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erts/emulator/beam/erl_db_hash.c

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/*

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 * %CopyrightBegin%

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 * 

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 * Copyright Ericsson AB 1998-2009. All Rights Reserved.

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 * 

 

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 *

 

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 * Copyright Ericsson AB 1998-2010. All Rights Reserved.

 

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 *

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 * The contents of this file are subject to the Erlang Public License,

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 * Version 1.1, (the "License"); you may not use this file except in

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 * compliance with the License. You should have received a copy of the

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 * Erlang Public License along with this software. If not, it can be

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 * retrieved online at http://www.erlang.org/.

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 * 

 

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 *

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 * Software distributed under the License is distributed on an "AS IS"

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 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See

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 * the License for the specific language governing rights and limitations

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 * under the License.

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 * 

 

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 *

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 * %CopyrightEnd%

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 */

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                                                              (DbTable *) tb,

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                                                              sizeof(DbTableHashFineLocks));                

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        for (i=0; i<DB_HASH_LOCK_CNT; ++i) {

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            #ifdef ERTS_ENABLE_LOCK_COUNT       

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            erts_rwmtx_init_x(&tb->locks->lck_vec[i].lck, "db_hash_slot", tb->common.the_name); 

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            #else               

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            erts_rwmtx_init(&tb->locks->lck_vec[i].lck, "db_hash_slot");

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            #endif      

 

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            erts_rwmtx_init_x(&tb->locks->lck_vec[i].lck, "db_hash_slot", make_small(i));

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        }

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        /* This important property is needed to guarantee that the buckets

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         * involved in a grow/shrink operation it protected by the same lock:

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