Function BZ2_bzWrite

#[export_name = "BZ2_bzWrite"]
pub unsafe extern "C" fn BZ2_bzWrite(
    bzerror: *mut c_int,
    b: *mut BZFILE,
    buf: *const c_void,
    len: c_int,
)

Absorbs len bytes from the buffer buf, eventually to be compressed and written to the file.

Returns

Possible assignments to bzerror

• BZ_PARAM_ERROR if any of
  • b.is_null()
  • buf.is_null()
  • len < 0
• BZ_SEQUENCE_ERROR if b was opened with BZ2_bzReadOpen
• BZ_IO_ERROR if there is an error writing to the compressed file
• BZ_OK otherwise

Safety

The caller must guarantee that

• bzerror satisfies the requirements of pointer::as_mut
• Either
  • b is NULL
  • b is initialized with BZ2_bzWriteOpen or BZ2_bzReadOpen
• Either
  • buf is NULL
  • buf is writable for len bytes