lib.h

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#ifndef MUTT_HCACHE_LIB_H
#define MUTT_HCACHE_LIB_H
 
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include "compress/lib.h"
#include "store/lib.h"
 
struct Buffer;
struct Email;

struct HeaderCache
{
  char *folder;                       
  unsigned int crc;                   
  const struct StoreOps *store_ops;   
  StoreHandle *store_handle;          
  const struct ComprOps *compr_ops;   
  ComprHandle *compr_handle;          
};

struct HCacheEntry
{
  uint32_t uidvalidity; 
  unsigned int crc;     
  struct Email *email;  
};

typedef void (*hcache_namer_t)(const char *path, struct Buffer *dest);

struct HeaderCache *hcache_open(const char *path, const char *folder, hcache_namer_t namer, bool create);

void hcache_close(struct HeaderCache **ptr);

int hcache_store_email(struct HeaderCache *hc, const char *key, size_t keylen, struct Email *e, uint32_t uidvalidity);

struct HCacheEntry hcache_fetch_email(struct HeaderCache *hc, const char *key, size_t keylen, uint32_t uidvalidity);
 
char *hcache_fetch_raw_str(struct HeaderCache *hc, const char *key, size_t keylen);
bool  hcache_fetch_raw_obj_full(struct HeaderCache *hc, const char *key, size_t keylen, void *dst, size_t dstlen);
#define hcache_fetch_raw_obj(hc, key, keylen, dst) hcache_fetch_raw_obj_full(hc, key, keylen, dst, sizeof(*dst))
 
int hcache_store_raw(struct HeaderCache *hc, const char *key, size_t keylen,
                          void *data, size_t dlen);

int hcache_delete_email(struct HeaderCache *hc, const char *key, size_t keylen);

int hcache_delete_raw(struct HeaderCache *hc, const char *key, size_t keylen);
 
#endif /* MUTT_HCACHE_LIB_H */