SVR5 and SCO OpenServer 5

M_DELAY(D7str)

M_DELAY -- request realtime delay on output

Description

Sent to a media driver to request a realtime delay on output. The data buffer associated with this message type is expected to contain an integer to indicate the number of machine ticks of delay desired. M_DELAY messages are typically used to prevent transmitted data from exceeding the buffering capacity of slower terminals.

The message format is not defined by STREAMS, and its use is developer-dependent. Not all media drivers may understand this message. This message can be considered a special case of an M_CTL message. An M_DELAY message cannot be generated by a user-level process and is always discarded if passed to the Stream head.

Message type

Ordinary (non-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

References

M_CTL(D7str), streamio