1 /* 2 * Copyright (c) 2008, XenSource Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * * Neither the name of XenSource Inc. nor the names of its contributors 13 * may be used to endorse or promote products derived from this software 14 * without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 20 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 21 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 23 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 24 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 25 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 26 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 #ifndef _TAPDISK_INTERFACE_H_ 29 #define _TAPDISK_INTERFACE_H_ 30 31 #include "tapdisk.h" 32 #include "tapdisk-queue.h" 33 34 int td_open(td_image_t *); 35 int __td_open(td_image_t *, td_disk_info_t *); 36 int td_load(td_image_t *); 37 int td_close(td_image_t *); 38 int td_get_parent_id(td_image_t *, td_disk_id_t *); 39 int td_validate_parent(td_image_t *, td_image_t *); 40 41 void td_queue_write(td_image_t *, td_request_t); 42 void td_queue_read(td_image_t *, td_request_t); 43 void td_forward_request(td_request_t); 44 void td_complete_request(td_request_t, int); 45 46 void td_debug(td_image_t *); 47 48 void td_queue_tiocb(td_driver_t *, struct tiocb *); 49 void td_prep_read(struct tiocb *, int, char *, size_t, 50 long long, td_queue_callback_t, void *); 51 void td_prep_write(struct tiocb *, int, char *, size_t, 52 long long, td_queue_callback_t, void *); 53 54 #endif 55