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Re: christos-time_t has been merged



On Jan 12, 12:34am, tsutsui%ceres.dti.ne.jp@localhost (Izumi Tsutsui) wrote:
-- Subject: Re: christos-time_t has been merged

| I have not checked whole libsa sources, but I think current
| time_t values in libsa are used to see timeout.
| In most case the timeout value is small enough to represent it
| even in short. (MAXTMO is 20 in sys/lib/libsa/net.h)
| 
| On the other hand, MD sources must provide the getsecs() function
| to see relative time and it currently also returns time_t, 
| but it might be better to use unsigned (and smaller) types
| to allow ignoring wraparound.
| 
| Actually there are few MD getsecs() which return full 32bit values,
| and some of them just returns 0~59 using "sec" of TOD clock device
| to simplify code.
| 
| So how about the following types for libsa?
| 
| 1) use uint16_t for getsecs()
| 
|  65536 secs == ~18 hours are enough for boot, and
|  only three files in sys/lib/libsa refer it.
|  (not sure how many MD drivers also use it though)
| 
| 2) use int for all other functions which use time_t for timeout seconds
| 
|  Then mechanical replacements time_t -> int will work.
|  (I guess most backend drivers implicitly convert it to int or u_int
|   via their prototype)
| 
| Comments?

I am fine with both suggestions, but don't you think that having typedefs
instead of using naked types is better?

christos


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