| /* 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 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "apr_buckets.h" |
| #define APR_WANT_MEMFUNC |
| #include "apr_want.h" |
| |
| static apr_status_t heap_bucket_read(apr_bucket *b, const char **str, |
| apr_size_t *len, apr_read_type_e block) |
| { |
| apr_bucket_heap *h = b->data; |
| |
| *str = h->base + b->start; |
| *len = b->length; |
| return APR_SUCCESS; |
| } |
| |
| static void heap_bucket_destroy(void *data) |
| { |
| apr_bucket_heap *h = data; |
| |
| if (apr_bucket_shared_destroy(h)) { |
| (*h->free_func)(h->base); |
| apr_bucket_free(h); |
| } |
| } |
| |
| /* Warning: if you change this function, be sure to |
| * change apr_bucket_pool_make() too! */ |
| APU_DECLARE(apr_bucket *) apr_bucket_heap_make(apr_bucket *b, const char *buf, |
| apr_size_t length, |
| void (*free_func)(void *data)) |
| { |
| apr_bucket_heap *h; |
| |
| h = apr_bucket_alloc(sizeof(*h), b->list); |
| |
| if (!free_func) { |
| h->alloc_len = length; |
| h->base = apr_bucket_alloc(h->alloc_len, b->list); |
| if (h->base == NULL) { |
| apr_bucket_free(h); |
| return NULL; |
| } |
| h->free_func = apr_bucket_free; |
| memcpy(h->base, buf, length); |
| } |
| else { |
| /* XXX: we lose the const qualifier here which indicates |
| * there's something screwy with the API... |
| */ |
| h->base = (char *) buf; |
| h->alloc_len = length; |
| h->free_func = free_func; |
| } |
| |
| b = apr_bucket_shared_make(b, h, 0, length); |
| b->type = &apr_bucket_type_heap; |
| |
| return b; |
| } |
| |
| APU_DECLARE(apr_bucket *) apr_bucket_heap_create(const char *buf, |
| apr_size_t length, |
| void (*free_func)(void *data), |
| apr_bucket_alloc_t *list) |
| { |
| apr_bucket *b = apr_bucket_alloc(sizeof(*b), list); |
| |
| APR_BUCKET_INIT(b); |
| b->free = apr_bucket_free; |
| b->list = list; |
| return apr_bucket_heap_make(b, buf, length, free_func); |
| } |
| |
| APU_DECLARE_DATA const apr_bucket_type_t apr_bucket_type_heap = { |
| "HEAP", 5, APR_BUCKET_DATA, |
| heap_bucket_destroy, |
| heap_bucket_read, |
| apr_bucket_setaside_noop, |
| apr_bucket_shared_split, |
| apr_bucket_shared_copy |
| }; |