1/* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements.  See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License.  You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "apr_buckets.h"
18
19APU_DECLARE_NONSTD(apr_status_t) apr_bucket_shared_split(apr_bucket *a,
20                                                         apr_size_t point)
21{
22    apr_bucket_refcount *r = a->data;
23    apr_status_t rv;
24
25    if ((rv = apr_bucket_simple_split(a, point)) != APR_SUCCESS) {
26        return rv;
27    }
28    r->refcount++;
29
30    return APR_SUCCESS;
31}
32
33APU_DECLARE_NONSTD(apr_status_t) apr_bucket_shared_copy(apr_bucket *a,
34                                                        apr_bucket **b)
35{
36    apr_bucket_refcount *r = a->data;
37
38    apr_bucket_simple_copy(a, b);
39    r->refcount++;
40
41    return APR_SUCCESS;
42}
43
44APU_DECLARE(int) apr_bucket_shared_destroy(void *data)
45{
46    apr_bucket_refcount *r = data;
47    r->refcount--;
48    return (r->refcount == 0);
49}
50
51APU_DECLARE(apr_bucket *) apr_bucket_shared_make(apr_bucket *b, void *data,
52                                                 apr_off_t start,
53                                                 apr_size_t length)
54{
55    apr_bucket_refcount *r = data;
56
57    b->data   = r;
58    b->start  = start;
59    b->length = length;
60    /* caller initializes the type field */
61    r->refcount = 1;
62
63    return b;
64}
65