62 lines
2.6 KiB
C++
62 lines
2.6 KiB
C++
/* Copyright (c) 2020, 2024, Oracle and/or its affiliates.
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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 designed to work 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 either included with
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the program or referenced in the documentation.
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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 UDF_METADATA_IMP_H
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#define UDF_METADATA_IMP_H
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#include <mysql/components/component_implementation.h>
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#include <mysql/components/service_implementation.h>
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#include <mysql/components/services/udf_metadata.h>
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#include <mysql/udf_registration_types.h>
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extern REQUIRES_SERVICE_PLACEHOLDER(mysql_udf_metadata);
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/**
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A helper class for the implementation of the udf_extension functions
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Needed because we register these service implementations
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as part of the mysql_server component.
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*/
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class mysql_udf_metadata_imp {
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public: /* service implementations */
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/* Retrieves the extension argument from a UDF argument. */
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static DEFINE_BOOL_METHOD(argument_get,
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(UDF_ARGS * udf_args, const char *extension_type,
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unsigned int index, void **out_value));
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/* Retrieves the extension argument from return value of UDF. */
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static DEFINE_BOOL_METHOD(result_get,
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(UDF_INIT * udf_init, const char *extension_type,
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void **argument));
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/* Sets the extension argument for a UDF argument. */
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static DEFINE_BOOL_METHOD(argument_set,
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(UDF_ARGS * udf_args, const char *extension_type,
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unsigned int index, void *in_value));
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/* Sets the extension argument for a return value of UDF. */
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static DEFINE_BOOL_METHOD(result_set,
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(UDF_INIT * udf_init, const char *extension_type,
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void *argument));
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};
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#endif // UDF_METADATA_IMP_H
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