skalibs

Mirror/fork of https://skarnet.org/software/skalibs/
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wait_pids_nohang.c (428B)

      1 /* ISC license. */
      2 
      3 #include <sys/wait.h>
      4 #include <skalibs/djbunix.h>
      5 
      6 int wait_pids_nohang (pid_t const *pids, unsigned int len, int *wstat)
      7 {
      8   for (;;)
      9   {
     10     int w ;
     11     pid_t r = wait_nohang(&w) ;
     12     if (!r || (r == (pid_t)-1)) return (int)r ;
     13     {
     14       unsigned int i = 0 ;
     15       for (; i < len ; i++) if (r == pids[i]) break ;
     16       if (i < len)
     17       {
     18         *wstat = w ;
     19         return 1+i ;
     20       }
     21     }
     22   }
     23 }