NetBSD/lib/libisns/isns_task.h

98 lines
3.0 KiB
C

/* $NetBSD: isns_task.h,v 1.1.1.1 2011/01/16 01:22:50 agc Exp $ */
/*-
* Copyright (c) 2004,2009 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Wasabi Systems, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* isns_task.h
*/
#ifndef _ISNS_TASK_H_
#define _ISNS_TASK_H_
#include <sys/event.h>
#define ISNS_TASK_DISCOVER_SERVER 0
#define ISNS_TASK_RECONNECT_SERVER 1
#define ISNS_TASK_SEND_PDU 2
#define ISNS_TASK_INIT_SOCKET_IO 3
#define ISNS_TASK_INIT_REFRESH 4
#define ISNS_NUM_TASKS 5
union isns_task_var_u {
struct {
struct isns_trans_s *trans_p;
struct isns_pdu_s *pdu_p;
} send_pdu;
struct {
struct addrinfo *ai_p;
} reconnect_server;
struct {
isns_socket_t sd;
struct addrinfo *ai_p;
} init_socket_io;
struct {
struct isns_refresh_s *ref_p;
} init_refresh;
void *data_p;
};
struct isns_task_s {
uint8_t task_type;
struct isns_config_s *cfg_p;
union isns_task_var_u var;
int waitable;
pthread_mutex_t wait_mutex;
pthread_cond_t wait_condvar;
int wait_ref_count;
SIMPLEQ_ENTRY(isns_task_s) taskq_entry;
};
typedef void (isns_task_handler)(struct isns_task_s *);
void isns_run_task(struct isns_task_s *);
void isns_end_task(struct isns_task_s *);
int isns_wait_task(struct isns_task_s *, const struct timespec *);
struct isns_task_s *isns_new_task(struct isns_config_s *, uint8_t, int);
void isns_free_task(struct isns_task_s *);
void isns_taskq_insert_tail(struct isns_config_s *, struct isns_task_s *);
void isns_taskq_insert_head(struct isns_config_s *, struct isns_task_s *);
struct isns_task_s *isns_taskq_remove(struct isns_config_s *);
struct isns_task_s *isns_taskq_remove_trans(struct isns_config_s *, uint16_t);
#endif /* !_ISNS_TASK_H_ */