Messages in this thread | | | From | Brad Hards <> | Subject | Re: gettimeofday problem | Date | Tue, 25 Jun 2002 21:50:10 +1000 |
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On Tue, 25 Jun 2002 21:45, Richard B. Johnson wrote: > On Tue, 25 Jun 2002, Brad Hards wrote: > > On Tue, 25 Jun 2002 10:37, Christian Robert wrote: > > > gettimeofday (&tv, NULL); > > > > How about checking the return value of the function call? > > > > Brad > > -- > > http://conf.linux.org.au. 22-25Jan2003. Perth, Australia. Birds in Black. > > I think the only possible error returned would relate to the time-zone > being invalid. The time-zone pointer being a NULL is valid so it isn't > going to return EINVAL. It was just a thought - it just seemed a reasonable thing to test for, since the call can fail.
I didn't check the lib code, so I imagined that their might be some glibc munging of the syscall output. man gettimeofday sez, inter alia: EINVAL Timezone (or something else) is invalid.
EFAULT One of tv or tz pointed outside your accessible address space.
As you pointed out, EINVAL doesn't seem too likely, and I can't see a pointer problem. So it looks like something else.
Brad
-- http://conf.linux.org.au. 22-25Jan2003. Perth, Australia. Birds in Black. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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