delete_record()

Delete a record from the Store. More...

Collaboration diagram for delete_record():

Functions
static int	store_gdbm_delete_record (StoreHandle *store, const char *key, size_t klen)
	Delete a record from the Store - Implements StoreOps::delete_record() -.
static int	store_lmdb_delete_record (StoreHandle *store, const char *key, size_t klen)
	Delete a record from the Store - Implements StoreOps::delete_record() -.
static int	store_rocksdb_delete_record (StoreHandle *store, const char *key, size_t klen)
	Delete a record from the Store - Implements StoreOps::delete_record() -.
static int	store_tdb_delete_record (StoreHandle *store, const char *key, size_t klen)
	Delete a record from the Store - Implements StoreOps::delete_record() -.

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_gdbm_delete_record()

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

static

Delete a record from the Store - Implements StoreOps::delete_record() -.

Definition at line 118 of file gdbm.c.

{
  if (!store || (klen > INT_MAX))
    return -1;
 
  datum dkey = { 0 };
 
  // Decloak an opaque pointer
  GDBM_FILE db = store;
 
  dkey.dptr = (char *) key;
  dkey.dsize = klen;
 
  return gdbm_delete(db, dkey);
}

store_lmdb_delete_record()

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

static

Delete a record from the Store - Implements StoreOps::delete_record() -.

Definition at line 298 of file lmdb.c.

{
  if (!store)
    return -1;
 
  MDB_val dkey = { 0 };
 
  // Decloak an opaque pointer
  struct LmdbStoreData *sdata = store;
 
  dkey.mv_data = (void *) key;
  dkey.mv_size = klen;
  int rc = lmdb_get_write_txn(sdata);
  if (rc != MDB_SUCCESS)
  {
    mutt_debug(LL_DEBUG2, "lmdb_get_write_txn: %s\n", mdb_strerror(rc));
    return rc;
  }
  rc = mdb_del(sdata->txn, sdata->db, &dkey, NULL);
  if ((rc != MDB_SUCCESS) && (rc != MDB_NOTFOUND))
  {
    mutt_debug(LL_DEBUG2, "mdb_del: %s\n", mdb_strerror(rc));
    mdb_txn_abort(sdata->txn);
    sdata->txn_mode = TXN_UNINITIALIZED;
    sdata->txn = NULL;
  }
 
  return rc;
}

Here is the call graph for this function:

store_rocksdb_delete_record()

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

static

Delete a record from the Store - Implements StoreOps::delete_record() -.

Definition at line 177 of file rocksdb.c.

{
  if (!store)
    return -1;
 
  // Decloak an opaque pointer
  struct RocksDbStoreData *sdata = store;
 
  rocksdb_delete(sdata->db, sdata->write_options, key, klen, &sdata->err);
  if (sdata->err)
  {
    rocksdb_free(sdata->err);
    sdata->err = NULL;
    return -1;
  }
 
  return 0;
}

store_tdb_delete_record()

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

static

Delete a record from the Store - Implements StoreOps::delete_record() -.

Definition at line 116 of file tdb.c.

{
  if (!store)
    return -1;
 
  // Decloak an opaque pointer
  TDB_CONTEXT *db = store;
  TDB_DATA dkey = { 0 };
 
  dkey.dptr = (unsigned char *) key;
  dkey.dsize = klen;
 
  return tdb_delete(db, dkey);
}