/* ekbseg.f -- translated by f2c (version 19980913).
   You must link the resulting object file with the libraries:
	-lf2c -lm   (in that order)
*/

#include "f2c.h"

/* Table of constant values */

static integer c__512 = 512;
static integer c__32 = 32;
static integer c__1 = 1;
static integer c__100 = 100;

/* $Procedure      EKBSEG ( EK, start new segment ) */
/* Subroutine */ int ekbseg_(integer *handle, char *tabnam, integer *ncols, 
	char *cnames, char *decls, integer *segno, ftnlen tabnam_len, ftnlen 
	cnames_len, ftnlen decls_len)
{
    /* Initialized data */

    static logical first = TRUE_;

    /* System generated locals */
    integer i__1, i__2;

    /* Builtin functions */
    integer s_rnge(char *, integer, char *, integer);

    /* Local variables */
    extern /* Subroutine */ int zzekpdec_(char *, integer *, ftnlen), 
	    zzekpgch_(integer *, char *, ftnlen);
    integer i__;
    extern integer zzekstyp_(integer *, integer *);
    integer idend;
    extern /* Subroutine */ int chkin_(char *, ftnlen), errch_(char *, char *,
	     ftnlen, ftnlen);
    integer stype;
    extern logical failed_(void);
    extern /* Subroutine */ int chckid_(char *, integer *, char *, ftnlen, 
	    ftnlen);
    extern integer lastnb_(char *, ftnlen);
    extern logical return_(void);
    integer cdscrs[1100]	/* was [11][100] */;
    static integer idspec[518];
    integer nchars;
    extern /* Subroutine */ int chkout_(char *, ftnlen), ssizei_(integer *, 
	    integer *), lxdfid_(integer *), lxidnt_(integer *, char *, 
	    integer *, integer *, integer *, ftnlen), setmsg_(char *, ftnlen),
	     sigerr_(char *, ftnlen), errint_(char *, integer *, ftnlen), 
	    zzekbs01_(integer *, char *, integer *, char *, integer *, 
	    integer *, ftnlen, ftnlen), zzekbs02_(integer *, char *, integer *
	    , char *, integer *, integer *, ftnlen, ftnlen);

/* $ Abstract */

/*     Start a new segment in an E-kernel. */

/* $ Disclaimer */

/*     THIS SOFTWARE AND ANY RELATED MATERIALS WERE CREATED BY THE */
/*     CALIFORNIA INSTITUTE OF TECHNOLOGY (CALTECH) UNDER A U.S. */
/*     GOVERNMENT CONTRACT WITH THE NATIONAL AERONAUTICS AND SPACE */
/*     ADMINISTRATION (NASA). THE SOFTWARE IS TECHNOLOGY AND SOFTWARE */
/*     PUBLICLY AVAILABLE UNDER U.S. EXPORT LAWS AND IS PROVIDED "AS-IS" */
/*     TO THE RECIPIENT WITHOUT WARRANTY OF ANY KIND, INCLUDING ANY */
/*     WARRANTIES OF PERFORMANCE OR MERCHANTABILITY OR FITNESS FOR A */
/*     PARTICULAR USE OR PURPOSE (AS SET FORTH IN UNITED STATES UCC */
/*     SECTIONS 2312-2313) OR FOR ANY PURPOSE WHATSOEVER, FOR THE */
/*     SOFTWARE AND RELATED MATERIALS, HOWEVER USED. */

/*     IN NO EVENT SHALL CALTECH, ITS JET PROPULSION LABORATORY, OR NASA */
/*     BE LIABLE FOR ANY DAMAGES AND/OR COSTS, INCLUDING, BUT NOT */
/*     LIMITED TO, INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND, */
/*     INCLUDING ECONOMIC DAMAGE OR INJURY TO PROPERTY AND LOST PROFITS, */
/*     REGARDLESS OF WHETHER CALTECH, JPL, OR NASA BE ADVISED, HAVE */
/*     REASON TO KNOW, OR, IN FACT, SHALL KNOW OF THE POSSIBILITY. */

/*     RECIPIENT BEARS ALL RISK RELATING TO QUALITY AND PERFORMANCE OF */
/*     THE SOFTWARE AND ANY RELATED MATERIALS, AND AGREES TO INDEMNIFY */
/*     CALTECH AND NASA FOR ALL THIRD-PARTY CLAIMS RESULTING FROM THE */
/*     ACTIONS OF RECIPIENT IN THE USE OF THE SOFTWARE. */

/* $ Required_Reading */

/*     EK */

/* $ Keywords */

/*     EK */

/* $ Declarations */
/* $ Disclaimer */

/*     THIS SOFTWARE AND ANY RELATED MATERIALS WERE CREATED BY THE */
/*     CALIFORNIA INSTITUTE OF TECHNOLOGY (CALTECH) UNDER A U.S. */
/*     GOVERNMENT CONTRACT WITH THE NATIONAL AERONAUTICS AND SPACE */
/*     ADMINISTRATION (NASA). THE SOFTWARE IS TECHNOLOGY AND SOFTWARE */
/*     PUBLICLY AVAILABLE UNDER U.S. EXPORT LAWS AND IS PROVIDED "AS-IS" */
/*     TO THE RECIPIENT WITHOUT WARRANTY OF ANY KIND, INCLUDING ANY */
/*     WARRANTIES OF PERFORMANCE OR MERCHANTABILITY OR FITNESS FOR A */
/*     PARTICULAR USE OR PURPOSE (AS SET FORTH IN UNITED STATES UCC */
/*     SECTIONS 2312-2313) OR FOR ANY PURPOSE WHATSOEVER, FOR THE */
/*     SOFTWARE AND RELATED MATERIALS, HOWEVER USED. */

/*     IN NO EVENT SHALL CALTECH, ITS JET PROPULSION LABORATORY, OR NASA */
/*     BE LIABLE FOR ANY DAMAGES AND/OR COSTS, INCLUDING, BUT NOT */
/*     LIMITED TO, INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND, */
/*     INCLUDING ECONOMIC DAMAGE OR INJURY TO PROPERTY AND LOST PROFITS, */
/*     REGARDLESS OF WHETHER CALTECH, JPL, OR NASA BE ADVISED, HAVE */
/*     REASON TO KNOW, OR, IN FACT, SHALL KNOW OF THE POSSIBILITY. */

/*     RECIPIENT BEARS ALL RISK RELATING TO QUALITY AND PERFORMANCE OF */
/*     THE SOFTWARE AND ANY RELATED MATERIALS, AND AGREES TO INDEMNIFY */
/*     CALTECH AND NASA FOR ALL THIRD-PARTY CLAIMS RESULTING FROM THE */
/*     ACTIONS OF RECIPIENT IN THE USE OF THE SOFTWARE. */


/*     Include Section:  EK Boolean Enumerated Type */


/*        ekbool.inc Version 1   21-DEC-1994 (NJB) */


/*     Within the EK system, boolean values sometimes must be */
/*     represented by integer or character codes.  The codes and their */
/*     meanings are listed below. */

/*     Integer code indicating `true': */


/*     Integer code indicating `false': */


/*     Character code indicating `true': */


/*     Character code indicating `false': */


/*     End Include Section:  EK Boolean Enumerated Type */

/* $ Disclaimer */

/*     THIS SOFTWARE AND ANY RELATED MATERIALS WERE CREATED BY THE */
/*     CALIFORNIA INSTITUTE OF TECHNOLOGY (CALTECH) UNDER A U.S. */
/*     GOVERNMENT CONTRACT WITH THE NATIONAL AERONAUTICS AND SPACE */
/*     ADMINISTRATION (NASA). THE SOFTWARE IS TECHNOLOGY AND SOFTWARE */
/*     PUBLICLY AVAILABLE UNDER U.S. EXPORT LAWS AND IS PROVIDED "AS-IS" */
/*     TO THE RECIPIENT WITHOUT WARRANTY OF ANY KIND, INCLUDING ANY */
/*     WARRANTIES OF PERFORMANCE OR MERCHANTABILITY OR FITNESS FOR A */
/*     PARTICULAR USE OR PURPOSE (AS SET FORTH IN UNITED STATES UCC */
/*     SECTIONS 2312-2313) OR FOR ANY PURPOSE WHATSOEVER, FOR THE */
/*     SOFTWARE AND RELATED MATERIALS, HOWEVER USED. */

/*     IN NO EVENT SHALL CALTECH, ITS JET PROPULSION LABORATORY, OR NASA */
/*     BE LIABLE FOR ANY DAMAGES AND/OR COSTS, INCLUDING, BUT NOT */
/*     LIMITED TO, INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND, */
/*     INCLUDING ECONOMIC DAMAGE OR INJURY TO PROPERTY AND LOST PROFITS, */
/*     REGARDLESS OF WHETHER CALTECH, JPL, OR NASA BE ADVISED, HAVE */
/*     REASON TO KNOW, OR, IN FACT, SHALL KNOW OF THE POSSIBILITY. */

/*     RECIPIENT BEARS ALL RISK RELATING TO QUALITY AND PERFORMANCE OF */
/*     THE SOFTWARE AND ANY RELATED MATERIALS, AND AGREES TO INDEMNIFY */
/*     CALTECH AND NASA FOR ALL THIRD-PARTY CLAIMS RESULTING FROM THE */
/*     ACTIONS OF RECIPIENT IN THE USE OF THE SOFTWARE. */


/*     Include Section:  EK Column Descriptor Parameters */

/*        ekcoldsc.inc Version 6    23-AUG-1995 (NJB) */


/*     Note:  The column descriptor size parameter CDSCSZ  is */
/*     declared separately in the include section CDSIZE$INC.FOR. */

/*     Offset of column descriptors, relative to start of segment */
/*     integer address range.  This number, when added to the last */
/*     integer address preceding the segment, yields the DAS integer */
/*     base address of the first column descriptor.  Currently, this */
/*     offset is exactly the size of a segment descriptor.  The */
/*     parameter SDSCSZ, which defines the size of a segment descriptor, */
/*     is declared in the include file eksegdsc.inc. */


/*     Size of column descriptor */


/*     Indices of various pieces of column descriptors: */


/*     CLSIDX is the index of the column's class code.  (We use the */
/*     word `class' to distinguish this item from the column's data */
/*     type.) */


/*     TYPIDX is the index of the column's data type code (CHR, INT, DP, */
/*     or TIME).  The type is actually implied by the class, but it */
/*     will frequently be convenient to look up the type directly. */



/*     LENIDX is the index of the column's string length value, if the */
/*     column has character type.  A value of IFALSE in this element of */
/*     the descriptor indicates that the strings have variable length. */


/*     SIZIDX is the index of the column's element size value.  This */
/*     descriptor element is meaningful for columns with fixed-size */
/*     entries.  For variable-sized columns, this value is IFALSE. */


/*     NAMIDX is the index of the base address of the column's name. */


/*     IXTIDX is the data type of the column's index.  IXTIDX */
/*     contains a type value only if the column is indexed. For columns */
/*     that are not indexed, the location IXTIDX contains the boolean */
/*     value IFALSE. */


/*     IXPIDX is a pointer to the column's index.  IXTPDX contains a */
/*     meaningful value only if the column is indexed.  The */
/*     interpretation of the pointer depends on the data type of the */
/*     index. */


/*     NFLIDX is the index of a flag indicating whether nulls are */
/*     permitted in the column.  The value at location NFLIDX is */
/*     ITRUE if nulls are permitted and IFALSE otherwise. */


/*     ORDIDX is the index of the column's ordinal position in the */
/*     list of columns belonging to the column's parent segment. */


/*     METIDX is the index of the column's integer metadata pointer. */
/*     This pointer is a DAS integer address. */


/*     The last position in the column descriptor is reserved.  No */
/*     parameter is defined to point to this location. */


/*     End Include Section:  EK Column Descriptor Parameters */

/* $ Disclaimer */

/*     THIS SOFTWARE AND ANY RELATED MATERIALS WERE CREATED BY THE */
/*     CALIFORNIA INSTITUTE OF TECHNOLOGY (CALTECH) UNDER A U.S. */
/*     GOVERNMENT CONTRACT WITH THE NATIONAL AERONAUTICS AND SPACE */
/*     ADMINISTRATION (NASA). THE SOFTWARE IS TECHNOLOGY AND SOFTWARE */
/*     PUBLICLY AVAILABLE UNDER U.S. EXPORT LAWS AND IS PROVIDED "AS-IS" */
/*     TO THE RECIPIENT WITHOUT WARRANTY OF ANY KIND, INCLUDING ANY */
/*     WARRANTIES OF PERFORMANCE OR MERCHANTABILITY OR FITNESS FOR A */
/*     PARTICULAR USE OR PURPOSE (AS SET FORTH IN UNITED STATES UCC */
/*     SECTIONS 2312-2313) OR FOR ANY PURPOSE WHATSOEVER, FOR THE */
/*     SOFTWARE AND RELATED MATERIALS, HOWEVER USED. */

/*     IN NO EVENT SHALL CALTECH, ITS JET PROPULSION LABORATORY, OR NASA */
/*     BE LIABLE FOR ANY DAMAGES AND/OR COSTS, INCLUDING, BUT NOT */
/*     LIMITED TO, INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND, */
/*     INCLUDING ECONOMIC DAMAGE OR INJURY TO PROPERTY AND LOST PROFITS, */
/*     REGARDLESS OF WHETHER CALTECH, JPL, OR NASA BE ADVISED, HAVE */
/*     REASON TO KNOW, OR, IN FACT, SHALL KNOW OF THE POSSIBILITY. */

/*     RECIPIENT BEARS ALL RISK RELATING TO QUALITY AND PERFORMANCE OF */
/*     THE SOFTWARE AND ANY RELATED MATERIALS, AND AGREES TO INDEMNIFY */
/*     CALTECH AND NASA FOR ALL THIRD-PARTY CLAIMS RESULTING FROM THE */
/*     ACTIONS OF RECIPIENT IN THE USE OF THE SOFTWARE. */


/*     Include Section:  EK Column Name Size */

/*        ekcnamsz.inc Version 1    17-JAN-1995 (NJB) */


/*     Size of column name, in characters. */


/*     End Include Section:  EK Column Name Size */

/* $ Disclaimer */

/*     THIS SOFTWARE AND ANY RELATED MATERIALS WERE CREATED BY THE */
/*     CALIFORNIA INSTITUTE OF TECHNOLOGY (CALTECH) UNDER A U.S. */
/*     GOVERNMENT CONTRACT WITH THE NATIONAL AERONAUTICS AND SPACE */
/*     ADMINISTRATION (NASA). THE SOFTWARE IS TECHNOLOGY AND SOFTWARE */
/*     PUBLICLY AVAILABLE UNDER U.S. EXPORT LAWS AND IS PROVIDED "AS-IS" */
/*     TO THE RECIPIENT WITHOUT WARRANTY OF ANY KIND, INCLUDING ANY */
/*     WARRANTIES OF PERFORMANCE OR MERCHANTABILITY OR FITNESS FOR A */
/*     PARTICULAR USE OR PURPOSE (AS SET FORTH IN UNITED STATES UCC */
/*     SECTIONS 2312-2313) OR FOR ANY PURPOSE WHATSOEVER, FOR THE */
/*     SOFTWARE AND RELATED MATERIALS, HOWEVER USED. */

/*     IN NO EVENT SHALL CALTECH, ITS JET PROPULSION LABORATORY, OR NASA */
/*     BE LIABLE FOR ANY DAMAGES AND/OR COSTS, INCLUDING, BUT NOT */
/*     LIMITED TO, INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND, */
/*     INCLUDING ECONOMIC DAMAGE OR INJURY TO PROPERTY AND LOST PROFITS, */
/*     REGARDLESS OF WHETHER CALTECH, JPL, OR NASA BE ADVISED, HAVE */
/*     REASON TO KNOW, OR, IN FACT, SHALL KNOW OF THE POSSIBILITY. */

/*     RECIPIENT BEARS ALL RISK RELATING TO QUALITY AND PERFORMANCE OF */
/*     THE SOFTWARE AND ANY RELATED MATERIALS, AND AGREES TO INDEMNIFY */
/*     CALTECH AND NASA FOR ALL THIRD-PARTY CLAIMS RESULTING FROM THE */
/*     ACTIONS OF RECIPIENT IN THE USE OF THE SOFTWARE. */


/*     Include Section:  EK Data Page Parameters */

/*        ekfilpar.inc  Version 1  03-APR-1995 (NJB) */

/*     These parameters apply to EK files using architecture 4. */
/*     These files use a paged DAS file as their underlying file */
/*     structure. */

/*     In paged DAS EK files, data pages are structured:  they contain */
/*     metadata as well as data.  The metadata is located in the last */
/*     few addresses of each page, so as to interfere as little as */
/*     possible with calculation of data addresses. */

/*     Each data page belongs to exactly one segment.  Some bookkeeping */
/*     information, such as record pointers, is also stored in data */
/*     pages. */

/*     Each page contains a forward pointer that allows rapid lookup */
/*     of data items that span multiple pages.  Each page also keeps */
/*     track of the current number of links from its parent segment */
/*     to the page.  Link counts enable pages to `know' when they */
/*     are no longer in use by a segment; unused pages are deallocated */
/*     and returned to the free list. */

/*     The parameters in this include file depend on the parameters */
/*     declared in the include file ekpage.inc.  If those parameters */
/*     change, this file must be updated.  The specified parameter */
/*     declarations we need from that file are: */

/*        INTEGER               PGSIZC */
/*        PARAMETER           ( PGSIZC = 1024 ) */

/*        INTEGER               PGSIZD */
/*        PARAMETER           ( PGSIZD = 128 ) */

/*        INTEGER               PGSIZI */
/*        PARAMETER           ( PGSIZI = 256 ) */



/*     Character pages use an encoding mechanism to represent integer */
/*     metadata.  Each integer is encoded in five consecutive */
/*     characters. */


/*     Character data page parameters: */


/*     Size of encoded integer: */


/*     Usable page size: */


/*     Location of character forward pointer: */


/*     Location of character link count: */


/*     Double precision data page parameters: */

/*     Usable page size: */


/*     Location of d.p. forward pointer: */


/*     Location of d.p. link count: */


/*     Integer data page parameters: */

/*     Usable page size: */


/*     Location of integer forward pointer: */


/*     Location of integer link count: */


/*     End Include Section:  EK Data Page Parameters */

/* $ Disclaimer */

/*     THIS SOFTWARE AND ANY RELATED MATERIALS WERE CREATED BY THE */
/*     CALIFORNIA INSTITUTE OF TECHNOLOGY (CALTECH) UNDER A U.S. */
/*     GOVERNMENT CONTRACT WITH THE NATIONAL AERONAUTICS AND SPACE */
/*     ADMINISTRATION (NASA). THE SOFTWARE IS TECHNOLOGY AND SOFTWARE */
/*     PUBLICLY AVAILABLE UNDER U.S. EXPORT LAWS AND IS PROVIDED "AS-IS" */
/*     TO THE RECIPIENT WITHOUT WARRANTY OF ANY KIND, INCLUDING ANY */
/*     WARRANTIES OF PERFORMANCE OR MERCHANTABILITY OR FITNESS FOR A */
/*     PARTICULAR USE OR PURPOSE (AS SET FORTH IN UNITED STATES UCC */
/*     SECTIONS 2312-2313) OR FOR ANY PURPOSE WHATSOEVER, FOR THE */
/*     SOFTWARE AND RELATED MATERIALS, HOWEVER USED. */

/*     IN NO EVENT SHALL CALTECH, ITS JET PROPULSION LABORATORY, OR NASA */
/*     BE LIABLE FOR ANY DAMAGES AND/OR COSTS, INCLUDING, BUT NOT */
/*     LIMITED TO, INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND, */
/*     INCLUDING ECONOMIC DAMAGE OR INJURY TO PROPERTY AND LOST PROFITS, */
/*     REGARDLESS OF WHETHER CALTECH, JPL, OR NASA BE ADVISED, HAVE */
/*     REASON TO KNOW, OR, IN FACT, SHALL KNOW OF THE POSSIBILITY. */

/*     RECIPIENT BEARS ALL RISK RELATING TO QUALITY AND PERFORMANCE OF */
/*     THE SOFTWARE AND ANY RELATED MATERIALS, AND AGREES TO INDEMNIFY */
/*     CALTECH AND NASA FOR ALL THIRD-PARTY CLAIMS RESULTING FROM THE */
/*     ACTIONS OF RECIPIENT IN THE USE OF THE SOFTWARE. */


/*     Include Section:  EK File Metadata Parameters */

/*        ekfilpar.inc  Version 1  28-MAR-1995 (NJB) */

/*     These parameters apply to EK files using architecture 4. */
/*     These files use a paged DAS file as their underlying file */
/*     structure. */

/*     The metadata for an architecture 4 EK file is very simple:  it */
/*     consists of a single integer, which is a pointer to a tree */
/*     that in turn points to the segments in the EK.  However, in the */
/*     interest of upward compatibility, one integer page is reserved */
/*     for the file's metadata. */


/*     Size of file parameter block: */


/*     All offsets shown below are relative to the beginning of the */
/*     first integer page in the EK. */


/*     Index of the segment pointer tree---this location contains the */
/*     root page number of the tree: */


/*     End Include Section:  EK File Metadata Parameters */

/* $ Disclaimer */

/*     THIS SOFTWARE AND ANY RELATED MATERIALS WERE CREATED BY THE */
/*     CALIFORNIA INSTITUTE OF TECHNOLOGY (CALTECH) UNDER A U.S. */
/*     GOVERNMENT CONTRACT WITH THE NATIONAL AERONAUTICS AND SPACE */
/*     ADMINISTRATION (NASA). THE SOFTWARE IS TECHNOLOGY AND SOFTWARE */
/*     PUBLICLY AVAILABLE UNDER U.S. EXPORT LAWS AND IS PROVIDED "AS-IS" */
/*     TO THE RECIPIENT WITHOUT WARRANTY OF ANY KIND, INCLUDING ANY */
/*     WARRANTIES OF PERFORMANCE OR MERCHANTABILITY OR FITNESS FOR A */
/*     PARTICULAR USE OR PURPOSE (AS SET FORTH IN UNITED STATES UCC */
/*     SECTIONS 2312-2313) OR FOR ANY PURPOSE WHATSOEVER, FOR THE */
/*     SOFTWARE AND RELATED MATERIALS, HOWEVER USED. */

/*     IN NO EVENT SHALL CALTECH, ITS JET PROPULSION LABORATORY, OR NASA */
/*     BE LIABLE FOR ANY DAMAGES AND/OR COSTS, INCLUDING, BUT NOT */
/*     LIMITED TO, INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND, */
/*     INCLUDING ECONOMIC DAMAGE OR INJURY TO PROPERTY AND LOST PROFITS, */
/*     REGARDLESS OF WHETHER CALTECH, JPL, OR NASA BE ADVISED, HAVE */
/*     REASON TO KNOW, OR, IN FACT, SHALL KNOW OF THE POSSIBILITY. */

/*     RECIPIENT BEARS ALL RISK RELATING TO QUALITY AND PERFORMANCE OF */
/*     THE SOFTWARE AND ANY RELATED MATERIALS, AND AGREES TO INDEMNIFY */
/*     CALTECH AND NASA FOR ALL THIRD-PARTY CLAIMS RESULTING FROM THE */
/*     ACTIONS OF RECIPIENT IN THE USE OF THE SOFTWARE. */


/*     Include Section:  EK General Limit Parameters */

/*        ekglimit.inc  Version 1    21-MAY-1995 (NJB) */


/*     This file contains general limits for the EK system. */

/*     MXCLSG is the maximum number of columns allowed in a segment. */
/*     This limit applies to logical tables as well, since all segments */
/*     in a logical table must have the same column definitions. */


/*     End Include Section:  EK General Limit Parameters */

/* $ Disclaimer */

/*     THIS SOFTWARE AND ANY RELATED MATERIALS WERE CREATED BY THE */
/*     CALIFORNIA INSTITUTE OF TECHNOLOGY (CALTECH) UNDER A U.S. */
/*     GOVERNMENT CONTRACT WITH THE NATIONAL AERONAUTICS AND SPACE */
/*     ADMINISTRATION (NASA). THE SOFTWARE IS TECHNOLOGY AND SOFTWARE */
/*     PUBLICLY AVAILABLE UNDER U.S. EXPORT LAWS AND IS PROVIDED "AS-IS" */
/*     TO THE RECIPIENT WITHOUT WARRANTY OF ANY KIND, INCLUDING ANY */
/*     WARRANTIES OF PERFORMANCE OR MERCHANTABILITY OR FITNESS FOR A */
/*     PARTICULAR USE OR PURPOSE (AS SET FORTH IN UNITED STATES UCC */
/*     SECTIONS 2312-2313) OR FOR ANY PURPOSE WHATSOEVER, FOR THE */
/*     SOFTWARE AND RELATED MATERIALS, HOWEVER USED. */

/*     IN NO EVENT SHALL CALTECH, ITS JET PROPULSION LABORATORY, OR NASA */
/*     BE LIABLE FOR ANY DAMAGES AND/OR COSTS, INCLUDING, BUT NOT */
/*     LIMITED TO, INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND, */
/*     INCLUDING ECONOMIC DAMAGE OR INJURY TO PROPERTY AND LOST PROFITS, */
/*     REGARDLESS OF WHETHER CALTECH, JPL, OR NASA BE ADVISED, HAVE */
/*     REASON TO KNOW, OR, IN FACT, SHALL KNOW OF THE POSSIBILITY. */

/*     RECIPIENT BEARS ALL RISK RELATING TO QUALITY AND PERFORMANCE OF */
/*     THE SOFTWARE AND ANY RELATED MATERIALS, AND AGREES TO INDEMNIFY */
/*     CALTECH AND NASA FOR ALL THIRD-PARTY CLAIMS RESULTING FROM THE */
/*     ACTIONS OF RECIPIENT IN THE USE OF THE SOFTWARE. */


/*     Include Section:  EK Das Paging Parameters */

/*        ekpage.inc  Version 4    25-AUG-1995 (NJB) */



/*     The EK DAS paging system makes use of the integer portion */
/*     of an EK file's DAS address space to store the few numbers */
/*     required to describe the system's state.  The allocation */
/*     of DAS integer addresses is shown below. */


/*                       DAS integer array */

/*        +--------------------------------------------+ */
/*        |            EK architecture code            |  Address = 1 */
/*        +--------------------------------------------+ */
/*        |      Character page size (in DAS words)    | */
/*        +--------------------------------------------+ */
/*        |        Character page base address         | */
/*        +--------------------------------------------+ */
/*        |      Number of character pages in file     | */
/*        +--------------------------------------------+ */
/*        |   Number of character pages on free list   | */
/*        +--------------------------------------------+ */
/*        |      Character free list head pointer      |  Address = 6 */
/*        +--------------------------------------------+ */
/*        |                                            |  Addresses = */
/*        |           Metadata for d.p. pages          |    7--11 */
/*        |                                            | */
/*        +--------------------------------------------+ */
/*        |                                            |  Addresses = */
/*        |         Metadata for integer pages         |    12--16 */
/*        |                                            | */
/*        +--------------------------------------------+ */
/*                              . */
/*                              . */
/*                              . */
/*        +--------------------------------------------+ */
/*        |                                            |  End Address = */
/*        |                Unused space                |  integer page */
/*        |                                            |  end */
/*        +--------------------------------------------+ */
/*        |                                            |  Start Address = */
/*        |             First integer page             |  integer page */
/*        |                                            |  base */
/*        +--------------------------------------------+ */
/*                              . */
/*                              . */
/*                              . */
/*        +--------------------------------------------+ */
/*        |                                            | */
/*        |              Last integer page             | */
/*        |                                            | */
/*        +--------------------------------------------+ */

/*     The following parameters indicate positions of elements in the */
/*     paging system metadata array: */



/*     Number of metadata items per data type: */


/*     Character metadata indices: */


/*     Double precision metadata indices: */


/*     Integer metadata indices: */


/*     Size of metadata area: */


/*     Page sizes, in units of DAS words of the appropriate type: */


/*     Default page base addresses: */


/*     End Include Section:  EK Das Paging Parameters */

/* $ Disclaimer */

/*     THIS SOFTWARE AND ANY RELATED MATERIALS WERE CREATED BY THE */
/*     CALIFORNIA INSTITUTE OF TECHNOLOGY (CALTECH) UNDER A U.S. */
/*     GOVERNMENT CONTRACT WITH THE NATIONAL AERONAUTICS AND SPACE */
/*     ADMINISTRATION (NASA). THE SOFTWARE IS TECHNOLOGY AND SOFTWARE */
/*     PUBLICLY AVAILABLE UNDER U.S. EXPORT LAWS AND IS PROVIDED "AS-IS" */
/*     TO THE RECIPIENT WITHOUT WARRANTY OF ANY KIND, INCLUDING ANY */
/*     WARRANTIES OF PERFORMANCE OR MERCHANTABILITY OR FITNESS FOR A */
/*     PARTICULAR USE OR PURPOSE (AS SET FORTH IN UNITED STATES UCC */
/*     SECTIONS 2312-2313) OR FOR ANY PURPOSE WHATSOEVER, FOR THE */
/*     SOFTWARE AND RELATED MATERIALS, HOWEVER USED. */

/*     IN NO EVENT SHALL CALTECH, ITS JET PROPULSION LABORATORY, OR NASA */
/*     BE LIABLE FOR ANY DAMAGES AND/OR COSTS, INCLUDING, BUT NOT */
/*     LIMITED TO, INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND, */
/*     INCLUDING ECONOMIC DAMAGE OR INJURY TO PROPERTY AND LOST PROFITS, */
/*     REGARDLESS OF WHETHER CALTECH, JPL, OR NASA BE ADVISED, HAVE */
/*     REASON TO KNOW, OR, IN FACT, SHALL KNOW OF THE POSSIBILITY. */

/*     RECIPIENT BEARS ALL RISK RELATING TO QUALITY AND PERFORMANCE OF */
/*     THE SOFTWARE AND ANY RELATED MATERIALS, AND AGREES TO INDEMNIFY */
/*     CALTECH AND NASA FOR ALL THIRD-PARTY CLAIMS RESULTING FROM THE */
/*     ACTIONS OF RECIPIENT IN THE USE OF THE SOFTWARE. */


/*     Include Section:  EK Record Pointer Parameters */

/*        ekrecptr.inc Version 2  18-JUL-1995 (NJB) */


/*     This file declares parameters used in EK record pointers. */
/*     Each segment references data in a given record via two levels */
/*     of indirection:  a record number points to a record pointer, */
/*     which is a structured array of metadata and data pointers. */

/*     Record pointers always occupy contiguous ranges of integer */
/*     addresses. */

/*     The parameter declarations in this file depend on the assumption */
/*     that integer pages contain 256 DAS integer words and that the */
/*     maximum number of columns in a segment is 100.  Record pointers */
/*     are stored in integer data pages, so they must fit within the */
/*     usable data area afforded by these pages.  The size of the usable */
/*     data area is given by the parameter IPSIZE which is declared in */
/*     ekdatpag.inc.  The assumed value of IPSIZE is 254. */


/*     The first element of each record pointer is a status indicator. */
/*     The meanings of status indicators depend on whether the parent EK */
/*     is shadowed or not.  For shadowed EKs, allowed status values and */
/*     their meanings are: */

/*        OLD       The record has not been modified since */
/*                  the EK containing the record was opened. */

/*        UPDATE    The record is an update of a previously existing */
/*                  record.  The original record is now on the */
/*                  modified record list. */

/*        NEW       The record has been added since the EK containing the */
/*                  record was opened.  The record is not an update */
/*                  of a previously existing record. */

/*        DELOLD    This status applies only to a backup record. */
/*                  DELOLD status indicates that the record corresponds */
/*                  to a deleted OLD record in the source segment. */

/*        DELNEW    This status applies only to a backup record. */
/*                  DELNEW status indicates that the record corresponds */
/*                  to a deleted NEW record in the source segment. */

/*        DELUPD    This status applies only to a backup record. */
/*                  DELUPD status indicates that the record corresponds */
/*                  to a deleted UPDATEd record in the source segment. */

/*     In EKs that are not shadowed, all records have status OLD. */



/*     The following parameters refer to indices within the record */
/*     pointer structure: */

/*     Index of status indicator: */


/*     Each record pointer contains a pointer to its companion:  for a */
/*     record belonging to a shadowed EK, this is the backup counterpart, */
/*     or if the parent EK is itself a backup EK, a pointer to the */
/*     record's source record.  The pointer is UNINIT (see below) if the */
/*     record is unmodified. */

/*     Record companion pointers contain record numbers, not record */
/*     base addresses. */

/*     Index of record's companion pointer: */


/*     Each data item is referenced by an integer.  The meaning of */
/*     this integer depends on the representation of data in the */
/*     column to which the data item belongs.  Actual lookup of a */
/*     data item must be done by subroutines appropriate to the class of */
/*     the column to which the item belongs.  Note that data items don't */
/*     necessarily occupy contiguous ranges of DAS addresses. */

/*     Base address of data pointers: */


/*     Maximum record pointer size: */


/*     Data pointers are given the value UNINIT to start with; this */
/*     indicates that the data item is uninitialized.  UNINIT is */
/*     distinct from the value NULL.  NOBACK indicates an uninitialized */
/*     backup column entry. */


/*     End Include Section:  EK Record Pointer Parameters */

/* $ Disclaimer */

/*     THIS SOFTWARE AND ANY RELATED MATERIALS WERE CREATED BY THE */
/*     CALIFORNIA INSTITUTE OF TECHNOLOGY (CALTECH) UNDER A U.S. */
/*     GOVERNMENT CONTRACT WITH THE NATIONAL AERONAUTICS AND SPACE */
/*     ADMINISTRATION (NASA). THE SOFTWARE IS TECHNOLOGY AND SOFTWARE */
/*     PUBLICLY AVAILABLE UNDER U.S. EXPORT LAWS AND IS PROVIDED "AS-IS" */
/*     TO THE RECIPIENT WITHOUT WARRANTY OF ANY KIND, INCLUDING ANY */
/*     WARRANTIES OF PERFORMANCE OR MERCHANTABILITY OR FITNESS FOR A */
/*     PARTICULAR USE OR PURPOSE (AS SET FORTH IN UNITED STATES UCC */
/*     SECTIONS 2312-2313) OR FOR ANY PURPOSE WHATSOEVER, FOR THE */
/*     SOFTWARE AND RELATED MATERIALS, HOWEVER USED. */

/*     IN NO EVENT SHALL CALTECH, ITS JET PROPULSION LABORATORY, OR NASA */
/*     BE LIABLE FOR ANY DAMAGES AND/OR COSTS, INCLUDING, BUT NOT */
/*     LIMITED TO, INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND, */
/*     INCLUDING ECONOMIC DAMAGE OR INJURY TO PROPERTY AND LOST PROFITS, */
/*     REGARDLESS OF WHETHER CALTECH, JPL, OR NASA BE ADVISED, HAVE */
/*     REASON TO KNOW, OR, IN FACT, SHALL KNOW OF THE POSSIBILITY. */

/*     RECIPIENT BEARS ALL RISK RELATING TO QUALITY AND PERFORMANCE OF */
/*     THE SOFTWARE AND ANY RELATED MATERIALS, AND AGREES TO INDEMNIFY */
/*     CALTECH AND NASA FOR ALL THIRD-PARTY CLAIMS RESULTING FROM THE */
/*     ACTIONS OF RECIPIENT IN THE USE OF THE SOFTWARE. */


/*     Include Section:  EK Segment Descriptor Parameters */

/*        eksegdsc.inc  Version 8  06-NOV-1995 (NJB) */


/*     All `base addresses' referred to below are the addresses */
/*     *preceding* the item the base applies to.  This convention */
/*     enables simplied address calculations in many cases. */

/*     Size of segment descriptor.  Note:  the include file ekcoldsc.inc */
/*     must be updated if this parameter is changed.  The parameter */
/*     CDOFF in that file should be kept equal to SDSCSZ. */


/*     Index of the segment type code: */


/*     Index of the segment's number.  This number is the segment's */
/*     index in the list of segments contained in the EK to which */
/*     the segment belongs. */


/*     Index of the DAS integer base address of the segment's integer */
/*     meta-data: */


/*     Index of the DAS character base address of the table name: */


/*     Index of the segment's column count: */


/*     Index of the segment's record count: */


/*     Index of the root page number of the record tree: */


/*     Index of the root page number of the character data page tree: */


/*     Index of the root page number of the double precision data page */
/*     tree: */


/*     Index of the root page number of the integer data page tree: */


/*     Index of the `modified' flag: */


/*     Index of the `initialized' flag: */


/*     Index of the shadowing flag: */


/*     Index of the companion file handle: */


/*     Index of the companion segment number: */


/*     The next three items are, respectively, the page numbers of the */
/*     last character, d.p., and integer data pages allocated by the */
/*     segment: */


/*     The next three items are, respectively, the page-relative */
/*     indices of the last DAS word in use in the segment's */
/*     last character, d.p., and integer data pages: */


/*     Index of the DAS character base address of the column name list: */


/*     The last descriptor element is reserved for future use.  No */
/*     parameter is defined to point to this location. */


/*     End Include Section:  EK Segment Descriptor Parameters */

/* $ Disclaimer */

/*     THIS SOFTWARE AND ANY RELATED MATERIALS WERE CREATED BY THE */
/*     CALIFORNIA INSTITUTE OF TECHNOLOGY (CALTECH) UNDER A U.S. */
/*     GOVERNMENT CONTRACT WITH THE NATIONAL AERONAUTICS AND SPACE */
/*     ADMINISTRATION (NASA). THE SOFTWARE IS TECHNOLOGY AND SOFTWARE */
/*     PUBLICLY AVAILABLE UNDER U.S. EXPORT LAWS AND IS PROVIDED "AS-IS" */
/*     TO THE RECIPIENT WITHOUT WARRANTY OF ANY KIND, INCLUDING ANY */
/*     WARRANTIES OF PERFORMANCE OR MERCHANTABILITY OR FITNESS FOR A */
/*     PARTICULAR USE OR PURPOSE (AS SET FORTH IN UNITED STATES UCC */
/*     SECTIONS 2312-2313) OR FOR ANY PURPOSE WHATSOEVER, FOR THE */
/*     SOFTWARE AND RELATED MATERIALS, HOWEVER USED. */

/*     IN NO EVENT SHALL CALTECH, ITS JET PROPULSION LABORATORY, OR NASA */
/*     BE LIABLE FOR ANY DAMAGES AND/OR COSTS, INCLUDING, BUT NOT */
/*     LIMITED TO, INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND, */
/*     INCLUDING ECONOMIC DAMAGE OR INJURY TO PROPERTY AND LOST PROFITS, */
/*     REGARDLESS OF WHETHER CALTECH, JPL, OR NASA BE ADVISED, HAVE */
/*     REASON TO KNOW, OR, IN FACT, SHALL KNOW OF THE POSSIBILITY. */

/*     RECIPIENT BEARS ALL RISK RELATING TO QUALITY AND PERFORMANCE OF */
/*     THE SOFTWARE AND ANY RELATED MATERIALS, AND AGREES TO INDEMNIFY */
/*     CALTECH AND NASA FOR ALL THIRD-PARTY CLAIMS RESULTING FROM THE */
/*     ACTIONS OF RECIPIENT IN THE USE OF THE SOFTWARE. */


/*     Include Section:  EK Table Name Size */

/*        ektnamsz.inc Version 1    17-JAN-1995 (NJB) */


/*     Size of table name, in characters. */


/*     End Include Section:  EK Table Name Size */

/* $ Disclaimer */

/*     THIS SOFTWARE AND ANY RELATED MATERIALS WERE CREATED BY THE */
/*     CALIFORNIA INSTITUTE OF TECHNOLOGY (CALTECH) UNDER A U.S. */
/*     GOVERNMENT CONTRACT WITH THE NATIONAL AERONAUTICS AND SPACE */
/*     ADMINISTRATION (NASA). THE SOFTWARE IS TECHNOLOGY AND SOFTWARE */
/*     PUBLICLY AVAILABLE UNDER U.S. EXPORT LAWS AND IS PROVIDED "AS-IS" */
/*     TO THE RECIPIENT WITHOUT WARRANTY OF ANY KIND, INCLUDING ANY */
/*     WARRANTIES OF PERFORMANCE OR MERCHANTABILITY OR FITNESS FOR A */
/*     PARTICULAR USE OR PURPOSE (AS SET FORTH IN UNITED STATES UCC */
/*     SECTIONS 2312-2313) OR FOR ANY PURPOSE WHATSOEVER, FOR THE */
/*     SOFTWARE AND RELATED MATERIALS, HOWEVER USED. */

/*     IN NO EVENT SHALL CALTECH, ITS JET PROPULSION LABORATORY, OR NASA */
/*     BE LIABLE FOR ANY DAMAGES AND/OR COSTS, INCLUDING, BUT NOT */
/*     LIMITED TO, INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND, */
/*     INCLUDING ECONOMIC DAMAGE OR INJURY TO PROPERTY AND LOST PROFITS, */
/*     REGARDLESS OF WHETHER CALTECH, JPL, OR NASA BE ADVISED, HAVE */
/*     REASON TO KNOW, OR, IN FACT, SHALL KNOW OF THE POSSIBILITY. */

/*     RECIPIENT BEARS ALL RISK RELATING TO QUALITY AND PERFORMANCE OF */
/*     THE SOFTWARE AND ANY RELATED MATERIALS, AND AGREES TO INDEMNIFY */
/*     CALTECH AND NASA FOR ALL THIRD-PARTY CLAIMS RESULTING FROM THE */
/*     ACTIONS OF RECIPIENT IN THE USE OF THE SOFTWARE. */


/*     Include Section:  EK Data Types */

/*        ektype.inc Version 1  27-DEC-1994 (NJB) */


/*     Within the EK system, data types of EK column contents are */
/*     represented by integer codes.  The codes and their meanings */
/*     are listed below. */

/*     Integer codes are also used within the DAS system to indicate */
/*     data types; the EK system makes no assumptions about compatibility */
/*     between the codes used here and those used in the DAS system. */


/*     Character type: */


/*     Double precision type: */


/*     Integer type: */


/*     `Time' type: */

/*     Within the EK system, time values are represented as ephemeris */
/*     seconds past J2000 (TDB), and double precision numbers are used */
/*     to store these values.  However, since time values require special */
/*     treatment both on input and output, and since the `TIME' column */
/*     has a special role in the EK specification and code, time values */
/*     are identified as a type distinct from double precision numbers. */


/*     End Include Section:  EK Data Types */

/* $ Brief_I/O */

/*     Variable  I/O  Description */
/*     --------  ---  -------------------------------------------------- */
/*     HANDLE     I   File handle. */
/*     TABNAM     I   Table name. */
/*     NCOLS      I   Number of columns in the segment. */
/*     CNAMES     I   Names of columns. */
/*     DECLS      I   Declarations of columns. */
/*     SEGNO      O   Segment number. */

/* $ Detailed_Input */

/*     HANDLE         the handle of an EK file that is open for writing. */

/*     TABNAM         is the name of the EK table to which the current */
/*                    segment belongs.  All segments in the EK file */
/*                    designated by HANDLE must have identical column */
/*                    attributes. TABNAM must not exceed 32 characters */
/*                    in length.  Case is not significant.  Table names */
/*                    must start with a letter and contain only */
/*                    characters from the set {A-Z,a-z,0-9,$,_}. */

/*     NCOLS          is the number of columns in a new segment. */

/*     CNAMES, */
/*     DECLS          are, respectively, and array of column names and */
/*                    their corresponding declarations:  the Ith element */
/*                    of CNAMES and the Ith element of DECLS apply to */
/*                    the Ith column in the segment. */

/*                    Column names must not exceed CNAMSZ (32) characters */
/*                    in length.  Case is not significant.  Column names */
/*                    must start with a letter and contain only */
/*                    characters from the set {A-Z,a-z,0-9,$,_}. */

/*                    The declarations are strings that contain */
/*                    `keyword=value' assignments that define the */
/*                    attributes of the columns to which they apply.  The */
/*                    column attributes that are defined by a column */
/*                    declaration are: */

/*                       DATATYPE */
/*                       SIZE */
/*                       <is the column indexed?> */
/*                       <does the column allow null values?> */

/*                    The form of a declaration is */

/*                       'DATATYPE  = <type>, */
/*                        SIZE      = <size>, */
/*                        INDEXED   = <boolean>, */
/*                        NULLS_OK  = <boolean>' */

/*                    For example, an indexed, scalar, integer column */
/*                    that allows null values would have the declaration */

/*                       'DATATYPE  = INTEGER, */
/*                        SIZE      = 1, */
/*                        INDEXED   = TRUE, */
/*                        NULLS_OK  = TRUE' */

/*                    Commas are required to separate the assignments */
/*                    within declarations; white space is optional; */
/*                    case is not significant. */

/*                    The order in which the attribute keywords are */
/*                    listed in declaration is not significant. */

/*                    Every column in a segment must be declared. */

/*                    Each column entry is effectively an array, each */
/*                    element of which has the declared data type.  The */
/*                    SIZE keyword indicates how many elements are in */
/*                    each entry of the column in whose declaration the */
/*                    keyword appears.  Note that only scalar-valued */
/*                    columns (those for which SIZE = 1) may be */
/*                    referenced in query constraints.  A size */
/*                    assignment has the syntax */

/*                       SIZE = <integer> */

/*                    or */
/*                       SIZE = VARIABLE */

/*                    The size value defaults to 1 if omitted. */

/*                    The DATATYPE keyword defines the data type of */
/*                    column entries.  The DATATYPE assignment syntax */
/*                    has any of the forms */

/*                       DATATYPE = CHARACTER*(<length>) */
/*                       DATATYPE = CHARACTER*(*) */
/*                       DATATYPE = DOUBLE PRECISION */
/*                       DATATYPE = INTEGER */
/*                       DATATYPE = TIME */

/*                    As the datatype declaration syntax suggests, */
/*                    character strings may have fixed or variable */
/*                    length.  Variable-length strings are allowed only */
/*                    in columns of size 1. */

/*                    Optionally, scalar-valued columns may be indexed. */
/*                    To create an index for a column, use the assignment */

/*                       INDEXED = TRUE */

/*                    By default, columns are not indexed. */

/*                    Optionally, any column can allow null values.  To */
/*                    indicate that a column may allow null values, use */
/*                    the assigment */

/*                       NULLS_OK = TRUE */

/*                    in the column declaration.  By default, null */
/*                    values are not allowed in column entries. */

/* $ Detailed_Output */

/*     SEGNO          is the number of the segment created by this */
/*                    routine.  Segment numbers are used as unique */
/*                    identifiers by other EK access routines. */

/* $ Parameters */

/*     None. */

/* $ Exceptions */

/*     1)  If HANDLE is invalid, the error will be diagnosed by routines */
/*         called by this routine. */

/*     2)  If TABNAM is more than TNAMSZ characters long, the error */
/*         is diagnosed by routines called by this routine. */

/*     3)  If TABNAM contains any nonprintable characters, the error */
/*         is diagnosed by routines called by this routine. */

/*     4)  If NCOLS is non-positive or greater than the maximum allowed */
/*         number MXCLSG, the error SPICE(INVALIDCOUNT) is signalled. */

/*     5)  If any column name exceeds CNAMSZ characters in length, the */
/*         error is diagnosed by routines called by this routine. */

/*     6)  If any column name contains non-printable characters, the */
/*         error is diagnosed by routines called by this routine. */

/*     7)  If a declaration cannot be understood by this routine, the */
/*         error is diagnosed by routines called by this routine. */

/*     8)  If an non-positive string length or element size is specified, */
/*         the error is diagnosed by routines called by this routine. */

/*     9)  If an I/O error occurs while reading or writing the indicated */
/*         file, the error will be diagnosed by routines called by this */
/*         routine. */

/* $ Files */

/*     See the EK Required Reading for a discussion of the EK file */
/*     format. */

/* $ Particulars */

/*     This routine operates by side effects:  it prepares an EK for */
/*     the addition of a new segment.  It is not necessary to take */
/*     any special action to `complete' a segment; segments are readable */
/*     after the completion of any record insertion, deletion, write, */
/*     or update operation. */

/* $ Examples */

/*     1)  Suppose we have an E-kernel named ORDER_DB.EK which contains */
/*         records of orders for data products.  The E-kernel has a */
/*         table called DATAORDERS that consists of the set of columns */
/*         listed below: */

/*            DATAORDERS */

/*               Column Name     Data Type */
/*               -----------     --------- */
/*               ORDER_ID        INTEGER */
/*               CUSTOMER_ID     INTEGER */
/*               LAST_NAME       CHARACTER*(*) */
/*               FIRST_NAME      CHARACTER*(*) */
/*               ORDER_DATE      TIME */
/*               COST            DOUBLE PRECISION */

/*         The order database also has a table of items that have been */
/*         ordered.  The columns of this table are shown below: */

/*            DATAITEMS */

/*               Column Name     Data Type */
/*               -----------     --------- */
/*               ITEM_ID         INTEGER */
/*               ORDER_ID        INTEGER */
/*               ITEM_NAME       CHARACTER*(*) */
/*               DESCRIPTION     CHARACTER*(*) */
/*               PRICE           DOUBLE PRECISION */


/*         We'll suppose that the file ORDER_DB.EK contains two segments, */
/*         the first containing the DATAORDERS table and the second */
/*         containing the DATAITEMS table. */

/*         Below, we show how we'd open a new EK file and start the */
/*         first of the segments described above. */


/*            C */
/*            C     Open a new EK file.  For simplicity, we will not */
/*            C     reserve any space for the comment area, so the */
/*            C     number of reserved comment characters is zero. */
/*            C     The variable IFNAME is the internal file name. */
/*            C */
/*                  NRESVC  =  0 */
/*                  IFNAME  =  'Test EK/Created 20-SEP-1995' */

/*                  CALL EKOPN ( 'ORDER_DB.EK', IFNAME, NRESVC, HANDLE ) */

/*            C */
/*            C     Set up the table and column names and declarations */
/*            C     for the DATAORDERS segment.  We'll index all of */
/*            C     the columns.  All columns are scalar, so we omit */
/*            C     the size declaration.  Only the COST column may take */
/*            C     null values. */
/*            C */
/*                  TABLE     =  'DATAORDERS' */
/*                  NCOLS     =  6 */

/*                  CNAMES(1) =  'ORDER_ID' */
/*                  CDECLS(1) =  'DATATYPE = INTEGER, INDEXED = TRUE' */

/*                  CNAMES(2) =  'CUSTOMER_ID' */
/*                  CDECLS(2) =  'DATATYPE = INTEGER, INDEXED = TRUE' */

/*                  CNAMES(3) =  'LAST_NAME' */
/*                  CDECLS(3) =  'DATATYPE = CHARACTER*(*),' // */
/*                 .             'INDEXED  = TRUE' */

/*                  CNAMES(4) =  'FIRST_NAME' */
/*                  CDECLS(4) =  'DATATYPE = CHARACTER*(*),' // */
/*                 .             'INDEXED  = TRUE' */

/*                  CNAMES(5) =  'ORDER_DATE' */
/*                  CDECLS(5) =  'DATATYPE = TIME, INDEXED  = TRUE' */

/*                  CNAMES(6) =  'COST' */
/*                  CDECLS(6) =  'DATATYPE = DOUBLE PRECISION,' // */
/*                 .             'INDEXED  = TRUE'           // */
/*                 .             'NULLS_OK = TRUE' */

/*            C */
/*            C     Start the segment. */
/*            C */
/*                  CALL EKBSEG ( HANDLE,  TABNAM,  NCOLS, */
/*                 .              CNAMES,  CDECLS,  SEGNO  ) */

/*            C */
/*            C     Add data to the segment.  No special action */
/*            C     is required to finish the segment. */
/*            C */
/*                  [Data is added via calls to EKAPPR and the */
/*                   EKACEC, EKACED, and EKACEI routines.  See any */
/*                   of these routines for examples.] */

/*            C */
/*            C     At this point, the second segment could be */
/*            C     created by an analogous process.  In fact, the */
/*            C     second segment could be created at any time; it is */
/*            C     not necessary to populate the first segment with */
/*            C     data before starting the second segment. */
/*            C */

/*            C */
/*            C     The file must be closed by a call to EKCLS. */
/*            C */
/*                  CALL EKCLS ( HANDLE ) */


/* $ Restrictions */

/*     None. */

/* $ Literature_References */

/*     None. */

/* $ Author_and_Institution */

/*     N.J. Bachman   (JPL) */

/* $ Version */

/* -    SPICELIB Version 1.1.0, 07-JUL-1996 (NJB) */

/*        Erroneous error message for invalid column names was fixed. */
/*        Previous version line was changed from "Beta" to "SPICELIB." */

/* -    SPICELIB Version 1.0.0, 06-NOV-1995 (NJB) */

/* -& */
/* $ Index_Entries */

/*     start new E-kernel segment */
/*     start new EK segment */

/* -& */
/* $ Revisions */

/* -    SPICELIB Version 1.1.0, 07-JUL-1996 (NJB) */

/*        Erroneous error message for invalid column names was fixed. */
/*        Previous version line was changed from "Beta" to "SPICELIB." */

/* -& */

/*     SPICELIB functions */


/*     Non-SPICELIB functions */


/*     Local parameters */


/*     Local variables */


/*     Saved variables */


/*     Initial values */


/*     Standard SPICE error handling. */

    if (return_()) {
	return 0;
    } else {
	chkin_("EKBSEG", (ftnlen)6);
    }

/*     Before trying to actually write anything, do every error */
/*     check we can. */

/*     Is this file handle valid--is the file open for paged write */
/*     access?  Signal an error if not. */

    zzekpgch_(handle, "WRITE", (ftnlen)5);
    if (failed_()) {
	chkout_("EKBSEG", (ftnlen)6);
	return 0;
    }

/*     Get the default identifier specification the first time through. */

    if (first) {
	ssizei_(&c__512, idspec);
	lxdfid_(idspec);
	first = FALSE_;
    }

/*     The table name must not be too long, and all of its characters */
/*     must be printable (it's ok for it to unprintable). */

    chckid_("EK table name", &c__32, tabnam, (ftnlen)13, tabnam_len);
    if (failed_()) {
	chkout_("EKBSEG", (ftnlen)6);
	return 0;
    }

/*     Make sure the table name satisfies all of our restrictions on */
/*     allowed characters. */

    lxidnt_(idspec, tabnam, &c__1, &idend, &nchars, tabnam_len);
    if (nchars == 0 || nchars < lastnb_(tabnam, tabnam_len)) {
	setmsg_("Table name <#> violates syntax rules.", (ftnlen)37);
	errch_("#", tabnam, (ftnlen)1, tabnam_len);
	sigerr_("SPICE(INVALIDNAME)", (ftnlen)18);
	chkout_("EKBSEG", (ftnlen)6);
	return 0;
    }

/*     Check out NCOLS. */

    if (*ncols < 1 || *ncols > 100) {
	setmsg_("Number of columns must be in range 1:#, was #.", (ftnlen)46);
	errint_("#", &c__100, (ftnlen)1);
	errint_("#", ncols, (ftnlen)1);
	sigerr_("SPICE(INVALIDCOUNT)", (ftnlen)19);
	chkout_("EKBSEG", (ftnlen)6);
	return 0;
    }

/*     Check the column names for length and printability. */

    i__1 = *ncols;
    for (i__ = 1; i__ <= i__1; ++i__) {
	chckid_("EK column name", &c__32, cnames + (i__ - 1) * cnames_len, (
		ftnlen)14, cnames_len);
	if (failed_()) {
	    chkout_("EKBSEG", (ftnlen)6);
	    return 0;
	}

/*        Make sure each column name satisfies all of our restrictions on */
/*        allowed characters. */

	lxidnt_(idspec, cnames + (i__ - 1) * cnames_len, &c__1, &idend, &
		nchars, cnames_len);
	if (nchars == 0 || nchars < lastnb_(cnames + (i__ - 1) * cnames_len, 
		cnames_len)) {
	    setmsg_("Column name <#> violates syntax rules.", (ftnlen)38);
	    errch_("#", cnames + (i__ - 1) * cnames_len, (ftnlen)1, 
		    cnames_len);
	    sigerr_("SPICE(INVALIDNAME)", (ftnlen)18);
	    chkout_("EKBSEG", (ftnlen)6);
	    return 0;
	}
    }

/*     Parse the column declarations before proceeding. */

    i__1 = *ncols;
    for (i__ = 1; i__ <= i__1; ++i__) {

/*        Parse the declaration of the Ith column.  The descriptor is */
/*        returned with all elements other than pointers initialized. */

	zzekpdec_(decls + (i__ - 1) * decls_len, &cdscrs[(i__2 = i__ * 11 - 
		11) < 1100 && 0 <= i__2 ? i__2 : s_rnge("cdscrs", i__2, "ekb"
		"seg_", (ftnlen)549)], decls_len);
	if (failed_()) {
	    chkout_("EKBSEG", (ftnlen)6);
	    return 0;
	}
    }

/*     Determine the segment type. */

    stype = zzekstyp_(ncols, cdscrs);

/*     Create the segment metadata according to the segment's type. */

    if (stype == 1) {
	zzekbs01_(handle, tabnam, ncols, cnames, cdscrs, segno, tabnam_len, 
		cnames_len);
    } else if (stype == 2) {
	zzekbs02_(handle, tabnam, ncols, cnames, cdscrs, segno, tabnam_len, 
		cnames_len);
    } else {
	setmsg_("Segment type # is not currently supported.", (ftnlen)42);
	errint_("#", &stype, (ftnlen)1);
	sigerr_("SPICE(BUG)", (ftnlen)10);
	chkout_("EKBSEG", (ftnlen)6);
	return 0;
    }
    chkout_("EKBSEG", (ftnlen)6);
    return 0;
} /* ekbseg_ */

