On Mon, 16 Mar 2009, Angel Pais wrote:

Hi,

> Here you have attacched errors & ppo file.
> Too much preprocessor trick for me so I couldn`t even try to fix this code.

Thank you.
In few places xbase++ preprocessor is not Clipper compatible but it's not
our job to locate the exact problems.
I updated the speedtst.prg code to be more friendly for PPs which are not
fully Clipper compatible and I'm attaching modified speedtst2.prg.
Now it can be compiled also by CLIP (www.itk.ru) though it needs runtime
parameter "--exclude=017" for execution - CLIP does not support accesing
MAP items by index.

I would like to ask again you or other xbase++ users to try compile and
execute attached code and send the results or errors.

I haven't touched all reported errors but it's possible that some of them
are results of errors generated before due to PP problems so I don't want
to change sth what can be left as is.

best regards,
Przemek
/*
 * $Id: speedtst.prg 10578 2009-03-10 11:17:18Z druzus $
 */

/*
 * Harbour Project source code:
 *    HVM speed test program
 *
 * Copyright 2008 Przemyslaw Czerpak <druzus / at / priv.onet.pl>
 * www - http://www.harbour-project.org
 *
 */

#define N_TESTS 55
#define N_LOOPS 1000000
#define ARR_LEN 16

#ifndef __HARBOUR__
   #ifndef __XPP__
      #ifndef __CLIP__
        #define __CLIPPER__
      #endif
   #endif
#endif


#ifdef __CLIPPER__
   /* Clipper does not support multithreading */
   #ifndef __ST__
      #define __ST__
   #endif
#endif

#ifdef __XPP__
   /* xBase++ version for MT performance testing is not ready yet */
   #ifndef __ST__
      #define __ST__
   #endif
#endif

#ifdef __CLIP__
   /* CLIP version for MT performance testing is not ready yet */
   #ifndef __ST__
      #define __ST__
   #endif
#endif

#ifdef __XHARBOUR__
   /* By default build xHarbour binaries without MT support
    * xHarbour needs separated version for MT and ST mode
    * because standard MT functions are not available in
    * ST libraries.
    */
   #ifndef __ST__
      #ifndef __MT__
         #ifndef MT
            #ifndef HB_THREAD_SUPPORT
               #define __ST__
            #endif
         #endif
      #endif
   #endif
#endif

/* by default create MT version */
#ifndef __MT__
   #ifndef __ST__
      #define __MT__
   #endif
#endif


#command ? => outstd(EOL)
#command ? <xx,...> => outstd(EOL);outstd(<xx>)
#command ?? <xx,...> => outstd(<xx>)

#include "common.ch"

#ifdef __HARBOUR__
   #define EOL hb_OSNewLine()
#else
   #define HB_SYMBOL_UNUSED( symbol )  ( ( symbol ) )
   #ifndef __CLIP__
      #xtranslate secondsCPU() => seconds()
   #endif
   #ifndef EOL
      #define EOL chr(10)
   #endif
#endif

#xcommand _( <exp> <explst,...> ) => <exp> <explst>

#xcommand TEST <testfunc>           ;
          [ WITH <locals,...> ]     ;
          [ INIT <init> ]           ;
          [ EXIT <exit> ]           ;
          [ INFO <info> ]           ;
          CODE [<*testExp*>] =>     ;
   func <testfunc> ;                ;
      local time, i, x := nil ;     ;
      [ local <locals> ; ]          ;
      [ <init> ; ]                  ;
      time := secondscpu() ;        ;
      for i:=1 to N_LOOPS ;         ;
         [<testExp>;]               ;
      next ;                        ;
      time := secondscpu() - time ; ;
      [ <exit> ; ]                  ;
   return { procname() + ": " + iif( <.info.>, <(info)>, #<testExp> ), time }

#ifdef __HARBOUR__
proc main( ... )
   local aParams := hb_aparams()
#else
proc main( _p01, _p02, _p03, _p04, _p05, _p06, _p07, _p08, _p09, _p10, ;
           _p11, _p12, _p13, _p14, _p15, _p16, _p17, _p18, _p19, _p20 )
   local aParams := ;
      asize( { _p01, _p02, _p03, _p04, _p05, _p06, _p07, _p08, _p09, _p10, ;
               _p11, _p12, _p13, _p14, _p15, _p16, _p17, _p18, _p19, _p20 }, ;
             min( pCount(), 20 ) )
#endif
   local nMT, cExclude, lScale, cParam, cMemTests, lSyntax, i, j

   lSyntax := lScale := .f.
   cMemTests := "029 030 023 025 027 040 041 043 052 053 019 022 031 032 054 
055 "
   cExclude := ""
   nMT := 0
   for j := 1 to len( aParams )
      cParam := lower( aParams[ j ] )
      if cParam = "--thread"
         if substr( cParam, 9, 1 ) == "="
            if isdigit( substr( cParam, 10, 1 ) )
               nMT := val( substr( cParam, 10 ) )
            elseif substr( cParam, 10 ) == "all"
               nMT := -1
            else
               lSyntax = .t.
            endif
         elseif empty( substr( cParam, 9 ) )
            nMT := -1
         else
            lSyntax = .t.
         endif
      elseif cParam = "--exclude="
         if substr( cParam, 11 ) == "mem"
            cExclude += cMemTests
         else
            cExclude += strtran( strtran( strtran( substr( cParam, 11 ), ;
                        ".", " " ), ".", " " ), "/", " " ) + " "
         endif
      elseif cParam = "--only="
         cExclude := ""
         if substr( cParam, 8 ) == "mem"
            cParam := cMemTests
         endif
         for i := 1 to N_TESTS
            if !strzero( i, 3 ) $ cParam
               cExclude += strzero( i, 3 ) + " "
            endif
         next
      elseif cParam = "--scale"
         lScale := .t.
      else
         lSyntax = .t.
      endif
      if lSyntax
         ? "Unknown option:", cParam
         ? "syntax: speedtst [--thread[=<num>]] [--only=<test(s)>] 
[--exclude=<test(s)>]"
         ?
         return
      endif
   next
   test( nMT, cExclude, lScale )
return


/*** TESTS ***/

TEST t000 INFO "empty loop overhead" CODE

TEST t001 WITH L_C:=dtos(date()) CODE x := L_C

TEST t002 WITH L_N:=112345.67    CODE x := L_N

TEST t003 WITH L_D:=date()       CODE x := L_D

TEST t004 INIT _( static s_once, S_C ) ;
          INIT hb_threadOnce( @s_once, {|| S_C := dtos( date() ) } ) ;
          CODE x := S_C

TEST t005 INIT _( static s_once, S_N ) ;
          INIT hb_threadOnce( @s_once, {|| S_N := 112345.67 } ) ;
          CODE x := S_N

TEST t006 INIT _( static s_once, S_D ) ;
          INIT hb_threadOnce( @s_once, {|| S_D := date() } ) ;
          CODE x := S_D

TEST t007 INIT _( memvar M_C ) INIT _( private M_C := dtos( date() ) ) ;
          CODE x := M_C

TEST t008 INIT _( memvar M_N ) INIT _( private M_N := 112345.67 ) ;
          CODE x := M_N

TEST t009 INIT _( memvar M_D ) INIT _( private M_D := date() ) ;
          CODE x := M_D

TEST t010 INIT _( memvar P_C ) ;
          INIT _( static s_once ) ;
          INIT _( public P_C ) ;
          INIT hb_threadOnce( @s_once, {|| P_C := dtos( date() ) } ) ;
          CODE x := P_C

TEST t011 INIT _( memvar P_N ) ;
          INIT _( static s_once ) ;
          INIT _( public P_N ) ;
          INIT hb_threadOnce( @s_once, {|| P_N := 112345.67 } ) ;
          CODE x := P_N

TEST t012 INIT _( memvar P_D ) ;
          INIT _( static s_once ) ;
          INIT _( public P_D ) ;
          INIT hb_threadOnce( @s_once, {|| P_D := date() } ) ;
          CODE x := P_D

TEST t013 INIT _( field F_C ) INIT use_dbsh() EXIT close_db() ;
          CODE x := F_C

TEST t014 INIT _( field F_N ) INIT use_dbsh() EXIT close_db() ;
          CODE x := F_N

TEST t015 INIT _( field F_D ) INIT use_dbsh() EXIT close_db() ;
          CODE x := F_D

TEST t016 WITH o := errorNew() CODE x := o:Args

TEST t017 WITH o := errorNew() CODE x := o[2]

TEST t018 CODE round( i / 1000, 2 )

TEST t019 CODE str( i / 1000 )

TEST t020 WITH s := stuff( dtos( date() ), 7, 0, "." ) CODE val( s )

TEST t021 WITH a := afill( array( ARR_LEN ), ;
                           stuff( dtos( date() ), 7, 0, "." ) ) ;
          CODE val( a [ i % ARR_LEN + 1 ] )

TEST t022 WITH d := date() CODE dtos( d - i % 10000 )

TEST t023 CODE eval( { || i % ARR_LEN } )

TEST t024 WITH bc := { || i % ARR_LEN } ;
          INFO eval( bc := { || i % ARR_LEN } ) ;
          CODE eval( bc )

TEST t025 CODE eval( { |x| x % ARR_LEN }, i )

TEST t026 WITH bc := { |x| x % ARR_LEN } ;
          INFO eval( bc := { |x| x % ARR_LEN }, i ) ;
          CODE eval( bc, i )

TEST t027 CODE eval( { |x| f1( x ) }, i )

TEST t028 WITH bc := { |x| f1( x ) } ;
          INFO eval( bc := { |x| f1( x ) }, i ) ;
          CODE eval( bc, i )

TEST t029 CODE x := &( "f1(" + str(i) + ")" )

TEST t030 WITH bc CODE bc := &( "{|x|f1(x)}" ); eval( bc, i )

TEST t031 CODE x := valtype( x ) +  valtype( i )

TEST t032 WITH a := afill( array( ARR_LEN ), ;
                           stuff( dtos( date() ), 7, 0, "." ) ) ;
          CODE x := strzero( i % 100, 2 ) $ a[ i % ARR_LEN + 1 ]

TEST t033 WITH a := array( ARR_LEN ), s := dtos( date() ) ;
          INIT aeval( a, { |x,i| a[i] := left( s + s, i ), x } ) ;
          CODE x := a[ i % ARR_LEN + 1 ] == s

TEST t034 WITH a := array( ARR_LEN ), s := dtos( date() ) ;
          INIT aeval( a, { |x,i| a[i] := left( s + s, i ), x } ) ;
          CODE x := a[ i % ARR_LEN + 1 ] = s

TEST t035 WITH a := array( ARR_LEN ), s := dtos( date() ) ;
          INIT aeval( a, { |x,i| a[i] := left( s + s, i ), x } ) ;
          CODE x := a[ i % ARR_LEN + 1 ] >= s

TEST t036 WITH a := array( ARR_LEN ), s := dtos( date() ) ;
          INIT aeval( a, { |x,i| a[i] := left( s + s, i ), x } ) ;
          CODE x := a[ i % ARR_LEN + 1 ] <= s

TEST t037 WITH a := array( ARR_LEN ), s := dtos( date() ) ;
          INIT aeval( a, { |x,i| a[i] := left( s + s, i ), x } ) ;
          CODE x := a[ i % ARR_LEN + 1 ] < s

TEST t038 WITH a := array( ARR_LEN ), s := dtos( date() ) ;
          INIT aeval( a, { |x,i| a[i] := left( s + s, i ), x } ) ;
          CODE x := a[ i % ARR_LEN + 1 ] > s

TEST t039 WITH a := array( ARR_LEN ) ;
          INIT aeval( a, { |x,i| a[i] := i, x } ) ;
          CODE ascan( a, i % ARR_LEN )

TEST t040 WITH a := array( ARR_LEN ) ;
          INIT aeval( a, { |x,i| a[i] := i, x } ) ;
          CODE ascan( a, { |x| x == i % ARR_LEN } )

TEST t041 WITH a := {}, a2 := { 1, 2, 3 }, bc := { |x| f1(x) }, ;
               s := dtos( date() ), s2 := "static text" ;
          CODE iif( i%1000==0, a:={}, ) ; aadd(a,{i,1,.t.,s,s2,a2,bc})

TEST t042 WITH a := {} CODE x := a

TEST t043 CODE x := {}

TEST t044 CODE f0()

TEST t045 CODE f1( i )

TEST t046 WITH c := dtos( date() ) ;
          INFO f2( c[1...8] ) ;
          CODE f2( c )

TEST t047 WITH c := repl( dtos( date() ), 5000 ) ;
          INFO f2( c[1...40000] ) ;
          CODE f2( c )

TEST t048 WITH c := repl( dtos( date() ), 5000 ) ;
          INFO f2( @c[1...40000] ) ;
          CODE f2( c )

TEST t049 WITH c := repl( dtos( date() ),5000 ), c2 ;
          INFO "f2( @c[1...40000] ), c2 := c" ;
          CODE f2( @c ); c2 := c

TEST t050 WITH a := {}, a2 := { 1, 2, 3 }, bc := { |x| f1(x) }, ;
               s := dtos( date() ), s2 := "static text", n := 1.23 ;
          CODE f3( a, a2, s, i, s2, bc, i, n, x )

TEST t051 WITH a := { 1, 2, 3 } CODE f2( a )

TEST t052 CODE x := f4()

TEST t053 CODE x := f5()

TEST t054 CODE x := space(16)

TEST t055 WITH c := dtos( date() ) CODE f_prv( c )

/*** end of tests ***/


#ifdef __MT__

function thTest( mtxJobs, aResults )
   local xJob
   while .T.
      hb_mutexSubscribe( mtxJobs,, @xJob )
      if xJob == NIL
         exit
      endif
      aResults[ xJob ] := &( "t" + strzero( xJob, 3 ) )()
   enddo
return nil

function thTestScale( mtxJobs, mtxResults )
   local xJob
   while .T.
      hb_mutexSubscribe( mtxJobs,, @xJob )
      if xJob == NIL
         exit
      endif
      hb_mutexNotify( mtxResults, &( "t" + strzero( xJob, 3 ) )() )
   enddo
return nil

#endif


proc test( nMT, cExclude, lScale )
local nLoopOverHead, nTimes, nSeconds, cNum, aThreads, aResults, ;
      mtxJobs, mtxResults, nTimeST, nTimeMT, nTimeTotST, nTimeTotMT, ;
      cTest, x, i, j

create_db()

#ifdef __HARBOUR__
   #include "hbmemory.ch"
      if MEMORY( HB_MEM_USEDMAX ) != 0
      ? "Warning !!! Memory statistic enabled."
      ?
   endif
#endif

//? "Startup loop to increase CPU clock..."
//x := seconds() + 5; while x > seconds(); enddo

if !hb_mtvm()
   if lScale
      ? "scale test available only in MULTI THREAD mode"
      ?
      return
   endif
   if nMT != 0
      ? "SINGLE THREAD mode, number of threads set to 0"
      nMT := 0
   endif
endif
? date(), time(), os()
? version() + iif( hb_mtvm(), " (MT)" + iif( nMT != 0, "+", "" ), "" ), ""
#ifdef __HARBOUR__
   ?? hb_compiler()
#endif

if lScale .and. nMT < 1
   nMT := 1
endif

? "THREADS:", iif( nMT < 0, "all->" + ltrim( str( N_TESTS ) ), ltrim( str( nMT 
) ) )
? "N_LOOPS:", ltrim( str( N_LOOPS ) )
if !empty( cExclude )
   ? "excluded tests:", cExclude
endif

x :=t000()
nLoopOverHead := x[2]

if lScale
   ? space(56) + "1 th." + str(nMT,3) + " th.  factor"
   ? replicate("=",76)
else
   ? dsp_result( x, 0 )
   ? replicate("=",68)
endif

nSeconds := seconds()
nTimes := secondsCPU()

#ifdef __MT__
   if lScale
      mtxJobs := hb_mutexCreate()
      mtxResults := hb_mutexCreate()
      nTimeTotST := nTimeTotMT := 0
      for i:=1 to nMT
         hb_threadStart( "thTestScale", mtxJobs, mtxResults )
      next
      for i:=1 to N_TESTS
         cTest := strzero( i, 3 )
         if !cTest $ cExclude

            /* linear execution */
            nTimeST := seconds()
            for j:=1 to nMT
               hb_mutexNotify( mtxJobs, i )
               hb_mutexSubscribe( mtxResults,, @x )
               cTest := x[1]
            next
            nTimeST := seconds() - nTimeST
            nTimeTotST += nTimeST

            /* simultaneous execution */
            nTimeMT := seconds()
            for j:=1 to nMT
               hb_mutexNotify( mtxJobs, i )
            next
            for j:=1 to nMT
               hb_mutexSubscribe( mtxResults,, @x )
               cTest := x[1]
            next
            nTimeMT := seconds() - nTimeMT
            nTimeTotMT += nTimeMT

            ? dsp_scaleResult( cTest, nTimeST, nTimeMT, nMT, nLoopOverHead )
         endif

      next
      for i:=1 to nMT
         hb_mutexNotify( mtxJobs, NIL )
      next
      hb_threadWaitForAll()
   elseif nMT < 0
      aThreads := array( N_TESTS )
      for i:=1 to N_TESTS
         cNum := strzero( i, 3 )
         if !cNum $ cExclude
            aThreads[ i ] := hb_threadStart( "t" + cNum )
         endif
      next
      for i:=1 to N_TESTS
         if aThreads[ i ] != NIL .and. hb_threadJoin( aThreads[ i ], @x )
            ? dsp_result( x, nLoopOverHead )
         endif
      next
   elseif nMT > 0
      aResults := array( N_TESTS )
      mtxJobs := hb_mutexCreate()
      for i:=1 to nMT
         hb_threadStart( "thTest", mtxJobs, aResults )
      next
      for i:=1 to N_TESTS
         if !strzero( i, 3 ) $ cExclude
            hb_mutexNotify( mtxJobs, i )
         endif
      next
      for i:=1 to nMT
         hb_mutexNotify( mtxJobs, NIL )
      next
      hb_threadWaitForAll()
      for i:=1 to N_TESTS
         if aResults[ i ] != NIL
            ? dsp_result( aResults[ i ], nLoopOverHead )
         endif
      next
      mtxJobs := NIL
   else
      for i:=1 to N_TESTS
         cNum := strzero( i, 3 )
         if !cNum $ cExclude
            ? dsp_result( &( "t" + cNum )(), nLoopOverHead )
         endif
      next
   endif
#else
   for i:=1 to N_TESTS
      cNum := strzero( i, 3 )
      if !cNum $ cExclude
         ? dsp_result( &( "t" + cNum )(), nLoopOverHead )
      endif
   next
#endif

nTimes := secondsCPU() - nTimes
nSeconds := seconds() - nSeconds

if lScale
   ? replicate("=",76)
   ? dsp_scaleResult( "  TOTAL  ", nTimeTotST, nTimeTotMT, nMT, 0 )
   ? replicate("=",76)
else
   ? replicate("=",68)
endif
? dsp_result( { "total application time:", nTimes }, 0)
? dsp_result( { "total real time:", nSeconds }, 0 )
?

remove_db()
return

function f0()
return nil

function f1(x)
return x

function f2(x)
HB_SYMBOL_UNUSED( x )
return nil

function f3(a,b,c,d,e,f,g,h,i)
HB_SYMBOL_UNUSED( a )
HB_SYMBOL_UNUSED( b )
HB_SYMBOL_UNUSED( c )
HB_SYMBOL_UNUSED( d )
HB_SYMBOL_UNUSED( e )
HB_SYMBOL_UNUSED( f )
HB_SYMBOL_UNUSED( g )
HB_SYMBOL_UNUSED( h )
HB_SYMBOL_UNUSED( i )
return nil

function f4()
return space(4000)

function f5()
return space(5)

function f_prv(x)
   memvar PRV_C
   private PRV_C := x
return nil

/*
function f_pub(x)
   memvar PUB_C
   public PUB_C := x
return nil

function f_stat(x)
   static STAT_C
   STAT_C := x
return nil
*/

static func dsp_result( aResult, nLoopOverHead )
   return padr( "[ " + left( aResult[1], 56 ) + " ]", 60, "." ) + ;
          strtran( str( max( aResult[2] - nLoopOverHead, 0 ), 8, 2 ), " ", "." )

static func dsp_scaleResult( cTest, nTimeST, nTimeMT, nMT, nLoopOverHead )
   if .f.
      nTimeST := max( 0, nTimeST - nMT * nLoopOverHead )
      nTimeMT := max( 0, nTimeMT - nMT * nLoopOverHead )
   endif
   return padr( "[ " + left( cTest, 50 ) + " ]", 54, "_" ) + ;
          str( nTimeST, 6, 2 ) + " " + str( nTimeMT, 6, 2 ) + " ->" + ;
          str( nTimeST / nTimeMT, 6, 2 )


#define TMP_FILE "_tst_tmp.dbf"
static proc create_db()
   remove_db()
   dbcreate( TMP_FILE, { {"F_C", "C", 10, 0},;
                         {"F_N", "N", 10, 2},;
                         {"F_D", "D",  8, 0} } )
   use TMP_FILE exclusive
   dbappend()
   replace F_C with dtos(date())
   replace F_N with 112345.67
   replace F_D with date()
   close
return

static proc remove_db()
   ferase( TMP_FILE )
return

static proc close_db()
   close
return

static proc use_dbsh()
   use TMP_FILE shared
return


#ifdef __CLIPPER__
   function hb_mtvm()
   return .f.                 /* Clipper does not support MT */
#endif
#ifdef __CLIP__
   function hb_mtvm()
   return .t.                 /* CLIP always uses VM with MT support */
#endif
#ifdef __XPP__
   function hb_mtvm()
   return .t.                 /* xBase++ always uses VM with MT support */
#endif
#ifdef __XHARBOUR__
   function hb_mtvm()
   return hb_multiThread()    /* check for MT support in xHarbour VM */
#endif


#ifndef __MT__

   /* trivial single thread version of once execution */
   function hb_threadOnce( xOnceControl, bAction )
      local lFirstCall := .f.
      if xOnceControl == NIL
         if bAction != NIL
            eval( bAction )
         endif
         xOnceControl := .t.
         lFirstCall := .t.
      endif
   return lFirstCall

#else

   /* Add support for MT functions for used compiler
    */

#ifdef __XHARBOUR__

   /* do not expect that this code will work with xHarbour.
    * xHarbour has many race conditions which are exploited quite fast
    * on real multi CPU machines so it crashes in different places :-(
    * probably this code should be forwared to xHarbour developers as
    * some type of MT test
    */

   /* this define is only to test if emulation function works
    * without running real test which causes that xHarbour crashes
    */
   //#define _DUMY_XHB_TEST_


   function hb_mutexSubscribe( mtx, nTimeOut, xSubscribed )
      local lSubscribed
      if valtype( nTimeOut ) == "N"
         nTimeOut := round( nTimeOut * 1000, 0 )
         xSubscribed := Subscribe( mtx, nTimeOut, @lSubscribed )
      else
         xSubscribed := Subscribe( mtx )
         lSubscribed := .t.
      endif
   return lSubscribed

   function hb_mutexNotify( mtx, xValue )
      Notify( mtx, xValue )
   return nil

   /* in xHarbour there is race condition in JoinThread() which
    * fails if thread end before we call it so we cannot use it :-(
    * this code tries to simulate it and also add support for thread
    * return value
    */

   function hb_threadStart( ... )
      local thId
      thId := StartThread( @threadFirstFunc(), hb_aParams() )
      /* Just like in JoinThread() the same race condition exists in
       * GetThreadId() so we will use HVM thread numbers internally
       */
#ifdef _DUMY_XHB_TEST_
   return val( substr( hb_aParams()[1], 2 ) )
#else
   return GetThreadId( thId )
#endif

   function hb_threadJoin( thId, xResult )
      xResult := results( thId )
   return .t.

   static function threadFirstFunc( aParams )
      local xResult
#ifdef _DUMY_XHB_TEST_
      xResult := { "skipped test " + aParams[1], val( substr( aParams[1], 2 ) ) 
+ 0.99 }
      results( val( substr( aParams[1], 2 ) ), xResult )
#else
      xResult := hb_execFromArray( aParams )
      results( GetThreadId(), xResult )
#endif
   return nil

   static function results( nThread, xResult )
      static s_aResults
      static s_mutex
      if s_aResults == nil
         s_aResults := HSetAutoAdd( hash(), .t. )
         s_mutex := hb_mutexCreate()
      endif
      if pcount() < 2
         while ! nThread $ s_aResults
            Subscribe( s_mutex, 1000 )
         enddo
         xResult := s_aResults[ nThread ]
      else
         s_aResults[ nThread ] := xResult
         /* We cannot use NotifyAll() here because it will create
          * race condition. In this program only one thread join
          * results so we can use simple Notify() as workaround
          */
         //NotifyAll( s_mutex )
         Notify( s_mutex )
      endif
   return xResult

   function hb_threadWaitForAll()
      WaitForThreads()
   return nil

   function hb_threadOnce( xOnceControl, bAction )
      static s_mutex
      local lFirstCall := .f.
      if s_mutex == NIL
         s_mutex := hb_mutexCreate()
      endif
      if xOnceControl == NIL
         hb_mutexLock( s_mutex )
         if xOnceControl == NIL
            if bAction != NIL
               eval( bAction )
            endif
            xOnceControl := .t.
            lFirstCall := .t.
         endif
         hb_mutexUnlock( s_mutex )
      endif
   return lFirstCall

   init proc once_init()
      /* set workareas local to thread */
      set workarea private
      /* initialize mutex in hb_trheadDoOnce() */
      hb_threadOnce()
      /* initialize error object to reduce possible crashes when two
       * threads will try to create new error class simultaneously.
       * xHarbour does not have any protection against such situation
       */
      errorNew()
   return

#endif /* __XHARBOUR__ */


/*
   function hb_threadStart( cFunc, xPar1, xPar2, xPar3 )
   return nil

   function hb_threadJoin( thId, xResult )
   return nil

   function hb_mutexCreate()
   return nil

   function hb_mutexSubscribe()
   return nil
   function hb_mutexLock()
   return nil
   function hb_mutexUnlock()
   return nil
   function hb_mutexNotify()
   return nil
   function hb_threadWaitForAll()
   return nil
   function hb_mtvm()
   return .f.
*/

#endif
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