https://wiki.visual-prolog.com/index.php?action=history&feed=atom&title=Multi-threading%3A_A_brief_introduction 2026-06-02T18:21:48Z Revision history for this page on the wiki MediaWiki 1.37.1 https://wiki.visual-prolog.com/index.php?title=Multi-threading:_A_brief_introduction&diff=4242&oldid=prev 2016-03-04T10:03:57Z

<p>category</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 12:03, 4 March 2016</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l44">Line 44:</td> <td colspan="2" class="diff-lineno">Line 44:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Thread safety in Visual Prolog]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Thread safety in Visual Prolog]]</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">[[Category:Tutorials]]</del></div></td><td colspan="2" class="diff-side-added"></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[category:Multi-threading]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[category:Multi-threading]]</div></td></tr> </table>

Thomas Linder Puls https://wiki.visual-prolog.com/index.php?title=Multi-threading:_A_brief_introduction&diff=2706&oldid=prev 2012-05-08T20:00:07Z

<p><a href="/index.php?title=Multi_threading_(A_brief_introduction)&amp;action=edit&amp;redlink=1" class="new" title="Multi threading (A brief introduction) (page does not exist)">Multi threading (A brief introduction)</a> moved to <a href="/index.php?title=Multi-threading:_A_brief_introduction" title="Multi-threading: A brief introduction">Multi-threading: A brief introduction</a></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <tr class="diff-title" lang="en"> <td colspan="1" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="1" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 22:00, 8 May 2012</td> </tr><tr><td colspan="2" class="diff-notice" lang="en"><div class="mw-diff-empty">(No difference)</div> </td></tr></table>

Thomas Linder Puls https://wiki.visual-prolog.com/index.php?title=Multi-threading:_A_brief_introduction&diff=2705&oldid=prev 2012-05-08T19:57:01Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 21:57, 8 May 2012</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l45">Line 45:</td> <td colspan="2" class="diff-lineno">Line 45:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Tutorials]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Tutorials]]</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[category:Multi-threading]]</ins></div></td></tr> </table>

Thomas Linder Puls https://wiki.visual-prolog.com/index.php?title=Multi-threading:_A_brief_introduction&diff=2700&oldid=prev 2012-05-08T19:13:22Z

<p>New page: Multi-threading is only possible in the &#039;&#039;&#039;Commercial Edition&#039;&#039;&#039;. Threads are represented by the &lt;vp&gt;thread&lt;/vp&gt; class/interface. And it is very simple to create a new thread: &lt;vip&gt;clau...</p> <p><b>New page</b></p><div>Multi-threading is only possible in the &#039;&#039;&#039;Commercial Edition&#039;&#039;&#039;.<br /> <br /> Threads are represented by the &lt;vp&gt;thread&lt;/vp&gt; class/interface. And it is very simple to create a new thread:<br /> <br /> &lt;vip&gt;clauses<br /> ...<br /> T = thread::start(myThread), % start a new thread which executes the predicate myThread<br /> ...<br /> <br /> predicates<br /> myThread : ().<br /> clauses<br /> myThread() :-<br /> ...&lt;/vip&gt;<br /> <br /> Using anonymous predicates it is also very simple to transfer data to the new thread:<br /> <br /> &lt;vip&gt;clauses<br /> ...<br /> SomeData = ...,<br /> T = thread::start( { :- myThreadWithData(SomeData) }),<br /> ...<br /> <br /> predicates<br /> myThreadWithData : (complexData ThreadInputData).<br /> clauses<br /> myThreadWithData(ThreadInputData) :-<br /> ...&lt;/vip&gt;<br /> <br /> You can wait for thread termination, because a thread object is a synchronization object:<br /> <br /> &lt;vip&gt;clauses<br /> ...<br /> SomeData = ...,<br /> T = thread::start( { :- myThreadWithData(SomeData) } ),<br /> ... % stuff done in parallel with T<br /> T:wait(), % Wait for T to terminate<br /> ...&lt;/vip&gt;<br /> <br /> Thread safe acces to shared data can be done using [[Language Reference/Monitors|monitors]] and/or synchronization objects like &lt;vp&gt;criticalSection&lt;/vp&gt;, &lt;vp&gt;event&lt;/vp&gt;, &lt;vp&gt;mutex&lt;/vp&gt; and &lt;vp&gt;semaphore&lt;/vp&gt;.<br /> <br /> === See also ===<br /> <br /> [[Thread safety in Visual Prolog]]<br /> <br /> [[Category:Tutorials]]</div>

Thomas Linder Puls