*DECK DMLCLS                                                            004990
      PROC DMLCLS (FIT,REALMORD,ERRRTRN); 
  BEGIN                                                                 005010
 #
* *   DMLCLS - CLOSE INTERFACE ROUTINE
*     R. E. FOX                                      4/25/77
* 
* DC  PURPOSE 
* 
*     ISSUE A CLOSE REQUEST TO CDCS AND 
*     CHECK FOR AN ERROR CONDITION UPON RETURNING FROM CDCS.
*     ON ERROR, CAUSES A BRANCH TO AN ALTERNATE RETURN IN THE 
*     APPLICATION PROGRAM IF SPECIFIED, ELSE, RETURNS NORMALLY. 
*     RETURN THE FIT STATUS FIELD TO THE APPLICATION PROGRAM
* 
* DC  ENTRY CONDITIONS
* 
* DC  PARAMETERS
* 
*     FIT  --    APPLICATION PROGRAM FIT FOR REALM TO BE CLOSED 
* 
*     REALMORD  -- ORDINAL OF THE REALM TO BE CLOSED
* 
*     ERRRTRN  --  (OPTIONAL) ALTERNATE RETURN ON ERROR (FTN 5 ONLY)
*                  WARNING:  DO NOT REFERENCE - MAY NOT BE PRESENT
* 
* DC  ASSUMPTIONS 
* 
*     COMMON BLOCK DB0000 HAS BEEN GENERATED AND INITIALIZED
* 
* 
* DC  EXIT CONDITIONS 
* 
*     UPON RETURN FROM CDCS, THE FIT ES FIELD IS STORED 
*     IN DBSTAT AND IN DBSXXXX AND DBREALM IS SET TO THE
*     NAME OF THE REALM IN THE DML STATEMENT. 
*     CONTROL IS RETURNED TO THE APPLICATION PROGRAM. 
*     THE RETURN POINT CAN BE ALTERED GIVEN AN *ON ERROR* 
*     LABEL AND THE DETECTION OF AN ERROR (FTN 5 ONLY). 
* 
* DC  CALLING ROUTINES
* 
*     DMLCLS IS CALLED FROM THE APPLICATION PROGRAM 
*     AS A RESULT OF A DML CLOSE STATEMENT. 
* 
* DC  CALLED ROUTINES 
* 
*     DB$CLS  --     CDCS CLOSE INTERFACE ROUTINE 
* 
*     DMLRTRN  --  RETURN ROUTINE--SETS REGISTER TO RETURN PARAMETER
* 
* DC  NON-LOCAL VARIABLES 
* 
*     VARIABLES IN DB0000 WHICH ARE MODIFIED ARE: 
*     DBSTAT, DBSXXXX, DBREALM
* 
* DC  DESCRIPTION 
* 
*     A CALL TO DMLCLS IS GENERATED BY THE PREPASS AS 
*     A RESULT OF A DML CLOSE STATEMENT. DMLCLS ISSUES THE CLOSE
*     REQUEST TO CDCS, RETURNS THE FIT STATUS FIELDS TO THE APPLICATION 
*     PROGRAM, AND RETURNS CONTROL TO THE APPLICATION PROGRAM.
*     WITH FORTRAN 5, AN ALTERNATE RETURN CAN BE SPECIFIED.  IF AN
*     ERROR IS DETECTED, CONTROL IS PASSED TO THE SPECIFIED LABEL 
*     IN THE APPLICATION PROGRAM. 
* 
 #
      CONTROL EJECT;                                                    005020
      CONTROL DISJOINT;                                                 005030
      CONTROL INERT;                                                    005040
                                                                        005050
                                        #-------------DEFS-------------#
  
      DEF RDNTCLS     #O"654"#;         # REDUNDANT CLOSE CODE - CDCS  #
      DEF FITSIZE     # 35 #;           # SIZE OF FIT IN WORDS         #005080
                                                                        005090
# THE FOLLOWING ARE PARAMETERS FROM THE "CLOSE" CALLING SEQUENCE       #005100
                                                                        005110
      ARRAY FIT;                 # USER FIT                            #005120
*CALL FITDCLS                                                           005130
                                                                        005140
      ITEM REALMORD;                        # REALM ORDINAL            #005150
                                                                        005160
      ITEM ERRRTRN;                         # ERROR RETURN PARAMETER   #
                                            # WARNING: DO NOT REFERENCE#
  
# THE FOLLOWING DESCRIBES THE COMMON BLOCK CREATED IN THE FORTRAN      #005170
#     PROGRAM                                                          #005180
                                                                        005190
      COMMON DB0000;                                                    005200
*CALL DB0DCLS                                                           005210
                                                                        005220
                                        #------------XREFS-------------#
  
      XREF
        BEGIN 
        PROC DB$CLS;                    # CLOSE INTERFACE ROUTINE      #
        PROC DMLRTRN;                   # SET RETURN REGISTER ROUTINE  #
        END 
  
                                        #----------LOCAL ITEMS---------#
  
      ITEM RTNPARM;                     # RETURN PARAMETER - DMLRTRN   #
  
      CONTROL EJECT;                                                    005260
                                                                        005270
# SET UP POINTER TO REALMBLOCK   #                                      005280
      P<REALMBLOCK> = LOC(FIT) - 4;                                     005290
      P<DBTXXXX> = LOC(FIT) + FITSIZE;                                  000200
                                                                        005300
# ISSUE CLOSE REQUEST PASSING THE FIT AND REALM ORDINAL                #005310
                                                                        005320
      DB$CLS( FIT, REALMORD);                                           005330
                                                                        005340
# RETURN ERROR STATUS FIELD OF FIT                                     #005350
                                                                        005360
      DBSTAT = FITES[0];                                                005370
      DBSXXXX = FITES[0];                                               000190
      DBREALM = DBRXXXX;                                                000200
                                                                        005400
# CHECK ERROR STATUS ON CDCS CALL                                      #
  
      IF (FITES[0] NQ 0)                # IF CDCS/CRM ERROR OCCURRED   #
        AND (FITES[0] NQ RDNTCLS)       # AND IT IS NOT REDUNDANT CLOSE#
      THEN
        RTNPARM = 1;                    # SET THE RETURN PARAMETER TO 1#
      ELSE                              #             ELSE             #
        RTNPARM = 0;                    # SET THE RETURN PARAMETER TO 0#
  
# SET THE RETURN REGISTER                                              #
  
      DMLRTRN(RTNPARM); 
  
# RETURN TO THE APPLICATION PROGRAM                                    #
  
      RETURN;                                                           005410
      END                                                               005420
TERM                                                                    005430
