diff options
Diffstat (limited to 'contrib/apr-util/buckets/apr_buckets_mmap.c')
-rw-r--r-- | contrib/apr-util/buckets/apr_buckets_mmap.c | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/contrib/apr-util/buckets/apr_buckets_mmap.c b/contrib/apr-util/buckets/apr_buckets_mmap.c deleted file mode 100644 index 19de291b5332..000000000000 --- a/contrib/apr-util/buckets/apr_buckets_mmap.c +++ /dev/null @@ -1,144 +0,0 @@ -/* 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" - -#if APR_HAS_MMAP - -static apr_status_t mmap_bucket_read(apr_bucket *b, const char **str, - apr_size_t *length, apr_read_type_e block) -{ - apr_bucket_mmap *m = b->data; - apr_status_t ok; - void *addr; - - if (!m->mmap) { - /* the apr_mmap_t was already cleaned up out from under us */ - return APR_EINVAL; - } - - ok = apr_mmap_offset(&addr, m->mmap, b->start); - if (ok != APR_SUCCESS) { - return ok; - } - *str = addr; - *length = b->length; - return APR_SUCCESS; -} - -static apr_status_t mmap_bucket_cleanup(void *data) -{ - /* the apr_mmap_t is about to disappear out from under us, so we - * have no choice but to pretend it doesn't exist anymore. the - * refcount is now useless because there's nothing to refer to - * anymore. so the only valid action on any remaining referrer - * is to delete it. no more reads, no more anything. */ - apr_bucket_mmap *m = data; - - m->mmap = NULL; - return APR_SUCCESS; -} - -static void mmap_bucket_destroy(void *data) -{ - apr_bucket_mmap *m = data; - - if (apr_bucket_shared_destroy(m)) { - if (m->mmap) { - apr_pool_cleanup_kill(m->mmap->cntxt, m, mmap_bucket_cleanup); - apr_mmap_delete(m->mmap); - } - apr_bucket_free(m); - } -} - -/* - * XXX: are the start and length arguments useful? - */ -APU_DECLARE(apr_bucket *) apr_bucket_mmap_make(apr_bucket *b, apr_mmap_t *mm, - apr_off_t start, - apr_size_t length) -{ - apr_bucket_mmap *m; - - m = apr_bucket_alloc(sizeof(*m), b->list); - m->mmap = mm; - - apr_pool_cleanup_register(mm->cntxt, m, mmap_bucket_cleanup, - apr_pool_cleanup_null); - - b = apr_bucket_shared_make(b, m, start, length); - b->type = &apr_bucket_type_mmap; - - return b; -} - - -APU_DECLARE(apr_bucket *) apr_bucket_mmap_create(apr_mmap_t *mm, - apr_off_t start, - apr_size_t length, - 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_mmap_make(b, mm, start, length); -} - -static apr_status_t mmap_bucket_setaside(apr_bucket *b, apr_pool_t *p) -{ - apr_bucket_mmap *m = b->data; - apr_mmap_t *mm = m->mmap; - apr_mmap_t *new_mm; - apr_status_t ok; - - if (!mm) { - /* the apr_mmap_t was already cleaned up out from under us */ - return APR_EINVAL; - } - - /* shortcut if possible */ - if (apr_pool_is_ancestor(mm->cntxt, p)) { - return APR_SUCCESS; - } - - /* duplicate apr_mmap_t into new pool */ - ok = apr_mmap_dup(&new_mm, mm, p); - if (ok != APR_SUCCESS) { - return ok; - } - - /* decrement refcount on old apr_bucket_mmap */ - mmap_bucket_destroy(m); - - /* create new apr_bucket_mmap pointing to new apr_mmap_t */ - apr_bucket_mmap_make(b, new_mm, b->start, b->length); - - return APR_SUCCESS; -} - -APU_DECLARE_DATA const apr_bucket_type_t apr_bucket_type_mmap = { - "MMAP", 5, APR_BUCKET_DATA, - mmap_bucket_destroy, - mmap_bucket_read, - mmap_bucket_setaside, - apr_bucket_shared_split, - apr_bucket_shared_copy -}; - -#endif |