dc2ecebec9
Wasabi Systems, Inc. libisns(3) is an implementation of the iSNS protocol as defined in IETF RFC 4171, exporting an API that simplifies Internet Storage Name Service (iSNS) client implementations.
98 lines
3.0 KiB
C
98 lines
3.0 KiB
C
/* $NetBSD: isns_task.h,v 1.1.1.1 2011/01/16 01:22:50 agc Exp $ */
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/*-
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* Copyright (c) 2004,2009 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Wasabi Systems, Inc.
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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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* isns_task.h
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*/
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#ifndef _ISNS_TASK_H_
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#define _ISNS_TASK_H_
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#include <sys/event.h>
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#define ISNS_TASK_DISCOVER_SERVER 0
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#define ISNS_TASK_RECONNECT_SERVER 1
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#define ISNS_TASK_SEND_PDU 2
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#define ISNS_TASK_INIT_SOCKET_IO 3
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#define ISNS_TASK_INIT_REFRESH 4
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#define ISNS_NUM_TASKS 5
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union isns_task_var_u {
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struct {
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struct isns_trans_s *trans_p;
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struct isns_pdu_s *pdu_p;
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} send_pdu;
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struct {
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struct addrinfo *ai_p;
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} reconnect_server;
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struct {
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isns_socket_t sd;
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struct addrinfo *ai_p;
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} init_socket_io;
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struct {
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struct isns_refresh_s *ref_p;
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} init_refresh;
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void *data_p;
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};
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struct isns_task_s {
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uint8_t task_type;
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struct isns_config_s *cfg_p;
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union isns_task_var_u var;
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int waitable;
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pthread_mutex_t wait_mutex;
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pthread_cond_t wait_condvar;
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int wait_ref_count;
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SIMPLEQ_ENTRY(isns_task_s) taskq_entry;
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};
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typedef void (isns_task_handler)(struct isns_task_s *);
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void isns_run_task(struct isns_task_s *);
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void isns_end_task(struct isns_task_s *);
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int isns_wait_task(struct isns_task_s *, const struct timespec *);
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struct isns_task_s *isns_new_task(struct isns_config_s *, uint8_t, int);
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void isns_free_task(struct isns_task_s *);
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void isns_taskq_insert_tail(struct isns_config_s *, struct isns_task_s *);
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void isns_taskq_insert_head(struct isns_config_s *, struct isns_task_s *);
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struct isns_task_s *isns_taskq_remove(struct isns_config_s *);
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struct isns_task_s *isns_taskq_remove_trans(struct isns_config_s *, uint16_t);
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#endif /* !_ISNS_TASK_H_ */
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