]> git.saurik.com Git - apple/xnu.git/blame - osfmk/man/thread_set_state.html
xnu-1504.3.12.tar.gz
[apple/xnu.git] / osfmk / man / thread_set_state.html
CommitLineData
13fec989
A
1<h2>thread_set_state</h2>
2<hr>
3<p>
4<strong>Function</strong> - Set the target thread's user-mode execution state.
5<h3>SYNOPSIS</h3>
6<pre>
7<strong>kern_return_t thread_set_state</strong>
8 <strong>(thread_act_t</strong> <var>target_thread</var>,
9 <strong>thread_state_flavor_t</strong> <var>flavor</var>,
10 <strong>thread_state_t</strong> <var>new_state</var>,
11 <strong>target_thread</strong> <var>new_state_count</var><strong>);</strong>
12</pre>
13<h3>PARAMETERS</h3>
14<dl>
15<p>
16<dt> <var>target_thread</var>
17<dd>
18[in thread send right]
19The thread for which to set the execution state.
20The calling thread cannot specify itself.
21<p>
22<dt> <var>flavor</var>
23<dd>
24[in scalar]
25The type of state to set. Valid values correspond to
26supported machine architecture features.
27<p>
28<dt> <var>new_state</var>
29<dd>
30[pointer to in structure]
31State information for the specified thread.
32<p>
33<dt> <var>new_state_count</var>
34<dd>
35[in scalar]
36The size of the buffer (in natural-sized units).
37</dl>
38<h3>DESCRIPTION</h3>
39<p>
40The <strong>thread_set_state</strong> function sets the execution state
41(for example, the
42machine registers) for <var>target_thread</var>. <var>flavor</var> specifies the type
43of state to set.
44<p>
45The format of the state to set is machine specific; it is defined in
46<strong>mach/thread_status.h</strong>.
47<h3>RETURN VALUES</h3>
48<p>
49Only generic errors apply.
50<h3>RELATED INFORMATION</h3>
51<p>
52Functions:
53<a href="task_info.html"><strong>task_info</strong></a>,
54<a href="thread_get_state.html"><strong>thread_get_state</strong></a>,
55<a href="thread_info.html"><strong>thread_info</strong></a>.