RANDOM_GET

Write high-quality random data into a buffer. This function blocks when the implementation is unable to immediately provide sufficient high-quality random data. This function may execute slowly, so when large mounts of random data are required, it's advisable to use this function to seed a pseudo-random number generator, rather than to provide the random data directly.

(@interface func (export "random_get")
  ;;; The buffer to fill with random data.
  (param $buf (@witx pointer u8))
  (param $buf_len $size)
  (result $error (expected (error $errno)))
)