mpool(3) Library Functions Manual mpool(3) mpool - (libc -lc) #include #include MPOOL *mpool_open(DBT *key, int fd, pgno_t pagesize, pgno_t maxcache); void mpool_filter(MPOOL *mp, typeof(void (void *, pgno_t, void *)) *pgin, typeof(void (void *, pgno_t, void *)) *pgout, void *pgcookie); void *mpool_new(MPOOL *mp, pgno_t *pgnoaddr); void *mpool_get(MPOOL *mp, pgno_t pgno, unsigned int flags); int mpool_put(MPOOL *mp, void *pgaddr, unsigned int flags); int mpool_sync(MPOOL *mp); int mpool_close(MPOOL *mp); : glibc 2.1. glibc 2.2 glibc . (APIs) libdb . Mpool . . mpool_open() . key . . key NULL . fd . key NULL fd. pagesize . maxcache . . mpool_filter() . pgin . pgout . pgcookie . mpool_new() MPOOL . pgnoaddr. NULL errno. mpool_get() MPOOL . . NULL errno. flags . mpool_put() pgaddr. pgaddr mpool_get() mpool_new(). ORing : MPOOL_DIRTY . mpool_put() 0 -1 . mpool_sync() MPOOL . mpool_sync() 0 -1 . mpool_close() . . mpool_close() 0 -1 . mpool_open() errno malloc(3). mpool_get() errno : EINVAL . mpool_new() mpool_get() errno read(2) write(2) malloc(3). mpool_sync() errno write(2). mpool_close() errno free(3). BSD. btree(3) dbopen(3) hash(3) recno(3) 3 . . : . 4.4 Berkeley Distribution 17 2025 mpool(3)