delete_record()

Delete a record from the Store. More...

Collaboration diagram for delete_record():

Functions
static int	store_bdb_delete_record (void *store, const char *key, size_t klen)
	Implements StoreOps::delete_record() -. More...
static int	store_gdbm_delete_record (void *store, const char *key, size_t klen)
	Implements StoreOps::delete_record() -. More...
static int	store_kyotocabinet_delete_record (void *store, const char *key, size_t klen)
	Implements StoreOps::delete_record() -. More...
static int	store_lmdb_delete_record (void *store, const char *key, size_t klen)
	Implements StoreOps::delete_record() -. More...
static int	store_qdbm_delete_record (void *store, const char *key, size_t klen)
	Implements StoreOps::delete_record() -. More...
static int	store_rocksdb_delete_record (void *store, const char *key, size_t klen)
	Implements StoreOps::delete_record() -. More...
static int	store_tokyocabinet_delete_record (void *store, const char *key, size_t klen)
	Implements StoreOps::delete_record() -. More...
static int	store_tdb_delete_record (void *store, const char *key, size_t klen)
	Implements StoreOps::delete_record() -. More...

Detailed Description

Delete a record from the Store.

Parameters

[in]	store	Store retrieved via open()
[in]	key	Key identifying the record
[in]	klen	Length of the Key string

Return values

0	Success
num	Error, a backend-specific error code

Function Documentation

store_bdb_delete_record()

static int store_bdb_delete_record ( void *  store, const char *  key, size_t  klen  )

static

Implements StoreOps::delete_record() -.

Definition at line 212 of file bdb.c.

{
  if (!store)
    return -1;

  DBT dkey;

  struct StoreDbCtx *ctx = store;

  dbt_init(&dkey, (void *) key, klen);
  return ctx->db->del(ctx->db, NULL, &dkey, 0);
}

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store_gdbm_delete_record()

static int store_gdbm_delete_record ( void *  store, const char *  key, size_t  klen  )

static

Implements StoreOps::delete_record() -.

Definition at line 111 of file gdbm.c.

{
  if (!store)
    return -1;

  datum dkey;

  GDBM_FILE db = store;

  dkey.dptr = (char *) key;
  dkey.dsize = klen;

  return gdbm_delete(db, dkey);
}

store_kyotocabinet_delete_record()

static int store_kyotocabinet_delete_record ( void *  store, const char *  key, size_t  klen  )

static

Implements StoreOps::delete_record() -.

Definition at line 113 of file kc.c.

{
  if (!store)
    return -1;

  KCDB *db = store;
  if (!kcdbremove(db, key, klen))
  {
    int ecode = kcdbecode(db);
    return ecode ? ecode : -1;
  }
  return 0;
}

store_lmdb_delete_record()

static int store_lmdb_delete_record ( void *  store, const char *  key, size_t  klen  )

static

Implements StoreOps::delete_record() -.

Definition at line 261 of file lmdb.c.

{
  if (!store)
    return -1;

  MDB_val dkey;

  struct StoreLmdbCtx *ctx = store;

  dkey.mv_data = (void *) key;
  dkey.mv_size = klen;
  int rc = mdb_get_w_txn(ctx);
  if (rc != MDB_SUCCESS)
  {
    mutt_debug(LL_DEBUG2, "mdb_get_w_txn: %s\n", mdb_strerror(rc));
    return rc;
  }
  rc = mdb_del(ctx->txn, ctx->db, &dkey, NULL);
  if ((rc != MDB_SUCCESS) && (rc != MDB_NOTFOUND))
  {
    mutt_debug(LL_DEBUG2, "mdb_del: %s\n", mdb_strerror(rc));
    mdb_txn_abort(ctx->txn);
    ctx->txn_mode = TXN_UNINITIALIZED;
    ctx->txn = NULL;
  }

  return rc;
}

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store_qdbm_delete_record()

static int store_qdbm_delete_record ( void *  store, const char *  key, size_t  klen  )

static

Implements StoreOps::delete_record() -.

Definition at line 93 of file qdbm.c.

{
  if (!store)
    return -1;

  VILLA *db = store;
  /* Not sure if dbecode is reset on success, so better to explicitly return 0
   * on success */
  bool success = vlout(db, key, klen);
  return success ? 0 : dpecode ? dpecode : -1;
}

store_rocksdb_delete_record()

static int store_rocksdb_delete_record ( void *  store, const char *  key, size_t  klen  )

static

Implements StoreOps::delete_record() -.

Definition at line 143 of file rocksdb.c.

{
  if (!store)
    return -1;

  struct RocksDbCtx *ctx = store;

  rocksdb_delete(ctx->db, ctx->write_options, key, klen, &ctx->err);
  if (ctx->err)
  {
    rocksdb_free(ctx->err);
    ctx->err = NULL;
    return -1;
  }

  return 0;
}

store_tokyocabinet_delete_record()

static int store_tokyocabinet_delete_record ( void *  store, const char *  key, size_t  klen  )

static

Implements StoreOps::delete_record() -.

Definition at line 105 of file tc.c.

{
  if (!store)
    return -1;

  TCBDB *db = store;
  if (!tcbdbout(db, key, klen))
  {
    int ecode = tcbdbecode(db);
    return ecode ? ecode : -1;
  }
  return 0;
}

store_tdb_delete_record()

static int store_tdb_delete_record ( void *  store, const char *  key, size_t  klen  )

static

Implements StoreOps::delete_record() -.

Definition at line 106 of file tdb.c.

{
  if (!store)
    return -1;

  TDB_CONTEXT *db = store;
  TDB_DATA dkey;

  dkey.dptr = (unsigned char *) key;
  dkey.dsize = klen;

  return tdb_delete(db, dkey);
}