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/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2000 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.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR
* ITS 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.
* ====================================================================
*
* 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 "ap_buckets.h"
#include <stdlib.h>
static apr_status_t mmap_read(ap_bucket *b, const char **str,
apr_size_t *length, ap_read_type block)
{
ap_bucket_shared *s = b->data;
ap_bucket_mmap *m = s->data;
apr_status_t ok;
void *addr;
ok = apr_mmap_offset(&addr, m->mmap, s->start);
if (ok != APR_SUCCESS) {
return ok;
}
*str = addr;
*length = s->end - s->start;
return APR_SUCCESS;
}
static void mmap_destroy(void *data)
{
ap_bucket_mmap *m;
m = ap_bucket_destroy_shared(data);
if (m == NULL) {
return;
}
free(m);
}
/*
* XXX: are the start and length arguments useful?
*/
APR_DECLARE(ap_bucket *) ap_bucket_make_mmap(ap_bucket *b,
apr_mmap_t *mm, apr_off_t start, apr_size_t length)
{
ap_bucket_mmap *m;
m = malloc(sizeof(*m));
if (m == NULL) {
return NULL;
}
m->mmap = mm;
b = ap_bucket_make_shared(b, m, start, start+length);
if (b == NULL) {
free(m);
return NULL;
}
b->type = &ap_mmap_type;
return b;
}
APR_DECLARE(ap_bucket *) ap_bucket_create_mmap(
apr_mmap_t *mm, apr_off_t start, apr_size_t length)
{
ap_bucket_do_create(ap_bucket_make_mmap(b, mm, start, length));
}
const ap_bucket_type ap_mmap_type = {
"MMAP", 4,
mmap_destroy,
mmap_read,
ap_bucket_setaside_notimpl,
ap_bucket_split_shared
};
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