/* $Procedure ZZEKRD03 ( EK, read class 3 column entry elements ) */
/* Subroutine */ int zzekrd03_(integer *handle, integer *segdsc, integer *
coldsc, integer *recptr, integer *cvlen, char *cval, logical *isnull,
ftnlen cval_len)
{
/* System generated locals */
integer i__1, i__2;
/* Builtin functions */
integer i_len(char *, ftnlen);
/* Subroutine */ int s_copy(char *, char *, ftnlen, ftnlen);
/* Local variables */
integer nrec, bpos;
extern integer zzekrp2n_(integer *, integer *, integer *);
integer epos, unit;
extern /* Subroutine */ int zzekcnam_(integer *, integer *, char *,
ftnlen), zzekpgbs_(integer *, integer *, integer *), zzekpgpg_(
integer *, integer *, integer *, integer *);
integer b, e, l, n, p, pbase, avail;
extern /* Subroutine */ int chkin_(char *, ftnlen), errch_(char *, char *,
ftnlen, ftnlen);
integer recno, ncols;
extern /* Subroutine */ int dasrdc_(integer *, integer *, integer *,
integer *, integer *, char *, ftnlen), dasrdi_(integer *, integer
*, integer *, integer *);
char column[32];
integer colidx, datptr, relptr, ptrloc;
extern /* Subroutine */ int dashlu_(integer *, integer *), setmsg_(char *,
ftnlen), errint_(char *, integer *, ftnlen), errfnm_(char *,
integer *, ftnlen), sigerr_(char *, ftnlen), chkout_(char *,
ftnlen), zzekgei_(integer *, integer *, integer *);
/* $ Abstract */
/* Read a column entry from a specified record in a class 3 column. */
/* Class 3 columns contain scalar character values. */
/* $ 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 */
/* PRIVATE */
/* $ 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 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 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 Handle attached to EK file. */
/* SEGDSC I Segment descriptor. */
/* COLDSC I Column descriptor. */
/* RECPTR I Record pointer. */
/* CVLEN O Length of returned character value. */
/* CVAL O Character value in column entry. */
/* ISNULL O Flag indicating whether column entry is null. */
/* $ Detailed_Input */
/* HANDLE is an EK file handle. */
/* SEGDSC is the descriptor of the segment from which data is */
/* to be read. */
/* COLDSC is the descriptor of the column from which data is */
/* to be read. */
/* RECPTR is a pointer to the record containing the column */
/* entry to be written. */
/* $ Detailed_Output */
/* CVLEN is the length of the returned string value. This */
/* is the index of the last non-blank character of */
/* the string. This definition applies to both fixed- */
/* and variable-length strings. */
/* CVLEN is set to 1 if the column entry is null. */
/* CVAL is the value read from the specified column entry. */
/* If CVAL has insufficient length to hold the */
/* returned string value, the output value is */
/* truncated on the right. Entries that are shorter */
/* than the string length of CVAL are padded with */
/* trailing blanks. */
/* ISNULL is a logical flag indicating whether the entry is */
/* null. */
/* $ Parameters */
/* None. */
/* $ Exceptions */
/* 1) If HANDLE is invalid, the error will be diagnosed by routines */
/* called by this routine. */
/* 2) If the specified column entry has not been initialized, the */
/* error SPICE(UNINITIALIZED) is signaled. */
/* 3) If the ordinal position of the column specified by COLDSC */
/* is out of range, the error SPICE(INVALIDINDEX) is signaled. */
/* 4) If the output string CVAL is too short to accommodate the */
/* returned string value, the output value is truncated on the */
/* right. No error is signaled. */
/* 5) If an I/O error occurs while reading 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 is a utility for reading data from class 3 columns. */
/* $ Examples */
/* See EKRCEC. */
/* $ Restrictions */
/* None. */
/* $ Literature_References */
/* None. */
/* $ Author_and_Institution */
/* N.J. Bachman (JPL) */
/* $ Version */
/* - SPICELIB Version 1.3.0, 31-MAY-2010 (NJB) */
/* Bug fix: call to DASRDI was overwriting local memory. This */
/* problem did not affect operation of the routine except on */
/* the Mac/Intel/OSX/ifort/32-bit platform, on which it caused */
/* a segmentation fault when this routine was compiled with */
/* default optimization. */
/* - SPICELIB Version 1.2.0, 23-JUL-1999 (NJB) */
/* Error check for string truncation on output was removed. */
/* This error check interfered with the use of this routine */
/* (via a call to ZZEKRSC) within ZZEKJSRT, which relies on */
/* being able to read into a buffer initial substrings of scalar */
/* data. */
/* - SPICELIB Version 1.1.0, 28-JUL-1997 (NJB) */
/* Error check for string truncation on output was added. */
/* SHORT error message SPICE(UNINITIALIZEDVALUE) was shortened */
/* to SPICE(UNINITIALIZED). Error messages were enhanced so */
/* as to use column names rather than indices. Miscellaneous */
/* header fixes were made. */
/* - SPICELIB Version 1.0.0, 18-OCT-1995 (NJB) */
/* -& */
/* $ Revisions */
/* - SPICELIB Version 1.2.0, 23-JUL-1999 (NJB) */
/* Error check for string truncation on output was removed. */
/* This error check interfered with the use of this routine */
/* (via a call to ZZEKRSC) within ZZEKJSRT, which relies on */
/* being able to read into a buffer initial substrings of scalar */
/* data. */
/* - SPICELIB Version 1.1.0, 25-JUL-1997 (NJB) */
/* Error check for string truncation on output was added. */
/* SHORT error message SPICE(UNINITIALIZEDVALUE) was shortened */
/* to SPICE(UNINITIALIZED), since the previous string exceeded */
/* the maximum allowed length for the short error message. */
/* Error messages were enhanced so as to use column names rather */
/* than indices. */
/* -& */
/* Non-SPICELIB functions */
/* Local variables */
/* Use discovery check-in. */
/* Make sure the column exists. */
ncols = segdsc[4];
colidx = coldsc[8];
if (colidx < 1 || colidx > ncols) {
recno = zzekrp2n_(handle, &segdsc[1], recptr);
dashlu_(handle, &unit);
chkin_("ZZEKRD03", (ftnlen)8);
setmsg_("Column index = #; valid range is 1:#.SEGNO = #; RECNO = #; "
"EK = #", (ftnlen)65);
errint_("#", &colidx, (ftnlen)1);
errint_("#", &nrec, (ftnlen)1);
errint_("#", &segdsc[1], (ftnlen)1);
errint_("#", &recno, (ftnlen)1);
errfnm_("#", &unit, (ftnlen)1);
sigerr_("SPICE(INVALIDINDEX)", (ftnlen)19);
chkout_("ZZEKRD03", (ftnlen)8);
return 0;
}
/* Compute the data pointer location, and read both the pointer */
/* and the stored string size. */
ptrloc = *recptr + 2 + colidx;
dasrdi_(handle, &ptrloc, &ptrloc, &datptr);
if (datptr > 0) {
/* Read the value. This is slightly more complicated than */
/* the numeric cases, because the value may be spread across */
/* multiple pages. Also, we must not write past the end of the */
/* output string. */
/* We'll need the number of the page at which the first character */
/* of the string is stored. This page contains at least one */
/* character of the data value. */
zzekgei_(handle, &datptr, cvlen);
/* Set the data pointer to the start of the string data, skipping */
/* over the encoded string length. */
datptr += 5;
/* Computing MIN */
i__1 = *cvlen, i__2 = i_len(cval, cval_len);
n = min(i__1,i__2);
/* Read the available data from the page under consideration. */
zzekpgpg_(&c__1, &datptr, &p, &pbase);
relptr = datptr - pbase;
/* Computing MIN */
i__1 = n, i__2 = 1014 - relptr + 1;
avail = min(i__1,i__2);
b = datptr;
e = datptr + avail - 1;
bpos = 1;
epos = avail;
l = epos - bpos + 1;
dasrdc_(handle, &b, &e, &bpos, &epos, cval, cval_len);
n -= l;
while(n > 0) {
/* Read the forward page pointer from the current page; find */
/* the base address of the referenced page. */
i__1 = pbase + 1015;
zzekgei_(handle, &i__1, &p);
zzekpgbs_(&c__1, &p, &pbase);
avail = min(n,1014);
b = pbase + 1;
e = pbase + avail;
bpos = epos + 1;
epos += avail;
dasrdc_(handle, &b, &e, &bpos, &epos, cval, cval_len);
n -= avail;
bpos = epos + 1;
}
/* Blank-pad CVAL if required. */
if (i_len(cval, cval_len) > epos) {
i__1 = epos;
s_copy(cval + i__1, " ", cval_len - i__1, (ftnlen)1);
}
*isnull = FALSE_;
} else if (datptr == -2) {
/* The value is null. */
*isnull = TRUE_;
*cvlen = 1;
} else if (datptr == -1 || datptr == -3) {
/* The data value is absent. This is an error. */
recno = zzekrp2n_(handle, &segdsc[1], recptr);
dashlu_(handle, &unit);
zzekcnam_(handle, coldsc, column, (ftnlen)32);
chkin_("ZZEKRD03", (ftnlen)8);
setmsg_("Attempted to read uninitialized column entry. SEGNO = #; C"
"OLUMN = #; RECNO = #; EK = #", (ftnlen)87);
errint_("#", &segdsc[1], (ftnlen)1);
errch_("#", column, (ftnlen)1, (ftnlen)32);
errint_("#", &recno, (ftnlen)1);
errfnm_("#", &unit, (ftnlen)1);
sigerr_("SPICE(UNINITIALIZED)", (ftnlen)20);
chkout_("ZZEKRD03", (ftnlen)8);
return 0;
} else {
/* The data pointer is corrupted. */
recno = zzekrp2n_(handle, &segdsc[1], recptr);
dashlu_(handle, &unit);
zzekcnam_(handle, coldsc, column, (ftnlen)32);
chkin_("ZZEKRD03", (ftnlen)8);
setmsg_("Data pointer is corrupted. SEGNO = #; COLUMN = #; RECNO = "
"#; EK = #", (ftnlen)68);
errint_("#", &segdsc[1], (ftnlen)1);
errch_("#", column, (ftnlen)1, (ftnlen)32);
errint_("#", &recno, (ftnlen)1);
errfnm_("#", &unit, (ftnlen)1);
sigerr_("SPICE(BUG)", (ftnlen)10);
chkout_("ZZEKRD03", (ftnlen)8);
return 0;
}
return 0;
} /* zzekrd03_ */
/* $Procedure ZZEKCDSC ( Private: EK, return column descriptor ) */
/* Subroutine */ int zzekcdsc_(integer *handle, integer *segdsc, char *column,
integer *coldsc, ftnlen column_len)
{
/* System generated locals */
integer i__1, i__2;
/* Local variables */
integer unit, i__;
char cname[32];
integer mbase;
extern /* Subroutine */ int chkin_(char *, ftnlen), errch_(char *, char *,
ftnlen, ftnlen);
logical found;
integer ncols;
extern logical eqstr_(char *, char *, ftnlen, ftnlen);
integer dscbas;
extern /* Subroutine */ int dasrdc_(integer *, integer *, integer *,
integer *, integer *, char *, ftnlen);
integer nambas;
extern /* Subroutine */ int dasrdi_(integer *, integer *, integer *,
integer *), dashlu_(integer *, integer *), setmsg_(char *, ftnlen)
, errint_(char *, integer *, ftnlen), errfnm_(char *, integer *,
ftnlen), sigerr_(char *, ftnlen), chkout_(char *, ftnlen);
/* $ Abstract */
/* SPICE Private routine intended solely for the support of SPICE */
/* routines. Users should not call this routine directly due */
/* to the volatile nature of this routine. */
/* Look up the column descriptor for a column of a given name */
/* in a specified segment. */
/* $ 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 */
/* PRIVATE */
/* $ 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 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 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 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 */
/* $ Brief_I/O */
/* Variable I/O Description */
/* -------- --- -------------------------------------------------- */
/* HANDLE I Handle attached to an EK file. */
/* SEGDSC I Segment descriptor. */
/* COLUMN I Name of column. */
/* COLDSC O Descriptor for specified column. */
/* $ Detailed_Input */
/* HANDLE is an EK file handle for the file containing the */
/* column of interest. The EK may be open for read */
/* or write access. */
/* SEGDSC is the descriptor of the segment containing the */
/* column for which a descriptor is desired. */
/* COLUMN is the name of the column whose descriptor is */
/* desired. Case and white space are not significant. */
/* $ Detailed_Output */
/* COLDSC is the descriptor of the column belonging to the */
/* specified file and segment and having name COLUMN. */
/* See the include file ekcoldsc.inc for details */
/* regarding the structure of EK column descriptors. */
/* $ Parameters */
/* None. */
/* $ Exceptions */
/* 1) If the input column name does not match any column in the */
/* designated segment, the error SPICE(BUG) is signalled. It */
/* is the caller's responsibility to call this routine with */
/* valid input arguments. */
/* $ Files */
/* None. */
/* $ Particulars */
/* This routine exists for the sole purpose of centralizing code */
/* used to perform column descriptor look-ups. */
/* $ Examples */
/* See the EKACEx routines. */
/* $ Restrictions */
/* None. */
/* $ Literature_References */
/* None. */
/* $ Author_and_Institution */
/* N.J. Bachman (JPL) */
/* $ Version */
/* - Beta Version 1.0.0, 27-SEP-1995 (NJB) */
/* -& */
/* SPICELIB functions */
/* Local variables */
/* Use discovery check-in. */
/* Get the segment's integer metadata's base address. */
mbase = segdsc[2];
/* Get the number of columns. */
ncols = segdsc[4];
/* Search linearly through the column descriptors, looking for */
/* a column name match. It's an error if we don't find the input */
/* name. */
found = FALSE_;
i__ = 1;
while(i__ <= ncols && ! found) {
dscbas = mbase + 24 + (i__ - 1) * 11;
/* Get the character base address of the column name from the */
/* current descriptor. */
i__1 = dscbas + 1;
i__2 = dscbas + 11;
dasrdi_(handle, &i__1, &i__2, coldsc);
nambas = coldsc[4];
/* Look up the name and compare. */
i__1 = nambas + 1;
i__2 = nambas + 32;
dasrdc_(handle, &i__1, &i__2, &c__1, &c__32, cname, (ftnlen)32);
if (eqstr_(cname, column, (ftnlen)32, column_len)) {
found = TRUE_;
} else {
++i__;
}
}
if (! found) {
dashlu_(handle, &unit);
chkin_("ZZEKCDSC", (ftnlen)8);
setmsg_("Descriptor for column # was not found. Segment base = #; fi"
"le = #.", (ftnlen)66);
errch_("#", column, (ftnlen)1, column_len);
errint_("#", &mbase, (ftnlen)1);
errfnm_("#", &unit, (ftnlen)1);
sigerr_("SPICE(BUG)", (ftnlen)10);
chkout_("ZZEKCDSC", (ftnlen)8);
return 0;
}
return 0;
} /* zzekcdsc_ */
/* $Procedure ZZEKRD08 ( EK, read class 8 column entry ) */
/* Subroutine */ int zzekrd08_(integer *handle, integer *segdsc, integer *
coldsc, integer *recptr, doublereal *dval, logical *isnull)
{
/* System generated locals */
integer i__1, i__2;
/* Local variables */
integer mdat[2], nrec;
extern integer zzekrp2n_(integer *, integer *, integer *);
integer unit;
char cflag[1];
integer q, r__;
extern /* Subroutine */ int chkin_(char *, ftnlen);
integer recno, ncols, addrss, colidx, datbas, metloc, nflbas, offset;
logical nullok;
extern /* Subroutine */ int dashlu_(integer *, integer *), setmsg_(char *,
ftnlen), errint_(char *, integer *, ftnlen), sigerr_(char *,
ftnlen), chkout_(char *, ftnlen), dasrdi_(integer *, integer *,
integer *, integer *), dasrdc_(integer *, integer *, integer *,
integer *, integer *, char *, ftnlen), dasrdd_(integer *, integer
*, integer *, doublereal *);
/* $ Abstract */
/* Read a column entry from a specified record in a class 8 column. */
/* Class 8 columns contain fixed-count, scalar, double precision */
/* values. */
/* $ 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 */
/* PRIVATE */
/* $ 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 Class 8 Parameters */
/* ekclas08.inc Version 1 07-NOV-1995 (NJB) */
/* The following parameters give the offsets of items in the */
/* class 8 integer metadata array. */
/* Data array base address: */
/* Null flag array base address: */
/* Size of class 8 metadata array: */
/* End Include Section: EK Column Class 8 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 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 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 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 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 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 Handle attached to EK file. */
/* SEGDSC I Segment descriptor. */
/* COLDSC I Column descriptor. */
/* RECPTR I Record pointer. */
/* DVAL O Double precision value in column entry. */
/* ISNULL O Flag indicating whether column entry is null. */
/* $ Detailed_Input */
/* HANDLE is an EK file handle. */
/* SEGDSC is the descriptor of the segment from which data is */
/* to be read. */
/* COLDSC is the descriptor of the column from which data is */
/* to be read. */
/* RECPTR is a pointer to the record containing the column */
/* entry to be written. For class 8 columns, record */
/* pointers are identical to record numbers. */
/* $ Detailed_Output */
/* DVAL is the value read from the specified column entry. */
/* ISNULL is a logical flag indicating whether the entry is */
/* null. */
/* $ Parameters */
/* None. */
/* $ Exceptions */
/* 1) If HANDLE is invalid, the error will be diagnosed by routines */
/* called by this routine. */
/* 2) If the ordinal position of the column specified by COLDSC */
/* is out of range, the error SPICE(INVALIDINDEX) is signalled. */
/* 3) If an I/O error occurs while reading 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 is a utility for reading data from class 8 columns. */
/* $ Examples */
/* See EKRCED. */
/* $ Restrictions */
/* None. */
/* $ Literature_References */
/* None. */
/* $ Author_and_Institution */
/* N.J. Bachman (JPL) */
/* $ Version */
/* - Beta Version 1.0.0, 09-NOV-1995 (NJB) */
/* -& */
/* Non-SPICELIB functions */
/* Local variables */
/* Use discovery check-in. */
/* Make sure the column exists. */
ncols = segdsc[4];
colidx = coldsc[8];
metloc = coldsc[9];
nullok = coldsc[7] == 1;
if (colidx < 1 || colidx > ncols) {
recno = zzekrp2n_(handle, &segdsc[1], recptr);
dashlu_(handle, &unit);
chkin_("ZZEKRD08", (ftnlen)8);
setmsg_("Column index = #; valid range is 1:#.", (ftnlen)37);
errint_("#", &colidx, (ftnlen)1);
errint_("#", &nrec, (ftnlen)1);
sigerr_("SPICE(INVALIDINDEX)", (ftnlen)19);
chkout_("ZZEKRD08", (ftnlen)8);
return 0;
}
/* Read the metadata block. There are two items in the block: */
/* 1) The base address of the first page of the data */
/* 2) The base address of the null flag array, if nulls are */
/* permitted. */
i__1 = metloc + 1;
i__2 = metloc + 2;
dasrdi_(handle, &i__1, &i__2, mdat);
datbas = mdat[0];
nflbas = mdat[1];
/* If null values are permitted, the first step is to get */
/* the null flag for the value of interest. Compute the */
/* address of this flag. */
/* There are CPSIZE null flags per page, and each page has size */
/* PGSIZC. The null flags start at the beginning of the page. */
if (nullok) {
q = (*recptr - 1) / 1014;
r__ = *recptr - q * 1014;
offset = r__ + (q << 10);
addrss = nflbas + offset;
dasrdc_(handle, &addrss, &addrss, &c__1, &c__1, cflag, (ftnlen)1);
*isnull = *(unsigned char *)cflag == 'T';
if (*isnull) {
return 0;
}
}
/* If we're still here, we'll read the data value. */
*isnull = FALSE_;
/* The address calculation for the value is analogous to that */
/* for the null flag. */
q = (*recptr - 1) / 126;
r__ = *recptr - q * 126;
offset = r__ + (q << 7);
addrss = datbas + offset;
dasrdd_(handle, &addrss, &addrss, dval);
return 0;
} /* zzekrd08_ */
