github.com/afumu/libc@v0.0.6/musl/src/misc/getpriority.c (about)

     1  #include <sys/resource.h>
     2  #include "syscall.h"
     3  
     4  int getpriority(int which, id_t who)
     5  {
     6  	int ret = syscall(SYS_getpriority, which, who);
     7  	if (ret < 0) return ret;
     8  	return 20-ret;
     9  }