142 lines
4.0 KiB
C++
142 lines
4.0 KiB
C++
/* Copyright (c) 2017, 2019, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License, version 2.0, for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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#ifndef TABLE_USER_DEFINED_FUNCTIONS_H
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#define TABLE_USER_DEFINED_FUNCTIONS_H
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/**
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@file storage/perfschema/table_user_defined_functions.h
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Table USER_DEFINED_FUNCTIONS (declarations).
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*/
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#include <sys/types.h>
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#include "my_base.h"
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#include "my_inttypes.h"
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#include "mysql_com.h"
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#include "storage/perfschema/pfs_engine_table.h"
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#include "storage/perfschema/table_helper.h"
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class Field;
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class Plugin_table;
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class THD;
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struct TABLE;
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struct THR_LOCK;
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struct udf_func;
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/**
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@addtogroup performance_schema_tables
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@{
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*/
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/** A row of PERFORMANCE_SCHEMA.USER_DEFINED_FUNCTIONS. */
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struct row_user_defined_functions {
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/** Column UDF_NAME. */
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char m_name[NAME_CHAR_LEN + 1];
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uint m_name_length;
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/** Column UDF_RETURN_TYPE. */
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const char *m_return_type;
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uint m_return_type_length;
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/** Column UDF_TYPE. */
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const char *m_type;
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uint m_type_length;
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/** Column UDF_LIBRARY. */
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char m_library[1024];
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uint m_library_length;
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/** Column UDF_USAGE_COUNT. */
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ulonglong m_usage_count;
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};
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class PFS_index_user_defined_functions : public PFS_engine_index {
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public:
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PFS_index_user_defined_functions(PFS_engine_key *key_1)
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: PFS_engine_index(key_1) {}
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~PFS_index_user_defined_functions() {}
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virtual bool match(const row_user_defined_functions *row) = 0;
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};
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class PFS_index_user_defined_functions_by_name
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: public PFS_index_user_defined_functions {
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public:
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PFS_index_user_defined_functions_by_name()
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: PFS_index_user_defined_functions(&m_key), m_key("UDF_NAME") {}
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~PFS_index_user_defined_functions_by_name() {}
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bool match(const row_user_defined_functions *row);
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private:
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PFS_key_name m_key;
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};
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/** Table PERFORMANCE_SCHEMA.USER_DEFINED_FUNCTIONS. */
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class table_user_defined_functions : public PFS_engine_table {
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public:
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/** Table share. */
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static PFS_engine_table_share m_share;
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static PFS_engine_table *create(PFS_engine_table_share *);
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static ha_rows get_row_count();
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virtual void reset_position(void);
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virtual int rnd_next();
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virtual int rnd_pos(const void *pos);
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virtual int index_init(uint idx, bool sorted);
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virtual int index_next();
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protected:
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virtual int read_row_values(TABLE *table, unsigned char *buf, Field **fields,
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bool read_all);
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table_user_defined_functions();
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public:
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~table_user_defined_functions() {}
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private:
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void materialize(THD *thd);
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static int make_row(const udf_func *entry, row_user_defined_functions *row);
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static void materialize_udf_funcs(udf_func *udf, void *arg);
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/** Table share lock. */
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static THR_LOCK m_table_lock;
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row_user_defined_functions *m_all_rows;
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uint m_row_count;
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/** Current row. */
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row_user_defined_functions *m_row;
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/** Current position. */
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PFS_simple_index m_pos;
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/** Next position. */
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PFS_simple_index m_next_pos;
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PFS_index_user_defined_functions *m_opened_index;
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/** Table definition. */
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static Plugin_table m_table_def;
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};
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/** @} */
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#endif
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