/*
 * Copyright 2000, International Business Machines Corporation and others.
 * All Rights Reserved.
 *
 * This software has been released under the terms of the IBM Public
 * License.  For details, see the LICENSE file in the top-level source
 * directory or online at http://www.openafs.org/dl/license10.html
 */

/*
 * Solaris OSI header file. Extends afs_osi.h.
 *
 * afs_osi.h includes this file, which is the only way this file should
 * be included in a source file. This file can redefine macros declared in
 * afs_osi.h.
 */

#ifndef _OSI_MACHDEP_H_
#define _OSI_MACHDEP_H_

#ifdef AFS_SUN5_64BIT_ENV
#include <sys/model.h>		/* for get_udatamodel() */
#endif

#define getpid()		curproc->p_pid

/**
  * The location of the NFSSRV module
  * Used in osi_vfsops.c when checking to see if the nfssrv module is
  * loaded
  */
#define NFSSRV 		"/kernel/misc/nfssrv"
#define NFSSRV_V9 	"/kernel/misc/sparcv9/nfssrv"
#define NFSSRV_AMD64 	"/kernel/misc/amd64/nfssrv"

typedef struct cred afs_ucred_t;
typedef struct proc afs_proc_t;

/*
 * Time related macros
 */
#define	afs_hz	    hz
#ifdef AFS_SUN59_ENV
#define osi_Time() local_osi_Time()
extern void gethrestime(timespec_t *);
static int
local_osi_Time()
{
    timespec_t start;
    gethrestime(&start);
    return start.tv_sec;
}
#else
#define osi_Time() (hrestime.tv_sec)
#endif

#define osi_vnhold(avc, r)  do {    \
    struct vnode *vp = AFSTOV(avc); \
    uint_t prevcount;               \
                                    \
    mutex_enter(&vp->v_lock);       \
    prevcount = vp->v_count++;      \
    mutex_exit(&vp->v_lock);        \
                                    \
    if (prevcount == 0) {           \
	VFS_HOLD(afs_globalVFS);    \
    }                               \
} while(0)

#define gop_rdwr(rw,gp,base,len,offset,segflg,ioflag,ulimit,cr,aresid) \
  vn_rdwr((rw),(gp),(base),(len),(offset),(segflg),(ioflag),(ulimit),(cr),(aresid))
#define gop_lookupname(fnamep,segflg,followlink,compvpp) \
  lookupname((fnamep),(segflg),(followlink),NULL,(compvpp))
#define gop_lookupname_user(fnamep,segflg,followlink,compvpp) \
  lookupname((fnamep),(segflg),(followlink),NULL,(compvpp))


#if defined(AFS_SUN510_ENV)
#define afs_suser(x)        afs_osi_suser(x)
#else
#define afs_suser(x)        suser(x)
#endif

/*
 * Global lock support.
 */
#include <sys/mutex.h>
extern kmutex_t afs_global_lock;

#define AFS_GLOCK()	mutex_enter(&afs_global_lock)
#define AFS_GUNLOCK()	mutex_exit(&afs_global_lock)
#define ISAFS_GLOCK()	mutex_owned(&afs_global_lock)
#define osi_InitGlock() \
	mutex_init(&afs_global_lock, "afs_global_lock", MUTEX_DEFAULT, NULL);


/* Associate the Berkley signal equivalent lock types to System V's */
#define	LOCK_SH 1		/* F_RDLCK */
#define	LOCK_EX	2		/* F_WRLCK */
#define	LOCK_NB	4		/* XXX */
#define	LOCK_UN	8		/* F_UNLCK */

#ifndef	IO_APPEND
#define	IO_APPEND 	FAPPEND
#endif

#ifndef	IO_SYNC
#define	IO_SYNC		FSYNC
#endif

/*
** Macro returns 1 if file is larger than 2GB; else returns 0
*/
#undef AfsLargeFileUio
#define AfsLargeFileUio(uio)       ( (uio)->_uio_offset._p._u ? 1 : 0 )
#undef AfsLargeFileSize
#define AfsLargeFileSize(pos, off) ( ((offset_t)(pos)+(offset_t)(off) > (offset_t)0x7fffffff)?1:0)

#if defined(AFS_SUN510_ENV)
#include "h/sunddi.h"
extern ddi_taskq_t *afs_taskq;
extern krwlock_t afsifinfo_lock;

/* this should be in rx/SOLARIS/rx_knet.c accessed via accessor functions,
   eventually */
#include "net/if.h"
/* Global interface info struct */
struct afs_ifinfo {
  char        ifname[LIFNAMSIZ];
  ipaddr_t    ipaddr;
  ipaddr_t    netmask;
  uint_t      mtu;
  uint64_t    flags;
  int         metric;
  ipaddr_t    dstaddr;
};
#endif /* AFS_SUN510_ENV */

#define osi_procname(procname, size) strncpy(procname, PTOU(ttoproc(curthread))->u_comm, size)

#endif /* _OSI_MACHDEP_H_ */
