h	4.42 KB
gdbusobject.h	2.87 KB
gdbusobjectmanager.h	4.37 KB
gdbusobjectmanagerclient.h	9.57 KB
gdbusobjectmanagerserver.h	4.02 KB
gdbusobjectproxy.h	2.57 KB
gdbusobjectskeleton.h	3.86 KB
gdbusproxy.h	11.8 KB
gdbusserver.h	2.47 KB
gdbusutils.h	1.97 KB
gdrive.h	14.16 KB
gdtlsclientconnection.h	3.12 KB
gdtlsconnection.h	11.96 KB
gdtlsserverconnection.h	2.39 KB
gemblem.h	2.1 KB
gemblemedicon.h	2.72 KB
gfile.h	78.24 KB
gfileattribute.h	2.74 KB
gfileenumerator.h	6.24 KB
gfileicon.h	1.91 KB
gfileinfo.h	43.44 KB
gfileinputstream.h	4.55 KB
gfileiostream.h	4.92 KB
gfilemonitor.h	3.2 KB
gfilenamecompleter.h	3.02 KB
gfileoutputstream.h	5.21 KB
gfilterinputstream.h	2.77 KB
gfilteroutputstream.h	2.81 KB
gicon.h	3.35 KB
ginetaddress.h	4.42 KB
ginetaddressmask.h	3.04 KB
ginetsocketaddress.h	3.04 KB
ginitable.h	2.91 KB
ginputstream.h	8.97 KB
gio-autocleanups.h	8.85 KB
gio.h	5.55 KB
gioenums.h	77.7 KB
gioenumtypes.h	12.52 KB
gioerror.h	1.52 KB
giomodule.h	7.88 KB
gioscheduler.h	1.95 KB
giostream.h	4.75 KB
giotypes.h	24.1 KB
glistmodel.h	2.52 KB
gliststore.h	4.08 KB
gloadableicon.h	3.58 KB
gmemoryinputstream.h	3.35 KB
gmemorymonitor.h	2.09 KB
gmemoryoutputstream.h	3.84 KB
gmenu.h	8.73 KB
gmenuexporter.h	1.57 KB
gmenumodel.h	14 KB
gmount.h	15.42 KB
gmountoperation.h	6.61 KB
gnativesocketaddress.h	2.48 KB
gnativevolumemonitor.h	2.22 KB
gnetworkaddress.h	2.89 KB
gnetworking.h	1.91 KB
gnetworkmonitor.h	4.14 KB
gnetworkservice.h	2.69 KB
gnotification.h	4.78 KB
goutputstream.h	15.39 KB
gpermission.h	5.72 KB
gpollableinputstream.h	3.74 KB
gpollableoutputstream.h	4.8 KB
gpollableutils.h	2.08 KB
gpowerprofilemonitor.h	2.25 KB
gpropertyaction.h	1.95 KB
gproxy.h	3.97 KB
gproxyaddress.h	3.09 KB
gproxyaddressenumerator.h	2.87 KB
gproxyresolver.h	3.31 KB
gremoteactiongroup.h	3.55 KB
gresolver.h	16.46 KB
gresource.h	4.54 KB
gseekable.h	3.2 KB
gsettings.h	20.65 KB
gsettingsbackend.h	8.31 KB
gsettingsschema.h	5.79 KB
gsimpleaction.h	2.85 KB
gsimpleactiongroup.h	4.25 KB
gsimpleasyncresult.h	7.63 KB
gsimpleiostream.h	1.68 KB
gsimplepermission.h	1.65 KB
gsimpleproxyresolver.h	3.45 KB
gsocket.h	15.8 KB
gsocketaddress.h	3.01 KB
gsocketaddressenumerator.h	3.81 KB
gsocketclient.h	10.95 KB
gsocketconnectable.h	2.82 KB
gsocketconnection.h	4.94 KB
gsocketcontrolmessage.h	4.77 KB
gsocketlistener.h	7.5 KB
gsocketservice.h	3.53 KB
gsrvtarget.h	1.89 KB
gsubprocess.h	8.4 KB
gsubprocesslauncher.h	6.38 KB
gtask.h	8.44 KB
gtcpconnection.h	2.89 KB
gtcpwrapperconnection.h	2.9 KB
gtestdbus.h	2.25 KB
gthemedicon.h	2.58 KB
gthreadedsocketservice.h	3.58 KB
gtlsbackend.h	4.48 KB
gtlscertificate.h	3.73 KB
gtlsclientconnection.h	3.6 KB
gtlsconnection.h	7.59 KB
gtlsdatabase.h	16.87 KB
gtlsfiledatabase.h	1.86 KB
gtlsinteraction.h	8.14 KB
gtlspassword.h	4.71 KB
gtlsserverconnection.h	2.29 KB
gvfs.h	6.46 KB
gvolume.h	11.46 KB
gvolumemonitor.h	5.86 KB
gzlibcompressor.h	2.29 KB
gzlibdecompressor.h	2.16 KB

Edit: gtask.h

/* GIO - GLib Input, Output and Streaming Library
 *
 * Copyright 2011 Red Hat, Inc.
 *
 * 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, see <http://www.gnu.org/licenses/>.
 */

#ifndef __G_TASK_H__
#define __G_TASK_H__

#if !defined (__GIO_GIO_H_INSIDE__) && !defined (GIO_COMPILATION)
#error "Only <gio/gio.h> can be included directly."
#endif

#include <gio/giotypes.h>

G_BEGIN_DECLS

#define G_TYPE_TASK         (g_task_get_type ())
#define G_TASK(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_TASK, GTask))
#define G_TASK_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST((k), G_TYPE_TASK, GTaskClass))
#define G_IS_TASK(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_TASK))
#define G_IS_TASK_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE ((k), G_TYPE_TASK))
#define G_TASK_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), G_TYPE_TASK, GTaskClass))

typedef struct _GTaskClass   GTaskClass;

GLIB_AVAILABLE_IN_2_36
GType         g_task_get_type              (void) G_GNUC_CONST;

GLIB_AVAILABLE_IN_2_36
GTask        *g_task_new                   (gpointer             source_object,
                                            GCancellable        *cancellable,
                                            GAsyncReadyCallback  callback,
                                            gpointer             callback_data);

GLIB_AVAILABLE_IN_2_36
void          g_task_report_error          (gpointer             source_object,
                                            GAsyncReadyCallback  callback,
                                            gpointer             callback_data,
                                            gpointer             source_tag,
                                            GError              *error);
GLIB_AVAILABLE_IN_2_36
void          g_task_report_new_error      (gpointer             source_object,
                                            GAsyncReadyCallback  callback,
                                            gpointer             callback_data,
                                            gpointer             source_tag,
                                            GQuark               domain,
                                            gint                 code,
                                            const char          *format,
                                            ...) G_GNUC_PRINTF(7, 8);

GLIB_AVAILABLE_IN_2_36
void          g_task_set_task_data         (GTask               *task,
                                            gpointer             task_data,
                                            GDestroyNotify       task_data_destroy);
GLIB_AVAILABLE_IN_2_36
void          g_task_set_priority          (GTask               *task,
                                            gint                 priority);
GLIB_AVAILABLE_IN_2_36
void          g_task_set_check_cancellable (GTask               *task,
                                            gboolean             check_cancellable);
GLIB_AVAILABLE_IN_2_36
void          g_task_set_source_tag        (GTask               *task,
                                            gpointer             source_tag);
GLIB_AVAILABLE_IN_2_60
void          g_task_set_name              (GTask               *task,
                                            const gchar         *name);

/* Macro wrapper to set the task name when setting the source tag. */
#if GLIB_VERSION_MIN_REQUIRED >= GLIB_VERSION_2_60
#define g_task_set_source_tag(task, tag) G_STMT_START { \
  GTask *_task = (task); \
  (g_task_set_source_tag) (_task, tag); \
  if (g_task_get_name (_task) == NULL) \
    g_task_set_name (_task, G_STRINGIFY (tag)); \
} G_STMT_END
#endif

GLIB_AVAILABLE_IN_2_36
gpointer      g_task_get_source_object     (GTask               *task);
GLIB_AVAILABLE_IN_2_36
gpointer      g_task_get_task_data         (GTask               *task);
GLIB_AVAILABLE_IN_2_36
gint          g_task_get_priority          (GTask               *task);
GLIB_AVAILABLE_IN_2_36
GMainContext *g_task_get_context           (GTask               *task);
GLIB_AVAILABLE_IN_2_36
GCancellable *g_task_get_cancellable       (GTask               *task);
GLIB_AVAILABLE_IN_2_36
gboolean      g_task_get_check_cancellable (GTask               *task);
GLIB_AVAILABLE_IN_2_36
gpointer      g_task_get_source_tag        (GTask               *task);
GLIB_AVAILABLE_IN_2_60
const gchar  *g_task_get_name              (GTask               *task);

GLIB_AVAILABLE_IN_2_36
gboolean      g_task_is_valid              (gpointer             result,
                                            gpointer             source_object);

typedef void (*GTaskThreadFunc)           (GTask           *task,
                                           gpointer         source_object,
                                           gpointer         task_data,
                                           GCancellable    *cancellable);
GLIB_AVAILABLE_IN_2_36
void          g_task_run_in_thread        (GTask           *task,
                                           GTaskThreadFunc  task_func);
GLIB_AVAILABLE_IN_2_36
void          g_task_run_in_thread_sync   (GTask           *task,
                                           GTaskThreadFunc  task_func);
GLIB_AVAILABLE_IN_2_36
gboolean      g_task_set_return_on_cancel (GTask           *task,
                                           gboolean         return_on_cancel);
GLIB_AVAILABLE_IN_2_36
gboolean      g_task_get_return_on_cancel (GTask           *task);

GLIB_AVAILABLE_IN_2_36
void          g_task_attach_source        (GTask           *task,
                                           GSource         *source,
                                           GSourceFunc      callback);

GLIB_AVAILABLE_IN_2_36
void          g_task_return_pointer            (GTask           *task,
                                                gpointer         result,
                                                GDestroyNotify   result_destroy);
GLIB_AVAILABLE_IN_2_36
void          g_task_return_boolean            (GTask           *task,
                                                gboolean         result);
GLIB_AVAILABLE_IN_2_36
void          g_task_return_int                (GTask           *task,
                                                gssize           result);

GLIB_AVAILABLE_IN_2_36
void          g_task_return_error              (GTask           *task,
                                                GError          *error);
GLIB_AVAILABLE_IN_2_36
void          g_task_return_new_error          (GTask           *task,
                                                GQuark           domain,
                                                gint             code,
                                                const char      *format,
                                                ...) G_GNUC_PRINTF (4, 5);
GLIB_AVAILABLE_IN_2_64
void          g_task_return_value              (GTask           *task,
                                                GValue          *result);

GLIB_AVAILABLE_IN_2_36
gboolean      g_task_return_error_if_cancelled (GTask           *task);

GLIB_AVAILABLE_IN_2_36
gpointer      g_task_propagate_pointer         (GTask           *task,
                                                GError         **error);
GLIB_AVAILABLE_IN_2_36
gboolean      g_task_propagate_boolean         (GTask           *task,
                                                GError         **error);
GLIB_AVAILABLE_IN_2_36
gssize        g_task_propagate_int             (GTask           *task,
                                                GError         **error);
GLIB_AVAILABLE_IN_2_64
gboolean      g_task_propagate_value           (GTask           *task,
                                                GValue          *value,
                                                GError         **error);
GLIB_AVAILABLE_IN_2_36
gboolean      g_task_had_error                 (GTask           *task);
GLIB_AVAILABLE_IN_2_44
gboolean      g_task_get_completed             (GTask           *task);

G_END_DECLS

#endif /* __G_TASK_H__ */