On 06/07/2017 06:50 PM, Eric Norum wrote:
> Why are timeouts for things like epicsEventWaitWithTImeout() limited to
> 1 hour?
> This is for R3.15.4, but I suspect the code is the same in lots of versions.
Since at least 2000 (first occurrence I find). The commit message
doesn't give any clues.
https://github.com/epics-base/epics-base/commit/8c60195f4b463bff42f6f967da8bc19d6f5ad11d#diff-583652b37e7f98cf7b720e489744ce88R57
Seems rather arbitrary, so I think this could be removed (or enlarged).
> The code that applies the limit is in src/libCom/osi/os/posix/osdTime.cpp:
>
> extern "C" epicsShareFunc void
> convertDoubleToWakeTime(double timeout,struct timespec *wakeTime)
> {
> struct timespec wait;
> int status;
>
> if(timeout<0.0) timeout = 0.0;
> else if(timeout>3600.0) timeout = 3600.0;
> #ifdef CLOCK_REALTIME
> status = clock_gettime(CLOCK_REALTIME, wakeTime);
> #else
> {
> . . .
>
>
>
>
> --
> Eric Norum
> [email protected] <mailto:[email protected]>
>
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