waitpid(2)

DESCRIPTION

Waits for a child process and optionally reaps it.

SYNOPSIS

long waitpid(int pid, int *status, uint32_t options);

RETURN VALUE

• Returns a non-negative result on success. Negative values are ABI errno codes.

ERRORS

• -EFAULT
  • .
• -ECHILD
  • .
• -EINVAL
  • .
• -ESRCH
  • .

ABI

Arguments enter through the direct syscall ABI; validation is performed before entering the process subsystem.