sergiotarxz/nuttx
sergiotarxz/nuttx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Document workqueue configuration

Browse Source 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2231 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2009-11-05 23:14:34 +00:00
parent 9432626fd7
commit 4b44aa0fb8
1 changed files with 30 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
Documentation/NuttxPortingGuide.html
View File

@ -12,7 +12,7 @@
<h1><big><font color="#3c34ec">
<i>NuttX RTOS Porting Guide</i>
</font></big></h1>
<p>Last Updated: September 15, 2009</p>
<p>Last Updated: November 5, 2009</p>
</td>
</tr>
</table>
@ -2124,12 +2124,40 @@ extern void up_ledoff(int led);
<code>CONFIG_SDCLONE_DISABLE</code>: Disable cloning of all socket
desciptors by task_create() when a new task is started.
If set, all sockets will appear to be closed in the new task.
</li>:
</li>
<li>
<code>CONFIG_NXFLAT</code>: Enable support for the NXFLAT binary format.
This format will support execution of NuttX binaries located
in a ROMFS filesystem (see <code>examples/nxflat</code>).
</li>
<li>
<code>CONFIG_SCHED_WORKQUEUE</code>: Create a dedicated "worker" thread to
handle delayed processing from interrupt handlers. This feature
is required for some drivers but, if there are not complaints,
can be safely disabled. The worker thread also performs
garbage collection -- completing any delayed memory deallocations
from interrupt handlers. If the worker thread is disabled,
then that clean will be performed by the IDLE thread instead
(which runs at the lowest of priority and may not be appropriate
if memory reclamation is of high priority). If CONFIG_SCHED_WORKQUEUE
is enabled, then the following options can also be used:
</li>
<li>
<code>CONFIG_SCHED_WORKPRIORITY</code>: The execution priority of the worker
thread. Default: 50
</li>
<li>
<code>CONFIG_SCHED_WORKPERIOD</code>: How often the worker thread checks for
work. Default: 50 MS.
</li>
<li>
<code>CONFIG_SCHED_WORKSTACKSIZE</code>: The stack size allocated for the worker
thread. Default: CONFIG_IDLETHREAD_STACKSIZE.
</li>
<li>
<code>CONFIG_SIG_SIGWORK</code>: The signal number that will be used to wake-up
the worker thread. Default: 4
</li>
</ul>
<p>