null+****@clear*****
null+****@clear*****
2010年 9月 13日 (月) 21:56:17 JST
Yoshinori Matsunobu 2010-09-13 12:56:17 +0000 (Mon, 13 Sep 2010)
New Revision: 2460e3e69373e57b130720bfcc836d5d0624c75e
Log:
Added information schema plugin for groonga.
Modified files:
ha_mroonga.cc
Modified: ha_mroonga.cc (+90 -1)
===================================================================
--- ha_mroonga.cc 2010-09-13 12:21:38 +0000 (01cf6b5)
+++ ha_mroonga.cc 2010-09-13 12:56:17 +0000 (b7ea96a)
@@ -77,6 +77,95 @@ struct st_mysql_sys_var *mrn_system_variables[] =
NULL
};
+
+/* Groonga information schema */
+int GROONGA_VERSION_SHORT = 0x0001;
+static const char plugin_author[] = "Yoshinori Matsunobu";
+static struct st_mysql_information_schema i_s_info =
+{
+ MYSQL_INFORMATION_SCHEMA_INTERFACE_VERSION
+};
+
+static ST_FIELD_INFO i_s_groonga_stats_fields_info[] =
+{
+ {
+ "VERSION",
+ 40,
+ MYSQL_TYPE_STRING,
+ 0,
+ 0,
+ "",
+ SKIP_OPEN_TABLE
+ },
+ {
+ "rows_written",
+ MY_INT32_NUM_DECIMAL_DIGITS,
+ MYSQL_TYPE_LONG,
+ 0,
+ 0,
+ "Rows written to groonga",
+ SKIP_OPEN_TABLE
+ },
+ {
+ "rows_read",
+ MY_INT32_NUM_DECIMAL_DIGITS,
+ MYSQL_TYPE_LONG,
+ 0,
+ 0,
+ "Rows read from groonga",
+ SKIP_OPEN_TABLE
+ }
+};
+
+static int i_s_groonga_stats_deinit(void* p)
+{
+ DBUG_ENTER("i_s_common_deinit");
+ DBUG_RETURN(0);
+}
+
+static int i_s_groonga_stats_fill(
+ THD* thd, TABLE_LIST* tables, COND* cond)
+{
+ TABLE* table = (TABLE *) tables->table;
+ int status = 0;
+ DBUG_ENTER("i_s_groonga_fill_low");
+ table->field[0]->store(grn_get_version(), strlen(grn_get_version()),
+ system_charset_info);
+ table->field[0]->set_notnull();
+ table->field[1]->store(1); /* TODO */
+ table->field[2]->store(2); /* TODO */
+ if (schema_table_store_record(thd, table)) {
+ status = 1;
+ }
+ DBUG_RETURN(status);
+}
+
+static int i_s_groonga_stats_init(void* p)
+{
+ DBUG_ENTER("i_s_groonga_stats_init");
+ ST_SCHEMA_TABLE* schema = (ST_SCHEMA_TABLE*) p;
+ schema->fields_info = i_s_groonga_stats_fields_info;
+ schema->fill_table = i_s_groonga_stats_fill;
+ DBUG_RETURN(0);
+}
+
+struct st_mysql_plugin i_s_groonga_stats =
+{
+ MYSQL_INFORMATION_SCHEMA_PLUGIN,
+ &i_s_info,
+ "GROONGA_STATS",
+ plugin_author,
+ "Statistics for Groonga",
+ PLUGIN_LICENSE_GPL,
+ i_s_groonga_stats_init,
+ i_s_groonga_stats_deinit,
+ GROONGA_VERSION_SHORT,
+ NULL,
+ NULL,
+ NULL,
+};
+/* End of groonga information schema implementations */
+
mysql_declare_plugin(mroonga)
{
MYSQL_STORAGE_ENGINE_PLUGIN,
@@ -91,7 +180,7 @@ mysql_declare_plugin(mroonga)
mrn_status_variables,
mrn_system_variables,
NULL
-}
+},i_s_groonga_stats
mysql_declare_plugin_end;
int mrn_init(void *p)