mirror of https://gitee.com/openkylin/glib2.0.git
219 lines
9.0 KiB
C
219 lines
9.0 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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* 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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* Author: Alexander Larsson <alexl@redhat.com>
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*/
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#ifndef __G_INPUT_STREAM_H__
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#define __G_INPUT_STREAM_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_INPUT_STREAM (g_input_stream_get_type ())
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#define G_INPUT_STREAM(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_INPUT_STREAM, GInputStream))
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#define G_INPUT_STREAM_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), G_TYPE_INPUT_STREAM, GInputStreamClass))
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#define G_IS_INPUT_STREAM(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_INPUT_STREAM))
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#define G_IS_INPUT_STREAM_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), G_TYPE_INPUT_STREAM))
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#define G_INPUT_STREAM_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), G_TYPE_INPUT_STREAM, GInputStreamClass))
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/**
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* GInputStream:
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*
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* Base class for streaming input operations.
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**/
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typedef struct _GInputStreamClass GInputStreamClass;
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typedef struct _GInputStreamPrivate GInputStreamPrivate;
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struct _GInputStream
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{
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GObject parent_instance;
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/*< private >*/
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GInputStreamPrivate *priv;
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};
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struct _GInputStreamClass
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{
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GObjectClass parent_class;
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/* Sync ops: */
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gssize (* read_fn) (GInputStream *stream,
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void *buffer,
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gsize count,
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GCancellable *cancellable,
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GError **error);
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gssize (* skip) (GInputStream *stream,
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gsize count,
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GCancellable *cancellable,
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GError **error);
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gboolean (* close_fn) (GInputStream *stream,
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GCancellable *cancellable,
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GError **error);
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/* Async ops: (optional in derived classes) */
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void (* read_async) (GInputStream *stream,
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void *buffer,
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gsize count,
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int io_priority,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data);
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gssize (* read_finish) (GInputStream *stream,
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GAsyncResult *result,
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GError **error);
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void (* skip_async) (GInputStream *stream,
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gsize count,
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int io_priority,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data);
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gssize (* skip_finish) (GInputStream *stream,
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GAsyncResult *result,
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GError **error);
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void (* close_async) (GInputStream *stream,
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int io_priority,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data);
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gboolean (* close_finish) (GInputStream *stream,
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GAsyncResult *result,
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GError **error);
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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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GLIB_AVAILABLE_IN_ALL
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GType g_input_stream_get_type (void) G_GNUC_CONST;
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GLIB_AVAILABLE_IN_ALL
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gssize g_input_stream_read (GInputStream *stream,
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void *buffer,
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gsize count,
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GCancellable *cancellable,
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GError **error);
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GLIB_AVAILABLE_IN_ALL
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gboolean g_input_stream_read_all (GInputStream *stream,
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void *buffer,
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gsize count,
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gsize *bytes_read,
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GCancellable *cancellable,
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GError **error);
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GLIB_AVAILABLE_IN_2_34
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GBytes *g_input_stream_read_bytes (GInputStream *stream,
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gsize count,
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GCancellable *cancellable,
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GError **error);
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GLIB_AVAILABLE_IN_ALL
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gssize g_input_stream_skip (GInputStream *stream,
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gsize count,
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GCancellable *cancellable,
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GError **error);
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GLIB_AVAILABLE_IN_ALL
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gboolean g_input_stream_close (GInputStream *stream,
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GCancellable *cancellable,
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GError **error);
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GLIB_AVAILABLE_IN_ALL
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void g_input_stream_read_async (GInputStream *stream,
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void *buffer,
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gsize count,
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int io_priority,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data);
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GLIB_AVAILABLE_IN_ALL
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gssize g_input_stream_read_finish (GInputStream *stream,
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GAsyncResult *result,
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GError **error);
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GLIB_AVAILABLE_IN_2_44
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void g_input_stream_read_all_async (GInputStream *stream,
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void *buffer,
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gsize count,
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int io_priority,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data);
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GLIB_AVAILABLE_IN_2_44
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gboolean g_input_stream_read_all_finish (GInputStream *stream,
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GAsyncResult *result,
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gsize *bytes_read,
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GError **error);
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GLIB_AVAILABLE_IN_2_34
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void g_input_stream_read_bytes_async (GInputStream *stream,
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gsize count,
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int io_priority,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data);
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GLIB_AVAILABLE_IN_2_34
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GBytes *g_input_stream_read_bytes_finish (GInputStream *stream,
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GAsyncResult *result,
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GError **error);
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GLIB_AVAILABLE_IN_ALL
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void g_input_stream_skip_async (GInputStream *stream,
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gsize count,
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int io_priority,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data);
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GLIB_AVAILABLE_IN_ALL
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gssize g_input_stream_skip_finish (GInputStream *stream,
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GAsyncResult *result,
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GError **error);
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GLIB_AVAILABLE_IN_ALL
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void g_input_stream_close_async (GInputStream *stream,
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int io_priority,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data);
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GLIB_AVAILABLE_IN_ALL
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gboolean g_input_stream_close_finish (GInputStream *stream,
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GAsyncResult *result,
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GError **error);
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/* For implementations: */
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GLIB_AVAILABLE_IN_ALL
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gboolean g_input_stream_is_closed (GInputStream *stream);
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GLIB_AVAILABLE_IN_ALL
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gboolean g_input_stream_has_pending (GInputStream *stream);
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GLIB_AVAILABLE_IN_ALL
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gboolean g_input_stream_set_pending (GInputStream *stream,
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GError **error);
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GLIB_AVAILABLE_IN_ALL
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void g_input_stream_clear_pending (GInputStream *stream);
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G_END_DECLS
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#endif /* __G_INPUT_STREAM_H__ */
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