$TsoCan: Difference between revisions

Latest revision as of 23:23, 20 September 2018

Cancel program invoked via $TsoAtt

Note: Many $functions have been deprecated in favor of Object Oriented methods. There is no OO equivalent for the $TsoCan function.

This function cancels a specific task running a program invoked via $TsoAtt or all such tasks initiated by the current user.

Note: This function requires the special version of the TSO full screen interface to Model 204 that is distributed by Sirius Software.

The $TsoCan function accepts one argument and returns a numeric status code or count.

Syntax

%result = $TsoCan([task_id])

Syntax terms

%result	Either the status code for the cancelled task or an error code.
task_id	The number that is the task id of the "task" for which status is requested. This is an optional argument; omitting it indicates that you want all tasks to be cancelled.

Error codes

$TsoCan normally returns the status code of the cancelled task. If there is some error that prevents the task from being cancelled, however, a negative error code is returned to indicate the problem.

-1 - Connection broken -4 - Not a TSO full screen IODEV (IODEV 11) -8 - Incorrect version of TSO interface -20 - LOUTPB too small

Example

The following program invokes a program called COMPRESS in the user's TSO address space with a parameter of DSN(JUNK.CNTL), issues a Find while COMPRESS is running, and then cancels the COMPRESS command if it is still running.

B %taskid = $TsoAtt( 'COMPRESS', , 'DSN(JUNK.CNTL)') FIND1: IN BIGFILE FIND ALL RECORDS FOR WHICH NAME IS LIKE 'SM*' END FIND %rc = $TsoCan( %taskid ) ... End

Products authorizing $TsoCan

Japanese $functions

@@ Line 2: / Line 2: @@
 <span class="pageSubtitle">Cancel program invoked via $TsoAtt</span>
-<p class="warning">Most Sirius $functions have been deprecated in favor of Object Oriented methods. There is no OO equivalent for the $TsoCan function.</p>
+<p class="warn"><b>Note: </b>Many $functions have been deprecated in favor of Object Oriented methods. There is no OO equivalent for the $TsoCan function.</p>
-This function cancels a specific task running a program invoked via $TsoAtt or all such tasks initiated by the current user.<blockquote> This function requires the special version of the TSO full screen interface to <var class="product">Model 204</var> that is distributed by Sirius Software. </blockquote>
+This function cancels a specific task running a program invoked via <var>$TsoAtt</var> or all such tasks initiated by the current user.<p>'''Note: ''' This function requires the special version of the TSO full screen interface to <var class="product">Model 204</var> that is distributed by Sirius Software. </p>
-The $TsoCan function accepts one argument and returns a numeric status code or count.
+The <var>$TsoCan</var> function accepts one argument and returns a numeric status code or count.
-The first argument is a number that is the task id of the "task" for which status is requested. This is an optional argument and if omitted indicates that you want all tasks to be cancelled.
 ==Syntax==
-<p class="syntax"><section begin="syntax" /> %RESULT = $TsoCan(task_id)
+<p class="syntax"><span class="term">%result</span> = <span class="literal">$TsoCan</span>([<span class="term">task_id</span>])
-<section end="syntax" /></p>
-<p class="caption">$TsoCan Function
 </p>
-<p class="caption">%RESULT is set either to the status code for the cancelled task or to an error code.</p>
+===Syntax terms===
+<table class="syntaxTable">
+<tr><th>%result</th>
+<td>Either the status code for the cancelled task or an [[#Error codes|error code]].</td></tr>
+<tr><th>task_id</th>
+<td>The number that is the task id of the "task" for which status is requested. This is an optional argument; omitting it indicates that you want all tasks to be cancelled.</td></tr>
+</table>
+===Error codes===
 <var>$TsoCan</var> normally returns the status code of the cancelled task. If there is some error that prevents the task from being cancelled, however, a negative error code is returned to indicate the problem.
-<p class="code">
+<p class="code"> -1 - Connection broken
-  -1 - Connection broken
+ -4 - Not a TSO full screen IODEV (IODEV 11)
-  -4 - Not a TSO full screen IODEV (IODEV 11)
+ -8 - Incorrect version of TSO interface
-  -8 - Incorrect version of TSO interface
+-20 - LOUTPB too small
- -20 - LOUTPB too small
-</p>
-<p class="caption">$TsoCan return codes
 </p>
-The following program invokes a program called 'COMPRESS' in the user's TSO address space with a parameter of 'DSN(JUNK.CNTL)', issues a FIND while 'COMPRESS' is running, and then cancels the 'COMPRESS' command if it is still running.
+==Example==
+The following program invokes a program called <code>COMPRESS</code> in the user's TSO address space with a parameter of <code>DSN(JUNK.CNTL)</code>, issues a <var>Find</var> while <code>COMPRESS</code> is running, and then cancels the <code>COMPRESS</code> command if it is still running.
-<p class="code"> B
+<p class="code">B
- %TASKID = $TsoAtt( 'COMPRESS', , 'DSN(JUNK.CNTL)')
+%taskid = $TsoAtt( 'COMPRESS', , 'DSN(JUNK.CNTL)')
- FIND1: IN BIGFILE FIND ALL RECORDS FOR WHICH
+FIND1: IN BIGFILE FIND ALL RECORDS FOR WHICH
- NAME IS LIKE 'SM*'
+NAME IS LIKE 'SM*'
- END FIND
+END FIND
- %RC = $TsoCan( %TASKID )
+%rc = $TsoCan( %taskid )
   ...
- END
+End
 </p>
+==Products authorizing {{PAGENAMEE}}==
 <ul class="smallAndTightList">
-<li>[[Japanese $Functions]]
+<li>Japanese $functions
 </ul>
-</p>
-<p class="caption">Products authorizing $TsoCan
-</p>
 [[Category:$Functions|$TsoCan]]