mirror of https://gitee.com/openkylin/glib2.0.git
220 lines
9.8 KiB
C
220 lines
9.8 KiB
C
/* GIO - GLib Input, Output and Streaming Library
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*
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* Copyright 2011 Red Hat, Inc.
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*
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* SPDX-License-Identifier: LGPL-2.1-or-later
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __G_TASK_H__
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#define __G_TASK_H__
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#if !defined (__GIO_GIO_H_INSIDE__) && !defined (GIO_COMPILATION)
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#error "Only <gio/gio.h> can be included directly."
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#endif
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#include <gio/giotypes.h>
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G_BEGIN_DECLS
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#define G_TYPE_TASK (g_task_get_type ())
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#define G_TASK(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_TASK, GTask))
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#define G_TASK_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), G_TYPE_TASK, GTaskClass))
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#define G_IS_TASK(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_TASK))
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#define G_IS_TASK_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), G_TYPE_TASK))
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#define G_TASK_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), G_TYPE_TASK, GTaskClass))
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typedef struct _GTaskClass GTaskClass;
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GIO_AVAILABLE_IN_2_36
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GType g_task_get_type (void) G_GNUC_CONST;
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GIO_AVAILABLE_IN_2_36
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GTask *g_task_new (gpointer source_object,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer callback_data);
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GIO_AVAILABLE_IN_2_36
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void g_task_report_error (gpointer source_object,
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GAsyncReadyCallback callback,
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gpointer callback_data,
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gpointer source_tag,
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GError *error);
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GIO_AVAILABLE_IN_2_36
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void g_task_report_new_error (gpointer source_object,
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GAsyncReadyCallback callback,
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gpointer callback_data,
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gpointer source_tag,
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GQuark domain,
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gint code,
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const char *format,
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...) G_GNUC_PRINTF(7, 8);
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GIO_AVAILABLE_IN_2_36
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void g_task_set_task_data (GTask *task,
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gpointer task_data,
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GDestroyNotify task_data_destroy);
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GIO_AVAILABLE_IN_2_36
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void g_task_set_priority (GTask *task,
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gint priority);
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GIO_AVAILABLE_IN_2_36
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void g_task_set_check_cancellable (GTask *task,
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gboolean check_cancellable);
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GIO_AVAILABLE_IN_2_36
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void g_task_set_source_tag (GTask *task,
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gpointer source_tag);
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GIO_AVAILABLE_IN_2_60
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void g_task_set_name (GTask *task,
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const gchar *name);
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GIO_AVAILABLE_IN_2_76
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void g_task_set_static_name (GTask *task,
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const gchar *name);
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/* Macro wrapper to set the task name when setting the source tag. */
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#if GLIB_VERSION_MIN_REQUIRED >= GLIB_VERSION_2_76
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#define g_task_set_source_tag(task, tag) G_STMT_START { \
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GTask *_task = (task); \
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(g_task_set_source_tag) (_task, tag); \
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if (g_task_get_name (_task) == NULL) \
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g_task_set_static_name (_task, G_STRINGIFY (tag)); \
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} G_STMT_END
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#endif
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#if GLIB_VERSION_MIN_REQUIRED >= GLIB_VERSION_2_76
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#if defined (__GNUC__) && (__GNUC__ >= 2)
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#define g_task_set_name(task, name) G_STMT_START { \
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GTask *_task = (task); \
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if (__builtin_constant_p (name)) \
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g_task_set_static_name (_task, name); \
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else \
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g_task_set_name (_task, name); \
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} G_STMT_END
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#endif
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#endif
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GIO_AVAILABLE_IN_2_36
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gpointer g_task_get_source_object (GTask *task);
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GIO_AVAILABLE_IN_2_36
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gpointer g_task_get_task_data (GTask *task);
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GIO_AVAILABLE_IN_2_36
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gint g_task_get_priority (GTask *task);
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GIO_AVAILABLE_IN_2_36
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GMainContext *g_task_get_context (GTask *task);
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GIO_AVAILABLE_IN_2_36
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GCancellable *g_task_get_cancellable (GTask *task);
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GIO_AVAILABLE_IN_2_36
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gboolean g_task_get_check_cancellable (GTask *task);
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GIO_AVAILABLE_IN_2_36
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gpointer g_task_get_source_tag (GTask *task);
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GIO_AVAILABLE_IN_2_60
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const gchar *g_task_get_name (GTask *task);
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GIO_AVAILABLE_IN_2_36
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gboolean g_task_is_valid (gpointer result,
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gpointer source_object);
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typedef void (*GTaskThreadFunc) (GTask *task,
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gpointer source_object,
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gpointer task_data,
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GCancellable *cancellable);
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GIO_AVAILABLE_IN_2_36
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void g_task_run_in_thread (GTask *task,
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GTaskThreadFunc task_func);
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GIO_AVAILABLE_IN_2_36
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void g_task_run_in_thread_sync (GTask *task,
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GTaskThreadFunc task_func);
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GIO_AVAILABLE_IN_2_36
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gboolean g_task_set_return_on_cancel (GTask *task,
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gboolean return_on_cancel);
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GIO_AVAILABLE_IN_2_36
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gboolean g_task_get_return_on_cancel (GTask *task);
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GIO_AVAILABLE_IN_2_36
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void g_task_attach_source (GTask *task,
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GSource *source,
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GSourceFunc callback);
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GIO_AVAILABLE_IN_2_36
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void g_task_return_pointer (GTask *task,
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gpointer result,
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GDestroyNotify result_destroy);
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GIO_AVAILABLE_IN_2_36
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void g_task_return_boolean (GTask *task,
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gboolean result);
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GIO_AVAILABLE_IN_2_36
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void g_task_return_int (GTask *task,
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gssize result);
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GIO_AVAILABLE_IN_2_36
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void g_task_return_error (GTask *task,
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GError *error);
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GIO_AVAILABLE_IN_2_80
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void g_task_return_prefixed_error (GTask *task,
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GError *error,
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const char *format,
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...) G_GNUC_PRINTF (3, 4);
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GIO_AVAILABLE_IN_2_36
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void g_task_return_new_error (GTask *task,
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GQuark domain,
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gint code,
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const char *format,
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...) G_GNUC_PRINTF (4, 5);
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GIO_AVAILABLE_IN_2_80
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void g_task_return_new_error_literal (GTask *task,
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GQuark domain,
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gint code,
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const char *message);
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GIO_AVAILABLE_IN_2_64
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void g_task_return_value (GTask *task,
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GValue *result);
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GIO_AVAILABLE_IN_2_36
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gboolean g_task_return_error_if_cancelled (GTask *task);
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GIO_AVAILABLE_IN_2_36
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gpointer g_task_propagate_pointer (GTask *task,
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GError **error);
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GIO_AVAILABLE_IN_2_36
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gboolean g_task_propagate_boolean (GTask *task,
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GError **error);
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GIO_AVAILABLE_IN_2_36
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gssize g_task_propagate_int (GTask *task,
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GError **error);
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GIO_AVAILABLE_IN_2_64
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gboolean g_task_propagate_value (GTask *task,
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GValue *value,
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GError **error);
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GIO_AVAILABLE_IN_2_36
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gboolean g_task_had_error (GTask *task);
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GIO_AVAILABLE_IN_2_44
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gboolean g_task_get_completed (GTask *task);
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/*< private >*/
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#ifndef __GTK_DOC_IGNORE__
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#ifndef __GI_SCANNER__
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/* Debugging API, not part of the public API */
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void g_task_print_alive_tasks (void);
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#endif /* !__GI_SCANNER__ */
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#endif /* !__GTK_DOC_IGNORE__ */
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G_END_DECLS
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#endif /* __G_TASK_H__ */
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