DSM/Tape Catalog Management Programming Manual

Common Definitions

DSM/Tape Catalog Management Programming Manual—520481-003

4-72

Buffer Length Values

Table 4-5 lists buffer length values defined for the programmatic interface to DSM/TC.

Null, Reset, and Wild-Card Values

The RESET option is supported by various ALTER commands. Its function is to return

an option to its subsystem-defined default value. Any command that uses the RESET

option explicitly states so, as well as listing what the subsystem-defined default value

is. To use the RESET option, all bytes of a field must contain the RESET value.

The RESET value is defined to be repeating bytes of %376 (#254) when the data type

is noncharacter. For character data types, the ASCII character exclamation-point (!) is

used. Values for additional data types are provided for your convenience.

Table 4-6 lists null, reset, and wild-card values defined for the programmatic interface

to DSM/TC.

Table 4-5. Buffer Length Definitions

CONSTANT VALUE

ZMCS-VAL-MINBUFLEN 256

ZMCS-VAL-MINBUFLEN-W 128

ZMCS-VAL-BUFLEN 2048

ZMCS-VAL-BUFLEN-W 1024

ZMCS-VAL-MAXBUFLEN 8192

ZMCS-VAL-MAXBUFLEN-W 4096

Table 4-6. Null, Reset, and Wild-Card Values

CONSTANT VALUE

ZMCS-VAL-RESETCHAR "!"

ZMCS-VAL-RESETBYTE 254 TYPE BINARY 16

ZMCS-VAL-RESETWORD -258 TYPE BINARY 16

ZMCS-VAL-RESETDBLWORD -16843010 TYPE BINARY 32

ZMCS-VAL-RESETQUADWORD -72340172838076674 TYPE BINARY 64

ZMCS-VAL-RESETENUM -258 TYPE BINARY 16

ZMCS-VAL-RESETBOOLEAN -258 TYPE BINARY 16

ZMCS -VAL-WILDCHAR "*"