qdbm.c

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#include "config.h"
#include <depot.h>
#include <stdbool.h>
#include <stddef.h>
#include <villa.h>
#include "mutt/lib.h"
#include "lib.h"
 
static StoreHandle *store_qdbm_open(const char *path, bool create)
{
  if (!path)
    return NULL;
 
  VILLA *db = vlopen(path, VL_OWRITER | (create ? VL_OCREAT : 0), VL_CMPLEX);
 
  // Return an opaque pointer
  return (StoreHandle *) db;
}
 
static void *store_qdbm_fetch(StoreHandle *store, const char *key, size_t klen, size_t *vlen)
{
  if (!store)
    return NULL;
 
  // Decloak an opaque pointer
  VILLA *db = store;
  int sp = 0;
  void *rv = vlget(db, key, klen, &sp);
  *vlen = sp;
  return rv;
}
 
static void store_qdbm_free(StoreHandle *store, void **ptr)
{
  FREE(ptr);
}
 
static int store_qdbm_store(StoreHandle *store, const char *key, size_t klen,
                            void *value, size_t vlen)
{
  if (!store)
    return -1;
 
  // Decloak an opaque pointer
  VILLA *db = store;
  /* Not sure if dpecode is reset on success, so better to explicitly return 0
   * on success */
  bool success = vlput(db, key, klen, value, vlen, VL_DOVER);
  return success ? 0 : dpecode ? dpecode : -1;
}
 
static int store_qdbm_delete_record(StoreHandle *store, const char *key, size_t klen)
{
  if (!store)
    return -1;
 
  // Decloak an opaque pointer
  VILLA *db = store;
  /* Not sure if dpecode is reset on success, so better to explicitly return 0
   * on success */
  bool success = vlout(db, key, klen);
  return success ? 0 : dpecode ? dpecode : -1;
}
 
static void store_qdbm_close(StoreHandle **ptr)
{
  if (!ptr || !*ptr)
    return;
 
  // Decloak an opaque pointer
  VILLA *db = *ptr;
  vlclose(db);
  *ptr = NULL;
}
 
static const char *store_qdbm_version(void)
{
  return "qdbm " _QDBM_VERSION;
}
 
STORE_BACKEND_OPS(qdbm)