nsz Git - musl/blob - compat/time32/wait4_time32.c

   1 #define _BSD_SOURCE
   2 #include "time32.h"
   3 #include <string.h>
   4 #include <stddef.h>
   5 #include <sys/wait.h>
   6
   7 struct compat_rusage {
   8         struct timeval32 ru_utime;
   9         struct timeval32 ru_stime;
  10         long    ru_maxrss;
  11         long    ru_ixrss;
  12         long    ru_idrss;
  13         long    ru_isrss;
  14         long    ru_minflt;
  15         long    ru_majflt;
  16         long    ru_nswap;
  17         long    ru_inblock;
  18         long    ru_oublock;
  19         long    ru_msgsnd;
  20         long    ru_msgrcv;
  21         long    ru_nsignals;
  22         long    ru_nvcsw;
  23         long    ru_nivcsw;
  24 };
  25
  26 pid_t __wait4_time32(pid_t pid, int *status, int options, struct compat_rusage *usage)
  27 {
  28         struct rusage ru;
  29         int r = wait4(pid, status, options, usage ? &ru : 0);
  30         if (!r && usage) {
  31                 usage->ru_utime.tv_sec = ru.ru_utime.tv_sec;
  32                 usage->ru_utime.tv_usec = ru.ru_utime.tv_usec;
  33                 usage->ru_stime.tv_sec = ru.ru_stime.tv_sec;
  34                 usage->ru_stime.tv_usec = ru.ru_stime.tv_usec;
  35                 memcpy(&usage->ru_maxrss, &ru.ru_maxrss,
  36                         sizeof(struct compat_rusage) -
  37                         offsetof(struct compat_rusage, ru_maxrss));
  38         }
  39         return r;
  40 }