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a0f136e1c5
Use this for VHD and VMDK to avoid allocating space in the image for empty sectors. Note that this negatively affects performance because mkimg uses a temporary file for the intermediate storage. When mkimg has better internal book keeping, performance can be significantly improved.
45 lines
1.8 KiB
C
45 lines
1.8 KiB
C
/*-
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* Copyright (c) 2014 Juniper Networks, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _MKIMG_IMAGE_H_
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#define _MKIMG_IMAGE_H_
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typedef int64_t lba_t;
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int image_copyin(lba_t blk, int fd, uint64_t *sizep);
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int image_copyout(int fd);
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int image_copyout_done(int fd);
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int image_copyout_region(int fd, lba_t blk, lba_t size);
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int image_data(lba_t blk, lba_t size);
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lba_t image_get_size(void);
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int image_init(void);
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int image_set_size(lba_t blk);
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int image_write(lba_t blk, void *buf, ssize_t len);
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#endif /* _MKIMG_IMAGE_H_ */
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