s6

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git clone https://ccx.te2000.cz/git/s6
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ftrigr_ack.c (335B)

      1 /* ISC license. */
      2 
      3 #include <stdint.h>
      4 #include <skalibs/genalloc.h>
      5 #include <s6/ftrigr.h>
      6 
      7 void ftrigr_ack (ftrigr_t *a, size_t n)
      8 {
      9   size_t len = genalloc_len(uint16_t, &a->list) ;
     10   a->head += n ;
     11   if (a->head > len) a->head = len ;
     12   if (a->head == len)
     13   {
     14     a->head = 0 ;
     15     genalloc_setlen(uint16_t, &a->list, 0) ;
     16   }
     17 }