libreoffice/cppu/inc/uno/dispatcher.h

/* -*- 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 _UNO_DISPATCHER_H_
#define _UNO_DISPATCHER_H_

#include <sal/types.h>
#include <rtl/ustring.h>
#include <uno/any2.h>

#ifdef __cplusplus
extern "C"
{
#endif

struct _typelib_TypeDescription;
struct _uno_Interface;

/** Function pointer declaration for the binary C uno dispatch function. Any pure out or return
    value will be constructed by the callee, iff no exception is signalled.
    If an exception is signalled, the any *ppException is properly constructed by the callee,
    otherwise the pointer *ppException is set to 0.
    An attribute get call is indicated by a non-null return pointer.

    @param pUnoI        uno interface the call is performed on
    @param pMemberType  member type description of a method or attribute
    @param pReturn      pointer to return value memory;
                        pointer may be undefined if void method, null if attribute set call.
    @param pArgs        an array of pointers to arguments values.
                        (remark: the value of an interface reference stores a
                         uno_interface *, so you get it by *(uno_Interface **)pArgs[n])
    @param ppException  pointer to pointer to unconstructed any to signal an exception.
*/
typedef void (SAL_CALL * uno_DispatchMethod)(
    struct _uno_Interface * pUnoI,
    const struct _typelib_TypeDescription * pMemberType,
    void * pReturn,
    void * pArgs[],
    uno_Any ** ppException );

#if defined( SAL_W32)
#pragma pack(push, 8)
#endif

/** The binary C uno interface description.
*/
typedef struct _uno_Interface
{
    /** Acquires uno interface.

        @param pInterface uno interface
    */
    void (SAL_CALL * acquire)( struct _uno_Interface * pInterface );
    /** Releases uno interface.

        @param pInterface uno interface
    */
    void (SAL_CALL * release)( struct _uno_Interface * pInterface );
    /** dispatch function
    */
    uno_DispatchMethod pDispatcher;
} uno_Interface;

#if defined( SAL_W32)
#pragma pack(pop)
#endif

#ifdef __cplusplus
}
#endif

#endif

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