Import Upstream version 2.72.4

2023-07-04 11:23:22 +02:00 · 2023-07-04 11:23:22 +02:00 · 4ef3ff9793
commit 4ef3ff9793
2003 changed files with 1332420 additions and 0 deletions
--- a/gio/gseekable.h
+++ b/gio/gseekable.h
@ -0,0 +1,103 @@
+/* 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_SEEKABLE_H__
+#define __G_SEEKABLE_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_SEEKABLE            (g_seekable_get_type ())
+#define G_SEEKABLE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), G_TYPE_SEEKABLE, GSeekable))
+#define G_IS_SEEKABLE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), G_TYPE_SEEKABLE))
+#define G_SEEKABLE_GET_IFACE(obj)  (G_TYPE_INSTANCE_GET_INTERFACE ((obj), G_TYPE_SEEKABLE, GSeekableIface))
+
+/**
+ * GSeekable:
+ *
+ * Seek object for streaming operations.
+ **/
+typedef struct _GSeekableIface   GSeekableIface;
+
+/**
+ * GSeekableIface:
+ * @g_iface: The parent interface.
+ * @tell: Tells the current location within a stream.
+ * @can_seek: Checks if seeking is supported by the stream.
+ * @seek: Seeks to a location within a stream.
+ * @can_truncate: Checks if truncation is supported by the stream.
+ * @truncate_fn: Truncates a stream.
+ *
+ * Provides an interface for implementing seekable functionality on I/O Streams.
+ **/
+struct _GSeekableIface
+{
+  GTypeInterface g_iface;
+
+  /* Virtual Table */
+
+  goffset     (* tell)	         (GSeekable    *seekable);
+
+  gboolean    (* can_seek)       (GSeekable    *seekable);
+  gboolean    (* seek)	         (GSeekable    *seekable,
+				  goffset       offset,
+				  GSeekType     type,
+				  GCancellable *cancellable,
+				  GError      **error);
+
+  gboolean    (* can_truncate)   (GSeekable    *seekable);
+  gboolean    (* truncate_fn)    (GSeekable    *seekable,
+				  goffset       offset,
+				  GCancellable *cancellable,
+				  GError       **error);
+
+  /* TODO: Async seek/truncate */
+};
+
+GLIB_AVAILABLE_IN_ALL
+GType    g_seekable_get_type     (void) G_GNUC_CONST;
+
+GLIB_AVAILABLE_IN_ALL
+goffset  g_seekable_tell         (GSeekable     *seekable);
+GLIB_AVAILABLE_IN_ALL
+gboolean g_seekable_can_seek     (GSeekable     *seekable);
+GLIB_AVAILABLE_IN_ALL
+gboolean g_seekable_seek         (GSeekable     *seekable,
+				  goffset        offset,
+				  GSeekType      type,
+				  GCancellable  *cancellable,
+				  GError       **error);
+GLIB_AVAILABLE_IN_ALL
+gboolean g_seekable_can_truncate (GSeekable     *seekable);
+GLIB_AVAILABLE_IN_ALL
+gboolean g_seekable_truncate     (GSeekable     *seekable,
+				  goffset        offset,
+				  GCancellable  *cancellable,
+				  GError       **error);
+
+G_END_DECLS
+
+
+#endif /* __G_SEEKABLE_H__ */