init.h

/*    Copyright 2012 10gen Inc.
 *
 *    Licensed 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
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */
 
#pragma once
 
#include "mongo/base/initializer.h"
#include "mongo/base/initializer_context.h"
#include "mongo/base/initializer_function.h"
#include "mongo/base/global_initializer.h"
#include "mongo/base/global_initializer_registerer.h"
#include "mongo/base/make_string_vector.h"
#include "mongo/base/status.h"
 
#define MONGO_NO_PREREQUISITES (NULL)
 
#define MONGO_NO_DEPENDENTS (NULL)
 
#define MONGO_DEFAULT_PREREQUISITES ("default")
 
#define MONGO_INITIALIZER(NAME) \
    MONGO_INITIALIZER_WITH_PREREQUISITES(NAME, MONGO_DEFAULT_PREREQUISITES)
 
#define MONGO_INITIALIZER_WITH_PREREQUISITES(NAME, PREREQUISITES) \
    MONGO_INITIALIZER_GENERAL(NAME, PREREQUISITES, MONGO_NO_DEPENDENTS)
 
#define MONGO_INITIALIZER_GENERAL(NAME, PREREQUISITES, DEPENDENTS)                        \
    ::mongo::Status _MONGO_INITIALIZER_FUNCTION_NAME(NAME)(::mongo::InitializerContext*); \
    namespace {                                                                           \
    ::mongo::GlobalInitializerRegisterer _mongoInitializerRegisterer_##NAME(              \
        #NAME,                                                                            \
        _MONGO_INITIALIZER_FUNCTION_NAME(NAME),                                           \
        MONGO_MAKE_STRING_VECTOR PREREQUISITES,                                           \
        MONGO_MAKE_STRING_VECTOR DEPENDENTS);                                             \
    }                                                                                     \
    ::mongo::Status _MONGO_INITIALIZER_FUNCTION_NAME(NAME)
 
#define MONGO_INITIALIZER_GROUP(NAME, PREREQUISITES, DEPENDENTS)                               \
    MONGO_INITIALIZER_GENERAL(NAME, PREREQUISITES, DEPENDENTS)(::mongo::InitializerContext*) { \
        return ::mongo::Status::OK();                                                          \
    }
 
#define _MONGO_INITIALIZER_FUNCTION_NAME(NAME) _mongoInitializerFunction_##NAME
 
#define MONGO_INITIALIZER_FUNCTION_ASSURE_FILE(NAME) \
    namespace mongo {                                \
    void _mongoInitializerFunctionAssure_##NAME() {} \
    }