83 lines
2.2 KiB
C++
83 lines
2.2 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#ifndef DORIS_BE_PLUGIN_PLUGIN_H
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#define DORIS_BE_PLUGIN_PLUGIN_H
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namespace doris {
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#define PLUGIN_TYPE_AUDIT 1
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#define PLUGIN_TYPE_IMPORT 2
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#define PLUGIN_TYPE_STORAGE 3
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#define PLUGIN_TYPE_MAX 4
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#define PLUGIN_DEFAULT_FLAG 0UL
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#define PLUGIN_INSTALL_EARLY 1UL
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#define PLUGIN_NOT_DYNAMIC_UNINSTALL 2UL
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#define DORIS_PLUGIN_VERSION 001100UL
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/**
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* define a plugin:
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*
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* declare_plugin(PLUGIN_NAME) {
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* xx_handler,
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* init_method,
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* close_method,
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* PLUGIN_NOT_DYNAMIC_INSTALL | PLUGIN_NOT_DYNAMIC_UNINSTALL,
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* NULL,
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* NULL
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* } declare_plugin_end
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*
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*/
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struct Plugin {
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// support by type-specific plugin
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void* handler;
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// invoke when plugin install
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int (*init)(void*);
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// invoke when plugin uninstall
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int (*close)(void*);
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// flag for plugin
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uint64_t flags;
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// use to set/get variables
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void* variable;
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// return the plugin's status
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void* status;
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};
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#define __DECLARE_PLUGIN(VERSION, PSIZE, DECLS) \
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int VERSION = DORIS_PLUGIN_VERSION; \
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int PSIZE = sizeof(struct Plugin); \
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Plugin DECLS[] = {
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// Plugin Name must be same with plugin's description file
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#define declare_plugin(NAME) \
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__DECLARE_PLUGIN(NAME##_plugin_interface_version, NAME##_sizeof_plugin, NAME##_plugin)
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#define declare_plugin_end \
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, { 0, 0, 0, 0, 0, 0 } \
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} \
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;
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} // namespace doris
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#endif //DORIS_BE_PLUGIN_PLUGIN_H
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