falcotcp 0.2.0

TCP server/client
Documentation 
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use crate::enums::CompressionAlgorithm;

#[inline]
#[allow(unreachable_code)]
pub const fn get_compressor(_size: usize) -> CompressionAlgorithm {
    // heubias-performance
    #[cfg(all(feature = "heubias-performance", not(feature = "heubias-ratio")))]
    {
        #[cfg(feature = "LZ4")]
        return CompressionAlgorithm::Lz4;
        #[cfg(not(feature = "LZ4"))]
        {
            #[cfg(feature = "ZSTD")]
            return CompressionAlgorithm::Zstd;
            #[cfg(not(feature = "ZSTD"))]
            {
                #[cfg(feature = "GZIP")]
                return CompressionAlgorithm::Gzip;
                #[cfg(not(feature = "GZIP"))]
                return CompressionAlgorithm::None;
            }
        }
    }
    #[cfg(all(feature = "heubias-ratio", not(feature = "heubias-performance")))]
    {
        let size = _size;
        #[cfg(any(feature = "LZMA", feature = "GZIP", feature = "ZSTD", feature = "LZ4"))]
        if size < 10485760 {
            #[cfg(feature = "LZMA")]
            {
                return CompressionAlgorithm::Lzma;
            }
            #[cfg(feature = "GZIP")]
            {
                return CompressionAlgorithm::Gzip;
            }
            #[cfg(feature = "ZSTD")]
            {
                return CompressionAlgorithm::Zstd;
            }
            #[cfg(feature = "LZ4")]
            {
                return CompressionAlgorithm::Lz4;
            }
        }
        #[cfg(any(feature = "GZIP", feature = "ZSTD", feature = "LZ4"))]
        if size > 10485760 && size < 209715200 {
            #[cfg(feature = "GZIP")]
            {
                return CompressionAlgorithm::Gzip;
            }
            #[cfg(feature = "ZSTD")]
            {
                return CompressionAlgorithm::Zstd;
            }
            #[cfg(feature = "LZ4")]
            {
                return CompressionAlgorithm::Lz4;
            }
        }
        #[cfg(any(feature = "ZSTD", feature = "GZIP"))]
        if size >= 209715200 && size < 314572800 {
            #[cfg(feature = "ZSTD")]
            {
                return CompressionAlgorithm::Zstd;
            }
            #[cfg(feature = "GZIP")]
            {
                return CompressionAlgorithm::Gzip;
            }
        }
        #[cfg(feature = "LZ4")]
        if size >= 314572800 {
            // 300 mib
            #[cfg(feature = "LZ4")]
            {
                return CompressionAlgorithm::Lz4;
            }
        }
        CompressionAlgorithm::None
    }
    #[cfg(any(
        all(feature = "heubias-ratio", feature = "heubias-performance"),
        not(any(feature = "heubias-ratio", feature = "heubias-performance"))
    ))]
    {
        #[cfg(any(feature = "LZMA", feature = "ZSTD", feature = "GZIP", feature = "LZ4"))]
        let size = _size;
        #[cfg(any(feature = "LZMA", feature = "ZSTD", feature = "GZIP", feature = "LZ4"))]
        if size < 10485760 {
            #[cfg(feature = "LZMA")]
            {
                return CompressionAlgorithm::Lzma;
            }
            #[cfg(feature = "ZSTD")]
            {
                return CompressionAlgorithm::Zstd;
            }
            #[cfg(feature = "GZIP")]
            {
                return CompressionAlgorithm::Gzip;
            }
            #[cfg(feature = "LZ4")]
            {
                return CompressionAlgorithm::Lz4;
            }
        }
        #[cfg(any(feature = "ZSTD", feature = "GZIP", feature = "LZMA"))]
        if size >= 10485760 && size < 209715200 {
            #[cfg(feature = "ZSTD")]
            {
                return CompressionAlgorithm::Zstd;
            }
            #[cfg(feature = "LZMA")]
            {
                return CompressionAlgorithm::Lzma;
            }
            #[cfg(feature = "GZIP")]
            {
                return CompressionAlgorithm::Gzip;
            }
        }
        #[cfg(any(feature = "ZSTD", feature = "LZMA"))]
        if size >= 209715200 {
            #[cfg(feature = "ZSTD")]
            {
                return CompressionAlgorithm::Zstd;
            }
            #[cfg(feature = "LZMA")]
            {
                return CompressionAlgorithm::Lzma;
            }
        }

        CompressionAlgorithm::None
    }
}