return ok; \
\
pHook=(ns##_LINK_##name##_t *)_hooks.link_##name->elts; \
for(n=0 ; n < _hooks.link_##name->nelts ; ++n) \
{ \
rv=pHook[n].pFunc args_use; \
\
if(rv != ok && rv != decline) \
return rv; \
} \
return ok; \
}
open_logs挂钩就是属于这种类型，其在config.c中的定义如下：
AP_IMPLEMENT_HOOK_RUN_ALL(int, open_logs,
(apr_pool_t *pconf, apr_pool_t *plog,
apr_pool_t *ptemp, server_rec *s),
(pconf, plog, ptemp, s), OK, DECLINED)
因此将它展开后的结果如下：
AP_DECLARE(int) ap_run_open_logs(apr_pool_t *pconf, apr_pool_t *plog,
apr_pool_t *ptemp, server_rec *s)
{
ap_LINK_open_logs_t *pHook;
int n;
ret rv;
if(!_hooks.link_open_logs)
return ok;
pHook=(ap_LINK_open_logs_t *)_hooks.link_open_logs->elts; \
for(n=0 ; n < _hooks.link_open_logs->nelts ; ++n) \
{
rv=pHook[n].pFunc(pconf, plog, ptemp, s);
if(rv != ok && rv != decline) \
return rv;
}
