aFunlang/src/core/__reader.hpp

#ifndef AFUN_READER_H_
#define AFUN_READER_H_
#include <stdio.h>
#include "aFunCoreExport.h"  // reader.h 不包含 aFunCoreExport.h
#include "tool.hpp"
#include "reader.hpp"

#define DEFAULT_BUF_SIZE (1024)
#define NEW_BUF_SIZE (512)

typedef struct af_Reader af_Reader;

typedef size_t readerFunc(void *data, char *dest, size_t len, int *mode);
NEW_DLC_SYMBOL(readerFunc, readerFunc);

typedef void destructReaderFunc(void *data);
NEW_DLC_SYMBOL(destructReaderFunc, destructReaderFunc);

struct af_Reader {
    DLC_SYMBOL(readerFunc) read_func;
    DLC_SYMBOL(destructReaderFunc) destruct;
    void *data;
    size_t data_size;

    char *buf;
    size_t buf_size;  // buf的长度-1
    char *read;
    bool read_end;
    bool read_error;
    FileLine line;
    FilePath file;

    bool init;  // 是否初始化
};

/* Reader 创建与释放 */
AFUN_CORE_NO_EXPORT af_Reader *makeReader(FileLine line, ConstFilePath file,
                                          DLC_SYMBOL(readerFunc) read_func, DLC_SYMBOL(destructReaderFunc) destruct_func,
                                          size_t data_size);
AFUN_CORE_NO_EXPORT void freeReader(af_Reader *reader);

/* Reader 初始化函数 */
AFUN_CORE_NO_EXPORT af_Reader *initReader(af_Reader *reader);

/* Reader 操作哈桑 */
AFUN_CORE_NO_EXPORT char *readWord(size_t del_index, af_Reader *reader);
AFUN_CORE_NO_EXPORT char getChar(af_Reader *reader);
AFUN_CORE_NO_EXPORT void *getReaderData(af_Reader *reader);

#endif //AFUN_READER_H_