/* ====================================================================
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2000-2003 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. 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.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Apache" and "Apache Software Foundation" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact apache@apache.org.
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 * 5. Products derived from this software may not be called "Apache",
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 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */

#include "apr_buckets.h"

APU_DECLARE_NONSTD(apr_status_t) apr_bucket_shared_split(apr_bucket *a,
                                                         apr_size_t point)
{
    apr_bucket_refcount *r = a->data;
    apr_status_t rv;

    if ((rv = apr_bucket_simple_split(a, point)) != APR_SUCCESS) {
        return rv;
    }
    r->refcount++;

    return APR_SUCCESS;
}

APU_DECLARE_NONSTD(apr_status_t) apr_bucket_shared_copy(apr_bucket *a,
                                                        apr_bucket **b)
{
    apr_bucket_refcount *r = a->data;

    apr_bucket_simple_copy(a, b);
    r->refcount++;

    return APR_SUCCESS;
}

APU_DECLARE(int) apr_bucket_shared_destroy(void *data)
{
    apr_bucket_refcount *r = data;
    r->refcount--;
    return (r->refcount == 0);
}

APU_DECLARE(apr_bucket *) apr_bucket_shared_make(apr_bucket *b, void *data,
                                                 apr_off_t start,
                                                 apr_size_t length)
{
    apr_bucket_refcount *r = data;

    b->data   = r;
    b->start  = start;
    b->length = length;
    /* caller initializes the type field */
    r->refcount = 1;

    return b;
}
