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[t:1925], use db->getf_set in a couple of places

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git-svn-id: file:///svn/mysql/tokudb-engine/src@13866 c7de825b-a66e-492c-adef-691d508d4ae1
This commit is contained in:
Zardosht Kasheff 2009-08-06 15:49:36 +00:00 committed by Yoni Fogel
parent d5947f430a
commit c2d5d8e1e8
2 changed files with 40 additions and 13 deletions
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52
storage/tokudb/ha_tokudb.cc
View file

@ -361,6 +361,13 @@ static int smart_dbt_do_nothing (DBT const *key, DBT const *row, void *context)
}
static int
smart_dbt_callback_rowread_ptquery (DBT const *key, DBT const *row, void *context) {
SMART_DBT_INFO info = (SMART_DBT_INFO)context;
info->ha->read_row_callback(info->buf,info->keynr,row,key);
return 0;
}
//
// Smart DBT callback function in case where we have a covering index
//
@ -3250,6 +3257,12 @@ void ha_tokudb::extract_hidden_primary_key(uint keynr, DBT const *row, DBT const
}
}
void ha_tokudb::read_row_callback (uchar * buf, uint keynr, DBT const *row, DBT const *found_key) {
assert(keynr == primary_key);
unpack_row(buf, row,found_key, keynr);
}
//
// Reads the contents of row and found_key, DBT's retrieved from the DB associated to keynr, into buf
// This function assumes that we are using a covering index, as a result, if keynr is the primary key,
@ -3320,15 +3333,25 @@ exit:
int ha_tokudb::read_full_row(uchar * buf) {
TOKUDB_DBUG_ENTER("ha_tokudb::read_full_row");
int error;
struct smart_dbt_info info;
info.ha = this;
info.buf = buf;
info.keynr = primary_key;
//
// Read the data into current_row, assumes key is stored in this->last_key
// assumes key is stored in this->last_key
//
current_row.flags = DB_DBT_REALLOC;
if ((error = share->file->get(share->file, transaction, &last_key, &current_row, 0))) {
error = share->file->getf_set(
share->file,
transaction,
0,
&last_key,
smart_dbt_callback_rowread_ptquery,
&info
);
if (error) {
table->status = STATUS_NOT_FOUND;
TOKUDB_DBUG_RETURN(error == DB_NOTFOUND ? HA_ERR_CRASHED : error);
}
error = unpack_row(buf, &current_row, &last_key, primary_key);
TOKUDB_DBUG_RETURN(error);
}
@ -3924,22 +3947,25 @@ int ha_tokudb::rnd_pos(uchar * buf, uchar * pos) {
TOKUDB_DBUG_ENTER("ha_tokudb::rnd_pos");
DBT db_pos;
int error;
struct smart_dbt_info info;
bool old_unpack_entire_row = unpack_entire_row;
DBT* key = get_pos(&db_pos, pos);
unpack_entire_row = true;
statistic_increment(table->in_use->status_var.ha_read_rnd_count, &LOCK_status);
active_index = MAX_KEY;
DBT* key = get_pos(&db_pos, pos);
error = share->file->get(share->file, transaction, key, &current_row, 0);
info.ha = this;
info.buf = buf;
info.keynr = primary_key;
error = share->file->getf_set(share->file, transaction, 0, key, smart_dbt_callback_rowread_ptquery, &info);
if (error == DB_NOTFOUND) {
error = HA_ERR_KEY_NOT_FOUND;
goto cleanup;
}
if (!error) {
bool old_unpack_entire_row = unpack_entire_row;
unpack_entire_row = true;
error = read_row(buf, primary_key, &current_row, key);
unpack_entire_row = old_unpack_entire_row;
}
cleanup:
unpack_entire_row = old_unpack_entire_row;
TOKUDB_DBUG_RETURN(error);
}

1
storage/tokudb/ha_tokudb.h
View file

@ -421,6 +421,7 @@ public:
int delete_all_rows();
void extract_hidden_primary_key(uint keynr, DBT const *row, DBT const *found_key);
void read_key_only(uchar * buf, uint keynr, DBT const *row, DBT const *found_key);
void read_row_callback (uchar * buf, uint keynr, DBT const *row, DBT const *found_key);
int read_primary_key(uchar * buf, uint keynr, DBT const *row, DBT const *found_key);
int read_row(uchar * buf, uint keynr, DBT const *row, DBT const *found_key);
int unpack_blobs(