1 /* $NetBSD: isns_task.h,v 1.1.1.1 2011/01/16 01:22:50 agc Exp $ */ 2 3 /*- 4 * Copyright (c) 2004,2009 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Wasabi Systems, Inc. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 /* 32 * isns_task.h 33 */ 34 35 #ifndef _ISNS_TASK_H_ 36 #define _ISNS_TASK_H_ 37 38 #include <sys/event.h> 39 40 #define ISNS_TASK_DISCOVER_SERVER 0 41 #define ISNS_TASK_RECONNECT_SERVER 1 42 #define ISNS_TASK_SEND_PDU 2 43 #define ISNS_TASK_INIT_SOCKET_IO 3 44 #define ISNS_TASK_INIT_REFRESH 4 45 #define ISNS_NUM_TASKS 5 46 47 48 union isns_task_var_u { 49 struct { 50 struct isns_trans_s *trans_p; 51 struct isns_pdu_s *pdu_p; 52 } send_pdu; 53 54 struct { 55 struct addrinfo *ai_p; 56 } reconnect_server; 57 58 struct { 59 isns_socket_t sd; 60 struct addrinfo *ai_p; 61 } init_socket_io; 62 63 struct { 64 struct isns_refresh_s *ref_p; 65 } init_refresh; 66 67 void *data_p; 68 }; 69 70 struct isns_task_s { 71 uint8_t task_type; 72 struct isns_config_s *cfg_p; 73 union isns_task_var_u var; 74 75 int waitable; 76 pthread_mutex_t wait_mutex; 77 pthread_cond_t wait_condvar; 78 int wait_ref_count; 79 80 SIMPLEQ_ENTRY(isns_task_s) taskq_entry; 81 }; 82 83 typedef void (isns_task_handler)(struct isns_task_s *); 84 85 void isns_run_task(struct isns_task_s *); 86 void isns_end_task(struct isns_task_s *); 87 int isns_wait_task(struct isns_task_s *, const struct timespec *); 88 89 struct isns_task_s *isns_new_task(struct isns_config_s *, uint8_t, int); 90 void isns_free_task(struct isns_task_s *); 91 void isns_taskq_insert_tail(struct isns_config_s *, struct isns_task_s *); 92 void isns_taskq_insert_head(struct isns_config_s *, struct isns_task_s *); 93 struct isns_task_s *isns_taskq_remove(struct isns_config_s *); 94 struct isns_task_s *isns_taskq_remove_trans(struct isns_config_s *, uint16_t); 95 96 97 #endif /* !_ISNS_TASK_H_ */ 98