CODEWITHSUNDEEP
coperating-systemintminix
Mark Kennedy
Mark Kennedy

Reputation: 1781

Minix3 process table (proc.h)

Anyone know why certain fields in proc.h in Minix are char, when I thought they'd be int?

 37   char p_ticks_left;            /* number of scheduling ticks left */

 38   char p_quantum_size;          /* quantum size in ticks */

So, if we want to add a new "int" field should we make it a char?

Upvotes: 2

Views: 1752

Answers (2)

vincent
vincent

Reputation: 138

consider from design, maybe It's enough to save value of "number of scheduling ticks left" and "quantum size in ticks". and size of char is smaller than size of int.

Upvotes: 0

Alexey Frunze
Alexey Frunze

Reputation: 62068

If char is big enough to hold all the necessary values, why not use it? Of course, int may be somewhat more performant, but at the same time char is usually smaller.

I believe you can use any type that makes sense.

Upvotes: 1

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