DCP/MCP SPO: Difference between revisions

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== Current state of Smalltalk platforms ==
== Domain Graphical User Interface (DGUI) ==
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* Full Squeak Desktop <blockquote>This is the current level used by the DGUI Project which runs direct on a Mac, Windows, or Linux desktop or via vnc from a MCP cell.</blockquote>
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* Limited Subsets
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**Pharo <blockquote>Pharo support is limited for a variety of reasons, with its vm, as in the squeakjs case, being the main limiting factor.</blockquote>
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**The SqueakJS SPO subset (WEBSPO) runs in browsers from images on a browser disk.<blockquote> Desktop is the reference SPO environment, the web version is a convenience for DCMS users. Originally I thought SqueakJS lacked working networking/socket functionality but it appears that at least no longer is the case, still evaluating but at this writing assume problems will be cleared subject to what can work in a browser. Browser has some inherent limitations vs a regular VM which together mean desktop will remain the default for DGUI/SPO.</blockquote><div style="color: yellow;background-color:black;float: right;position:relative;top:-20px;"> &nbsp; [https://ns2.meansofproduction.biz/SPO/run <span style="color: cyan;">WEBSPO</span>] is selectable as a home panel view  on devops1.sameboat.</div><br><br>
        <source src="https://meansofproduction.biz/pub/BuildingSPO.0.mp4" type='video/mp4'; />
On fileIn, a SPO level presumes a level of squeakmap, monticello, etc. but thereafter generally diverges in its internal Squot (git) repo.
        <p>No content matching HTML5 video setup!</p></video><br><font size=1>( 076-01-01 02:32 ) <span style="font-size:8px;">sound quality improves next clip</span></font>
Whether in a browser or on a desktop a SPO must be served from a node or cell of a MCP which is DCP managed.<br><br>
</td><td><video style="position: relative;height: 125px;" poster="http://meansofproduction.biz/images/SPO.jpg" controls>
        <source src="https://meansofproduction.biz/pub/BuildingSPO.1.mp4" type='video/mp4'; />
        <p>No content matching HTML5 video setup!</p></video><br><font size=1>( 076-01-02 02:19 )</font>
         
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</td><td><video style="position: relative;height: 125px;" poster="http://meansofproduction.biz/images/SPO.jpg" controls>
        <source src="https://meansofproduction.biz/pub/BuildingSPO.2.mp4" type='video/mp4'; />
        <p>No content matching HTML5 video setup!</p></video><br><font size=1>( 076-mm-dd 00:00 )</font>
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<span style="font-size:14px;font-weight:bold;">Construction of the DCP/MCP SPO</span></center><br>
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* Full Function  <blockquote>Squeak 6 is the version used as the direct control cell of DCP/MCP and this is the reference and only complete DGUI. The code can run on Mac and Windows but I only support those platforms via remote desktop to a linux vm/image. FileOut sources to port to other st setups.</blockquote>
<blockquote>On fileIn, a SPO level presumes a level of squeakmap, monticello, etc. but thereafter generally diverges in its image/src/change triple and internal git repo.<br></blockquote>
* Limited Function
**Pharo <blockquote>As in the squeakjs case (vm reasons) and for additional ones specific to it, Pharo support by me is limited to a first pass on fileIn of the above sources. In principle, the Pharo version should be intermediate between the Squeak and squeakjs ones but I dont intend to personally make it so.</blockquote>
**SqueakJS <blockquote> Originally I thought missing networking functionality was just backlogged but came to understand the inherent limitations of js vm are not such as can be reasonably addressed and so this must be kept in mind in using this subset which is good enough effort subject to these limitations. Since the regular X desktop squeak works pretty well at current common broadband rates, and that in a browser as well, there's a reduced value to this leg.</blockquote><br><div style="color: yellow;background-color:darkgreen;float: right;position:relative;top:-20px;"> &nbsp; [https://ns2.meansofproduction.biz/SPO/run <span style="color: cyan;">WEBSPO</span>] is selectable as a home panel view  on devops1.sameboat.</div><br>
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=== vs. DS G ===
Altho they have obvious superficial similarities, the visual programming paradigm and smalltalk are distinct, historically and in this novel. DS G is developed from the start based on node red building bottom up with DCP/MCP custom nodes and other contrib flows like the excellent Xstate smxstate. Smalltalk is about a decade older that G (LabView) FWIW. A G lang implies a fa&ccedil;ade over some generated backend and that's kinda the opposite of st which generates bytecodes for a vm tightly bound to the lang. It is also less of a general purposes lang with its control system and instrumentation focus.
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<small>Rest of this page unmaintained background on the SPO concept, in a running image the current code should be consulted in a Browser under the DomainSpace category .</small>
<small>Rest of this page unmaintained background on the SPO concept, in a running image the current code should be consulted in a Browser under the DomainSpace category .</small>
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<table><tr><td align=left width=50%><blockquote><b> Linux, Mac, or Windows desktop is reference version (DGUI)<br>Desktop and web SPO loaders are available from your DCMS account.</b><br><br>
<table><tr><td align=left width=50%><blockquote><b> Linux, Mac, or Windows desktop is reference version (DGUI)<br>Desktop and web SPO loaders are available from your DCMS account.</b><br><br>
<a  title="Zoom into current snapshot"  href=https://meansofproduction.biz/images/SPO-JS.png><img  
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<a  title="Zoom into 4714 snapshot"  href=https://meansofproduction.biz/images/SPO.jpg><img src=https://meansofproduction.biz/images/SPO-tn.jpg></a>
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*[[:en:Squeak|<span style="color: pink;">Squeak</span>]]
*[[:en:Squeak|<span style="color: pink;">Squeak</span>]]
*[[:en:Work Flow Language|<span style="color: pink;">WFL]]
*[[:en:Work Flow Language|<span style="color: pink;">WFL]]
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