mariadb/src/ydb_load.h

/* -*- mode: C; c-basic-offset: 4 -*- */
#ifndef YDB_LOAD_H
#define YDB_LOAD_H

#ident "Copyright (c) 2010 Tokutek Inc.  All rights reserved."

/*  ydb functions used by loader
 */



// When the loader is created, it makes this call.
// For each dictionary to be loaded, replace old iname in directory
// with a newly generated iname.  This will also take a write lock
// on the directory entries.  The write lock will be released when
// the transaction of the loader is completed.
// If the transaction commits, the new inames are in place.
// If the transaction aborts, the old inames will be restored.
// The new inames are returned to the caller.  
// It is the caller's responsibility to free them.
// If "mark_as_loader" is true, then include a mark in the iname
// to indicate that the file is created by the brt loader.
// Return 0 on success (could fail if write lock not available).
int ydb_load_inames(DB_ENV * env,
		    DB_TXN * txn,
		    int N,
		    DB * dbs[/*N*/],
		    /*out*/ char * new_inames_in_env[N],
                    LSN *load_lsn,
		    BOOL mark_as_loader);

// Wrapper to ydb_load_inames if you are not holding the ydb lock.
int locked_ydb_load_inames(DB_ENV * env,
                           DB_TXN * txn,
                           int N,
                           DB * dbs[/*N*/],
                           /*out*/ char * new_inames_in_env[N],
                           LSN *load_lsn,
			   BOOL mark_as_loader);



#endif