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| author | Craig Small <csmall@enc.com.au> | 2016-05-01 16:50:25 +1000 |
|---|---|---|
| committer | Craig Small <csmall@enc.com.au> | 2016-05-01 16:50:25 +1000 |
| commit | 6b5cb345c5be6beeec74409657c8ebf9e8869d92 (patch) | |
| tree | e81c7e821c6afa02b417ca6a3d10cbcfdbdbb503 /doc | |
| parent | 6151b794c6a4f1958dee81fb17bad83b65166c8f (diff) | |
| download | procps-ng-6b5cb345c5be6beeec74409657c8ebf9e8869d92.tar.gz | |
library: procps_uptime() return value is a status
procps_uptime, previously just plain uptime() used to put the
uptime (as a double) in the first argument and return uptime
(as an int).
It meant if you ran
myuptime2 = procps_uptime(&myuptime1, NULL);
You might get different results for myuptime1 and myuptime2 because
they are different types.
Most library calls use the return value to return the status,
procps_uptime was in the middle.
Until now.
This function will return 0 on success. If you want (for whatever
reason) uptime as an int then cast it.
All of the procps binaries didn't use the return value for uptime
except ps which set a variable to it but never used it anywhere.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/procps_uptime.3 | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/doc/procps_uptime.3 b/doc/procps_uptime.3 index 912aa3c..61e70fb 100644 --- a/doc/procps_uptime.3 +++ b/doc/procps_uptime.3 @@ -16,7 +16,7 @@ .\" Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA .\" %%%LICENSE_END .\" -.TH PROCPS_UPTIME 3 2016-04-16 "libproc-2" +.TH PROCPS_UPTIME 3 2016-05-01 "libproc-2" .\" Please adjust this date whenever revising the manpage. .\" .SH NAME @@ -35,7 +35,7 @@ fills the location of the two double points with the current sytem uptime and idle time. .SH RETURN VALUE .BR procps_uptime () -returns a positive integer which is the uptime on success. On failure, it +returns 0 on success. On failure, it returns a negative integer to one of the values defined below. .TP .B -ERANGE |