The following table provides a brief summary of deviceparameters for socket devices. For more information, refer to the sections describing the OPEN, USE, and CLOSE commands.
|
Error Processing Deviceparameters |
||
|
DEVICEPARAMETER |
COMMAND |
COMMENT |
|
EXCEPTION=expr |
O/U/C |
Controls device-specific error handling. |
|
IOERROR=expr |
O/U |
If $LENGTH(expr)&("Tt"[$EXTRACT(expr)) then Error Trapping is enabled; otherwise the logic must rely on $DEVICE to recognize the handle errors. |
|
Format Deviceparameters |
||
|
DEVICEPARAMETER |
COMMAND |
COMMENT |
|
[NO]DELIMITER=expr |
O/U |
Specifies socket delimiter(s). |
|
[NO]FILTER=expr |
U |
Specifies character filtering for socket output. |
|
LENGTH=expr, or ZLENGTH=expr |
U |
Sets virtual page length for socket device. |
|
IPCHSET=expr |
O/U/C |
Specifies input character set |
|
OPCHSET=expr |
O/U/C |
Specifies output character set |
|
[NO]WRAP, or Z[NO]WRAP |
O/U |
Controls handling of records longer than the device width. |
|
[Z]WIDTH=expr |
U |
Controls the maximum length of an output message. |
|
ZBFSIZE=intexpr |
O/U |
Specifies receive buffer size. |
|
Z[NO]FF=expr |
O/U |
Controls whether and what characters to send in response to a WRITE #. |
|
ZIBFSIZE=intexpr |
O |
Specifies internal read buffer size to minimize calls to the underlying protocol stack. |
|
Socket Establishment/Disconnect Deviceparameters |
||
|
DEVICEPARAMETER |
COMMAND |
COMMENT |
|
ATTACH=expr |
O/U |
Attaches the socket specified by expr to the device |
|
CONNECT=expr |
O/U |
expr specifies protocol, and protocol specific information |
|
DETACH=expr |
U |
Detaches the socket specified by expr from the device |
|
SOCKET=expr |
U/C |
Makes the socket specified by expr the current socket |
|
Z[NO]DELAY |
O/U |
Controls buffering of data packets by the network software according to the Nagle algorithm (ZDELAY) or disables it (NOZDELAY). ZDELAY is the default |
|
ZLISTEN=expr |
O/U |
Similar to CONNECT but binds the socket for subsequent /LISTEN and /WAIT |