SetGlobal (System subroutine): Difference between revisions
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==Usage notes== | ==Usage notes== | ||
<ul><li>All errors result in request cancellation. | <ul> | ||
<li>All errors result in request cancellation. | |||
<li>It is not an error to set a global that is not set. | <li>It is not an error to set a global that is not set. | ||
<li>Like <var>[[$Setg_Sys]]</var>, the <var>SetGlobal</var> method momentarily turns off multi-processing, so should not be used heavily in an <var class="product">MP/204</var> environment. | |||
<li>Like <var>[[$Setg_Sys]]</var>, the <var>SetGlobal</var> method momentarily turns off multi-processing, so should not be used heavily in an <var class="product">MP/204</var> environment. <var>[[SetString_(System_function)|SetString]]</var> does not suffer this limitation and should be used in these situations. | |||
</ul> | </ul> | ||
==Examples== | ==Examples== | ||
The following statement sets the system global called CHOLERIC: | The following statement sets the system global called <code>CHOLERIC</code>: | ||
<p class="code">%(system):setGlobal('CHOLERIC', 'ANGRY')</p> | <p class="code">%(system):setGlobal('CHOLERIC', 'ANGRY')</p> | ||
Revision as of 20:31, 16 November 2012
Set a system-wide global (System class)
The SetGlobal shared subroutine sets a system-wide global.
Syntax
%(System):SetGlobal( name, value)
Syntax terms
| %(System) | The class name in parentheses denotes a shared method. SetGlobal can also be invoked via a System object variable, which may be Null. |
|---|---|
| name | A string that identifies the global to be set. |
| value | A string that identifies the new value for the global. |
Usage notes
- All errors result in request cancellation.
- It is not an error to set a global that is not set.
- Like $Setg_Sys, the SetGlobal method momentarily turns off multi-processing, so should not be used heavily in an MP/204 environment. SetString does not suffer this limitation and should be used in these situations.
Examples
The following statement sets the system global called CHOLERIC:
%(system):setGlobal('CHOLERIC', 'ANGRY')
See also
- The setGlobal method, in the System class, performs a function identical to the $setg_sys function. That is, the following two statements are identical:
%(system):setGlobal('PHLEGMATIC', 'STOLID') %setg_sys('PHLEGMATIC', 'STOLID')
- For more information about system globals, see "System and SubSystem globals and strings".