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 HP OpenVMS I/O User's Reference Manual |
 I/O Function Codes |
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| Functions | Arguments | Modifiers |
|---|---|---|
| IO$_READVBLK IO$_READLBLK IO$_READPROMPT | P1 -- bufferaddress P2 -- buffer size P3 -- timeout P4 -- readterminator block address P5 -- prompt string buffer address P6 -- promptstring buffer size1 | IO$M_NOECHO IO$M_CVTLOW IO$M_NOFILTR IO$M_TIMED IO$M_PURGE IO$M_DSABLMBX IO$M_TRMNOECHO IO$M_ESCAPE |
| IO$_READVBLK | P1 -- bufferaddress P2 -- buffer size P3 -- accessmode to probe itemlist P4 -- (zero) P5 -- itemlistbuffer address P6 -- itemlist buffer size | IO$M_EXTEND2 |
| IO$_WRITEVBLK IO$_WRITELBLK IO$_WRITEPBLK | P1 -- bufferaddress P2 -- buffer size P3 -- (ignored) P4 -- carriagecontrol specifier3 | IO$M_CANCTRLO IO$M_ENABLMBX IO$M_NOFORMAT IO$M_REFRESH IO$M_BREAKTHRU |
| IO$_SETMODE IO$_SETCHAR | P1 -- characteristics buffer address P2 -- characteristics buffer size P3 -- speedspecifier P4 -- fill specifier P5 -- parityflags | |
| IO$_SETMODE IO$_SETCHAR | None | IO$M_HANGUP |
| IO$_SETMODE | P1 -- bufferaddress P2 -- buffer size | IO$M_BRDCST |
| IO$_SETMODE IO$_SETCHAR | P1 -- ASTservice routine address P2 -- AST parameter P3 -- accessmode to deliver AST | IO$M_CTRLCAST IO$M_CTRLYAST |
| IO$_SETMODE IO$_SETCHAR | P1 -- ASTservice routine address P2 -- character mask address P3 -- accessmode to deliver AST | IO$M_OUTBAND IO$M_TT_ABORT4 IO$M_INCLUDE |
| IO$_SETMODE IO$_SETCHAR | P1 -- addressof control signals | IO$M_SET_MODEM5 IO$M_MAINT |
| IO$_SETMODE IO$_SETCHAR | None | IO$M_LOOP IO$M_UNLOOP IO$M_MAINT |
| IO$_TTY_PORT | IO$M_LT_CONNECT IO$M_LT_DISCON | |
| IO$_TTY_PORT | P1 -- itemlist address6 P2 -- queuedstatus | IO$M_LT_MAP_PORT |
| IO$_TTY_PORT | P1 -- servicename descriptor address P2 -- service rating | IO$M_LT_RATING |
| IO$_TTY_PORT | P1 -- itemlist address P2 -- itemlist length P3 -- entitytype P4 -- entity string descriptor | IO$M_LT_SENSEMODE |
| IO$_TTY_PORT | P1 -- itemlist address P2 -- itemlist length P3 -- entitytype P4 -- entity string descriptor | IO$M_LT_SETMODE |
| IO$_SENSEMODE IO$_SENSECHAR | P1 -- characteristics buffer address P2 -- characteristics buffer size | IO$M_TYPEAHDCNT |
| IO$_SENSEMODE IO$_SENSECHAR | P1 -- addressof input modem signal block | IO$M_RD_MODEM |
| IO$_SENSEMODE | P1 -- buffer address P2 -- buffersize | IO$M_BRDCST |
| QIO Status Returns | ||
|---|---|---|
| SS$_ABORT | SS$_BADESCAPE | SS$_BADPARAM |
| SS$_CANCEL | SS$_CHANINTLK | SS$_CONTROLC |
| SS$_CONTROLO | SS$_CONTROLY | SS$_DATAOVERUN |
| SS$_INCOMPAT | SS$_NORMAL | SS$_PARITY |
| SS$_PARTESCAPE | SS$_TIMEOUT | |
1 Only for IO$_READPROMPT
2 Onlyfor itemlist read function. Do not specify with other modifiers.
3 Only for IO$_WRITEBLK and IO$_WRITEVBLK
4 Only with IO$M_OUTBAND
5 Only with IO$M_MAINT
6 Itemlist: IO$V_LT_MAP_NODENAM, IO$V_LT_MAP_PORNAM, IO$V_LT_MAP_SRVNAM, IO$V_LT_MAP_LNKNAM,and IO$V_LT_MAP_NETADR.
( Number takes you back )
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