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arexx.e
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1992-09-02
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2KB
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74 lines
OPT MODULE
MODULE 'exec/ports', 'exec/nodes', 'rexx/storage', 'rexxsyslib'
RAISE "MEM" IF CreateArgstring()=NIL
DEF rexxsysbase
EXPORT PROC rx_OpenPort(portname)
DEF port:PTR TO mp,sig,exc=0
NEW port
Forbid()
IF FindPort(portname)
exc:="DOUB"
ELSE
port.sigtask:=FindTask(0)
port.flags:=PA_SIGNAL
port::ln.name:=portname
port::ln.type:=NT_MSGPORT
IF (sig:=AllocSignal(-1))=NIL
exc:="SIG"
ELSE
port.sigbit:=sig
AddPort(port)
ENDIF
ENDIF
Permit()
IF exc THEN Raise(exc)
ENDPROC port,Shl(1,sig)
EXPORT PROC rx_ClosePort(port:PTR TO mp)
IF port
FreeSignal(port.sigbit)
RemPort(port)
Dispose(port)
ENDIF
ENDPROC
EXPORT PROC rx_GetMsg(port)
DEF mes:PTR TO rexxmsg
IF mes:=GetMsg(port)
rexxsysbase:=mes.libbase
RETURN mes,Long(mes.args)
ENDIF
ENDPROC NIL,NIL
EXPORT PROC rx_ReplyMsg(mes:PTR TO rexxmsg,rc=0,resultstring=NIL)
mes.result1:=rc
mes.result2:=NIL
IF mes.action AND RXFF_RESULT AND (rc=0) AND (resultstring<>NIL)
mes.result2:=CreateArgstring(resultstring,StrLen(resultstring))
ENDIF
ReplyMsg(mes)
ENDPROC
EXPORT PROC rx_HandleAll(interpret_proc,portname) HANDLE
DEF port=NIL,sig,quit=FALSE,mes,s,rc,rs
port,sig:=rx_OpenPort(portname)
REPEAT
Wait(sig)
REPEAT
mes,s:=rx_GetMsg(port)
IF mes
quit,rc,rs:=interpret_proc(s)
rx_ReplyMsg(mes,rc,rs)
ENDIF
UNTIL (mes=NIL) OR (quit=TRUE)
UNTIL quit
Raise()
EXCEPT
rx_ClosePort(port)
IF exception THEN ReThrow()
ENDPROC