SVR5 and SCO OpenServer 5

M_SETOPTS(D7str)

M_SETOPTS, M_PCSETOPTS -- alter characteristics of the Stream head

Description

M_SETOPTS and M_PCSETOPTS alter some characteristics of the Stream head. They are generated by any downstream module and are interpreted by the Stream head. The data buffer of the message is a stroptions(D4str) structure.

Message type

M_STROPTS is ordinary (non-priority); M_PCSTROPTS is priority.

Version applicability

ddi: 1, 2, 3, 4, 5, 5mp, 6, 6mp, 7, 7mp, 7.1, 7.1mp, 8, 8mp
oddi: 1, 2, 2mp, 3, 3mp, 4, 4mp, 5, 5mp

Differences between versions

M_SETOPTS is supported in all DDI and ODDI versions, but note differences in the stroptions(D4str) structure and supported options.

References

streamio, stroptions(D4str)