Berkeley DB

DbEnv::memp_stat

						#include <db_cxx.h>
						extern "C" {
						typedef void *(*db_malloc_fcn_type)(size_t);
						};
						int
						DbEnv::memp_stat(DB_MPOOL_STAT **gsp,
						DB_MPOOL_FSTAT *(*fsp)[], db_malloc_fcn_type db_malloc);
					

Description

The DbEnv::memp_stat method method creates statistical structures and copies pointers to them into user-specified memory locations. The statistics include the number of files participating in the pool, the active pages in the pool, and information about how effective the cache has been.

Statistical structures are created in allocated memory. If db_malloc is non-NULL, it is called to allocate the memory; otherwise, the library function malloc(3) is used. The function db_malloc must match the calling conventions of the malloc(3) library ...