Subsystem Control Point (SCP) Management Programming Manual

Communicating With an SCP Process
Subsystem Control Point (SCP) Management Programming Manual—520619-001
2-9
Starting an SCP Process Using the
PROCESS_CREATE_ Procedure
name-option
is set to 1 to indicate that the process will be named and that the name follows in
process-name.
process-name:len
is a string containing the name assigned to the SCP process. The length of the string
follows the colon. This parameter can be used in the subsequent call to the
FILE_OPEN_.
hometerm:len
is a string containing the name of the home terminal for the SCP process. The length
of the string follows the colon.
mem-pages
should not be specified.
create-options
determines whether the SCP process is created at a high or low PIN. For details and
important considerations, see the PROCESS_CREATE_ procedure description in
the Guardian Procedure Calls Reference Manual. The SCP program has the
HIGHPIN object-file attribute set to OFF, so processes derived from it run at
a low PIN regardless of the value you specify for the create-options
parameter. For information on setting the HIGHPIN SCP object-file attribute, see
Creating a High-PIN SCP Process
on page 2-11. For considerations relating to the
interaction of high-PIN and low-PIN processes in a network, see Interprocess
Communications Restrictions on page 3-9.
file-number
contains a file number for use in subsequent references to the process, as in the
FILE_OPEN_ and FILE_CLOSE_ procedure calls shown here.
startup-message
has the structure:
[0] message-code (-1)
[1:8] subvol (blank)
[9:20] in (blank)
[21:32] out (blank)
[33:n] parameter [value] [;parameter[value]]...
message-code
contains -1.