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apr_optional.h
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/* 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
*
* 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.
*/
#ifndef APR_OPTIONAL_H
#define APR_OPTIONAL_H
#include "apu.h"
#ifdef __cplusplus
extern "C" {
#endif
#define APR_OPTIONAL_FN_TYPE(name) apr_OFN_##name##_t
#define APR_DECLARE_OPTIONAL_FN(ret,name,args) \
typedef ret (APR_OPTIONAL_FN_TYPE(name)) args
typedef void (apr_opt_fn_t)(void);
APU_DECLARE_NONSTD(void) apr_dynamic_fn_register(const char *szName,
apr_opt_fn_t *pfn);
#define APR_REGISTER_OPTIONAL_FN(name) do { \
APR_OPTIONAL_FN_TYPE(name) *apu__opt = name; \
apr_dynamic_fn_register(#name,(apr_opt_fn_t *)apu__opt); \
} while (0)
APU_DECLARE(apr_opt_fn_t *) apr_dynamic_fn_retrieve(const char *szName);
#define APR_RETRIEVE_OPTIONAL_FN(name) \
(APR_OPTIONAL_FN_TYPE(name) *)apr_dynamic_fn_retrieve(#name)
#ifdef __cplusplus
}
#endif
#endif /* APR_OPTIONAL_H */
apr_opt_fn_t
void() apr_opt_fn_t(void)
Definition apr_optional.h:59