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6181c7de36
g_cancellable_create_source() returns a GSource that triggers when its corresponding GCancellable is cancelled. This can be used with g_source_add_child_source() to add cancellability to a source. Port gasynchelper's FDSource to use this rather than doing its own cancellable handling, and also fix up its callback argument order to be more normal. https://bugzilla.gnome.org/show_bug.cgi?id=634239
106 lines
3.7 KiB
C
106 lines
3.7 KiB
C
/* GIO - GLib Input, Output and Streaming Library
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*
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* Copyright (C) 2006-2007 Red Hat, Inc.
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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 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, write to the
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* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* Author: Alexander Larsson <alexl@redhat.com>
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*/
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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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#ifndef __G_CANCELLABLE_H__
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#define __G_CANCELLABLE_H__
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#include <gio/giotypes.h>
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G_BEGIN_DECLS
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#define G_TYPE_CANCELLABLE (g_cancellable_get_type ())
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#define G_CANCELLABLE(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_CANCELLABLE, GCancellable))
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#define G_CANCELLABLE_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), G_TYPE_CANCELLABLE, GCancellableClass))
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#define G_IS_CANCELLABLE(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_CANCELLABLE))
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#define G_IS_CANCELLABLE_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), G_TYPE_CANCELLABLE))
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#define G_CANCELLABLE_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), G_TYPE_CANCELLABLE, GCancellableClass))
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/**
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* GCancellable:
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*
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* Allows actions to be cancelled.
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*/
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typedef struct _GCancellableClass GCancellableClass;
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typedef struct _GCancellablePrivate GCancellablePrivate;
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struct _GCancellable
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{
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GObject parent_instance;
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/*< private >*/
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GCancellablePrivate *priv;
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};
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struct _GCancellableClass
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{
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GObjectClass parent_class;
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void (* cancelled) (GCancellable *cancellable);
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/*< private >*/
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/* Padding for future expansion */
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void (*_g_reserved1) (void);
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void (*_g_reserved2) (void);
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void (*_g_reserved3) (void);
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void (*_g_reserved4) (void);
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void (*_g_reserved5) (void);
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};
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GType g_cancellable_get_type (void) G_GNUC_CONST;
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GCancellable *g_cancellable_new (void);
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/* These are only safe to call inside a cancellable op */
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gboolean g_cancellable_is_cancelled (GCancellable *cancellable);
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gboolean g_cancellable_set_error_if_cancelled (GCancellable *cancellable,
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GError **error);
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int g_cancellable_get_fd (GCancellable *cancellable);
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gboolean g_cancellable_make_pollfd (GCancellable *cancellable,
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GPollFD *pollfd);
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void g_cancellable_release_fd (GCancellable *cancellable);
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GSource * g_cancellable_source_new (GCancellable *cancellable);
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GCancellable *g_cancellable_get_current (void);
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void g_cancellable_push_current (GCancellable *cancellable);
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void g_cancellable_pop_current (GCancellable *cancellable);
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void g_cancellable_reset (GCancellable *cancellable);
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gulong g_cancellable_connect (GCancellable *cancellable,
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GCallback callback,
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gpointer data,
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GDestroyNotify data_destroy_func);
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void g_cancellable_disconnect (GCancellable *cancellable,
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gulong handler_id);
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/* This is safe to call from another thread */
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void g_cancellable_cancel (GCancellable *cancellable);
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G_END_DECLS
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#endif /* __G_CANCELLABLE_H__ */
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