CD. r Process Commands
that Manipulate the F i/e System T I 1
Perform Perform
General Fi/e Data
Support Manipulation
Functions Functions I I - DMSSTT DMSEDC, DMSEDF DMSEDI, DMSEDX
Verify the
ex istence of Create and
a file and update files
return its address I I DMSLST DMSUPD List the
Update
names of
source
files on a
files CMS disk I 1 DMSSYN DMSCPY Create synonyms Manipulate and abbreViations disk file
for a file name records
DMSRNM DMSCMP Rename
Compare
records in
a file
two files DMSERS DMSSRT Erase Sortlarrange records in
a file
afile
DMSRDC
Read a
record Figure 9. Details of
Perfor. The. DMSPRT Print a record T
DMSPUN PUllch a record
T DMSTYP Type a
record DMSASM Interface with the
assembler to
assemble files DMSDSK Load card- to­ disk, dump
disk-to-card DMSTPE Process
T APE command
functions
DMSMVE
Move data
from one
device to
another r
Manage
Virtual
Disk Data I DMSA C Access data
on a virtual
disk I DMSACM Build an active disk table I DMSACF Build file
status table blocks for a \nrtual disk System Functions
(Part 2 of 4) 1 Manage
the CMS File SY:!Jtern T
T Locate DatCl rn the CMS Fi/e System 1 DMSLAD Find an active disk
table I DMSLAF t-ind an
active file
table I DMSLFS Find a f'le
status
table
and the
1
Perform
File
Update
Functions 1 DMSARE
Clear an
active
disk table
T DMSFNS Close any
open files
on disk 1 DMSALU
Clear tables
and free storage
associated
with a DMSLAF Create or delete active file table entries Routines
2-54 IBft System Logic and Program Determination--Volume 2
that

0 I Handle I/O Operations I I I I Perform Perform Perform Console Disk Unit 1/0 1/0 Record I/O I I I DMSCIT J I DMSDIO I DMSPIO II Reaa or I Start an write one or Perform print I/O operation more blocks I/O functions j l of disk data
i I I 1 DMSCWT DMSTOO, R I DMSCIO Waitfora Manipulate I Perform read console event storage I card and punch to complete management
card I/O chains I I I DMSCAT DMSBRD. DMSBWR DMSCWR Stack a line Read or write
Writea
of console one or more line to the
input for items on a
console DMSCRD disk iiie I I DMSCRD DMSPNT Read a Set the read line of
or write console pointer for a inpui: file to a given file item I DMSCWR Write a line to the console Figure 9. Details of Perform Thea 1 I I Perform Write to
Tape a Display I/O Terminal I I DMSTPD DMSSCR Load display Read a buffers to be PDS tape displayed on
a screen I I DMSTIO DMSGIO I Issue a
Read or
write a tape I display to
record
screen DIAGNOSE I DMSTMA Read an unloaded PDS from tape
and place it in aMACUB C!S systea Functions
(Part 3 of 4) 0 Handle
Interrupts I I Wait for 1/0 to Complete I DMSIOW I DMSCIT Wait for I Handle an I/O event console
to take plaoe interrupts l DMSITS Handle SVC interrupts DMSITI Handle I/O -
interrupts DMSITE Handle external
interrupts DMSITP program check
interrupts
and the Routines CftS !ethod of Operation and Progra. Organization Qj Manage CMS Storage I DMSFRE and release free
system and
user storage DMSHDS DMSSMN Set up and
Allocate and
release user storage handle user- upon request by
defined SVC OSGETMAINI interrupts
FREEMAN macros DMSHDI Set up and handle user· defined 1/0 interrupts
that
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