/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#ifndef INCLUDED_REGISTRY_REGTYPE_H
#define INCLUDED_REGISTRY_REGTYPE_H

#include <sal/types.h>

/// defines the type of a registry handle used in the C API.
typedef void*       RegHandle;

/// defines the type of a registry key handle used in the C API.
typedef void*       RegKeyHandle;

/// defines the type of a registry key value handle used in the C API.
typedef void*       RegValue;

/** defines the open/access mode of the registry.

    Two modes are valid:
    -REG_READONLY    allows readonly access
    -REG_READWRITE   allows read and write access
 */
typedef sal_uInt16  RegAccessMode;

/// Flag to specify the open mode of a registry. This mode allows readonly access.
#define REG_READONLY        0x0001
/// Flag to specify the open mode of a registry. This mode allows read and write access.
#define REG_READWRITE       0x0002

/** defines the type of a registry key.

    The registry differs between normal keys which can contain subkeys or
    a value and link keys which navigate over the linktarget to an existing
    other key (which are no longer supported).
*/
enum RegKeyType
{
    /// represents a real key
    RG_KEYTYPE,
    /// represents a link (which is no longer supported)
    RG_LINKTYPE
};

/** defines the type of a key value.

    A registry key can contain a value which has one of seven different types.
    Three simple types (long, ascii and unicode string) and a list type of
    these simple types. Furthermore a binary type which provides the possibilty
    to define own data structures and store these types in the registry. The UNO
    core reflection data is stored as a binary blob in the type registry.
 */
enum RegValueType
{
    /// The key has no value or the value type is unknown.
    RG_VALUETYPE_NOT_DEFINED,
    /// The key has a value of type long
    RG_VALUETYPE_LONG,
    /// The key has a value of type ascii string
    RG_VALUETYPE_STRING,
    /// The key has a value of type unicode string
    RG_VALUETYPE_UNICODE,
    /// The key has a value of type binary
    RG_VALUETYPE_BINARY,
    /// The key has a value of type long list
    RG_VALUETYPE_LONGLIST,
    /// The key has a value of type ascii string list
    RG_VALUETYPE_STRINGLIST,
    /// The key has a value of type unicode string list
    RG_VALUETYPE_UNICODELIST
};

/// specifies the possible error codes which can occur using the registry API.
enum RegError
{
    /// no error.
    REG_NO_ERROR,
    /// internal registry error.
    REG_INTERNAL_ERROR,

    /// registry is not open.
    REG_REGISTRY_NOT_OPEN,
    /// registry does not exists.
    REG_REGISTRY_NOT_EXISTS,
    /// registry is open with readonly access rights.
    REG_REGISTRY_READONLY,
    /// destroy a registry failed. There are may be any open keys.
    REG_DESTROY_REGISTRY_FAILED,
    /** registry cannot be opened with readwrite access because the registry is already
        open with readwrite access anywhere.
    */
    REG_CANNOT_OPEN_FOR_READWRITE,
    /** registry is in an invalid state or the registry does not point to
        a valid registry data file.
    */
    REG_INVALID_REGISTRY,

    /// the key or key handle points to an invalid key or closed key.
    REG_KEY_NOT_OPEN,
    /// the specified keyname points to a nonexisting key.
    REG_KEY_NOT_EXISTS,
    /// the key with the specified keyname cannot be created.
    REG_CREATE_KEY_FAILED,
    /// the specified key cannot be deleted. Maybe an open key handle exists to this key.
    REG_DELETE_KEY_FAILED,
    /** the keyname is invalid. This error will return if the keyname
        is NULL but should not be NULL in the context of a called function.
    */
    REG_INVALID_KEYNAME,
    /// the key is not in a valid state.
    REG_INVALID_KEY,

    /// the key has no value
    REG_VALUE_NOT_EXISTS,
    /// setting the specified value of a key failed.
    REG_SET_VALUE_FAILED,
    /// deleting of the key value failed.
    REG_DELETE_VALUE_FAILED,
    /// the key has a invalid value or the value type is unknown.
    REG_INVALID_VALUE,

    /// merging a key, the value and all subkeys failed.
    REG_MERGE_ERROR,
    /** conflicts exists during the merge process of a key. This could happen if
        the value of a key already exists and the merge process will replace it.
    */
    REG_MERGE_CONFLICT,

    /** a recursion was detected resolving different link targets (no longer
        used).
    */
    REG_DETECT_RECURSION,
    /** the link is invalid and can not be resolved (now used by all
        link-related operations, as links are no longer supported).
    */
    REG_INVALID_LINK,
    /// the specified linkname is not valid (no longer used).
    REG_INVALID_LINKNAME,
    /// the linknane is not valid (no longer used).
    REG_INVALID_LINKTARGET,
    /// the link target points to a nonexisting key (no longer used).
    REG_LINKTARGET_NOT_EXIST,
    /// the reserved buffer for the resolved keyname is to small.
    REG_BUFFERSIZE_TOSMALL
};

/// specify the calling convention for the registry API
#define REGISTRY_CALLTYPE   SAL_CALL

#endif

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */