acl/lib_acl/include/stdlib/acl_vstream.h

#ifndef	ACL_VSTREAM_INCLUDE_H
#define	ACL_VSTREAM_INCLUDE_H

#ifdef  __cplusplus
extern "C" {
#endif

#include "acl_define.h"
#include <time.h>
#include <sys/types.h>

#ifdef	ACL_UNIX
#include <sys/time.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <fcntl.h>
#include <unistd.h>
#include <netinet/in.h>
#endif

#include "acl_array.h"
#include "acl_htable.h"
#include "acl_vstring.h"

#define	ACL_VSTREAM_EOF		(-1)		/* no more space or data */

#ifdef	ACL_UNIX

# ifndef	O_RDONLY
#  define	O_RDONLY	0
# endif
# ifndef	O_WRONLY
#  define	O_WRONLY	1
# endif
# ifndef	O_RDWR
#  define	O_RDWR		2
# endif
#endif

#define	ACL_VSTREAM_BUFSIZE	4096

typedef struct ACL_VSTREAM	ACL_VSTREAM;

typedef int (*ACL_VSTREAM_RD_FN)(ACL_SOCKET fd, void *buf, size_t size,
	int timeout, ACL_VSTREAM *fp, void *context);
typedef int (*ACL_VSTREAM_WR_FN)(ACL_SOCKET fd, const void *buf,
	size_t size, int timeout, ACL_VSTREAM *fp, void *context);
typedef int (*ACL_VSTREAM_WV_FN)(ACL_SOCKET fd, const struct iovec *vec,
	int count, int timeout, ACL_VSTREAM *fp, void *context);
typedef int (*ACL_FSTREAM_RD_FN)(ACL_FILE_HANDLE fh, void *buf, size_t size,
	int timeout, ACL_VSTREAM *fp, void *context);
typedef int (*ACL_FSTREAM_WR_FN)(ACL_FILE_HANDLE fh, const void *buf,
	size_t size, int timeout, ACL_VSTREAM *fp, void *context);
typedef int (*ACL_FSTREAM_WV_FN)(ACL_FILE_HANDLE fh, const struct iovec *vec,
	int count, int timeout, ACL_VSTREAM *fp, void *context);

/* <20><><EFBFBD>رջ<D8B1><D5BB>ͷ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ, <20><>Ҫ<EFBFBD>ص<EFBFBD>һЩ<D2BB>ͷź<CDB7><C5BA><EFBFBD>, <20>˽<EFBFBD><CBBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˸ûص<C3BB>
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ---add by zsx, 2006.6.20
 */
typedef struct ACL_VSTREAM_CLOSE_HANDLE {
	void (*close_fn)(ACL_VSTREAM*, void*);
	void *context;
} ACL_VSTREAM_CLOSE_HANDLE;

/* <20><><EFBFBD>ݶ<EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD>Ͷ<EFBFBD><CDB6><EFBFBD> */
struct ACL_VSTREAM {
	union {
		ACL_SOCKET      sock;   /**< the master socket */
		ACL_FILE_HANDLE h_file; /**< the file handle */
	} fd;

	int   is_nonblock;              /**< just for WINDOWS, because the ioctlsocket is too weak */
	int   type;                     /**< defined as: ACL_VSTREAM_TYPE_XXX */
#define	ACL_VSTREAM_TYPE_SOCK           (1 << 0)
#define	ACL_VSTREAM_TYPE_FILE           (1 << 1)
#define	ACL_VSTREAM_TYPE_LISTEN		(1 << 2)
#define	ACL_VSTREAM_TYPE_LISTEN_INET    (1 << 3)
#define	ACL_VSTREAM_TYPE_LISTEN_UNIX    (1 << 4)
#define ACL_VSTREAM_TYPE_LISTEN_IOCP    (1 << 5)

	acl_off_t offset;               /**< cached seek info */
	acl_off_t sys_offset;           /**< cached seek info */

	unsigned char *wbuf;            /**< used when call acl_vstream_buffed_writen */
	int   wbuf_size;                /**< used when call acl_vstream_buffed_writen */
	int   wbuf_dlen;                /**< used when call acl_vstream_buffed_writen */

	unsigned char *read_buf;        /**< read buff */
	int   read_buf_len;             /**< read_buf's capacity */
	int   read_cnt;                 /**< data's length in read_buf */
	unsigned char *read_ptr;        /**< pointer to next position in read_buf */
	int   read_ready;               /**< if the system buffer has some data */

	acl_off_t total_read_cnt;       /**< total read count of the fp */
	acl_off_t total_write_cnt;      /**< total write count of the fp */

	void *ioctl_read_ctx;           /**< only for acl_ioctl_xxx in acl_ioctl.c */
	void *ioctl_write_ctx;          /**< only for acl_ioctl_xxx in acl_ioctl.c */
	void *fdp;                      /**< only for event */

	unsigned int flag;              /**< defined as: ACL_VSTREAM_FLAG_XXX */
#define	ACL_VSTREAM_FLAG_READ           (1 << 0)
#define	ACL_VSTREAM_FLAG_WRITE          (1 << 1)
#define	ACL_VSTREAM_FLAG_RW             (1 << 2)
#define ACL_VSTREAM_FLAG_CACHE_SEEK     (1 << 3)
#define	ACL_VSTREAM_FLAG_DEFER_FREE	(1 << 4)	/**< <20>ӳٹر<D9B9> */

#define	ACL_VSTREAM_FLAG_ERR            (1 << 10)	/**< <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
#define	ACL_VSTREAM_FLAG_EOF            (1 << 11)	/**< <20><><EFBFBD><EFBFBD> */
#define	ACL_VSTREAM_FLAG_TIMEOUT        (1 << 12)	/**< <20><>ʱ */
#define	ACL_VSTREAM_FLAG_RDSHORT        (1 << 13)	/**< <20><><EFBFBD>IJ<EFBFBD><C4B2><EFBFBD> */
#define ACL_VSTREAM_FLAG_BAD  (ACL_VSTREAM_FLAG_ERR \
                               | ACL_VSTREAM_FLAG_EOF \
                               | ACL_VSTREAM_FLAG_TIMEOUT)
#define	ACL_VSTREAM_FLAG_CLIENT         (1 << 14)
#define	ACL_VSTREAM_FLAG_CONNECT        (1 << 15)
#define	ACL_VSTREAM_FLAG_SOCKPAIR       (1 << 16)

#define	ACL_VSTREAM_FLAG_TAGYES	        (1 << 17) /* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>ı<EFBFBD>־λ<D6BE><CEBB><EFBFBD><EFBFBD>λ */

#define	ACL_VSTREAM_FLAG_CONNECTING     (1 << 18) /* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӹ<EFBFBD><D3B9><EFBFBD><EFBFBD><EFBFBD> */
#define	ACL_VSTREAM_FLAG_PREREAD	(1 << 19) /* <20><><EFBFBD><EFBFBD> acl_vstream_can_read <20><><EFBFBD>ù<EFBFBD><C3B9><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD>Ԥ<EFBFBD><D4A4> */

	char  errbuf[128];              /**< error info */
	int   errnum;                   /**< record the system errno here */
	int   rw_timeout;               /**< read/write timeout */
	char *addr_local;               /**< the local addr of the fp */
	char *addr_peer;                /**< the peer addr of the fp */
	struct sockaddr *sa_local;      /**< for IPV4/IPV6/UNIX */
	struct sockaddr *sa_peer;       /**< for IPV4/IPV6/UNIX */
	size_t sa_local_size;
	size_t sa_peer_size;
	size_t sa_local_len;
	size_t sa_peer_len;
	char *path;                     /**< the path just for file operation */
	void *context;                  /**< the application's special data */

	ACL_ARRAY *close_handle_lnk;    /**< before this fp is free,
	                                 * function in close_handle_lnk
	                                 * will be called.
	                                 * add by zsx, 2006.6.20
	                                 */
	int (*sys_getc)(ACL_VSTREAM*);  /**< called by ACL_VSTREAM_GETC()/1 */
	ACL_VSTREAM_RD_FN read_fn;      /**< system socket read API */
	ACL_VSTREAM_WR_FN write_fn;     /**< system socket write API */
	ACL_VSTREAM_WV_FN writev_fn;    /**< system socket writev API */

	ACL_FSTREAM_RD_FN fread_fn;     /**< system file read API */
	ACL_FSTREAM_WR_FN fwrite_fn;    /**< system file write API */
	ACL_FSTREAM_WV_FN fwritev_fn;   /**< system file writev API */

	int (*close_fn)(ACL_SOCKET);    /**< system socket close API */
	int (*fclose_fn)(ACL_FILE_HANDLE);  /**< system file close API */

	unsigned int oflags;            /**< the system's open flags */
	/* general flags(ANSI):
	 * O_RDONLY: 0x0000, O_WRONLY: 0x0001, O_RDWR: 0x0002, O_APPEND: 0x0008,
	 * O_CREAT: 0x0100, O_TRUNC: 0x0200, O_EXCL: 0x0400;
	 * just for win32:
	 * O_TEXT: 0x4000, O_BINARY: 0x8000, O_RAW: O_BINARY,
	 * O_SEQUENTIAL: 0x0020, O_RANDOM: 0x0010.
	 */

	unsigned int omode;             /**< open mode, such as: 0600, 0777 */

	int   nrefer;                   /**< refer count, used for engine moudle */

#if defined(_WIN32) || defined(_WIN64)
	int   pid;
	HANDLE hproc;
	ACL_SOCKET iocp_sock;
#elif defined(ACL_UNIX)
	pid_t pid;
#endif
	ACL_HTABLE *objs_table;
};

extern ACL_API ACL_VSTREAM acl_vstream_fstd[];  /**< pre-defined streams */
#define ACL_VSTREAM_IN          (&acl_vstream_fstd[0]) /**< <20><>׼<EFBFBD><D7BC><EFBFBD><EFBFBD> */
#define ACL_VSTREAM_OUT         (&acl_vstream_fstd[1]) /**< <20><>׼<EFBFBD><D7BC><EFBFBD><EFBFBD> */
#define ACL_VSTREAM_ERR         (&acl_vstream_fstd[2]) /**< <20><>׼<EFBFBD><D7BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */

/*--------------------------------------------------------------------------*/
/**
 * <EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>ACL_VSTREAM<EFBFBD><EFBFBD><EFBFBD>ĺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>_WIN32<EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ñ<EFBFBD>׼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>ô˺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>г<EFBFBD>ʼ<EFBFBD><EFBFBD>
 */
ACL_API void acl_vstream_init(void);

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>: ̽<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>
 * @return ret {int}, ret > 0 OK; ret <= 0 Error
 * ע: <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׽<EFBFBD><EFBFBD><EFBFBD>
 */
ACL_API int acl_vstream_peekfd(ACL_VSTREAM *fp);

/**
 * <EFBFBD><EFBFBD>¡һ<EFBFBD><EFBFBD>ACL_VSTREAM<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ioctl_read_ctx, ioctl_write_ctx, fdp
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƕ<EFBFBD>̬<EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>µ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * <EFBFBD>ڴ<EFBFBD><EFBFBD>ҽ<EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD>ݽ<EFBFBD><EFBFBD>п<EFBFBD><EFBFBD><EFBFBD>
 * @param stream_src {ACL_VSTREAM*} Դ<EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
 * @return {ACL_VSTREAM*} Ŀ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
 */
ACL_API ACL_VSTREAM *acl_vstream_clone(const ACL_VSTREAM *stream_src);

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><EFBFBD>ú<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>趨<EFBFBD><EFBFBD><EFBFBD>ڸ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵĶ<EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD>رպ<EFBFBD><EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>
 * @param type {int} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>defined above: ACL_VSTREAM_TYPE_XXX
 * @return ret {int}, ret >= 0 OK; ret < 0 Error
 */
ACL_API int acl_vstream_set_fdtype(ACL_VSTREAM *fp, int type);

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param fh {ACL_FILE_HANDLE} <EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param oflags {unsigned int} <EFBFBD><EFBFBD>־λ, We're assuming that O_RDONLY: 0x0000,
 *  O_WRONLY: 0x0001, O_RDWR: 0x0002, O_APPEND: 0x0008, O_CREAT: 0x0100,
 *  O_TRUNC: 0x0200, O_EXCL: 0x0400; just for win32, O_TEXT: 0x4000,
 *  O_BINARY: 0x8000, O_RAW: O_BINARY, O_SEQUENTIAL: 0x0020, O_RANDOM: 0x0010.
 *  ͬʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @return {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
ACL_API ACL_VSTREAM *acl_vstream_fhopen(ACL_FILE_HANDLE fh, unsigned int oflags);

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param fd {ACL_SOCKET} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
 * @param oflags {unsigned int} <EFBFBD><EFBFBD>־λ, We're assuming that O_RDONLY: 0x0000,
 *  O_WRONLY: 0x0001, O_RDWR: 0x0002, O_APPEND: 0x0008, O_CREAT: 0x0100,
 *  O_TRUNC: 0x0200, O_EXCL: 0x0400; just for win32, O_TEXT: 0x4000,
 *  O_BINARY: 0x8000, O_RAW: O_BINARY, O_SEQUENTIAL: 0x0020, O_RANDOM: 0x0010.
 * @param buflen {size_t} <EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD>С
 * @param rw_timeo {int} <EFBFBD><EFBFBD>д<EFBFBD><EFBFBD>ʱʱ<EFBFBD><EFBFBD>(<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>λ)
 * @param fdtype {int} ACL_VSTREAM_TYPE_FILE, ACL_VSTREAM_TYPE_SOCK,
 *  ACL_VSTREAM_TYPE_LISTEN | ACL_VSTREAM_TYPE_LISTEN_INET | ACL_VSTREAM_TYPE_LISTEN_UNIX
 * @return ret {ACL_VSTREAM*}, ret == NULL: <EFBFBD><EFBFBD><EFBFBD><EFBFBD>, ret != NULL: OK
 */
ACL_API ACL_VSTREAM *acl_vstream_fdopen(ACL_SOCKET fd, unsigned int oflags,
		size_t buflen, int rw_timeo, int fdtype);

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param path {const char*} <EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>
 * @param oflags {unsigned int} <EFBFBD><EFBFBD>־λ, We're assuming that O_RDONLY: 0x0000,
 *  O_WRONLY: 0x0001, O_RDWR: 0x0002, O_APPEND: 0x0008, O_CREAT: 0x0100,
 *  O_TRUNC: 0x0200, O_EXCL: 0x0400; just for win32, O_TEXT: 0x4000,
 *  O_BINARY: 0x8000, O_RAW: O_BINARY, O_SEQUENTIAL: 0x0020, O_RANDOM: 0x0010.
 * @param mode {int} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ģʽ(<EFBFBD><EFBFBD>: 0600)
 * @param buflen {size_t} <EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD>С
 * @return ret {ACL_VSTREAM*}, ret== NULL: <EFBFBD><EFBFBD><EFBFBD><EFBFBD>, ret != NULL: OK
 */
ACL_API ACL_VSTREAM *acl_vstream_fopen(const char *path, unsigned int oflags,
		int mode, size_t buflen);

/**
 * <EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD>
 * @param path {const char*} <EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD>: /opt/acl/conf/service/test.cf
 * @return {char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>ȫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵĻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> acl_myfree
 *  <EFBFBD>ͷŸ<EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD>
 */
ACL_API char *acl_vstream_loadfile(const char *path);

/**
 * <EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD>
 * @param path {const char*} <EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD>: /opt/acl/conf/service/test.cf
 * @param size {ssize_t*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǿգ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD>洢<EFBFBD><EFBFBD><EFBFBD>صĻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD>ᱻ<EFBFBD><EFBFBD> -1
 * @return {char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>ȫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵĻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> acl_myfree
 *  <EFBFBD>ͷŸ<EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD>
 */
ACL_API char *acl_vstream_loadfile2(const char *path, ssize_t *size);

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
 * @param name {int} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õIJ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еĵ<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,
 *  defined as ACL_VSTREAM_CTL_
 */
ACL_API void acl_vstream_ctl(ACL_VSTREAM *fp, int name,...);
#define ACL_VSTREAM_CTL_END         0
#define ACL_VSTREAM_CTL_READ_FN     1
#define ACL_VSTREAM_CTL_WRITE_FN    2
#define ACL_VSTREAM_CTL_PATH        3
#define ACL_VSTREAM_CTL_FD          4
#define ACL_VSTREAM_CTL_TIMEOUT     5
#define ACL_VSTREAM_CTL_CONTEXT     6
#define	ACL_VSTREAM_CTL_CTX         ACL_VSTREAM_CTL_CONTEXT
#define ACL_VSTREAM_CTL_CACHE_SEEK  7

/**
 * <EFBFBD><EFBFBD>λ<EFBFBD>ļ<EFBFBD>ָ<EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
 * @param offset {acl_off_t} ƫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param whence {int} ƫ<EFBFBD>Ʒ<EFBFBD><EFBFBD><EFBFBD>, SEEK_SET, SEEK_CUR, SEEK_END
 * @return ret {acl_off_t}, ret >= 0: <EFBFBD><EFBFBD>ȷ, ret < 0: <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * ע<EFBFBD><EFBFBD> acl_vstream_fseek() Ч<EFBFBD>ʸ<EFBFBD><EFBFBD><EFBFBD>Щ, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˻<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD><EFBFBD>,
 *      <EFBFBD>ұ<EFBFBD> acl_vstream_fseek2() <EFBFBD>ٵ<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD> lseek() ϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
 */
ACL_API acl_off_t acl_vstream_fseek(ACL_VSTREAM *fp, acl_off_t offset, int whence);

/**
 * <EFBFBD><EFBFBD>λ<EFBFBD>ļ<EFBFBD>ָ<EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
 * @param offset {acl_off_t} ƫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param whence {int} <EFBFBD>ƶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>SEEK_SET<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>ʼλ<EFBFBD>ú<EFBFBD><EFBFBD>ƶ<EFBFBD><EFBFBD><EFBFBD>,
 *  SEEK_CUR<EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD>ǰ<EFBFBD>ļ<EFBFBD>ָ<EFBFBD><EFBFBD>λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD><EFBFBD><EFBFBD>, SEEK_END<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>β<EFBFBD><EFBFBD>ǰ<EFBFBD>ƶ<EFBFBD><EFBFBD><EFBFBD>
 * @return ret {acl_off_t}, ret >= 0: <EFBFBD><EFBFBD>ȷ, ret < 0: <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @deprecated <EFBFBD>ú<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD>ʽϵ<EFBFBD>
 */
ACL_API acl_off_t acl_vstream_fseek2(ACL_VSTREAM *fp, acl_off_t offset, int whence);

/**
 * <EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD>ǰ<EFBFBD>ļ<EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
 * @return {acl_off_t} <EFBFBD><EFBFBD>ǰ<EFBFBD>ļ<EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><EFBFBD>, -1 <EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
ACL_API acl_off_t acl_vstream_ftell(ACL_VSTREAM *fp);

/**
 * <EFBFBD><EFBFBD>Դ<EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>̽ض<EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
 * @param length {acl_off_t} <EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><EFBFBD><EFBFBD>(>=0)
 * @return {int} 0: ok, -1: error
 */
ACL_API int acl_file_ftruncate(ACL_VSTREAM *fp, acl_off_t length);

/**
 * <EFBFBD><EFBFBD>Դ<EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>̽ض<EFBFBD>
 * @param path {const char*} <EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>(<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD>)
 * @param length {acl_off_t} <EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><EFBFBD><EFBFBD>(>=0)
 * @return {int} 0: ok, -1: error
 */
ACL_API int acl_file_truncate(const char *path, acl_off_t length);

/**
 * <EFBFBD>鿴һ<EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM *} <EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param buf {acl_stat *} <EFBFBD>洢<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľṹ<EFBFBD><EFBFBD>ַ
 * @return {int} 0: ok; -1: error
 */
ACL_API int acl_vstream_fstat(ACL_VSTREAM *fp, struct acl_stat *buf);

/**
 * <EFBFBD>鿴һ<EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD>Ĵ<EFBFBD>С
 * @param fp {ACL_VSTREAM *} <EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @return {int} >= 0: ok;  -1: error
 */
ACL_API acl_int64 acl_vstream_fsize(ACL_VSTREAM *fp);

/**
 * <EFBFBD><EFBFBD>fp <EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>ȡһ<EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
 * @return {int} ACL_VSTREAM_EOF(<EFBFBD><EFBFBD><EFBFBD><EFBFBD>) <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD>ֽڵ<EFBFBD>ASCII
 *  <EFBFBD><EFBFBD>Ϊ ACL_VSTREAM_EOF: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Է<EFBFBD><EFBFBD>ر<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, Ӧ<EFBFBD>ùرո<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
ACL_API int acl_vstream_getc(ACL_VSTREAM *fp);
#define	acl_vstream_get_char	acl_vstream_getc

/**
 * <EFBFBD><EFBFBD> fp <EFBFBD><EFBFBD><EFBFBD>з<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ size <EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
 * @param buf {char*} <EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ滺<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param size {int} buf <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀռ<EFBFBD><EFBFBD><EFBFBD>С
 * @return {int} <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD> n, <EFBFBD><EFBFBD><EFBFBD><EFBFBD> n == ACL_VSTREAM_EOF <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 *         n >= 0 <EFBFBD><EFBFBD>ȷ.
 */
ACL_API int acl_vstream_nonb_readn(ACL_VSTREAM *fp, char *buf, int size);

/**
 * <EFBFBD>ж<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD>Ѿ<EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD>ر<EFBFBD><EFBFBD>ˣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>
 * <EFBFBD>ú<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD>Ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ֽڣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD>Ƿ<EFBFBD>socket<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD>
 * <EFBFBD>رգ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD>ȡһ<EFBFBD><EFBFBD><EFBFBD>ֽڣ<EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD>socket<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݷŻػ<EFBFBD><EFBFBD><EFBFBD>
 * <EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ACL_VSTREAM_EOF, <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>жϴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ񱻹ر<EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
 * @return {int}, 0 ˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>socket<EFBFBD><EFBFBD><EFBFBD><EFBFBD>; -1 <EFBFBD><EFBFBD>socket<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD>ر<EFBFBD>
 */
ACL_API int acl_vstream_probe_status(ACL_VSTREAM *fp);

/**
 * <EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD>Ż<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
 * @param ch {int} <EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD> ASCII <EFBFBD><EFBFBD> 
 * @return {int} <EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD> ASCII <EFBFBD><EFBFBD>, <EFBFBD>ú<EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 *  core <EFBFBD>ļ<EFBFBD>.
 */
ACL_API int acl_vstream_ungetc(ACL_VSTREAM *fp, int ch);

/**
 * <EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݷŻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
 * @param ptr {const void *} <EFBFBD><EFBFBD>Ҫ<EFBFBD>Ż<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>ַ
 * @param length {size_t} <EFBFBD><EFBFBD>Ҫ<EFBFBD>Ż<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵij<EFBFBD><EFBFBD><EFBFBD>
 * @return {int} <EFBFBD><EFBFBD><EFBFBD>ɹ<EFBFBD><EFBFBD>Ż<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><EFBFBD><EFBFBD>, Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 *  ʧ<EFBFBD>ܶ<EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> core <EFBFBD>ļ<EFBFBD>!
 */
ACL_API int acl_vstream_unread(ACL_VSTREAM *fp, const void *ptr, size_t length);

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>ȡһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, ֱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>  "\n" <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊֹ, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>°<EFBFBD><EFBFBD><EFBFBD> "\n"
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param vptr {void*} <EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ滺<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
 * @param maxlen {size_t} vptr <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD>С
 * @return  ret {int}, ret == ACL_VSTREAM_EOF:  <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Է<EFBFBD><EFBFBD>ر<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, 
 *  Ӧ<EFBFBD>ùرձ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>; n > 0:  <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> n <EFBFBD><EFBFBD><EFBFBD>ֽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> n <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> 0 <EFBFBD>ַ<EFBFBD>Ϊ "\n" <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> n
 *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD><EFBFBD>Է<EFBFBD>δ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> "\n" <EFBFBD>͹ر<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 *  (fp->flag & ACL_VSTREAM_FLAG_TAGYES)
 *	<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 0 <EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> "\n", <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 0 <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> "\n".
 */
ACL_API int acl_vstream_gets(ACL_VSTREAM *fp, void *vptr, size_t maxlen);
#define	acl_vstream_readline	acl_vstream_gets
#define	acl_vstream_fgets	acl_vstream_gets

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>ȡһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, ֱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> "\n" <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊֹ, <EFBFBD><EFBFBD><EFBFBD>صĽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>в<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> "\n"
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
 * @param vptr {void*} <EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ滺<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
 * @param maxlen {size_t} vptr <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD>С
 * @return ret {int}, ret == ACL_VSTREAM_EOF:  <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Է<EFBFBD><EFBFBD>ر<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,
 *  Ӧ<EFBFBD>ùرձ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, n == 0: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݽ<EFBFBD><EFBFBD><EFBFBD> "\r\n",
 *  n > 0:  <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> n <EFBFBD><EFBFBD><EFBFBD>ֽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
 */
ACL_API int acl_vstream_gets_nonl(ACL_VSTREAM *fp, void *vptr, size_t maxlen);

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
 * @param vptr {void*} <EFBFBD><EFBFBD><EFBFBD>ݴ洢<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param maxlen {size_t} vptr <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С
 * @param tag {const char*} <EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>־
 * @param taglen {size_t} tag <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵij<EFBFBD><EFBFBD>ȴ<EFBFBD>С
 * @return ret {int}, ret == ACL_VSTREAM_EOF:  <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Է<EFBFBD><EFBFBD>ر<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, 
 *  Ӧ<EFBFBD>ùرձ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, n > 0:  <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> n <EFBFBD><EFBFBD><EFBFBD>ֽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD>
 *  <EFBFBD><EFBFBD>־<EFBFBD><EFBFBD>, <EFBFBD><EFBFBD> fp <EFBFBD><EFBFBD><EFBFBD><EFBFBD> (fp->flag & ACL_VSTREAM_FLAG_TAGYES) <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 0.
 */
ACL_API int acl_vstream_readtags(ACL_VSTREAM *fp, void *vptr, size_t maxlen,
		const char *tag, size_t taglen);

/**
 * ѭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ maxlen <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, ֱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> maxlen <EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD>Ϊֹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param vptr {void*} <EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ
 * @param maxlen {size_t} vptr <EFBFBD><EFBFBD><EFBFBD>ݻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀռ<EFBFBD><EFBFBD><EFBFBD>С
 * @return ret {int}, ret == ACL_VSTREAM_EOF:  <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Է<EFBFBD><EFBFBD>ر<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, Ӧ<EFBFBD><EFBFBD>
 *  <EFBFBD>رձ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> n > 0:  <EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD> maxlen <EFBFBD><EFBFBD><EFBFBD>ֽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ʶ<EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> maxlen <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD>ش<EFBFBD><EFBFBD><EFBFBD>(ACL_VSTREAM_EOF)
 */
ACL_API int acl_vstream_readn(ACL_VSTREAM *fp, void *vptr, size_t maxlen);

/**
 * <EFBFBD><EFBFBD> fp <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> vptr <EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param vptr {void*} <EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ
 * @param maxlen {size_t} vptr <EFBFBD><EFBFBD><EFBFBD>ݻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀռ<EFBFBD><EFBFBD><EFBFBD>С
 * @return ret {int}, ret == ACL_VSTREAM_EOF: <EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, Ӧ<EFBFBD>ùرձ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,
 *  ret >= 0: <EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD> fp <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>ȡ<EFBFBD><EFBFBD> ret <EFBFBD><EFBFBD><EFBFBD>ֽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
ACL_API int acl_vstream_bfcp_some(ACL_VSTREAM *fp, void *vptr, size_t maxlen);

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD>ȡ n <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD> n <EFBFBD>п<EFBFBD><EFBFBD>ܻ<EFBFBD>С<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD> maxlen
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
 * @param vptr {void*} <EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ
 * @param maxlen {size_t} vptr <EFBFBD><EFBFBD><EFBFBD>ݻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀռ<EFBFBD><EFBFBD><EFBFBD>С
 * @return ret {int}, ret == ACL_VSTREAM_EOF: <EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, Ӧ<EFBFBD>ùرձ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,
 *  ret > 0:  <EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ret <EFBFBD><EFBFBD><EFBFBD>ֽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 *  ע: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD>ֱ<EFBFBD>Ӱѻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݸ<EFBFBD><EFBFBD>Ƶ<EFBFBD><EFBFBD>û<EFBFBD><EFBFBD>Ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><EFBFBD>ֱ<EFBFBD>ӷ<EFBFBD><EFBFBD><EFBFBD>;
 *     <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(<EFBFBD>п<EFBFBD><EFBFBD>ܻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>), <EFBFBD><EFBFBD>
 *     <EFBFBD>ε<EFBFBD><EFBFBD>÷<EFBFBD><EFBFBD>غ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ѷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݸ<EFBFBD><EFBFBD>Ƶ<EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
 *     <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¶<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܱ<EFBFBD>֤<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 *     <EFBFBD>ֽں<EFBFBD><EFBFBD>ŷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> vstream_loop_readn() <EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
 */
ACL_API int acl_vstream_read(ACL_VSTREAM *fp, void *vptr, size_t maxlen);

/**
 * һ<EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD> ACL_VSTREAM <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>ȡһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>س<EFBFBD><EFBFBD><EFBFBD><EFBFBD>з<EFBFBD>
 * (<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>н<EFBFBD><EFBFBD><EFBFBD>WINDOWS<EFBFBD><EFBFBD>UNIX<EFBFBD><EFBFBD><EFBFBD>ڻس<EFBFBD><EFBFBD><EFBFBD><EFBFBD>еļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>), <EFBFBD><EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * <EFBFBD>س<EFBFBD><EFBFBD><EFBFBD><EFBFBD>з<EFBFBD>, Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ滺<EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
 * @param buf {ACL_VSTRING*} <EFBFBD><EFBFBD><EFBFBD>ݻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> buf->maxlen > 0 ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 *  <EFBFBD>ij<EFBFBD><EFBFBD>ȣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> buf <EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><EFBFBD>ȴﵽ maxlen ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹû<EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD><EFBFBD>
 *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD>᷵<EFBFBD>أ<EFBFBD><EFBFBD>һὫ ready <EFBFBD><EFBFBD> 1<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> fp->flag <EFBFBD><EFBFBD>־λ<EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 *  ACL_VSTREAM_FLAG_TAGYES <EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param ready {int*} <EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵı<EFBFBD>־λָ<EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>
 * @return ret {int}, ret == ACL_VSTREAM_EOF: <EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, Ӧ<EFBFBD>ùرձ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,
 *  ret >= 0: <EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD> fp <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>ȡ<EFBFBD><EFBFBD> ret <EFBFBD><EFBFBD><EFBFBD>ֽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
ACL_API int acl_vstream_gets_peek(ACL_VSTREAM *fp, ACL_VSTRING *buf, int *ready);

/**
 * һ<EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD> ACL_VSTREAM <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>ȡһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>س<EFBFBD><EFBFBD><EFBFBD><EFBFBD>з<EFBFBD>,
 * Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ滺<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>س<EFBFBD><EFBFBD><EFBFBD><EFBFBD>з<EFBFBD><EFBFBD>㽫<EFBFBD>س<EFBFBD><EFBFBD><EFBFBD><EFBFBD>з<EFBFBD><EFBFBD>Զ<EFBFBD>ȥ<EFBFBD><EFBFBD>,
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>س<EFBFBD><EFBFBD><EFBFBD><EFBFBD>з<EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD>.
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
 * @param buf {ACL_VSTRING*} <EFBFBD><EFBFBD><EFBFBD>ݻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> buf->maxlen > 0 ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 *  <EFBFBD>ij<EFBFBD><EFBFBD>ȣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> buf <EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><EFBFBD>ȴﵽ maxlen ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹû<EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD><EFBFBD>
 *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD>᷵<EFBFBD>أ<EFBFBD><EFBFBD>һὫ ready <EFBFBD><EFBFBD> 1<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> fp->flag <EFBFBD><EFBFBD>־λ<EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 *  ACL_VSTREAM_FLAG_TAGYES <EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param ready {int*} <EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵı<EFBFBD>־λָ<EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>
 * @return ret {int}, ret == ACL_VSTREAM_EOF: <EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, Ӧ<EFBFBD>ùرձ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,
 *  ret >= 0: <EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD> fp <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>ȡ<EFBFBD><EFBFBD> ret <EFBFBD><EFBFBD><EFBFBD>ֽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD> ret == 0.
 */
ACL_API int acl_vstream_gets_nonl_peek(ACL_VSTREAM *fp, ACL_VSTRING *buf, int *ready);

/**
 * һ<EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD> ACL_VSTREAM <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>ȡ<EFBFBD>̶<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>, Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD>ڴ滺<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD> ready <EFBFBD><EFBFBD>־λ<EFBFBD><EFBFBD>λ.
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
 * @param buf {ACL_VSTRING*} <EFBFBD><EFBFBD><EFBFBD>ݻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param cnt {int} <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵij<EFBFBD><EFBFBD><EFBFBD>
 * @param ready {int*} <EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵı<EFBFBD>־λָ<EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>
 * @return ret {int}, ret == ACL_VSTREAM_EOF: <EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, Ӧ<EFBFBD>ùرձ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,
 *  ret >= 0: <EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD> fp <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>ȡ<EFBFBD><EFBFBD> ret <EFBFBD><EFBFBD><EFBFBD>ֽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, 
 *  (*ready) != 0: <EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>󳤶ȵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
 */
ACL_API int acl_vstream_readn_peek(ACL_VSTREAM *fp, ACL_VSTRING *buf, int cnt, int *ready);

/**
 * һ<EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD> ACL_VSTREAM <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD>̶<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,
 * ֻҪ<EFBFBD>ܶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 0 <EFBFBD><EFBFBD><EFBFBD>ֽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ready <EFBFBD><EFBFBD>־λ<EFBFBD><EFBFBD>λ
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
 * @param buf {ACL_VSTRING*} <EFBFBD><EFBFBD><EFBFBD>ݻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @return  ret {int}, ret == ACL_VSTREAM_EOF: <EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, Ӧ<EFBFBD>ùرձ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,
 *  ret >= 0: <EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD> fp <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>ȡ<EFBFBD><EFBFBD> ret <EFBFBD><EFBFBD><EFBFBD>ֽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
 */
ACL_API int acl_vstream_read_peek(ACL_VSTREAM *fp, ACL_VSTRING *buf);

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD> ACL_VSTREAM <EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD>ɶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
 * @return {int} 0: <EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿɶ<EFBFBD>; ACL_VSTREAM_EOF <EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>; > 0 <EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿɶ<EFBFBD>
 */
ACL_API int acl_vstream_can_read(ACL_VSTREAM *fp);

/**
 * <EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݶ<EFBFBD>ֱ<EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӳ<EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
 * @return {int} 0: ok; ACL_VSTREAM_EOF: error
 */
ACL_API int acl_vstream_fsync(ACL_VSTREAM *fp);

/**
 * <EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>巽ʽ<EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD>ú<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><EFBFBD>ǿ<EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
ACL_API void acl_vstream_buffed_space(ACL_VSTREAM *fp);

/**
 * ˢ<EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param fp: socket <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @return ˢ<EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ACL_VSTREAM_EOF
 */
ACL_API int acl_vstream_fflush(ACL_VSTREAM *fp);

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽд
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param vptr {const void*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼλ<EFBFBD><EFBFBD>
 * @param dlen {size_t} Ҫд<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @return {int} д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ACL_VSTREAM_EOF
 */
ACL_API int acl_vstream_buffed_writen(ACL_VSTREAM *fp, const void *vptr, size_t dlen);
#define	acl_vstream_buffed_fwrite	acl_vstream_buffed_writen

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> vfprintf()
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
 * @param fmt {const char*} <EFBFBD><EFBFBD><EFBFBD>ݸ<EFBFBD>ʽ
 * @param ap {va_list}
 * @return ret {int}, ret == ACL_VSTREAM_EOF: <EFBFBD><EFBFBD>ʾд<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, Ӧ<EFBFBD>ùرձ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,
 *  ret > 0:  <EFBFBD><EFBFBD>ʾ<EFBFBD>ɹ<EFBFBD>д<EFBFBD><EFBFBD> dlen <EFBFBD><EFBFBD><EFBFBD>ֽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
ACL_API int acl_vstream_buffed_vfprintf(ACL_VSTREAM *fp, const char *fmt, va_list ap);

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> fprintf()
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
 * @param fmt {const char*} <EFBFBD><EFBFBD><EFBFBD>ݸ<EFBFBD>ʽ 
 * @param ... <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @return ret {int}, ret == ACL_VSTREAM_EOF: <EFBFBD><EFBFBD>ʾд<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, Ӧ<EFBFBD>ùرձ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,
 *  ret > 0:  <EFBFBD><EFBFBD>ʾ<EFBFBD>ɹ<EFBFBD>д<EFBFBD><EFBFBD> dlen <EFBFBD><EFBFBD><EFBFBD>ֽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
ACL_API int ACL_PRINTF(2, 3) acl_vstream_buffed_fprintf(ACL_VSTREAM *fp,
	const char *fmt, ...);

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>׼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӡ<EFBFBD><EFBFBD>Ϣ
 * @param fmt {const char*} <EFBFBD><EFBFBD><EFBFBD>ݸ<EFBFBD>ʽ 
 * @param ... <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @return {int}, ACL_VSTREAM_EOF: <EFBFBD><EFBFBD>ʾд<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, > 0:  <EFBFBD><EFBFBD>ʾ<EFBFBD>ɹ<EFBFBD>д<EFBFBD><EFBFBD> dlen <EFBFBD><EFBFBD><EFBFBD>ֽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
ACL_API int acl_vstream_buffed_printf(const char*, ...);

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param s {const char*} Դ<EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @return {int} 0 <EFBFBD>ɹ<EFBFBD>; ACL_VSTREAM_EOF ʧ<EFBFBD><EFBFBD>
 */
ACL_API int acl_vstream_buffed_fputs(const char *s, ACL_VSTREAM *fp);

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>׼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param s {const char*} Դ<EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>
 * @return {int} 0 <EFBFBD>ɹ<EFBFBD>; ACL_VSTREAM_EOF ʧ<EFBFBD><EFBFBD>
 */
ACL_API int acl_vstream_buffed_puts(const char *s);

/**
* һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD>.
* @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
* @param vptr {const void*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ
* @param dlen {int} <EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><EFBFBD><EFBFBD>
* @return ret {int}, ret == ACL_VSTREAM_EOF: <EFBFBD><EFBFBD>ʾд<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, Ӧ<EFBFBD>ùرձ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,
*  ret > 0:  <EFBFBD><EFBFBD>ʾ<EFBFBD>ɹ<EFBFBD>д<EFBFBD><EFBFBD> ret <EFBFBD><EFBFBD><EFBFBD>ֽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
ACL_API int acl_vstream_write(ACL_VSTREAM *fp, const void *vptr, int dlen);

/**
 * һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> writev ģʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*}
 * @param vector {const struct iovec*}
 * @param count {int} vector <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD>
 * @return {int} <EFBFBD><EFBFBD><EFBFBD>سɹ<EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>򷵻<EFBFBD> ACL_VSTREAM_EOF
 */
ACL_API int acl_vstream_writev(ACL_VSTREAM *fp, const struct iovec *vector, int count);

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD> writev ģʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD>ֱ<EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD>Ϊֹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*}
 * @param vector {const struct iovec*}
 * @param count {int} vector <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD>
 * @return {int} <EFBFBD><EFBFBD><EFBFBD>سɹ<EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>򷵻<EFBFBD> ACL_VSTREAM_EOF
 */
ACL_API int acl_vstream_writevn(ACL_VSTREAM *fp, const struct iovec *vector, int count);

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> vfprintf()
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
 * @param fmt {const char*} <EFBFBD><EFBFBD><EFBFBD>ݸ<EFBFBD>ʽ
 * @param ap {va_list}
 * @return ret {int}, ret == ACL_VSTREAM_EOF: <EFBFBD><EFBFBD>ʾд<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, Ӧ<EFBFBD>ùرձ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,
 *  ret > 0:  <EFBFBD><EFBFBD>ʾ<EFBFBD>ɹ<EFBFBD>д<EFBFBD><EFBFBD> dlen <EFBFBD><EFBFBD><EFBFBD>ֽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
ACL_API int acl_vstream_vfprintf(ACL_VSTREAM *fp, const char *fmt, va_list ap);

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> fprintf()
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
 * @param fmt {const char*} <EFBFBD><EFBFBD><EFBFBD>ݸ<EFBFBD>ʽ 
 * @param ... <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @return ret {int}, ret == ACL_VSTREAM_EOF: <EFBFBD><EFBFBD>ʾд<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, Ӧ<EFBFBD>ùرձ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,
 *  ret > 0:  <EFBFBD><EFBFBD>ʾ<EFBFBD>ɹ<EFBFBD>д<EFBFBD><EFBFBD> dlen <EFBFBD><EFBFBD><EFBFBD>ֽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
ACL_API int ACL_PRINTF(2, 3) acl_vstream_fprintf(ACL_VSTREAM *fp,
	const char *fmt, ...);

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>׼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӡ<EFBFBD><EFBFBD>Ϣ
 * @param fmt {const char*} <EFBFBD><EFBFBD><EFBFBD>ݸ<EFBFBD>ʽ 
 * @param ... <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @return {int}, ACL_VSTREAM_EOF: <EFBFBD><EFBFBD>ʾд<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, > 0:  <EFBFBD><EFBFBD>ʾ<EFBFBD>ɹ<EFBFBD>д<EFBFBD><EFBFBD> dlen <EFBFBD><EFBFBD><EFBFBD>ֽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
ACL_API int acl_vstream_printf(const char*, ...);

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param s {const char*} Դ<EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @return {int} 0 <EFBFBD>ɹ<EFBFBD>; ACL_VSTREAM_EOF ʧ<EFBFBD><EFBFBD>
 */
ACL_API int acl_vstream_fputs(const char *s, ACL_VSTREAM *fp);

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>׼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param s {const char*} Դ<EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>
 * @return {int} 0 <EFBFBD>ɹ<EFBFBD>; ACL_VSTREAM_EOF ʧ<EFBFBD><EFBFBD>
 */
ACL_API int acl_vstream_puts(const char *s);

/**
 * ѭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д dlen <EFBFBD><EFBFBD><EFBFBD>ֽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊֹ
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
 * @param vptr {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ
 * @param dlen {size_t} <EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><EFBFBD><EFBFBD>
 * @return ret {int}, ret == ACL_VSTREAM_EOF: <EFBFBD><EFBFBD>ʾд<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, Ӧ<EFBFBD>ùرձ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,
 *  ret > 0:  <EFBFBD><EFBFBD>ʾ<EFBFBD>ɹ<EFBFBD>д<EFBFBD><EFBFBD> dlen <EFBFBD><EFBFBD><EFBFBD>ֽڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
ACL_API int acl_vstream_writen(ACL_VSTREAM *fp, const void *vptr, size_t dlen);
#define	acl_vstream_fwrite	acl_vstream_writen

/**
 * <EFBFBD>ͷ<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD>ռ<EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ر<EFBFBD> socket <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
ACL_API void acl_vstream_free(ACL_VSTREAM *fp);

/**
 * <EFBFBD>ͷ<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD>ռ䲢<EFBFBD>ر<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Я<EFBFBD><EFBFBD><EFBFBD><EFBFBD> socket <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
ACL_API int acl_vstream_close(ACL_VSTREAM *fp);
#define	acl_vstream_fclose	acl_vstream_close

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD>йرջص<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щ<EFBFBD>ص<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
ACL_API void acl_vstream_call_close_handles(ACL_VSTREAM *fp);

/**
 * ע<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>رպ<EFBFBD><EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param close_fn {void (*)(ACL_VSTREAM*, void*)} <EFBFBD>رպ<EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
 * @param context {void*} close_fn <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>IJ<EFBFBD><EFBFBD><EFBFBD>
 */
ACL_API void acl_vstream_add_close_handle(ACL_VSTREAM *fp,
		void (*close_fn)(ACL_VSTREAM*, void*), void *context);

/**
 * ɾ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>رվ<EFBFBD><EFBFBD><EFBFBD>.
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param close_fn {void (*)(ACL_VSTREAM*, void*)} <EFBFBD>رպ<EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
 * @param context {void*} close_fn <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>IJ<EFBFBD><EFBFBD><EFBFBD>
 */
ACL_API void acl_vstream_delete_close_handle(ACL_VSTREAM *fp,
		void (*close_fn)(ACL_VSTREAM*, void*), void *context);
/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еĹرվ<EFBFBD><EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
ACL_API void acl_vstream_clean_close_handle(ACL_VSTREAM *fp);

/**
 * <EFBFBD><EFBFBD><EFBFBD>¸<EFBFBD>λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>뼰<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
ACL_API void acl_vstream_reset(ACL_VSTREAM *fp);

/**
 * ȡ<EFBFBD>õ<EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><EFBFBD><EFBFBD>״̬
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @return {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
ACL_API const char *acl_vstream_strerror(ACL_VSTREAM *fp);

/*-----------------------  <20><><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>õĺ꺯<C4BA><EABAAF> ------------------------------*/
/**
 * <EFBFBD><EFBFBD>fp <EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>ȡһ<EFBFBD><EFBFBD><EFBFBD>ֽڵĺ<EFBFBD>ʵ<EFBFBD>֣<EFBFBD>Ч<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD> acl_vstream_getc()/1 <EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
 * @return {int} ACL_VSTREAM_EOF(<EFBFBD><EFBFBD><EFBFBD><EFBFBD>) <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD>ֽڵ<EFBFBD>ASCII,
 *  <EFBFBD><EFBFBD>Ϊ ACL_VSTREAM_EOF: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Է<EFBFBD><EFBFBD>ر<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, Ӧ<EFBFBD>ùرո<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
#define ACL_VSTREAM_GETC(stream_ptr) (                        \
    (stream_ptr)->read_cnt > 0 ?                              \
        (stream_ptr)->read_cnt--,                             \
        (stream_ptr)->offset++,                               \
        *(stream_ptr)->read_ptr++:                            \
        (stream_ptr)->sys_getc((stream_ptr)))

/**
 * <EFBFBD><EFBFBD> fp <EFBFBD><EFBFBD><EFBFBD><EFBFBD>дһ<EFBFBD><EFBFBD><EFBFBD>ֽڵĺ<EFBFBD>ʵ<EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
 * @return {int} ACL_VSTREAM_EOF(<EFBFBD><EFBFBD><EFBFBD><EFBFBD>) <EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD>ֽڵ<EFBFBD> ASCII
 */
#define ACL_VSTREAM_PUTC(ch, stream_ptr) (                                   \
  (stream_ptr)->wbuf_size == 0 ?                                             \
    (acl_vstream_buffed_space((stream_ptr)),                                 \
        ((stream_ptr)->wbuf[(size_t) (stream_ptr)->wbuf_dlen++] = (ch)))     \
    : ((stream_ptr)->wbuf_dlen == stream_ptr->wbuf_size ?                    \
        (acl_vstream_fflush((stream_ptr)) == ACL_VSTREAM_EOF ?               \
          ACL_VSTREAM_EOF                                                    \
          : ((stream_ptr)->wbuf[(size_t) (stream_ptr)->wbuf_dlen++] = (ch))) \
        : ((stream_ptr)->wbuf[(size_t) (stream_ptr)->wbuf_dlen++] = (ch))))

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׽<EFBFBD><EFBFBD><EFBFBD>
 * @param stream_ptr {ACL_VSTREAM*}
 */
#define ACL_VSTREAM_SOCK(stream_ptr) ((stream_ptr)->fd.sock)

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param stream_ptr {ACL_VSTREAM*}
 */
#define ACL_VSTREAM_FILE(stream_ptr) ((stream_ptr)->fd.h_file)

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param stream_ptr {ACL_VSTREAM*}
 */
#define	ACL_VSTREAM_PATH(stream_ptr) ((stream_ptr)->path)

/**
 * <EFBFBD><EFBFBD> ACL_VSTREAM Ϊ<EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD>
 * @param fp {ACL_VSTREAM*} <EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>
 * @param path {const char*} <EFBFBD>ļ<EFBFBD>·<EFBFBD><EFBFBD>
 */
ACL_API void acl_vstream_set_path(ACL_VSTREAM *fp, const char *path);

/**
 * <EFBFBD><EFBFBD> ACL_VSTREAM Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>ô˺<EFBFBD>ȡ<EFBFBD>öԷ<EFBFBD><EFBFBD>ĵ<EFBFBD>ַ
 */
#define	ACL_VSTREAM_PEER(stream_ptr) ((stream_ptr)->addr_peer)

/**
 * <EFBFBD><EFBFBD> ACL_VSTREAM Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>˺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD>ַ
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD>
 * @param addr {const char*} Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD>
 */
ACL_API void acl_vstream_set_peer(ACL_VSTREAM *fp, const char *addr);

/**
 * <EFBFBD><EFBFBD> ACL_VSTREAM Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>˺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD>ַ
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD>
 * @param sa {const struct sockaddr *} Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD>
 * @return {int} <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ == 0 <EFBFBD><EFBFBD>ʾ<EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD>< 0 <EFBFBD><EFBFBD>ʾʧ<EFBFBD><EFBFBD>
 */
ACL_API int acl_vstream_set_peer_addr(ACL_VSTREAM *fp, const struct sockaddr *sa);

/**
 * <EFBFBD><EFBFBD> ACL_VSTREAM Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>ô˺<EFBFBD>ȡ<EFBFBD>ñ<EFBFBD><EFBFBD>صĵ<EFBFBD>ַ
 */
#define	ACL_VSTREAM_LOCAL(stream_ptr) ((stream_ptr)->addr_local)

/**
 * <EFBFBD><EFBFBD> ACL_VSTREAM Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>˺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD>ص<EFBFBD>ַ
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD>
 * @param addr {const char*} <EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD>
 */
ACL_API void acl_vstream_set_local(ACL_VSTREAM *fp, const char *addr);

/**
 * <EFBFBD><EFBFBD> ACL_VSTREAM Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>˺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD>ص<EFBFBD>ַ
 * @param fp {ACL_VSTREAM*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD>
 * @param sa {const sockaddr*} <EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD>
 * @return {int} <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ == 0 <EFBFBD><EFBFBD>ʾ<EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD>< 0 <EFBFBD><EFBFBD>ʾʧ<EFBFBD><EFBFBD>
 */
ACL_API int acl_vstream_set_local_addr(ACL_VSTREAM *fp, const struct sockaddr *sa);

ACL_API int acl_vstream_add_object(ACL_VSTREAM *fp, const char *key, void *obj);
ACL_API int acl_vstream_del_object(ACL_VSTREAM *fp, const char *key);
ACL_API void *acl_vstream_get_object(ACL_VSTREAM *fp, const char *key);

ACL_API void acl_socket_read_hook(ACL_VSTREAM_RD_FN read_fn);
ACL_API void acl_socket_write_hook(ACL_VSTREAM_WR_FN write_fn);
ACL_API void acl_socket_writev_hook(ACL_VSTREAM_WV_FN writev_fn);
ACL_API void acl_socket_close_hook(int (*close_fn)(ACL_SOCKET));

/**
 * <EFBFBD>趨<EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD>/д<EFBFBD>׽<EFBFBD><EFBFBD><EFBFBD>
 * @param stream_ptr {ACL_VSTREAM*}
 * @param _fd {ACL_SOCKET} <EFBFBD>׽<EFBFBD><EFBFBD><EFBFBD>
 */
#define	ACL_VSTREAM_SET_SOCK(stream_ptr, _fd) do {            \
        ACL_VSTREAM *__stream_ptr = stream_ptr;               \
        __stream_ptr->fd.sock   = _fd;                        \
} while (0)

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param stream_ptr {ACL_VSTREAM*}
 * @param _fh {ACL_FILE_HANDLE}
 */
#define	ACL_VSTREAM_SET_FILE(stream_ptr, _fh) do {            \
        ACL_VSTREAM *__stream_ptr = stream_ptr;               \
        __stream_ptr->fd.h_file = _fh;                        \
} while (0)

/* һЩ<D2BB>ȽϿ<C8BD><CFBF>ٵĺ<D9B5><C4BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģʽ */

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С
 * @param stream_ptr {ACL_VSTREAM*) <EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD>ָ<EFBFBD><EFBFBD>
 * @return -1: <EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, >= 0 <EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С
 */
#define	ACL_VSTREAM_BFRD_CNT(stream_ptr)                      \
	((stream_ptr) == NULL ? -1 : (stream_ptr)->read_cnt)

/**
 * <EFBFBD>趨<EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD>д<EFBFBD><EFBFBD>ʱֵ
 * @param stream_ptr {ACL_VSTREAM*) <EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD>ָ<EFBFBD><EFBFBD>
 * @param _rw_timeo {int} <EFBFBD><EFBFBD>ʱֵ<EFBFBD><EFBFBD>С(<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>λ)
 */
#define	ACL_VSTREAM_SET_RWTIMO(stream_ptr, _rw_timeo) do {    \
        ACL_VSTREAM *__stream_ptr  = stream_ptr;              \
        __stream_ptr->rw_timeout = _rw_timeo;                 \
} while (0)

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬
 * @param stream_ptr {ACL_VSTREAM*) <EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD>ָ<EFBFBD><EFBFBD>
 */
#define	ACL_VSTREAM_SET_EOF(stream_ptr) do {                  \
        ACL_VSTREAM *__stream_ptr = stream_ptr;               \
        __stream_ptr->flag |= ACL_VSTREAM_FLAG_EOF;           \
} while (0)

/**
 * <EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˴<EFBFBD>
 * @param stream_ptr: ACL_VSTREAM <EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD>ָ<EFBFBD><EFBFBD>
 * @return 0<EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD>0<EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
#define ACL_IF_VSTREAM_ERR(stream_ptr)                        \
	((stream_ptr)->flag & ACL_VSTREAM_FLAG_BAD)

#ifdef  __cplusplus
}
#endif

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD>йص<EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param stream_ptr {ACL_VSTREAM*) <EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD>ָ<EFBFBD><EFBFBD>
 * @return err {int} <EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ţ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߿<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> strerror(err) <EFBFBD>ķ<EFBFBD>ʽ<EFBFBD>鿴<EFBFBD><EFBFBD><EFBFBD>庬<EFBFBD><EFBFBD>
 */
#define	ACL_VSTREAM_ERRNO(stream_ptr) ((stream_ptr)->errnum)

/**
 * <EFBFBD>ж<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD>ʱ
 * @param stream_ptr {ACL_VSTREAM*) <EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD>ָ<EFBFBD><EFBFBD>
 * @return {int} 0: <EFBFBD><EFBFBD>; != 0: <EFBFBD><EFBFBD>
 */
#define	acl_vstream_ftimeout(stream_ptr) \
        ((stream_ptr)->flag & ACL_VSTREAM_FLAG_TIMEOUT)

#endif