Incremental ISAM close for files opened by Resource IFIL open.
Short Name
CLRFIL()
Type
ISAM function
Declaration
COUNT CloseRFile(FILNO filno)Description
In V12 the file number typedef was formally changed from COUNT, a two-byte value to FILNO, a four-byte value. Refer to this link for compatibility details. Four Byte File Numbering
CloseRFile() closes the data file filno, and all associated indexes, opened by OpenFileWithResource().
Return
| Value | Symbolic Constant | Explanation |
|---|---|---|
| 0 | NO_ERROR | Successful close of ISAM files. |
| 22 | FNUM_ERR | File number out of range. |
| 24 | FCLS_ERR | Could not close file number isam_fil. |
| 401 | RNON_ERR | Resources not enabled. |
| 408 | RNOT_ERR | IFIL structure not stored in data file resource. |
| 438 | DZRO_ERR | File definition block is empty. |
See FairCom DB Error Codes for a complete listing of valid FairCom DB error values.
Example
FILNO myfile;
COUNT retval;
if (retval = InitISAM(6,7,4))
printf("\nCould not close files. Error %d.", retval);
else {
if (myfile = OpenFileWithResource(-1, "sample.dat", 0))
printf("\nCould not open files.");
else if (CloseRFile(myfile))
printf("\nCould not close files.");
if (CloseISAM())
printf("\nCould not close ISAM.");
}See also
InitISAM, CreateIFile, OpenFileWithResource