标题: apache 源码 的apr包中 *APR_POOL_DECLARE_ACCESSOR() 的含义是什么 [打印本页] 作者: dangyadang 时间: 2010-12-08 14:32 标题: apache 源码 的apr包中 *APR_POOL_DECLARE_ACCESSOR() 的含义是什么 apr的apr_pool.h中，关于宏 APR_POOL_DECLARE_ACCESSOR() 的含义是什么？
看了给的说明，也没弄明白到底什么意思？各位大侠指点下好么？
/*
* APR_POOL_DECLARE_ACCESSOR() is used in a header file to declare the
* accessor function. A typical usage and result would be:
* <pre>
* APR_POOL_DECLARE_ACCESSOR(file);
* becomes:
* APR_DECLARE(apr_pool_t *) apr_file_pool_get(apr_file_t *ob);
* </pre>
* @remark Doxygen unwraps this macro (via doxygen.conf) to provide
* actual help for each specific occurance of apr_foo_pool_get.
* @remark the linkage is specified for APR. It would be possible to expand
* the macros to support other linkages.
*/
#define APR_POOL_DECLARE_ACCESSOR(type) \
APR_DECLARE(apr_pool_t *) apr_##type##_pool_get \
(const apr_##type##_t *the##type)