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Writes a user-defined file label. Syntax | |
I16V UDS I16V I16V
FWRITELABEL(filenum,buffer,length,labelid);
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Parameters | |
- filenum
16-bit signed integer by value (required) Passes the file number of the file to be labeled. - buffer
user-defined structure (required) Passes the label to be written. If the file is a labeled magnetic tape file, this label must be 40 halfwords in length. - length
16-bit signed integer by value (optional) Passes the number of halfwords or bytes to be written. A positive value is in halfwords; a negative value is in bytes. - labelid
16-bit signed integer by value (optional) Passes the number of the label to be written. The first label is zero. This parameter is ignored for labeled tapes. The next sequential tape label is written. The default is zero.
Operation Notes | |
Once a disk file is opened, it is possible to read from or write to user-defined labels regardless of the access to the rest of the file. Condition Codes | |
- CCE
Request granted. - CCG
Request denied. The calling process attempted to write a label beyond the limit specified in the FOPEN/HPFOPEN intrinsic when the file was created. - CCL
Request denied. An error occurred.
Refer to this intrinsic in the MPE/iX Intrinsics Reference Manual (32650-90028) for other codes pertaining to KSAM files. |
