1 /* 2 * Copyright (c) 2009 Eric Faurot <eric@openbsd.org> 3 * 4 * Permission to use, copy, modify, and distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #ifndef __IMSGEV_H__ 18 #define __IMSGEV_H__ 19 20 #include <event.h> 21 #include <imsg.h> 22 23 #define IMSG_LEN(m) ((m)->hdr.len - IMSG_HEADER_SIZE) 24 25 struct imsgev { 26 struct imsgbuf ibuf; 27 void (*handler)(int, short, void *); 28 struct event ev; 29 void *data; 30 short events; 31 int terminate; 32 void (*callback)(struct imsgev *, int, struct imsg *); 33 void (*needfd)(struct imsgev *); 34 }; 35 36 #define IMSGEV_IMSG 0 37 #define IMSGEV_DONE 1 38 #define IMSGEV_EREAD 2 39 #define IMSGEV_EWRITE 3 40 #define IMSGEV_EIMSG 4 41 42 void imsgev_init(struct imsgev *, int, void *, void (*)(struct imsgev *, 43 int, struct imsg *), void (*)(struct imsgev *)); 44 int imsgev_compose(struct imsgev *, u_int16_t, u_int32_t, u_int32_t, int, 45 void *, u_int16_t); 46 void imsgev_close(struct imsgev *); 47 void imsgev_clear(struct imsgev *); 48 49 #endif /* __IMSGEV_H__ */ 50