acl/lib_acl_cpp/include/acl_cpp/stdlib/zlib_stream.hpp

#pragma once
#include "../acl_cpp_define.hpp"
#include "pipe_stream.hpp"

typedef struct z_stream_s z_stream;

namespace acl {

/**
 * ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͷ<EFBFBD><EFBFBD>壬<EFBFBD>ü<EFBFBD><EFBFBD>϶<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD>ٶȼ<EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD>ȵ<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD>ʽ
 * <EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD>ֵԽ<EFBFBD>ߣ<EFBFBD><EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>󣬵<EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD>ٶȻ<EFBFBD>Խ<EFBFBD><EFBFBD>
 */
typedef enum
{
	zlib_default = -1,      // ȱʡ<C8B1><CAA1>ѹ<EFBFBD><D1B9><EFBFBD><EFBFBD>
	zlib_level0 = 0,        // <20><><EFBFBD>͵<EFBFBD>ѹ<EFBFBD><D1B9><EFBFBD>ȣ<EFBFBD><C8A3><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD>Dz<EFBFBD>ѹ<EFBFBD><D1B9>
	zlib_best_speed = 1,    // ѹ<><D1B9><EFBFBD>ٶ<EFBFBD><D9B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѹ<EFBFBD><D1B9><EFBFBD><EFBFBD>
	zlib_level1 = zlib_best_speed,
	zlib_level2 = 2,
	zlib_level3 = 3,
	zlib_level4 = 4,
	zlib_level5 = 5,
	zlib_level6 = 6,
	zlib_level7 = 7,
	zlib_level8 = 8,
	zlib_best_compress = 9, // <20><><EFBFBD>ߵ<EFBFBD>ѹ<EFBFBD><D1B9><EFBFBD>ȣ<EFBFBD><C8A3><EFBFBD><EFBFBD>͵<EFBFBD>ѹ<EFBFBD><D1B9><EFBFBD>ٶ<EFBFBD>
	zlib_level9 = zlib_best_compress
} zlib_level_t;

/**
 * ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>ֵԽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD>Ч<EFBFBD><EFBFBD>Խ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>Խ<EFBFBD>࣬
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD> HTTP ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䣬<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щֵ<EFBFBD>ĸ<EFBFBD>ֵ<EFBFBD><EFBFBD>-zlib_wbits_t
 */
enum
{
	zlib_wbits_8  = 8,
	zlib_wbits_9  = 9,
	zlib_wbits_10 = 10,
	zlib_wbits_11 = 11,
	zlib_wbits_12 = 12,
	zlib_wbits_13 = 13,
	zlib_wbits_14 = 14,
	zlib_wbits_15 = 15,
};

/**
 * ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԣ<EFBFBD>ֵԽ<EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>Խ<EFBFBD><EFBFBD>
 */
typedef enum
{
	zlib_mlevel_1 = 1,
	zlib_mlevel_2 = 2,
	zlib_mlevel_3 = 3,
	zlib_mlevel_4 = 4,
	zlib_mlevel_5 = 5,
	zlib_mlevel_6 = 6,
	zlib_mlevel_7 = 7,
	zlib_mlevel_8 = 8,
	zlib_mlevel_9 = 9,
} zlib_mlevel_t;

/**
 * ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еĻ<EFBFBD><EFBFBD><EFBFBD>ģʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˢ<EFBFBD><EFBFBD>
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>˻<EFBFBD><EFBFBD>ñȽϸߵ<EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD>Ӧ<EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD> zlib_flush_off <EFBFBD><EFBFBD>ʽ
 */
typedef enum
{
	zlib_flush_off = 0,     // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˢ<EFBFBD><CBA2><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD>
	zlib_flush_partial = 1, // ˢ<>²<EFBFBD><C2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD>
	zlib_flush_sync = 2,    // ͬ<><CDAC>ˢ<EFBFBD><CBA2>
	zlib_flush_full = 3,    // <20><>ȫˢ<C8AB><CBA2>
	zlib_flush_finish = 4   // <20><>ȫˢ<C8AB>²<EFBFBD>ֹͣѹ<D6B9><D1B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѹ<EFBFBD><D1B9><EFBFBD><EFBFBD>
} zlib_flush_t;

class string;

class ACL_CPP_API zlib_stream : public pipe_stream
{
public:
	zlib_stream(void);
	~zlib_stream(void);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽѹ<EFBFBD><EFBFBD>
	 * @param in {const char*} Դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param len {int} Դ<EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><EFBFBD><EFBFBD>
	 * @param out {string*} <EFBFBD>洢ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param level {zlib_level_t} ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>𣬼<EFBFBD><EFBFBD><EFBFBD>Խ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Խ<EFBFBD>ߣ<EFBFBD>
	 *  <EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD>ٶ<EFBFBD>Խ<EFBFBD><EFBFBD>
	 * @return {bool} ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD>ɹ<EFBFBD>
	 */
	bool zlib_compress(const char* in, int len, string* out,
		zlib_level_t level = zlib_default);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD>
	 * @param in {const char*} Դѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param len {int} Դ<EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><EFBFBD><EFBFBD>
	 * @param out {string*} <EFBFBD>洢<EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param have_zlib_header {bool} <EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD> zlib_header ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  HTTP <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ý<EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD>Ϊ false
	 * @param wsize {int} <EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еĻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>С
	 * @return {bool} <EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD>ɹ<EFBFBD>
	 */
	bool zlib_uncompress(const char* in, int len, string* out,
		bool have_zlib_header = true, int wsize = 15);

	///////////////////////////////////////////////////////////////
	//
	//           <20><><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>ʽѹ<CABD><D1B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD>ѹ<EFBFBD><D1B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	//
	///////////////////////////////////////////////////////////////

	/**
	 * <EFBFBD><EFBFBD>ʼѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̣<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˳<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD>
	 * zip_begin->zip_update->zip_finish<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>м<EFBFBD><EFBFBD>κ<EFBFBD>һ<EFBFBD><EFBFBD>
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܣ<EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>õ<EFBFBD><EFBFBD><EFBFBD> zip_reset
	 * @param level {zlib_level_t} ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>𣬼<EFBFBD><EFBFBD><EFBFBD>Խ<EFBFBD>ߣ<EFBFBD><EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  Խ<EFBFBD>ߣ<EFBFBD><EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD>ٶ<EFBFBD>Խ<EFBFBD><EFBFBD>
	 * @param wbits {zlib_wbits_t} ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еĻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵԽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  ѹ<EFBFBD><EFBFBD>Ч<EFBFBD><EFBFBD>Խ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>Խ<EFBFBD>࣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD> HTTP <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䣬Ӧ<EFBFBD>ò<EFBFBD><EFBFBD>ø<EFBFBD>
	 *  ֵ<EFBFBD>ĸ<EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD>磺-zlib_wbits_15
	 * @param mlevel {zlib_mlevel_t} ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԣ<EFBFBD>ֵԽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  <EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD>Ч<EFBFBD><EFBFBD>Խ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>ʹ<EFBFBD><EFBFBD>Խ<EFBFBD><EFBFBD>
	 * @return {bool} ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܵ<EFBFBD>ԭ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>
	 *  Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD>
	 */
	bool zip_begin(zlib_level_t level = zlib_default,
		int wbits = zlib_wbits_15,
		zlib_mlevel_t mlevel = zlib_mlevel_9);

	/**
	 * ѭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô˺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD>ݽ<EFBFBD><EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD>
	 * @param in {const char*} Դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param len {int} Դ<EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><EFBFBD><EFBFBD>
	 * @param out {string*} <EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ú<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӷ<EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>
	 *  <EFBFBD>ṩ<EFBFBD>Ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>жϵ<EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  ǰ<EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><EFBFBD><EFBFBD>ɸú<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><EFBFBD>ȣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  ѡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> zlib_flush_t <EFBFBD>IJ<EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD>ش<EFBFBD>ȡ
	 *  <EFBFBD><EFBFBD><EFBFBD>еĽ<EFBFBD><EFBFBD><EFBFBD>
	 * @param flag {zlib_flush_t} ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݻ<EFBFBD><EFBFBD>巽ʽ
	 *  zlib_flush_off: <EFBFBD><EFBFBD><EFBFBD>ݽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˢ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *    zlib <EFBFBD>Ȿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˢ<EFBFBD>µķ<EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD>Ӷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ýϸߵ<EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  zlib_flush_partial: <EFBFBD><EFBFBD><EFBFBD>ݽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܻᲿ<EFBFBD><EFBFBD>ˢ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  zlib_flush_sync: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD>ˢ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  zlib_flush_full: <EFBFBD><EFBFBD> zlib <EFBFBD>⻺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݽ<EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD>ˢ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  zlib_flush_finish: <EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̽<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬʱ<EFBFBD>Ὣ
	 *    <EFBFBD><EFBFBD><EFBFBD>н<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˢ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ò<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>
	 *    <EFBFBD><EFBFBD><EFBFBD><EFBFBD> zip_finish <EFBFBD>󣬻<EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еĻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˢ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {bool} ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD>ʧ<EFBFBD><EFBFBD>
	 */
	bool zip_update(const char* in, int len, string* out,
		zlib_flush_t flag = zlib_flush_off);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̽<EFBFBD><EFBFBD><EFBFBD>
	 * @param out {string} <EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ú<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ὣ zlib <EFBFBD>⻺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵķ<EFBFBD>ʽ<EFBFBD><EFBFBD>ˢ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {bool} <EFBFBD>Ƿ<EFBFBD><EFBFBD>ɹ<EFBFBD>
	 */
	bool zip_finish(string* out);

	/**
	 * <EFBFBD>ж<EFBFBD>ѹ<EFBFBD><EFBFBD>/<EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD>Ѿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {bool}
	 */
	bool is_finished(void) const
	{
		return finished_;
	}

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ֻ<EFBFBD>е<EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̳<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>Ż<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {bool} <EFBFBD>Ƿ<EFBFBD><EFBFBD>ɹ<EFBFBD>
	 */
	bool zip_reset(void);

	/**
	 * <EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD>ʹ<EFBFBD>ô˺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD> crc32 У<EFBFBD><EFBFBD>ֵ
	 * @param n {unsigned} <EFBFBD>ϴμ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>д 0
	 * @param buf {const void*} <EFBFBD><EFBFBD>ҪУ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD>ʱд NULL
	 * @param dlen {size_t} buf <EFBFBD><EFBFBD><EFBFBD>ݵij<EFBFBD><EFBFBD>ȣ<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD>ʱд 0
	 * @return {unsinged} <EFBFBD><EFBFBD><EFBFBD>μ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
	 */
	unsigned crc32_update(unsigned n, const void* buf, size_t dlen);

	/**
	 * <EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̣<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˳<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD>
	 * unzip_begin->unzip_update->unzip_finish<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>м<EFBFBD><EFBFBD>κ<EFBFBD>һ<EFBFBD><EFBFBD>
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܣ<EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>õ<EFBFBD><EFBFBD><EFBFBD> unzip_reset
	 * @param have_zlib_header {bool} <EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD> zlib_header ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  HTTP <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ý<EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD>Ϊ false
	 * @param wsize {int} <EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еĻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>С
	 * @return {bool} <EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܵ<EFBFBD>ԭ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>
	 *  Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD>
	 */
	bool unzip_begin(bool have_zlib_header = true, int wsize = 15);

	/**
	 * ѭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô˺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD>ݽ<EFBFBD><EFBFBD>н<EFBFBD>ѹ<EFBFBD><EFBFBD>
	 * @param in {const char*} ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param len {int} Դ<EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><EFBFBD><EFBFBD>
	 * @param out {string*} <EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ú<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӷ<EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>
	 *  <EFBFBD>ṩ<EFBFBD>Ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽ<EFBFBD>ѹ<EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>жϵ<EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  ǰ<EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><EFBFBD><EFBFBD>ɸú<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><EFBFBD>ȣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  ѡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> zlib_flush_t <EFBFBD>IJ<EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD>ش<EFBFBD>ȡ
	 *  <EFBFBD><EFBFBD><EFBFBD>еĽ<EFBFBD><EFBFBD><EFBFBD>
	 * @param flag {zlib_flush_t} <EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݻ<EFBFBD><EFBFBD>巽ʽ
	 *  zlib_flush_off: <EFBFBD><EFBFBD><EFBFBD>ݽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˢ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *    zlib <EFBFBD>Ȿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˢ<EFBFBD>µķ<EFBFBD>ʽ
	 *  zlib_flush_partial: <EFBFBD><EFBFBD><EFBFBD>ݽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܻᲿ<EFBFBD><EFBFBD>ˢ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  zlib_flush_sync: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD>ˢ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  zlib_flush_full: <EFBFBD><EFBFBD> zlib <EFBFBD>⻺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݽ<EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD>ˢ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  zlib_flush_finish: <EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̽<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬʱ<EFBFBD>Ὣ
	 *    <EFBFBD><EFBFBD><EFBFBD>н<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˢ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ò<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>
	 *    <EFBFBD><EFBFBD><EFBFBD><EFBFBD> zip_finish <EFBFBD>󣬻<EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еĻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˢ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {bool} <EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD>ʧ<EFBFBD><EFBFBD>
	 */
	bool unzip_update(const char* in, int len, string* out,
		zlib_flush_t flag = zlib_flush_off);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̽<EFBFBD><EFBFBD><EFBFBD>
	 * @param out {string} <EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ú<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ὣ zlib <EFBFBD>⻺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵķ<EFBFBD>ʽ<EFBFBD><EFBFBD>ˢ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {bool} <EFBFBD>Ƿ<EFBFBD><EFBFBD>ɹ<EFBFBD>
	 */
	bool unzip_finish(string* out);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>ý<EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ֻ<EFBFBD>е<EFBFBD><EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̳<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>Ż<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {bool} <EFBFBD>Ƿ<EFBFBD><EFBFBD>ɹ<EFBFBD>
	 */
	bool unzip_reset(void);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD>ǰ<EFBFBD><EFBFBD> zstream <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {z_stream*}
	 */
	z_stream* get_zstream(void) const
	{
		return zstream_;
	}

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ö<EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD>ط<EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD>ض<EFBFBD>̬<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ô˺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ö<EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>ȫ·<EFBFBD><EFBFBD>
	 */
	static void set_loadpath(const char* path);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˶<EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ·<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ö<EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ·<EFBFBD><EFBFBD>
	 * @return {const char*} <EFBFBD><EFBFBD>δ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>򷵻<EFBFBD> NULL
	 */
	static const char* get_loadpath(void);

	/**
	 * <EFBFBD>ֶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ö<EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD> zlib <EFBFBD>ⷽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * <EFBFBD><EFBFBD><EFBFBD>⣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD> zlib <EFBFBD><EFBFBD>̬<EFBFBD>ⲻ<EFBFBD>ڳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ¼<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ȵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * set_loadpath() <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> zlib <EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ·<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * <EFBFBD>÷<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD>ͨ<EFBFBD><EFBFBD> pthread_once() <EFBFBD><EFBFBD>֤<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD>ʹͬʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * <EFBFBD>̵߳<EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD>ǰ<EFBFBD>ȫ<EFBFBD><EFBFBD>
	 * @return {bool} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD>ɹ<EFBFBD>
	 */
	static bool zlib_load_once(void);

	///////////////////////////////////////////////////////////////

	bool pipe_zip_begin(zlib_level_t level = zlib_default,
		zlib_flush_t flag = zlib_flush_off);
	bool pipe_unzip_begin(zlib_flush_t flag = zlib_flush_off);

	// pipe_stream <20>麯<EFBFBD><E9BAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>

	virtual int push_pop(const char* in, size_t len,
		string* out, size_t max = 0);
	virtual int pop_end(string* out, size_t max = 0);
	virtual void clear(void);

private:
	z_stream* zstream_;
	bool finished_;
	bool is_compress_;
	zlib_flush_t flush_;

	bool update(int (*func)(z_stream*, int), zlib_flush_t flag,
		const char* in, int len, string* out);
	bool flush_out(int (*func)(z_stream*, int),
		zlib_flush_t flag, string* out);
};

} // namespace acl