SVR5 and SCO OpenServer 5
M_CTL, M_PCCTL --
send information to a particular module or type of module
M_CTL and M_PCCTL are generated by modules
that wish to send information to a particular module
or type of module.
are typically used for intermodule communication,
as when adjacent STREAMS protocol modules
negotiate the terms of their interface.
An M_CTL message cannot be generated by a user-level process
and is always discarded if passed to the Stream head.
M_CTL is ordinary (non-priority);
M_PCCTL is priority.
1, 2, 3, 4, 5, 5mp, 6, 6mp, 7, 7mp, 7.1, 7.1mp, 8, 8mp
1, 2, 2mp, 3, 3mp, 4, 4mp, 5, 5mp
M_PCCTL is not available in ODDI.
19 June 2005
© 2005 The SCO Group, Inc. All rights reserved.
OpenServer 6 and UnixWare (SVR5) HDK - June 2005