Nmingott: import + hilight

2025-05-12T20:35:35Z

import + hilight

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 * You absolutely need the package <code>OSProcess</code>
 * To get a reference to the process which is running your Cuis image do:
- UnixProcess thisOSProcess .     "=>  a UnixProcess with pid 14751 "
+UnixProcess thisOSProcess . "=> a UnixProcess with pid 14751 "
 * Then watch these interactions it should be all clear to you
- ". get the current working directory of the shell when it run Cuis "
+". get the pid of the Cuis process and his father pid "
- UnixProcess thisOSProcess getCwd.     "=> '/home/p/prog/cuis-project' "
+UnixProcess thisOSProcess pid.    "=> 14751 "
- UnixProcess programName .
+UnixProcess stdOut nextPutAll: 'Hello world ! '.

Nmingott: imported material

2025-05-12T20:30:12Z

imported material

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* You absolutely need the package <code>OSProcess</code>
* To get a reference to the process which is running your Cuis image do:

UnixProcess thisOSProcess . "=> a UnixProcess with pid 14751 "

* Then watch these interactions it should be all clear to you

". get the current working directory of the shell when it run Cuis "
UnixProcess thisOSProcess getCwd. "=> '/home/p/prog/cuis-project' "

". get the pid of the Cuis process and his father pid "
UnixProcess thisOSProcess pid. "=> 14751 "
UnixProcess thisOSProcess ppid. "=> 14750 "

" ------------
from here on there are class method shortcuts that let you type less
but the idea is alwys the same you are asking 'UnixProcess thisOSProcess' to
give you info.
------------ "

". get the environment variables of the shell who run Cuis "
UnixProcess env. " => a Dictionary(#CLUTTER_IM_MODULE->'ibus' #COLORFGBG->'0;15'
#COLORTERM->'truecolor' #DBUS_SESSION_BUS_ADDRESS->'unix:path=/run/user/1000/bus' ....
#DESKTOP_SESSION->'plasma' #DISPLAY->':0.0' ) "

". the program name corresponding to Cuis, which is the name of the OpenSmalltalkVM"
UnixProcess programName .
"=> './sqcogspur64linuxht/lib/squeak/5.0-202003021730/squeak' "

" . the VM arguments, where there is Cuis image file and some extra parameters "
UnixProcess arguments .
"=> #('Cuis-Smalltalk-Dev/Cuis5.0-4975.image' '-d' 'Preferences veryBigFonts.') "

". get stdin, stdout, stderr "
". observe that by default, as of now, stdout and stdrr are both copied to Transcript
but only stderr will go printed into the shell which runs Cuis. "
UnixProcess stdOut nextPutAll: 'Hello world ! '.
UnixProcess stdErr nextPutAll: 'Hello world ! '.

The basics of interacting with Unix - Revision history

Nmingott: import + hilight

Nmingott: imported material