wa_walk.h

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#ifndef RCBENCH_WA_WALK_H
#define RCBENCH_WA_WALK_H
 
#include <stdbool.h>
#include <stdint.h>
 
#include "wa_text.h"
 
#ifdef __cplusplus
extern "C" {
#endif

#define WA_WALK_DEPTH 16u
 
typedef struct {
    char     name[WA_NAME_BYTES];
    bool     dir;
    uint64_t size;    
    int64_t  mtime;   
} wa_dirent_t;

typedef struct {
    void   *(*opendir)(void *ctx, const char *path);
    int     (*readdir)(void *ctx, void *dir, wa_dirent_t *out);
    void    (*closedir)(void *ctx, void *dir);
    void   *(*open)(void *ctx, const char *path);
    int32_t (*read)(void *ctx, void *file, uint8_t *dst, uint32_t len);
    void    (*close)(void *ctx, void *file);
    void    *ctx;
    bool    (*stopped)(void *ctx);
} wa_fs_t;

typedef enum {
    WA_WALK_DIR = 0,  
    WA_WALK_FILE,     
    WA_WALK_END,      
    WA_WALK_NO_CARD,  
    WA_WALK_ERROR,    
} wa_walk_ev_t;
 
typedef struct {
    void    *dir;     
    uint32_t len;     
    bool     dirs;    
} wa_level_t;

typedef struct {
    const wa_fs_t *fs;        
    unsigned       depth;     
    wa_level_t     lv[WA_WALK_DEPTH + 1u]; 
    char           path[WA_PATH_MAX + 1u]; 
    wa_dirent_t    ent;       
    unsigned long  left_out;  
    bool           started;   
    wa_walk_ev_t   last;      
    bool           over;      
} wa_walk_t;

void wa_walk_begin(wa_walk_t *w, const wa_fs_t *fs);

wa_walk_ev_t wa_walk_next(wa_walk_t *w);

void wa_walk_end(wa_walk_t *w);
 
#ifdef __cplusplus
}
#endif
 
#endif /* RCBENCH_WA_WALK_H */