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/* GIO - GLib Input, Output and Streaming Library * * Copyright (C) 2006-2007 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/>. * * Author: Alexander Larsson <alexl@redhat.com> */ #ifndef __G_INPUT_STREAM_H__ #define __G_INPUT_STREAM_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_INPUT_STREAM (g_input_stream_get_type ()) #define G_INPUT_STREAM(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_INPUT_STREAM, GInputStream)) #define G_INPUT_STREAM_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), G_TYPE_INPUT_STREAM, GInputStreamClass)) #define G_IS_INPUT_STREAM(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_INPUT_STREAM)) #define G_IS_INPUT_STREAM_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), G_TYPE_INPUT_STREAM)) #define G_INPUT_STREAM_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), G_TYPE_INPUT_STREAM, GInputStreamClass)) /** * GInputStream: * * Base class for streaming input operations. **/ typedef struct _GInputStreamClass GInputStreamClass; typedef struct _GInputStreamPrivate GInputStreamPrivate; struct _GInputStream { GObject parent_instance; /*< private >*/ GInputStreamPrivate *priv; }; struct _GInputStreamClass { GObjectClass parent_class; /* Sync ops: */ gssize (* read_fn) (GInputStream *stream, void *buffer, gsize count, GCancellable *cancellable, GError **error); gssize (* skip) (GInputStream *stream, gsize count, GCancellable *cancellable, GError **error); gboolean (* close_fn) (GInputStream *stream, GCancellable *cancellable, GError **error); /* Async ops: (optional in derived classes) */ void (* read_async) (GInputStream *stream, void *buffer, gsize count, int io_priority, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data); gssize (* read_finish) (GInputStream *stream, GAsyncResult *result, GError **error); void (* skip_async) (GInputStream *stream, gsize count, int io_priority, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data); gssize (* skip_finish) (GInputStream *stream, GAsyncResult *result, GError **error); void (* close_async) (GInputStream *stream, int io_priority, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data); gboolean (* close_finish) (GInputStream *stream, GAsyncResult *result, GError **error); /*< private >*/ /* Padding for future expansion */ void (*_g_reserved1) (void); void (*_g_reserved2) (void); void (*_g_reserved3) (void); void (*_g_reserved4) (void); void (*_g_reserved5) (void); }; GLIB_AVAILABLE_IN_ALL GType g_input_stream_get_type (void) G_GNUC_CONST; GLIB_AVAILABLE_IN_ALL gssize g_input_stream_read (GInputStream *stream, void *buffer, gsize count, GCancellable *cancellable, GError **error); GLIB_AVAILABLE_IN_ALL gboolean g_input_stream_read_all (GInputStream *stream, void *buffer, gsize count, gsize *bytes_read, GCancellable *cancellable, GError **error); GLIB_AVAILABLE_IN_2_34 GBytes *g_input_stream_read_bytes (GInputStream *stream, gsize count, GCancellable *cancellable, GError **error); GLIB_AVAILABLE_IN_ALL gssize g_input_stream_skip (GInputStream *stream, gsize count, GCancellable *cancellable, GError **error); GLIB_AVAILABLE_IN_ALL gboolean g_input_stream_close (GInputStream *stream, GCancellable *cancellable, GError **error); GLIB_AVAILABLE_IN_ALL void g_input_stream_read_async (GInputStream *stream, void *buffer, gsize count, int io_priority, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data); GLIB_AVAILABLE_IN_ALL gssize g_input_stream_read_finish (GInputStream *stream, GAsyncResult *result, GError **error); GLIB_AVAILABLE_IN_2_44 void g_input_stream_read_all_async (GInputStream *stream, void *buffer, gsize count, int io_priority, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data); GLIB_AVAILABLE_IN_2_44 gboolean g_input_stream_read_all_finish (GInputStream *stream, GAsyncResult *result, gsize *bytes_read, GError **error); GLIB_AVAILABLE_IN_2_34 void g_input_stream_read_bytes_async (GInputStream *stream, gsize count, int io_priority, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data); GLIB_AVAILABLE_IN_2_34 GBytes *g_input_stream_read_bytes_finish (GInputStream *stream, GAsyncResult *result, GError **error); GLIB_AVAILABLE_IN_ALL void g_input_stream_skip_async (GInputStream *stream, gsize count, int io_priority, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data); GLIB_AVAILABLE_IN_ALL gssize g_input_stream_skip_finish (GInputStream *stream, GAsyncResult *result, GError **error); GLIB_AVAILABLE_IN_ALL void g_input_stream_close_async (GInputStream *stream, int io_priority, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data); GLIB_AVAILABLE_IN_ALL gboolean g_input_stream_close_finish (GInputStream *stream, GAsyncResult *result, GError **error); /* For implementations: */ GLIB_AVAILABLE_IN_ALL gboolean g_input_stream_is_closed (GInputStream *stream); GLIB_AVAILABLE_IN_ALL gboolean g_input_stream_has_pending (GInputStream *stream); GLIB_AVAILABLE_IN_ALL gboolean g_input_stream_set_pending (GInputStream *stream, GError **error); GLIB_AVAILABLE_IN_ALL void g_input_stream_clear_pending (GInputStream *stream); G_END_DECLS #endif /* __G_INPUT_STREAM_H__ */