Loading...
Searching...
No Matches
apr_optional_hooks.h
Go to the documentation of this file.
/* 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_HOOK_H
#define APR_OPTIONAL_HOOK_H
#include "apr_tables.h"
#ifdef __cplusplus
extern "C" {
#endif
APU_DECLARE(void) apr_optional_hook_add(const char *szName,void (*pfn)(void),
const char * const *aszPre,
const char * const *aszSucc,
int nOrder);
#define APR_OPTIONAL_HOOK(ns,name,pfn,aszPre,aszSucc,nOrder) do { \
ns##_HOOK_##name##_t *apu__hook = pfn; \
apr_optional_hook_add(#name,(void (*)(void))apu__hook,aszPre, aszSucc, nOrder); \
} while (0)
APU_DECLARE(apr_array_header_t *) apr_optional_hook_get(const char *szName);
#define APR_IMPLEMENT_OPTIONAL_HOOK_RUN_ALL(ns,link,ret,name,args_decl,args_use,ok,decline) \
link##_DECLARE(ret) ns##_run_##name args_decl \
{ \
ns##_LINK_##name##_t *pHook; \
int n; \
ret rv; \
apr_array_header_t *pHookArray=apr_optional_hook_get(#name); \
\
if(!pHookArray) \
return ok; \
\
pHook=(ns##_LINK_##name##_t *)pHookArray->elts; \
for(n=0 ; n < pHookArray->nelts ; ++n) \
{ \
rv=(pHook[n].pFunc)args_use; \
\
if(rv != ok && rv != decline) \
return rv; \
} \
return ok; \
}
#ifdef __cplusplus
}
#endif
#endif /* APR_OPTIONAL_HOOK_H */
apr_optional_hook_add
void apr_optional_hook_add(const char *szName, void(*pfn)(void), const char *const *aszPre, const char *const *aszSucc, int nOrder)