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/* ====================================================================
* 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. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the Apache Software Foundation
* for use in the Apache HTTP server project (http://www.apache.org/)."
*
* 4. The names "Apache Server" 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 names without prior written
* permission of the Apache Software Foundation.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the Apache Software Foundation
* for use in the Apache HTTP server project (http://www.apache.org/)."
*
* THIS SOFTWARE IS PROVIDED BY THE Apache Software Foundation ``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 and the Apache HTTP server
* project, please see <http://www.apache.org/>.
*
*/
#ifdef BEOS
#include "../beos/mmap_h.h"
#else
#include "mmap_h.h"
#endif
#include "apr_portable.h"
#if HAVE_MMAP
ap_status_t mmap_cleanup(void *themmap)
{
struct mmap_t *mm = themmap;
int rv;
rv = munmap(mm->mm, mm->size);
if (rv == 0) {
mm->mm = (caddr_t)-1;
return APR_SUCCESS;
}
else
return errno;
}
/* ***APRDOC********************************************************
* ap_status_t ap_mmap_create(ap_mmap_t **new, ap_file_t *file, ap_off_t offset)
* Create a new mmap'ed file out of an existing APR file.
* arg 1) The newly created mmap'ed file.
* arg 2) The file turn into an mmap.
* arg 3) The offset into the file to start the data pointer at.
* arg 4) The size of the file
* arg 5) The context to use when creating the mmap.
*/
ap_status_t ap_mmap_create(ap_mmap_t **new, ap_file_t *file, ap_off_t offset,
ap_size_t size, ap_context_t *cont)
{
caddr_t mm;
if (file == NULL || file->buffered || file->filedes == -1)
return APR_EBADF;
(*new) = (struct mmap_t *)ap_palloc(cont, sizeof(struct mmap_t));
ap_seek(file, APR_SET, &offset);
mm = mmap(NULL, size, PROT_READ, MAP_SHARED, file->filedes ,0);
if (mm == (caddr_t)-1) {
/* we failed to get an mmap'd file... */
return APR_ENOMEM;
}
(*new)->mm = mm;
(*new)->size = size;
(*new)->cntxt = cont;
/* register the cleanup... */
ap_register_cleanup((*new)->cntxt, (void*)(*new), mmap_cleanup,
ap_null_cleanup);
return APR_SUCCESS;
}
/* ***APRDOC********************************************************
* ap_status_t ap_mmap_delete(ap_mmap_t *mmap)
* Remove a mmap'ed.
* arg 1) The mmap'ed file.
*/
ap_status_t ap_mmap_delete(struct mmap_t *mmap)
{
ap_status_t rv;
if (mmap->mm == (caddr_t) -1)
return APR_ENOENT;
if ((rv = mmap_cleanup(mmap)) == APR_SUCCESS) {
ap_kill_cleanup(mmap->cntxt, mmap, mmap_cleanup);
return APR_SUCCESS;
}
return rv;
}
#endif
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