state_utils.c

Go to the documentation of this file.

/***************************************************************************
 *   Copyright (C) 2004, 2006 Symbian Software Ltd.                        *
 *   All rights reserved.                                                  *
 *                                                                         *
 *   Contributed originally by Mike Kinghan, imk@strudl.org                *
 *                                                                         *
 *   Redistribution and use in source and binary forms, with or without    *
 *   modification, are permitted provided that the following conditions    *
 *   are met:                                                              *
 *                                                                         *
 *   Redistributions of source code must retain the above copyright        *
 *   notice, this list of conditions and the following disclaimer.         *
 *                                                                         *
 *   Redistributions in binary form must reproduce the above copyright     *
 *   notice, this list of conditions and the following disclaimer in the   *
 *   documentation and/or other materials provided with the distribution.  *
 *                                                                         *
 *   Neither the name of Symbian Software Ltd. nor the names of its        *
 *   contributors may be used to endorse or promote products derived from  *
 *   this software without specific prior written permission.              *
 *                                                                         *
 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS   *
 *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT     *
 *   LIMITED TO, THE IMPLIED WARRANTIES OF  MERCHANTABILITY AND FITNESS    *
 *   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE        *
 *   COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,   *
 *   INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,  *
 *   BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS *
 *   OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED    *
 *   AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,*
 *   OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF *
 *   THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH  *
 *   DAMAGE.                                                               *
 *                                                                         *
 **************************************************************************/

#include "memory.h"

#ifdef STATE_ALLOCATOR
#undef STATE_ALLOCATOR

#define STATE_ALLOCATOR         (zallocate)
#endif
#include "state_utils.h"


void
component_initor(
    bool is_static,
    bool is_zero_initable,
    void **state,
    void **public_state,
    void const *initialiser,
    size_t size,
    void (*user_init)())
{
    if (!is_static) {
        assert(*state == NULL);
        *state = zallocate(size);
        *public_state = *state;
    }
    if (is_zero_initable) {
        memset(*state,0,size);
    } else if (initialiser) {
        memcpy(*state,initialiser,size);
    } else {
        assert(user_init);
        user_init(*state);
    }
}

void
component_finitor(
    bool is_static,
    void **state,
    void **public_state,
    void (*user_finis)())
{
    if (user_finis) {
        assert(*state);
        user_finis(*state);
    }
    if (!is_static) {
        assert(*state);
        release(state);
        *public_state = NULL;
    }
}
/* EOF*/