1 /*- 2 * Copyright (c) 2011 NetApp, 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 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #ifndef _MEVENT_H_ 30 #define _MEVENT_H_ 31 32 enum ev_type { 33 EVF_READ, 34 EVF_WRITE, 35 EVF_READ_ET, 36 EVF_WRITE_ET, 37 EVF_TIMER, /* Not supported yet */ 38 EVF_SIGNAL /* Not supported yet */ 39 }; 40 41 struct mevent; 42 43 struct mevent *mevent_add(int fd, enum ev_type type, 44 void (*run)(int, enum ev_type, void *), void *param, 45 void (*teardown)(void *), void *teardown_param); 46 int mevent_enable(struct mevent *evp); 47 int mevent_disable(struct mevent *evp); 48 int mevent_delete(struct mevent *evp); 49 int mevent_delete_close(struct mevent *evp); 50 int mevent_notify(void); 51 52 void mevent_dispatch(void); 53 int mevent_init(void); 54 void mevent_deinit(void); 55 56 #define list_foreach_safe(var, head, field, tvar) \ 57 for ((var) = LIST_FIRST((head)); \ 58 (var) && ((tvar) = LIST_NEXT((var), field), 1);\ 59 (var) = (tvar)) 60 61 #endif /* _MEVENT_H_ */ 62