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Annotation of researchv10dc/dist/man/v3/man7/dpd.7, revision 1.1.1.1

1.1       root        1: .pa 1
                      2: .he 'DPD (VII)'3/15/72'DPD (VII)'
                      3: .ti 0
                      4: NAME           dpd -- spawn data phone daemon
                      5: .sp
                      6: .ti 0
                      7: SYNOPSIS       /etc/dpd________
                      8: .sp
                      9: .ti 0
                     10: DESCRIPTION    dpd___
                     11: is the 201 data phone daemon.
                     12: It is designed to submit jobs to
                     13: the Honeywell 6070 computer via the gerts
                     14: interface.
                     15: .sp
                     16: dpd___ uses the directory /usr/dpd________.
                     17: The file lock____ in that directory is used
                     18: to prevent two daemons from becoming active.
                     19: After the daemon has successfully set the lock,
                     20: it forks and the main path exits, thus
                     21: spawning the daemon.
                     22: /usr/dpd________ is scanned for any file
                     23: beginning with df__.
                     24: Each such file is submitted as a job.
                     25: Each line of a job file must begin with a key
                     26: character to specify what to do with the remainder
                     27: of the line
                     28: .sp
                     29: .in +3
                     30: S_ directs dpd to generate a unique snumb card.
                     31: This card is generated by incrementing the first
                     32: word of the file /usr/dpd/snumb______________
                     33: and converting that to decimal concatenated with
                     34: the station ID.
                     35: .sp
                     36: L_ specifies that the remainder of the line is to
                     37: be sent as a literal.
                     38: .sp
                     39: B_ specifies that the rest of the line
                     40: is a file name. That file is to
                     41: be sent as binary cards.
                     42: .sp
                     43: F_ is the same as B_ except a form feed is prepended to the file.
                     44: .sp
                     45: U_ specifies that the rest of the line
                     46: is a file name.
                     47: After the job has been transmitted,
                     48: the file is unlinked.
                     49: .sp
                     50: .in -3
                     51: Any error encountered will cause the daemon to
                     52: drop the call, wait up to 20 minutes and start over.
                     53: This means that an improperly constructed
                     54: df__ file may cause the same job to be submitted
                     55: every 20 minutes.
                     56: .sp
                     57: While waiting, the
                     58: daemon checks to
                     59: see that the lock____ file still exists.
                     60: If the lock____ is gone, the
                     61: daemon will exit.
                     62: .sp
                     63: .ti 0
                     64: FILES          /dev/dn0,
                     65: /dev/dp0,
                     66: /usr/dpd/*
                     67: .sp
                     68: .ti 0
                     69: SEE ALSO       opr(I)
                     70: .sp
                     71: .ti 0
                     72: DIAGNOSTICS    --
                     73: .sp
                     74: .ti 0
                     75: BUGS           --

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