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| author | Michael Kerrisk <mtk.manpages@gmail.com> | 2016-11-28 06:56:18 +0100 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2016-11-28 06:56:18 +0100 |
| commit | 268c281777066e940ad032ea000dd1aa82bdeb13 (patch) | |
| tree | 89be32e5c69ad5330fd2dd45bfe04fb37ea491ef | |
| parent | a6bdf7ee8dc409f52219eac1f8162258e61d1642 (diff) | |
| download | man-pages-268c281777066e940ad032ea000dd1aa82bdeb13.tar.gz | |
getpriority.2: Expand discussion of getpriority() return value
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
| -rw-r--r-- | man2/getpriority.2 | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/man2/getpriority.2 b/man2/getpriority.2 index 8f9754ffd0..4a1ff91a9d 100644 --- a/man2/getpriority.2 +++ b/man2/getpriority.2 @@ -118,7 +118,13 @@ soft limit; see .BR getrlimit (2) for details. .SH RETURN VALUE -Since +On success, +.BR getpriority () +returns the calling thread's nice value, which may be a negative number. +On error, it returns \-1 and sets +.I errno +to indicate the cause of the error. +Since a successful call to .BR getpriority () can legitimately return the value \-1, it is necessary to clear the external variable |