var/external/bufr/nxtwin.f

   1       SUBROUTINE NXTWIN(LUN,IWIN,JWIN)
   2
   3 C$$$  SUBPROGRAM DOCUMENTATION BLOCK
   4 C
   5 C SUBPROGRAM:    NXTWIN
   6 C   PRGMMR: WOOLLEN          ORG: NP20       DATE: 1994-01-06
   7 C
   8 C ABSTRACT: GIVEN INDICES WITHIN THE INTERNAL JUMP/LINK TABLE WHICH
   9 C   POINT TO THE START AND END OF AN "RPC" WINDOW (I.E. ITERATION OF
  10 C   AN 8-BIT OR 16-BIT DELAYED REPLICATION SEQUENCE), THIS SUBROUTINE
  11 C   COMPUTES THE START AND END INDICES OF THE NEXT WINDOW.
  12 C
  13 C PROGRAM HISTORY LOG:
  14 C 1994-01-06  J. WOOLLEN -- ORIGINAL AUTHOR
  15 C 1998-07-08  J. WOOLLEN -- REPLACED CALL TO CRAY LIBRARY ROUTINE
  16 C                           "ABORT" WITH CALL TO NEW INTERNAL BUFRLIB
  17 C                           ROUTINE "BORT"
  18 C 1999-11-18  J. WOOLLEN -- THE NUMBER OF BUFR FILES WHICH CAN BE
  19 C                           OPENED AT ONE TIME INCREASED FROM 10 TO 32
  20 C                           (NECESSARY IN ORDER TO PROCESS MULTIPLE
  21 C                           BUFR FILES UNDER THE MPI)
  22 C 2002-05-14  J. WOOLLEN -- REMOVED OLD CRAY COMPILER DIRECTIVES
  23 C 2003-11-04  S. BENDER  -- ADDED REMARKS/BUFRLIB ROUTINE
  24 C                           INTERDEPENDENCIES
  25 C 2003-11-04  D. KEYSER  -- MAXJL (MAXIMUM NUMBER OF JUMP/LINK ENTRIES)
  26 C                           INCREASED FROM 15000 TO 16000 (WAS IN
  27 C                           VERIFICATION VERSION); UNIFIED/PORTABLE FOR
  28 C                           WRF; ADDED DOCUMENTATION (INCLUDING
  29 C                           HISTORY) (INCOMPLETE); OUTPUTS MORE
  30 C                           COMPLETE DIAGNOSTIC INFO WHEN ROUTINE
  31 C                           TERMINATES ABNORMALLY
  32 C 2009-03-31  J. WOOLLEN -- ADDED ADDITIONAL DOCUMENTATION
  33 C 2009-05-07  J. ATOR    -- USE LSTJPB INSTEAD OF LSTRPC
  34 C
  35 C USAGE:    CALL NXTWIN (LUN, IWIN, JWIN)
  36 C   INPUT ARGUMENT LIST:
  37 C     LUN      - INTEGER: I/O STREAM INDEX INTO INTERNAL MEMORY ARRAYS
  38 C     IWIN     - INTEGER: STARTING INDEX OF CURRENT WINDOW ITERATION
  39 C     JWIN     - INTEGER: ENDING INDEX OF CURRENT WINDOW ITERATION
  40 C
  41 C   OUTPUT ARGUMENT LIST:
  42 C     IWIN     - INTEGER: STARTING INDEX OF NEXT WINDOW ITERATION
  43 C     JWIN     - INTEGER: ENDING INDEX OF NEXT WINDOW ITERATION
  44 C
  45 C REMARKS:
  46 C
  47 C    SEE THE DOCBLOCK IN BUFR ARCHIVE LIBRARY SUBROUTINE GETWIN FOR AN
  48 C    EXPLANATION OF "WINDOWS" WITHIN THE CONTEXT OF A BUFR DATA SUBSET.
  49 C
  50 C    THIS ROUTINE CALLS:        BORT     LSTJPB
  51 C    THIS ROUTINE IS CALLED BY: UFBEVN   UFBIN3   UFBRW
  52 C                               Normally not called by any application
  53 C                               programs.
  54 C
  55 C ATTRIBUTES:
  56 C   LANGUAGE: FORTRAN 77
  57 C   MACHINE:  PORTABLE TO ALL PLATFORMS
  58 C
  59 C$$$
  60
  61       INCLUDE 'bufrlib.prm'
  62
  63       COMMON /USRINT/ NVAL(NFILES),INV(MAXSS,NFILES),VAL(MAXSS,NFILES)
  64
  65       CHARACTER*128 BORT_STR
  66       REAL*8        VAL
  67
  68 C----------------------------------------------------------------------
  69 C----------------------------------------------------------------------
  70
  71       IF(JWIN.EQ.NVAL(LUN)) THEN
  72          IWIN = 0
  73          GOTO 100
  74       ENDIF
  75
  76 C  FIND THE NEXT SEQUENTIAL WINDOW
  77 C  -------------------------------
  78
  79       NODE = INV(IWIN,LUN)
  80       IF(LSTJPB(NODE,LUN,'RPC').NE.NODE) GOTO 900
  81       IF(VAL(JWIN,LUN).EQ.0) THEN
  82          IWIN = 0
  83       ELSE
  84          IWIN = JWIN
  85          JWIN = IWIN+VAL(IWIN,LUN)
  86       ENDIF
  87
  88 C  EXITS
  89 C  -----
  90
  91 100   RETURN
  92 900   WRITE(BORT_STR,'("BUFRLIB: NXTWIN - LSTJPB FOR NODE",I6," '//
  93      . '(LSTJPB=",I5,") DOES NOT EQUAL VALUE OF NODE, NOT RPC (IWIN '//
  94      . '=",I8,")")') NODE,LSTJPB(NODE,LUN,'RPC'),IWIN
  95       CALL BORT(BORT_STR)
  96       END