100 lines
2.0 KiB
C++
100 lines
2.0 KiB
C++
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#ifndef ZLIB_CPP_HPP
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#define ZLIB_CPP_HPP
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#include <string>
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#include <vector>
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#include <memory>
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#include <cstdint>
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namespace zlib_cpp {
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// 前向声明
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class ZStream;
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class ZCompressor;
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class ZDecompressor;
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class ZError;
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// 常量定义 (对应zlib中的定义)
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enum class FlushMode {
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NO_FLUSH = 0,
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PARTIAL_FLUSH = 1,
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SYNC_FLUSH = 2,
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FULL_FLUSH = 3,
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FINISH = 4,
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BLOCK = 5,
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TREES = 6
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};
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enum class CompressionLevel {
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NO_COMPRESSION = 0,
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BEST_SPEED = 1,
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BEST_COMPRESSION = 9,
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DEFAULT_COMPRESSION = -1
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};
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enum class CompressionStrategy {
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DEFAULT_STRATEGY = 0,
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FILTERED = 1,
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HUFFMAN_ONLY = 2,
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RLE = 3,
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FIXED = 4
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};
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enum class StatusCode {
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OK = 0,
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STREAM_END = 1,
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NEED_DICT = 2,
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ERRNO = -1,
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STREAM_ERROR = -2,
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DATA_ERROR = -3,
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MEM_ERROR = -4,
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BUF_ERROR = -5,
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VERSION_ERROR = -6
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};
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enum class DataType {
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BINARY = 0,
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TEXT = 1,
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UNKNOWN = 2
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};
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// 版本信息
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class Version {
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public:
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static std::string getVersionString();
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static int getMajor();
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static int getMinor();
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static int getRevision();
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static int getSubRevision();
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};
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// 异常类
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class ZException : public std::exception {
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private:
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StatusCode _code;
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std::string _message;
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public:
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ZException(StatusCode code, const std::string& message);
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virtual ~ZException() noexcept = default;
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virtual const char* what() const noexcept override;
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StatusCode getCode() const noexcept;
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};
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// 简便函数
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std::vector<uint8_t> compress(const std::vector<uint8_t>& data,
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CompressionLevel level = CompressionLevel::DEFAULT_COMPRESSION);
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std::vector<uint8_t> decompress(const std::vector<uint8_t>& data);
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uint32_t adler32(const std::vector<uint8_t>& data);
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uint32_t crc32(const std::vector<uint8_t>& data);
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// 辅助函数
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uint32_t adler32Combine(uint32_t adler1, uint32_t adler2, size_t len2);
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uint32_t crc32Combine(uint32_t crc1, uint32_t crc2, size_t len2);
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} // namespace zlib_cpp
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#endif // ZLIB_CPP_HPP
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