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/** @file
Plugin init declarations
@section license License
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
See the License for the specific language governing permissions and
limitations under the License.
#ifndef __PLUGIN_H__
#define __PLUGIN_H__
#include "ts/List.h"
struct PluginRegInfo {
bool plugin_registered;
char *plugin_path;
char *plugin_name;
char *vendor_name;
char *support_email;
void *dlh;
LINK(PluginRegInfo, link);
// Plugin registration vars
extern DLL<PluginRegInfo> plugin_reg_list;
extern PluginRegInfo *plugin_reg_current;
bool plugin_init(bool validateOnly = false);
/** Abstract interface class for plugin based continuations.
The primary intended use of this is for logging so that continuations
that generate logging messages can generate plugin local data in a
generic way.
The core will at appropriate times dynamically cast the continuation
to this class and if successful access the plugin data via these
Plugins should mix this in to continuations for which it is useful.
The default implementations return empty / invalid responses and should
be overridden by the plugin.
class PluginIdentity
/// Make sure destructor is virtual.
virtual ~PluginIdentity() {}
/** Get the plugin tag.
The returned string must have a lifetime at least as long as the plugin.
@return A string identifying the plugin or @c NULL.
virtual char const *
getPluginTag() const
return NULL;
/** Get the plugin instance ID.
A plugin can create multiple subsidiary instances. This is used as the
identifier for those to distinguish the instances.
virtual int64_t
getPluginId() const
return 0;
#endif /* __PLUGIN_H__ */