src/afs/HPUX/osi_machdep.h

   1
   2 /*
   3  * Copyright 2000, International Business Machines Corporation and others.
   4  * All Rights Reserved.
   5  *
   6  * This software has been released under the terms of the IBM Public
   7  * License.  For details, see the LICENSE file in the top-level source
   8  * directory or online at http://www.openafs.org/dl/license10.html
   9  */
  10
  11 /*
  12  * HPUX OSI header file. Extends afs_osi.h.
  13  *
  14  * afs_osi.h includes this file, which is the only way this file should
  15  * be included in a source file. This file can redefine macros declared in
  16  * afs_osi.h.
  17  */
  18
  19 #ifndef _OSI_MACHDEP_H_
  20 #define _OSI_MACHDEP_H_
  21
  22 #include "h/kern_sem.h"
  23 #include "h/proc_iface.h"
  24
  25 #define afs_hz      hz
  26 extern struct timeval time;
  27 #define osi_Time() (time.tv_sec)
  28
  29 typedef struct ucred afs_ucred_t;
  30 typedef proc_t afs_proc_t;
  31
  32 #define osi_vnhold(avc, r)  do { VN_HOLD(AFSTOV(avc)); } while(0)
  33 #define gop_rdwr(rw,gp,base,len,offset,segflg,unit,aresid) \
  34   vn_rdwr((rw),(gp),(base),(len),(offset),(segflg),(unit),(aresid),0)
  35 #define gop_lookupname(fnamep,segflg,followlink,compvpp) \
  36   lookupname((fnamep),(segflg),(followlink),NULL,(compvpp))
  37 #define gop_lookupname_user(fnamep,segflg,followlink,compvpp) \
  38   lookupname((fnamep),(segflg),(followlink),NULL,(compvpp))
  39
  40 #undef  afs_suser
  41
  42 #define osi_curcred()           (p_cred(u.u_procp))
  43
  44 #define getpid()                (afs_uint32)p_pid(u.u_procp)
  45
  46 #define getppid()               (afs_uint32)p_ppid(u.u_procp)
  47
  48 /*
  49  * Global lock support.
  50  *
  51  * HP uses global mutex to protect afs land
  52  */
  53
  54 #if !defined(AFS_HPUX110_ENV)
  55 extern sema_t afs_global_sema;
  56 #else
  57 extern b_sema_t afs_global_sema;
  58 #endif
  59
  60 extern void osi_InitGlock(void);
  61
  62 #if !defined(AFS_HPUX110_ENV)
  63 extern void afsHash(int nbuckets);
  64 extern sv_sema_t *afsHashInsertFind(tid_t key);
  65 extern sv_sema_t *afsHashFind(tid_t key);
  66 extern void afsHashRelease(tid_t key);
  67
  68 #define AFS_GLOCK_PID   kt_tid(u.u_kthreadp)
  69 #define AFS_SAVE_SEMA   afsHashInsertFind(AFS_GLOCK_PID)
  70 #define AFS_FIND_SEMA   afsHashFind(AFS_GLOCK_PID)
  71
  72 #define AFS_GLOCK()     MP_PXSEMA(&afs_global_sema, AFS_SAVE_SEMA)
  73 #define AFS_GUNLOCK()   (AFS_ASSERT_GLOCK(), MP_VXSEMA(&afs_global_sema,AFS_FIND_SEMA), (!uniprocessor ? (afsHashRelease(AFS_GLOCK_PID),0) : 0))
  74 #define ISAFS_GLOCK()   (!uniprocessor ? owns_sema(&afs_global_sema):1)
  75
  76 #else
  77 #define AFS_GLOCK()  b_psema(&afs_global_sema)
  78 #define AFS_GUNLOCK() b_vsema(&afs_global_sema)
  79 #define ISAFS_GLOCK() b_owns_sema(&afs_global_sema)
  80
  81 #endif
  82
  83 /* Uses splnet only in the SP case */
  84 #define SPLVAR      ulong_t splvar
  85 #define NETPRI      NET_SPLNET(splvar)
  86 #define USERPRI     NET_SPLX(splvar)
  87
  88 #if !defined(AFS_HPUX110_ENV)
  89 /*
  90  * On HP, the global lock is an alpha semaphore, hence it is automatically
  91  * released and reacquired aroubd a sleep() and wakeup().
  92  */
  93
  94 #define afs_osi_Sleep(x)        sleep((caddr_t) x,PZERO-2)
  95 #else
  96 /*
  97  * On 11.22 global lock is a beta semaphore, hence we need to
  98  * release and reacquire around sllep and wakeup. We also need to
  99  * use the get_sleep_lock.
 100  * afs_osi_Sleep and afs_osi_Wakeup are defined
 101  */
 102 void afs_osi_Sleep(void *event);
 103 int afs_osi_Wakeup(void *event);
 104 #endif
 105
 106 #define osi_NullHandle(x)       ((x)->proc == (caddr_t) 0)
 107
 108 #if !defined(AFS_HPUX110_ENV)
 109 extern caddr_t kmem_alloc();
 110 #endif
 111 #if defined(AFS_HPUX1111_ENV)
 112 #include <sys/kthread_iface.h>  /* for kt_cred() */
 113 #endif
 114
 115 /* Expected to be available as a patch from HP */
 116 /* See section D of the top level README for details */
 117 #if defined(AFS_HPUX110_ENV)
 118 #include <sys/vfs_vm.h>
 119 #else
 120 #include <vfs_vm.h>
 121 #endif
 122
 123 #define osi_procname(procname, size) strncpy(procname, "", size)
 124
 125 #endif /* _OSI_MACHDEP_H_ */