Creating a Message File [ Interprocess Communication:Programmer's Guide ] MPE/iX 5.0 Documentation
Interprocess Communication:Programmer's Guide
Creating a Message File
Message files can be created in several ways. To create a message file
with the :BUILD command, use the MSG keyword. For example, to build a
message file named PAULA, enter:
:BUILD PAULA; MSG
When a user process opens a new file programmatically and indicates that
it will be a message file, the HPFOPEN intrinsic creates the new message
file. Or HPFOPEN can explicitly reference a :FILE command. Use the MSG
keyword in the :FILE command to create a new message file:
:FILE LARS, NEW; MSG
When you perform a :LISTF,2 command, message files are identified by an M
in the third column of the TYP field. For example:
FILENAME CODE -----LOGICAL RECORD------ -----SPACE-----
SIZE TYP EOF LIMIT R/B SECTORS #X MX
PAULA 128W VBM 0 1031 1 258 1 8
MPE/iX 5.0 Documentation