MDEV-20768 Turn INET functions into a function collection plugin

libmysqld/CMakeLists.txt

@@ -116,9 +116,7 @@ SET(SQL_EMBEDDED_SOURCES emb_qcache.cc libmysqld.c lib_sql.cc
            ../sql/sql_mode.cc
            ../sql/sql_type_json.cc
            ../sql/sql_type_geom.cc
-           ../sql/sql_type_inet.cc
            ../sql/table_cache.cc ../sql/mf_iocache_encr.cc
-           ../sql/item_inetfunc.cc
            ../sql/wsrep_dummy.cc ../sql/encryption.cc
            ../sql/item_windowfunc.cc ../sql/sql_window.cc
            ../sql/sql_cte.cc

mysql-test/mysql-test-run.pl

@@ -203,6 +203,7 @@ my @DEFAULT_SUITES= qw(
     rpl-
     sys_vars-
     sql_sequence-
+    type_inet-
     unit-
     vcol-
     versioning-

plugin/type_inet/CMakeLists.txt

+# Copyright (c) 2016-2019, MariaDB corporation. All rights reserved.
+# 
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; version 2 of the License.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1335  USA
+
+MYSQL_ADD_PLUGIN(type_inet
+                 plugin.cc item_inetfunc.cc sql_type_inet.cc
+                 MANDATORY RECOMPILE_FOR_EMBEDDED)

sql/item_inetfunc.cc → plugin/type_inet/item_inetfunc.cc

 /* Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
    Copyright (c) 2014 MariaDB Foundation
+   Copyright (c) 2019 MariaDB Corporation
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -14,6 +15,7 @@
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335  USA */
 
+#define MYSQL_SERVER
 #include "mariadb.h"
 #include "item_inetfunc.h"
 #include "sql_type_inet.h"

sql/item_inetfunc.h → plugin/type_inet/item_inetfunc.h

@@ -3,6 +3,7 @@
 
 /* Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
    Copyright (c) 2014 MariaDB Foundation
+   Copyright (c) 2019 MariaDB Corporation
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

plugin/type_inet/mysql-test/type_inet/func_inet_plugin.result

+#
+# Start of 10.5 tests
+#
+#
+# MDEV-20768 Turn INET functions into a function collection plugin
+#
+SELECT
+PLUGIN_NAME,
+PLUGIN_VERSION,
+PLUGIN_STATUS,
+PLUGIN_TYPE,
+PLUGIN_AUTHOR,
+PLUGIN_DESCRIPTION,
+PLUGIN_LICENSE,
+PLUGIN_MATURITY,
+PLUGIN_AUTH_VERSION
+FROM INFORMATION_SCHEMA.PLUGINS
+WHERE PLUGIN_TYPE='FUNCTION COLLECTION'
+    AND PLUGIN_NAME='func_inet';
+PLUGIN_NAME	func_inet
+PLUGIN_VERSION	1.0
+PLUGIN_STATUS	ACTIVE
+PLUGIN_TYPE	FUNCTION COLLECTION
+PLUGIN_AUTHOR	MariaDB Corporation
+PLUGIN_DESCRIPTION	Function collection test
+PLUGIN_LICENSE	GPL
+PLUGIN_MATURITY	Experimental
+PLUGIN_AUTH_VERSION	1.0
+#
+# End of 10.5 tests
+#

plugin/type_inet/mysql-test/type_inet/func_inet_plugin.test

+--echo #
+--echo # Start of 10.5 tests
+--echo #
+
+--echo #
+--echo # MDEV-20768 Turn INET functions into a function collection plugin
+--echo #
+
+--vertical_results
+SELECT
+  PLUGIN_NAME,
+  PLUGIN_VERSION,
+  PLUGIN_STATUS,
+  PLUGIN_TYPE,
+  PLUGIN_AUTHOR,
+  PLUGIN_DESCRIPTION,
+  PLUGIN_LICENSE,
+  PLUGIN_MATURITY,
+  PLUGIN_AUTH_VERSION
+FROM INFORMATION_SCHEMA.PLUGINS
+  WHERE PLUGIN_TYPE='FUNCTION COLLECTION'
+    AND PLUGIN_NAME='func_inet';
+--horizontal_results
+
+--echo #
+--echo # End of 10.5 tests
+--echo #

plugin/type_inet/plugin.cc

+/* Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
+   Copyright (c) 2014 MariaDB Foundation
+   Copyright (c) 2019 MariaDB Corporation
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; version 2 of the License.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335  USA */
+
+#define MYSQL_SERVER
+#include "mariadb.h"
+#include "sql_class.h"
+#include "sql_type_inet.h"
+#include "item_inetfunc.h"
+#include <mysql/plugin_data_type.h>
+#include <mysql/plugin_function_collection.h>
+
+
+/*************************************************************************/
+
+class Create_func_inet_ntoa : public Create_func_arg1
+{
+public:
+  Item *create_1_arg(THD *thd, Item *arg1) override
+  {
+    return new (thd->mem_root) Item_func_inet_ntoa(thd, arg1);
+  }
+  static Create_func_inet_ntoa s_singleton;
+protected:
+  Create_func_inet_ntoa() {}
+  virtual ~Create_func_inet_ntoa() {}
+};
+
+
+class Create_func_inet_aton : public Create_func_arg1
+{
+public:
+  Item *create_1_arg(THD *thd, Item *arg1) override
+  {
+    return new (thd->mem_root) Item_func_inet_aton(thd, arg1);
+  }
+  static Create_func_inet_aton s_singleton;
+protected:
+  Create_func_inet_aton() {}
+  virtual ~Create_func_inet_aton() {}
+};
+
+
+class Create_func_inet6_aton : public Create_func_arg1
+{
+public:
+  Item *create_1_arg(THD *thd, Item *arg1) override
+  {
+    return new (thd->mem_root) Item_func_inet6_aton(thd, arg1);
+ } 
+  static Create_func_inet6_aton s_singleton;
+protected:
+  Create_func_inet6_aton() {}
+  virtual ~Create_func_inet6_aton() {}
+};
+
+
+class Create_func_inet6_ntoa : public Create_func_arg1
+{
+public:
+  Item *create_1_arg(THD *thd, Item *arg1) override
+  {
+    return new (thd->mem_root) Item_func_inet6_ntoa(thd, arg1);
+  }
+  static Create_func_inet6_ntoa s_singleton;
+protected:
+  Create_func_inet6_ntoa() {}
+  virtual ~Create_func_inet6_ntoa() {}
+};
+
+
+class Create_func_is_ipv4 : public Create_func_arg1
+{
+public:
+  Item *create_1_arg(THD *thd, Item *arg1) override
+  {
+    return new (thd->mem_root) Item_func_is_ipv4(thd, arg1);
+  }
+  static Create_func_is_ipv4 s_singleton;
+protected:
+  Create_func_is_ipv4() {}
+  virtual ~Create_func_is_ipv4() {}
+};
+
+
+class Create_func_is_ipv6 : public Create_func_arg1
+{
+public:
+  Item *create_1_arg(THD *thd, Item *arg1) override
+  {
+    return new (thd->mem_root) Item_func_is_ipv6(thd, arg1);
+  }
+  static Create_func_is_ipv6 s_singleton;
+protected:
+  Create_func_is_ipv6() {}
+  virtual ~Create_func_is_ipv6() {}
+};
+
+
+class Create_func_is_ipv4_compat : public Create_func_arg1
+{
+public:
+  Item *create_1_arg(THD *thd, Item *arg1) override
+  {
+    return new (thd->mem_root) Item_func_is_ipv4_compat(thd, arg1);
+  }
+  static Create_func_is_ipv4_compat s_singleton;
+protected:
+  Create_func_is_ipv4_compat() {}
+  virtual ~Create_func_is_ipv4_compat() {}
+};
+
+
+class Create_func_is_ipv4_mapped : public Create_func_arg1
+{
+public:
+  Item *create_1_arg(THD *thd, Item *arg1) override
+  {
+    return new (thd->mem_root) Item_func_is_ipv4_mapped(thd, arg1);
+  }
+  static Create_func_is_ipv4_mapped s_singleton;
+protected:
+  Create_func_is_ipv4_mapped() {}
+  virtual ~Create_func_is_ipv4_mapped() {}
+};
+
+
+Create_func_inet_ntoa Create_func_inet_ntoa::s_singleton;
+Create_func_inet6_aton Create_func_inet6_aton::s_singleton;
+Create_func_inet6_ntoa Create_func_inet6_ntoa::s_singleton;
+Create_func_inet_aton Create_func_inet_aton::s_singleton;
+Create_func_is_ipv4 Create_func_is_ipv4::s_singleton;
+Create_func_is_ipv6 Create_func_is_ipv6::s_singleton;
+Create_func_is_ipv4_compat Create_func_is_ipv4_compat::s_singleton;
+Create_func_is_ipv4_mapped Create_func_is_ipv4_mapped::s_singleton;
+
+
+#define BUILDER(F) & F::s_singleton
+
+
+static Native_func_registry func_array[] =
+{
+  {{STRING_WITH_LEN("INET_ATON")}, BUILDER(Create_func_inet_aton)},
+  {{STRING_WITH_LEN("INET_NTOA")}, BUILDER(Create_func_inet_ntoa)},
+  {{STRING_WITH_LEN("INET6_ATON")}, BUILDER(Create_func_inet6_aton)},
+  {{STRING_WITH_LEN("INET6_NTOA")}, BUILDER(Create_func_inet6_ntoa)},
+  {{STRING_WITH_LEN("IS_IPV4")}, BUILDER(Create_func_is_ipv4)},
+  {{STRING_WITH_LEN("IS_IPV6")}, BUILDER(Create_func_is_ipv6)},
+  {{STRING_WITH_LEN("IS_IPV4_COMPAT")}, BUILDER(Create_func_is_ipv4_compat)},
+  {{STRING_WITH_LEN("IS_IPV4_MAPPED")}, BUILDER(Create_func_is_ipv4_mapped)}
+};
+
+
+static Plugin_function_collection
+  plugin_descriptor_function_collection_inet(
+    MariaDB_FUNCTION_COLLECTION_INTERFACE_VERSION,
+    Native_func_registry_array(func_array, array_elements(func_array)));
+
+/*************************************************************************/
+
+maria_declare_plugin(type_inet)
+{
+  MariaDB_FUNCTION_COLLECTION_PLUGIN, // the plugin type (see include/mysql/plugin.h)
+  &plugin_descriptor_function_collection_inet, // pointer to type-specific plugin descriptor
+  "func_inet",                  // plugin name
+  "MariaDB Corporation",        // plugin author
+  "Function collection test",   // the plugin description
+  PLUGIN_LICENSE_GPL,           // the plugin license (see include/mysql/plugin.h)
+  0,                            // Pointer to plugin initialization function
+  0,                            // Pointer to plugin deinitialization function
+  0x0100,                       // Numeric version 0xAABB means AA.BB veriosn
+  NULL,                         // Status variables
+  NULL,                         // System variables
+  "1.0",                        // String version representation
+  MariaDB_PLUGIN_MATURITY_EXPERIMENTAL // Maturity(see include/mysql/plugin.h)*/
+}
+maria_declare_plugin_end;

sql/sql_type_inet.cc → plugin/type_inet/sql_type_inet.cc

 /* Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
    Copyright (c) 2014 MariaDB Foundation
+   Copyright (c) 2019 MariaDB Corporation
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -14,6 +15,7 @@
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335  USA */
 
+#define MYSQL_SERVER
 #include "mariadb.h"
 #include "my_net.h"
 #include "sql_class.h" // THD, SORT_FIELD_ATTR

sql/CMakeLists.txt

@@ -119,7 +119,7 @@ SET (SQL_SOURCE
                sql_profile.cc event_parse_data.cc sql_alter.cc
                sql_signal.cc mdl.cc sql_admin.cc
                transaction.cc sys_vars.cc sql_truncate.cc datadict.cc
-               sql_reload.cc item_inetfunc.cc
+               sql_reload.cc
 
                # added in MariaDB:
                sql_explain.cc
@@ -137,7 +137,6 @@ SET (SQL_SOURCE
                semisync_master_ack_receiver.cc
                sql_type.cc sql_mode.cc sql_type_json.cc
                sql_type_geom.cc
-               sql_type_inet.cc
                item_windowfunc.cc sql_window.cc
 	       sql_cte.cc
                item_vers.cc

sql/item_create.cc

@@ -33,7 +33,6 @@
 #include "set_var.h"
 #include "sp_head.h"
 #include "sp.h"
-#include "item_inetfunc.h"
 #include "sql_time.h"
 #include "sql_type_geom.h"
 #include <mysql/plugin_function_collection.h>
@@ -92,7 +91,8 @@ class Plugin_find_native_func_builder_param
   bool find_native_function_builder(THD *thd,
                                     const Plugin_function_collection *pfc)
   {
-    return ((builder= pfc->find_native_function_builder(thd, name))) == NULL;
+    // plugin_foreach() will stop iterating when this function returns TRUE
+    return ((builder= pfc->find_native_function_builder(thd, name))) != NULL;
   }
   static my_bool find_in_plugin(THD *thd, plugin_ref plugin, void *data)
   {
@@ -111,7 +111,7 @@ class Plugin_find_native_func_builder_param
   { }
   Create_func *find(THD *thd)
   {
-    if (plugin_foreach(thd,
+    if (!plugin_foreach(thd,
                         Plugin_find_native_func_builder_param::find_in_plugin,
                         MariaDB_FUNCTION_COLLECTION_PLUGIN, this))
       return NULL;
@@ -907,110 +907,6 @@ class Create_func_ifnull : public Create_func_arg2
 };
 
 
-class Create_func_inet_ntoa : public Create_func_arg1
-{
-public:
-  virtual Item *create_1_arg(THD *thd, Item *arg1);
-
-  static Create_func_inet_ntoa s_singleton;
-
-protected:
-  Create_func_inet_ntoa() {}
-  virtual ~Create_func_inet_ntoa() {}
-};
-
-
-class Create_func_inet_aton : public Create_func_arg1
-{
-public:
-  virtual Item *create_1_arg(THD *thd, Item *arg1);
-
-  static Create_func_inet_aton s_singleton;
-
-protected:
-  Create_func_inet_aton() {}
-  virtual ~Create_func_inet_aton() {}
-};
-
-
-class Create_func_inet6_aton : public Create_func_arg1
-{
-public:
-  virtual Item *create_1_arg(THD *thd, Item *arg1);
-
-  static Create_func_inet6_aton s_singleton;
-
-protected:
-  Create_func_inet6_aton() {}
-  virtual ~Create_func_inet6_aton() {}
-};
-
-
-class Create_func_inet6_ntoa : public Create_func_arg1
-{
-public:
-  virtual Item *create_1_arg(THD *thd, Item *arg1);
-
-  static Create_func_inet6_ntoa s_singleton;
-
-protected:
-  Create_func_inet6_ntoa() {}
-  virtual ~Create_func_inet6_ntoa() {}
-};
-
-
-class Create_func_is_ipv4 : public Create_func_arg1
-{
-public:
-  virtual Item *create_1_arg(THD *thd, Item *arg1);
-
-  static Create_func_is_ipv4 s_singleton;
-
-protected:
-  Create_func_is_ipv4() {}
-  virtual ~Create_func_is_ipv4() {}
-};
-
-
-class Create_func_is_ipv6 : public Create_func_arg1
-{
-public:
-  virtual Item *create_1_arg(THD *thd, Item *arg1);
-
-  static Create_func_is_ipv6 s_singleton;
-
-protected:
-  Create_func_is_ipv6() {}
-  virtual ~Create_func_is_ipv6() {}
-};
-
-
-class Create_func_is_ipv4_compat : public Create_func_arg1
-{
-public:
-  virtual Item *create_1_arg(THD *thd, Item *arg1);
-
-  static Create_func_is_ipv4_compat s_singleton;
-
-protected:
-  Create_func_is_ipv4_compat() {}
-  virtual ~Create_func_is_ipv4_compat() {}
-};
-
-
-class Create_func_is_ipv4_mapped : public Create_func_arg1
-{
-public:
-  virtual Item *create_1_arg(THD *thd, Item *arg1);
-
-  static Create_func_is_ipv4_mapped s_singleton;
-
-protected:
-  Create_func_is_ipv4_mapped() {}
-  virtual ~Create_func_is_ipv4_mapped() {}
-};
-
-
 class Create_func_instr : public Create_func_arg2
 {
 public:
@@ -3685,78 +3581,6 @@ Create_func_ifnull::create_2_arg(THD *thd, Item *arg1, Item *arg2)
 }
 
 
-Create_func_inet_ntoa Create_func_inet_ntoa::s_singleton;
-
-Item*
-Create_func_inet_ntoa::create_1_arg(THD *thd, Item *arg1)
-{
-  return new (thd->mem_root) Item_func_inet_ntoa(thd, arg1);
-}
-
-
-Create_func_inet6_aton Create_func_inet6_aton::s_singleton;
-
-Item*
-Create_func_inet6_aton::create_1_arg(THD *thd, Item *arg1)
-{
-  return new (thd->mem_root) Item_func_inet6_aton(thd, arg1);
-}
-
-
-Create_func_inet6_ntoa Create_func_inet6_ntoa::s_singleton;
-
-Item*
-Create_func_inet6_ntoa::create_1_arg(THD *thd, Item *arg1)
-{
-  return new (thd->mem_root) Item_func_inet6_ntoa(thd, arg1);
-}
-
-
-Create_func_inet_aton Create_func_inet_aton::s_singleton;
-
-Item*
-Create_func_inet_aton::create_1_arg(THD *thd, Item *arg1)
-{
-  return new (thd->mem_root) Item_func_inet_aton(thd, arg1);
-}
-
-
-Create_func_is_ipv4 Create_func_is_ipv4::s_singleton;
-
-Item*
-Create_func_is_ipv4::create_1_arg(THD *thd, Item *arg1)
-{
-  return new (thd->mem_root) Item_func_is_ipv4(thd, arg1);
-}
-
-
-Create_func_is_ipv6 Create_func_is_ipv6::s_singleton;
-
-Item*
-Create_func_is_ipv6::create_1_arg(THD *thd, Item *arg1)
-{
-  return new (thd->mem_root) Item_func_is_ipv6(thd, arg1);
-}
-
-
-Create_func_is_ipv4_compat Create_func_is_ipv4_compat::s_singleton;
-
-Item*
-Create_func_is_ipv4_compat::create_1_arg(THD *thd, Item *arg1)
-{
-  return new (thd->mem_root) Item_func_is_ipv4_compat(thd, arg1);
-}
-
-
-Create_func_is_ipv4_mapped Create_func_is_ipv4_mapped::s_singleton;
-
-Item*
-Create_func_is_ipv4_mapped::create_1_arg(THD *thd, Item *arg1)
-{
-  return new (thd->mem_root) Item_func_is_ipv4_mapped(thd, arg1);
-}
-
-
 Create_func_instr Create_func_instr::s_singleton;
 
 Item*
@@ -5681,14 +5505,6 @@ static Native_func_registry func_array[] =
   { { STRING_WITH_LEN("GREATEST") }, BUILDER(Create_func_greatest)},
   { { STRING_WITH_LEN("HEX") }, BUILDER(Create_func_hex)},
   { { STRING_WITH_LEN("IFNULL") }, BUILDER(Create_func_ifnull)},
-  { { STRING_WITH_LEN("INET_ATON") }, BUILDER(Create_func_inet_aton)},
-  { { STRING_WITH_LEN("INET_NTOA") }, BUILDER(Create_func_inet_ntoa)},
-  { { STRING_WITH_LEN("INET6_ATON") }, BUILDER(Create_func_inet6_aton)},
-  { { STRING_WITH_LEN("INET6_NTOA") }, BUILDER(Create_func_inet6_ntoa)},
-  { { STRING_WITH_LEN("IS_IPV4") }, BUILDER(Create_func_is_ipv4)},
-  { { STRING_WITH_LEN("IS_IPV6") }, BUILDER(Create_func_is_ipv6)},
-  { { STRING_WITH_LEN("IS_IPV4_COMPAT") }, BUILDER(Create_func_is_ipv4_compat)},
-  { { STRING_WITH_LEN("IS_IPV4_MAPPED") }, BUILDER(Create_func_is_ipv4_mapped)},
   { { STRING_WITH_LEN("INSTR") }, BUILDER(Create_func_instr)},
   { { STRING_WITH_LEN("ISNULL") }, BUILDER(Create_func_isnull)},
   { { STRING_WITH_LEN("IS_FREE_LOCK") }, BUILDER(Create_func_is_free_lock)},