lib.h

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#ifndef MUTT_HCACHE_LIB_H
#define MUTT_HCACHE_LIB_H

#include <stddef.h>
#include <stdint.h>

struct Buffer;
struct Email;

struct HeaderCache
{
  char *folder;
  unsigned int crc;
  void *ctx;
  void *cctx;
};

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

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

struct HeaderCache *mutt_hcache_open(const char *path, const char *folder, hcache_namer_t namer);

void mutt_hcache_close(struct HeaderCache *hc);

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

struct HCacheEntry mutt_hcache_fetch(struct HeaderCache *hc, const char *key, size_t keylen, uint32_t uidvalidity);

int mutt_hcache_store_raw(struct HeaderCache *hc, const char *key, size_t keylen,
                          void *data, size_t dlen);

void *mutt_hcache_fetch_raw(struct HeaderCache *hc, const char *key, size_t keylen, size_t *dlen);

void mutt_hcache_free_raw(struct HeaderCache *hc, void **data);

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

#endif /* MUTT_HCACHE_LIB_H */