Function `BZ2_bzCompress`

pub unsafe extern "C" fn BZ2_bzCompress(strm: *mut bz_stream, action: c_int) -> c_int

Compresses as much data as possible, and stops when the input buffer becomes empty or the output buffer becomes full.

Returns

BZ_SEQUENCE_ERROR if called on an invalid stream, e.g.
- before BZ2_bzCompressInit
- after BZ2_bzCompressEnd
BZ_PARAM_ERROR if any of
- strm.is_null()
- strm.state.is_null()
- action is not one of BZ_RUN, BZ_FLUSH or BZ_FINISH
BZ_RUN_OK successfully compressed, but ran out of input or output space
BZ_FLUSH_OK not all compressed data has been written to the output yet
BZ_FINISH_OK if all input has been read but not all output has been written to the output buffer yet
BZ_STREAM_END if all input has been read all output has been written to the output buffer

Either
- strm is NULL
- strm satisfies the requirements of &mut *strm and was initialized with BZ2_bzCompressInit
Either
- strm.next_in is NULL and strm.avail_in is 0
- strm.next_in is readable for strm.avail_in bytes
Either
- strm.next_out is NULL and strm.avail_out is 0
- strm.next_out is writable for strm.avail_out bytes