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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-03-08 23:33:41 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-03-08 23:33:41 +0000 |
commit | 51835242fc57907004ec44d499b5278ac6cc822b (patch) | |
tree | 13c1a8443302b1e6527a50c27f5e1ba8ae1049ca /nuttx/Documentation/NuttxUserGuide.html | |
parent | 173b6c45055ea605169f1b54458cbfbe40db467d (diff) | |
download | px4-nuttx-51835242fc57907004ec44d499b5278ac6cc822b.tar.gz px4-nuttx-51835242fc57907004ec44d499b5278ac6cc822b.tar.bz2 px4-nuttx-51835242fc57907004ec44d499b5278ac6cc822b.zip |
Add support for priority inheritance
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1581 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/Documentation/NuttxUserGuide.html')
-rw-r--r-- | nuttx/Documentation/NuttxUserGuide.html | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/nuttx/Documentation/NuttxUserGuide.html b/nuttx/Documentation/NuttxUserGuide.html index 0dfa64a87..5869beedf 100644 --- a/nuttx/Documentation/NuttxUserGuide.html +++ b/nuttx/Documentation/NuttxUserGuide.html @@ -13,7 +13,7 @@ <h1><big><font color="#3c34ec"><i>NuttX Operating System<p>User's Manual</i></font></big></h1> <p><small>by</small></p> <p>Gregory Nutt<p> - <p>Last Updated: November 18, 2008</p> + <p>Last Updated: March 8, 2009</p> </td> </tr> </table> @@ -1718,9 +1718,11 @@ interface of the same name. <p> Some operating systems avoid priority inversion by <I>automatically</I> increasing the priority of the low-priority <I>Task C</I> (the operable - buzz-word for this behavior is <I>priority inheritance</I>). NuttX does not - support this behavior. As a consequence, it is left to the designer to - provide implementations that will not suffer from priority inversion. + buzz-word for this behavior is <I>priority inheritance</I>). NuttX + supports this behavior, but only if <code>CONFIG_PRIORITY_INHERITANCE</code> + is defined in your OS configuration file. If <code>CONFIG_PRIORITY_INHERITANCE</code> + is not defined, then it is left to the designer to provide implementations + that will not suffer from priority inversion. The designer may, as examples: </p> <ul> |