| daswrc |
|
Table of contents
Procedure
DASWRC ( DAS, write record, character )
ENTRY DASWRC ( HANDLE, RECNO, RECC )
Abstract
Write DAS character physical records.
Required_Reading
DAS
Keywords
ASSIGNMENT
DAS
FILES
Declarations
INTEGER HANDLE
INTEGER RECNO
CHARACTER*(*) RECC
Brief_I/O
VARIABLE I/O DESCRIPTION
-------- --- --------------------------------------------------
HANDLE I Handle of DAS file.
RECNO I Record number.
RECC I Character data to be written to record.
BUFSZC P Number of records in the character record buffer.
NWC P Number of characters in a single DAS char. record.
Detailed_Input
HANDLE is the handle of a DAS file opened for writing.
RECNO is the number of a record in a DAS file.
RECC is a string of length NWC. The contents of this
string are to be written to the physical file
record having number RECNO.
Detailed_Output
None. See $Particulars for a description of the action of this
routine.
Parameters
NWC is the number of characters in a single DAS record
containing characters.
BUFSZC is the number of records in the character record
buffer.
Exceptions
1) If the input file handle is invalid, an error is signaled by a
routine in the call tree of this routine. The DAS file
designated by HANDLE will not be modified.
2) If a write operation attempted by this routine fails, an error
is signaled by a routine in the call tree of this routine. The
status of the DAS file written to is uncertain in this case.
Note that the file written to may be different than the file
designated by HANDLE if multiple DAS files are open for
writing.
Files
See the description of the argument HANDLE in $Detailed_Input.
Particulars
Routines outside of SPICELIB will normally have no need to call
this routine.
This routine can be used to write to only DAS files that are open
for writing. Records written via this routine will always be
buffered immediately, but may not be written to the file until
they are cleared from the character buffer to make room for other
records, or until they are explicitly forced to to be written via
a call to DASWBR. In any case, at the moment this routine
returns, the data supplied on input may be read back by DASRRC
or updated by DASURC.
Closing a DAS file via DASCLS forces any remaining updated data
records buffered by this routine to be written to the file.
Examples
1) Write a string of NWC characters to the 9th record in a DAS
file designated by HANDLE.
CHARACTER*(NWC) RECC
.
.
.
RECC = 'This example string is blank-padded on the ' //
. 'right. All of the trailing blanks will be ' //
. 'written to the DAS file by the following call.'
CALL DASWRC ( HANDLE, 9, RECC )
Restrictions
None.
Literature_References
None.
Author_and_Institution
N.J. Bachman (JPL)
J. Diaz del Rio (ODC Space)
K.R. Gehringer (JPL)
B.V. Semenov (JPL)
W.L. Taber (JPL)
Version
SPICELIB Version 2.0.1, 22-FEB-2021 (JDR)
Edited the header to comply with NAIF standard.
SPICELIB Version 2.0.0, 30-JUL-2014 (NJB)
Upgraded to support handle manager integration.
SPICELIB Version 1.0.3, 10-FEB-2014 (BVS)
Added description of NWC to the $Parameters and $Brief_I/O
sections of the header.
SPICELIB Version 1.0.2, 03-NOV-1995 (NJB)
Removed weird spaces from ENTRY statement.
SPICELIB Version 1.0.1, 28-OCT-1993 (KRG)
Removed references to specific DAS file open routines in the
$Detailed_Input section of the header. This was done in order
to minimize documentation changes if the DAS open routines ever
change.
SPICELIB Version 1.0.0, 30-JUN-1992 (NJB) (WLT)
|
Fri Dec 31 18:36:12 2021