Function BZ2_bzwrite 

#[unsafe(export_name = "BZ2_bzwrite")]
pub unsafe extern "C" fn BZ2_bzwrite(
    b: *mut BZFILE,
    buf: *const c_void,
    len: c_int,
) -> c_int

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

Analogous to libc::fwrite.

Returns

The value len on success, or -1 on failure.

Safety

The caller must guarantee that

• Either
  • b is NULL
  • b is initialized with BZ2_bzWriteOpen or BZ2_bzReadOpen
• Either
  • buf is NULL
  • buf is readable for len bytes