Execute functions before exiting - Revision history

Stierhof at 09:10, 13 August 2018

2018-08-13T09:10:20Z

Stierhof at 09:08, 13 August 2018

2018-08-13T09:08:42Z

Stierhof: Created page with " Sometimes it is necessary to execute functions when slang/isis is closed. In slang scripts this can be easily done via the atexit function. For example:

..."

2018-08-13T08:42:25Z

Created page with " Sometimes it is necessary to execute functions when slang/isis is closed. In slang scripts this can be easily done via the <code>atexit</code> function. For example: <pre>..."

New page

Sometimes it is necessary to execute functions when slang/isis is closed. In slang scripts this can be easily done via the <code>atexit</code> function.

For example:

<pre>
define my_exit_function () { vmessage("Exit time: %s", strftime("%H:%M:%S")); }

atexit(&my_exit_function);
</pre>

will print the exit time of the slang/isis process to <code>stdout</code>.

== Exit function in C ==

The same behaviour can be accomplished in an slang module written in C. The function that needs to be called gets appended via

<pre>
void my_module_exit_function (void) {
destroy(global_object);
printf("Cleaning up mess!");
}

SLang_add_cleanup_function(&my_module_exit_function);
</pre>

This might be necessary when memory is allocated and used until the very end.
[[Category:Isis / Slang]]

@@ Line 4: / Line 4: @@
 For example:
-<syntaxhighlight lang="c" line='line'>
+<syntaxhighlight lang="C" line='line'>
 define my_exit_function () { vmessage("Exit time: %s", strftime("%H:%M:%S")); }
@@ Line 16: / Line 16: @@
 The same behaviour can be accomplished in an slang module written in C. The function that needs to be called gets appended via
-<syntaxhighlight lang="c" line='line'>
+<syntaxhighlight lang="C" line='line'>
 void my_module_exit_function (void) {
      destroy(global_object);
-     printf("Cleaning up mess!");
+     printf("Cleaning up mess!\n");
+}

Execute functions before exiting - Revision history

Stierhof at 09:10, 13 August 2018

Stierhof at 09:08, 13 August 2018

Stierhof: Created page with " Sometimes it is necessary to execute functions when slang/isis is closed. In slang scripts this can be easily done via the atexit function. For example: ..."

Stierhof: Created page with " Sometimes it is necessary to execute functions when slang/isis is closed. In slang scripts this can be easily done via the `atexit` function. For example:
..."