188 lines
6.4 KiB
C
188 lines
6.4 KiB
C
/* $NetBSD: irix_usema.h,v 1.7 2002/09/06 13:18:43 gehenna Exp $ */
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/*-
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* Copyright (c) 2002 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 Emmanuel Dreyfus.
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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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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#ifndef _IRIX_USEMA_H_
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#define _IRIX_USEMA_H_
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#include <sys/param.h>
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#include <sys/device.h>
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#include <sys/lock.h>
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#include <sys/queue.h>
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#include <compat/irix/irix_types.h>
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#include <compat/irix/irix_exec.h>
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extern struct vfsops irix_usema_dummy_vfsops;
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void irix_usema_dummy_vfs_init __P((void));
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extern const struct vnodeopv_desc * const irix_usema_vnodeopv_descs[];
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extern const struct vnodeopv_desc irix_usema_opv_desc;
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extern int (**irix_usema_vnodeop_p) __P((void *));
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extern const struct vnodeopv_entry_desc irix_usema_vnodeop_entries[];
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void irix_usemaattach __P((struct device *, struct device *, void *));
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int irix_usema_close __P((void *));
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int irix_usema_access __P((void *));
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int irix_usema_getattr __P((void *));
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int irix_usema_setattr __P((void *));
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int irix_usema_fcntl __P((void *));
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int irix_usema_ioctl __P((void *));
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int irix_usema_poll __P((void *));
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int irix_usema_inactive __P((void *));
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void irix_usema_exit_cleanup __P((struct proc *, struct proc *));
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#ifdef DEBUG_IRIX
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void irix_usema_debug __P((void));
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#endif
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#define IRIX_USEMADEV_MINOR 1
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#define IRIX_USEMACLNDEV_MINOR 0
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/* Semaphore internal structure: undocumented in IRIX */
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struct irix_semaphore {
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int is_val; /* Sempahore value */
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int is_uk1; /* unknown, usually small integer < 3000 */
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int is_uk2; /* metric, debug or history pointer ? */
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int is_uk3; /* unknown, usually equal to 0 */
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int is_uk4; /* unknown, usually equal to 0 */
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int is_shid; /* unique ID for the shared arena ? */
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int is_oid; /* owner id? usually equal to -1 */
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int is_uk7; /* unknown, usually equal to -1 */
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int is_uk8; /* unknown, usually equal to 0 */
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int is_uk9; /* unknown, usually equal to 0 */
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int is_uk10; /* semaphore page base address ? */
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int is_uk12; /* unknown, usually equal to 0 */
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int is_uk13; /* metric, debug or history pointer ? */
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int is_uk14; /* padding? */
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};
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struct irix_usema_idaddr {
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int iui_uk1; /* unknown, usually equal to 0 */
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int *iui_oidp; /* pointer to is_oid field in struct irix_semaphore */
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};
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/* waiting processes list */
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struct irix_waiting_proc_rec {
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TAILQ_ENTRY(irix_waiting_proc_rec) iwpr_list;
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struct proc *iwpr_p;
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};
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/* semaphore list, their vnode counterparts, and waiting processes lists */
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struct irix_usema_rec {
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LIST_ENTRY(irix_usema_rec) iur_list;
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struct vnode *iur_vn;
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struct irix_semaphore *iur_sem;
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int iur_shid;
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struct proc *iur_p;
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int iur_waiting_count;
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TAILQ_HEAD(iur_waiting_p, irix_waiting_proc_rec) iur_waiting_p;
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TAILQ_HEAD(iur_released_p, irix_waiting_proc_rec) iur_released_p;
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struct lock iur_lock; /* lock for both lists */
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};
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/* From IRIX's <sys/usioctl.h> */
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#define IRIX_USEMADEV "/dev/usema"
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#define IRIX_USEMACLNDEV "/dev/usemaclone"
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#define IRIX_UIOC ('u' << 16 | 's' << 8)
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#define IRIX_UIOC_MASK 0x00ffff00
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#define IRIX_UIOCATTACHSEMA (IRIX_UIOC|2)
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#define IRIX_UIOCBLOCK (IRIX_UIOC|3)
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#define IRIX_UIOCABLOCK (IRIX_UIOC|4)
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#define IRIX_UIOCNOIBLOCK (IRIX_UIOC|5)
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#define IRIX_UIOCUNBLOCK (IRIX_UIOC|6)
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#define IRIX_UIOCAUNBLOCK (IRIX_UIOC|7)
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#define IRIX_UIOCINIT (IRIX_UIOC|8)
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#define IRIX_UIOCGETSEMASTATE (IRIX_UIOC|9)
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#define IRIX_UIOCABLOCKPID (IRIX_UIOC|10)
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#define IRIX_UIOCADDPID (IRIX_UIOC|11)
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#define IRIX_UIOCABLOCKQ (IRIX_UIOC|12)
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#define IRIX_UIOCAUNBLOCKQ (IRIX_UIOC|13)
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#define IRIX_UIOCIDADDR (IRIX_UIOC|14)
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#define IRIX_UIOCSETSEMASTATE (IRIX_UIOC|15)
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#define IRIX_UIOCGETCOUNT (IRIX_UIOC|16)
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struct irix_usattach_s {
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irix_dev_t us_dev;
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void *us_handle;
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};
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typedef struct irix_usattach_s irix_usattach_t;
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struct irix_irix5_usattach_s {
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__uint32_t us_dev;
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__uint32_t us_handle;
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};
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typedef struct irix_irix5_usattach_s irix_irix5_usattach_t;
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struct irix_ussemastate_s {
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int ntid;
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int nprepost;
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int nfilled;
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int nthread;
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struct irix_ussematidstate_s {
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pid_t pid;
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int tid;
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int count;
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} *tidinfo;
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};
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typedef struct irix_ussemastate_s irix_ussemastate_t;
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typedef struct irix_ussematidstate_s irix_ussematidstate_t;
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/* usync_fcntl() commands, undocumented in IRIX */
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#define IRIX_USYNC_BLOCK 1
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#define IRIX_USYNC_INTR_BLOCK 2
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#define IRIX_USYNC_UNBLOCK_ALL 3
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#define IRIX_USYNC_UNBLOCK 4
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#define IRIX_USYNC_NOTIFY_REGISTER 5
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#define IRIX_USYNC_NOTIFY 6
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#define IRIX_USYNC_NOTIFY_DELETE 7
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#define IRIX_USYNC_NOTIFY_CLEAR 8
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#define IRIX_USYNC_GET_STATE 11
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struct irix_usync_arg {
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int iua_uk0; /* unknown, usually small integer around 1000 */
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int iua_uk1; /* unknown, usually pointer to code in libc */
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int iua_uk2; /* unknown, usually null */
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struct irix_semaphore *iua_sem; /* semaphore address */
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};
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#endif /* _IRIX_USEMA_H_ */
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