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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-06-15 21:44:27 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-06-15 21:44:27 +0000 |
commit | 7ab326bbb406504d0ae528af8a06b8456201b6a6 (patch) | |
tree | b24fad5ab2aaa4434d354822b7563426cc08a8a1 /nuttx/Documentation | |
parent | 8e8a4c5677c081b145768538d9944d817e3985c8 (diff) | |
download | px4-nuttx-7ab326bbb406504d0ae528af8a06b8456201b6a6.tar.gz px4-nuttx-7ab326bbb406504d0ae528af8a06b8456201b6a6.tar.bz2 px4-nuttx-7ab326bbb406504d0ae528af8a06b8456201b6a6.zip |
Add conditional compilation to eliminate or limit cloning of descriptors when a new task is created
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1886 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/Documentation')
-rw-r--r-- | nuttx/Documentation/NuttxPortingGuide.html | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/nuttx/Documentation/NuttxPortingGuide.html b/nuttx/Documentation/NuttxPortingGuide.html index 23eeb5cb9..48a6b5fd9 100644 --- a/nuttx/Documentation/NuttxPortingGuide.html +++ b/nuttx/Documentation/NuttxPortingGuide.html @@ -2067,16 +2067,20 @@ extern void up_ledoff(int led); </li> <li> <code>CONFIG_FDCLONE_DISABLE</code>: Disable cloning of all file descriptors - by task_create() when a new task is started. + by task_create() when a new task is started. + If set, all files/drivers will appear to be closed in the new task. </li> <li> <code>CONFIG_FDCLONE_STDIO</code>: Disable cloning of all but the first three file descriptors (stdin, stdout, stderr) by task_create() when a new task is started. + If set, all files/drivers will appear to be closed in the new task except + for stdin, stdout, and stderr. </li> <li> <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> </ul> |