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GFileDescriptorBased: New interface

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New interface for file descriptor based io object. The interface
is only exported on unix based systems. See bug 604086.
This commit is contained in:
Christian Kellner 2010-02-07 14:51:01 +01:00
parent 3840151012
commit 4536a4adbc
4 changed files with 139 additions and 0 deletions
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3
gio/Makefile.am
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@ -157,6 +157,7 @@ unix_sources = \
giounixincludedir=$(includedir)/gio-unix-2.0/gio
giounixinclude_HEADERS = \
gdesktopappinfo.h \
gfiledescriptorbased.h \
gunixconnection.h \
gunixmounts.h \
gunixfdlist.h \
@ -210,6 +211,8 @@ libgio_2_0_la_SOURCES = \
gfile.c \
gfileattribute.c \
gfileattribute-priv.h \
gfiledescriptorbased.h \
gfiledescriptorbased.c \
gfileenumerator.c \
gfileicon.c \
gfileinfo.c \

72
gio/gfiledescriptorbased.c Normal file
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@ -0,0 +1,72 @@
/* GIO - GLib Input, Output and Streaming Library
*
* Copyright (C) 2010 Christian Kellner
*
* 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 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, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: Christian Kellner <gicmo@gnome.org>
*/
#include "config.h"
#include "gfiledescriptorbased.h"
#include "glibintl.h"
#include "gioalias.h"
/**
* SECTION:gfile_descriptor_based
* @short_description: Stream seeking interface
* @include: gio/gio.h
* @see_also: #GInputStream, #GOutputStream
*
* #GFileDescriptorBased is implemented by streams (implementations of
* #GInputStream or #GOutputStream) that are based on file descriptors.
*
* Since: 2.24
*
**/
typedef GFileDescriptorBasedIface GFileDescriptorBasedInterface;
G_DEFINE_INTERFACE (GFileDescriptorBased, g_file_descriptor_based, G_TYPE_OBJECT)
static void
g_file_descriptor_based_default_init (GFileDescriptorBasedInterface *iface)
{
}
/**
* g_file_descriptor_based_get_fd:
* @fd_based: a #GFileDescriptorBased.
*
* Gets the underlying file descriptor.
*
* Returns: The file descriptor
*
* Since: 2.24
**/
int
g_file_descriptor_based_get_fd (GFileDescriptorBased *fd_based)
{
GFileDescriptorBasedIface *iface;
g_return_val_if_fail (G_IS_FILE_DESCRIPTOR_BASED (fd_based), 0);
iface = G_FILE_DESCRIPTOR_BASED_GET_IFACE (fd_based);
return (* iface->get_fd) (fd_based);
}

63
gio/gfiledescriptorbased.h Normal file
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@ -0,0 +1,63 @@
/* GIO - GLib Input, Output and Streaming Library
*
* Copyright (C) 2010 Christian Kellner
*
* 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 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, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: Christian Kellner <gicmo@gnome.org>
*/
#ifndef __G_FILE_DESCRIPTOR_BASED_H__
#define __G_FILE_DESCRIPTOR_BASED_H__
#include <gio/giotypes.h>
G_BEGIN_DECLS
#define G_TYPE_FILE_DESCRIPTOR_BASED (g_file_descriptor_based_get_type ())
#define G_FILE_DESCRIPTOR_BASED(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), G_TYPE_FILE_DESCRIPTOR_BASED, GFileDescriptorBased))
#define G_IS_FILE_DESCRIPTOR_BASED(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), G_TYPE_FILE_DESCRIPTOR_BASED))
#define G_FILE_DESCRIPTOR_BASED_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), G_TYPE_FILE_DESCRIPTOR_BASED, GFileDescriptorBasedIface))
/**
* GFileDescriptorBased:
*
* An interface for file descriptor based io objects.
**/
typedef struct _GFileDescriptorBasedIface GFileDescriptorBasedIface;
/**
* GFileDescriptorBasedIface:
* @g_iface: The parent interface.
*
**/
struct _GFileDescriptorBasedIface
{
GTypeInterface g_iface;
/* Virtual Table */
int (*get_fd) (GFileDescriptorBased *fd_based);
};
GType g_file_descriptor_based_get_type (void) G_GNUC_CONST;
int g_file_descriptor_based_get_fd (GFileDescriptorBased *fd_based);
G_END_DECLS
#endif /* __G_FILE_DESCRIPTOR_BASED_H__ */

1
gio/giotypes.h
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@ -76,6 +76,7 @@ typedef struct _GFileInfo GFileInfo;
typedef struct _GFileAttributeMatcher GFileAttributeMatcher;
typedef struct _GFileAttributeInfo GFileAttributeInfo;
typedef struct _GFileAttributeInfoList GFileAttributeInfoList;
typedef struct _GFileDescriptorBased GFileDescriptorBased;
typedef struct _GFileInputStream GFileInputStream;
typedef struct _GFileOutputStream GFileOutputStream;
typedef struct _GFileIOStream GFileIOStream;