Subversion Repositories

?revision_form?Rev ?revision_input??revision_submit??revision_endform?

Rev 3 | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
3 magnus 1
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
2
<html><head>
3
<title>liboop: oop_sys_run()</title>
4
<link rel="stylesheet" type="text/css" href="style.css">
5
</head><body>
6
 
7
<h2>oop_sys_run(), oop_sys_run_once()</h2>
8
 
9
<pre>
10
#include &lt;oop.h&gt;
11
 
12
/* <em>Run the event loop.</em> */
13
oop_source *oop_sys_run(oop_source_sys *sys);
14
oop_source *oop_sys_run_once(oop_source_sys *sys);
15
</pre>
16
 
17
<h3>Arguments.</h3>
18
<dl>
19
<dt><b>oop_source_sys *sys</b>
20
<dd>The event source to operate.
21
</dl>
22
 
23
<h3>Description.</h3>
24
 
25
The oop_sys_run() function starts waiting for events registered with the
26
system event source <em>sys</em>.  As events (file descriptor activity, timed
27
events, and signals) occur, the appropriate event sinks are called.  As long
28
as these callbacks return OOP_CONTINUE, the function continues running and
29
processing events.<p>
30
 
31
When one of the callbacks returns some other value, oop_sys_run returns this
32
value.  You can use this technique to allow callbacks to return data to the
33
"owner" of the event loop (the caller of oop_sys_run).  You may then decide
34
whether to restart the event loop (by calling oop_sys_run again) or not.<p>
35
 
36
If an error occurs waiting for events, oop_sys_run returns OOP_ERROR.
37
If no event sinks are registered (which would lead to an infinite delay),
38
oop_sys_run returns OOP_CONTINUE.<p>
39
 
40
The oop_sys_run_once() function behaves just like oop_sys_run(), but returns
41
immediately after processing any pending results.  The return values are the
42
same as oop_sys_run(), except that a return of OOP_CONTINUE does not
43
necessarily mean that no event sinks are registered.<p>
44
 
12 magnus 45
<hr><a href="ref.html">liboop reference</a></body></html>