geom.h revision 9663:ace9a2ac3683 
1/*
2    libparted - a library for manipulating disk partitions
3    Copyright (C) 1998-2001, 2005, 2006, 2007 Free Software Foundation, Inc.
4
5    This program is free software; you can redistribute it and/or modify
6    it under the terms of the GNU General Public License as published by
7    the Free Software Foundation; either version 3 of the License, or
8    (at your option) any later version.
9
10    This program is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13    GNU General Public License for more details.
14
15    You should have received a copy of the GNU General Public License
16    along with this program.  If not, see <http://www.gnu.org/licenses/>.
17*/
18
19/**
20 * \addtogroup PedGeometry
21 * @{
22 */
23
24/** \file geom.h */
25
26#ifndef PED_GEOM_H_INCLUDED
27#define PED_GEOM_H_INCLUDED
28
29#include <parted/device.h>
30#include <parted/timer.h>
31
32typedef struct _PedGeometry	PedGeometry;
33
34/**
35 * Geometry of the partition
36 */
37struct _PedGeometry {
38	PedDevice*		dev;
39	PedSector		start;
40	PedSector		length;
41	PedSector		end;
42};
43
44extern int ped_geometry_init (PedGeometry* geom, const PedDevice* dev,
45			      PedSector start, PedSector length);
46extern PedGeometry* ped_geometry_new (const PedDevice* dev, PedSector start,
47				      PedSector length);
48extern PedGeometry* ped_geometry_duplicate (const PedGeometry* geom);
49extern PedGeometry* ped_geometry_intersect (const PedGeometry* a,
50	       				    const PedGeometry* b);
51extern void ped_geometry_destroy (PedGeometry* geom);
52extern int ped_geometry_set (PedGeometry* geom, PedSector start,
53			     PedSector length);
54extern int ped_geometry_set_start (PedGeometry* geom, PedSector start);
55extern int ped_geometry_set_end (PedGeometry* geom, PedSector end);
56extern int ped_geometry_test_overlap (const PedGeometry* a,
57	       			      const PedGeometry* b);
58extern int ped_geometry_test_inside (const PedGeometry* a,
59				     const PedGeometry* b);
60extern int ped_geometry_test_equal (const PedGeometry* a, const PedGeometry* b);
61extern int ped_geometry_test_sector_inside (const PedGeometry* geom,
62	       				    PedSector sect);
63
64extern int ped_geometry_read (const PedGeometry* geom, void* buffer,
65			      PedSector offset, PedSector count);
66extern int ped_geometry_write (PedGeometry* geom, const void* buffer,
67			       PedSector offset, PedSector count);
68extern PedSector ped_geometry_check (PedGeometry* geom, void* buffer,
69				     PedSector buffer_size, PedSector offset,
70				     PedSector granularity, PedSector count,
71				     PedTimer* timer);
72extern int ped_geometry_sync (PedGeometry* geom);
73extern int ped_geometry_sync_fast (PedGeometry* geom);
74
75/* returns -1 if "sector" is not within dest's space. */
76extern PedSector ped_geometry_map (const PedGeometry* dst,
77				   const PedGeometry* src,
78				   PedSector sector);
79
80#endif /* PED_GEOM_H_INCLUDED */
81
82/** @} */
83
84