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Viewing changes to drizzled/memory/sql_alloc.h

  • Committer: Stewart Smith
  • Author(s): Vasil Dimov, Stewart Smith
  • Date: 2010-12-20 02:24:00 UTC
  • mto: (2021.1.2 build)
  • mto: This revision was merged to the branch mainline in revision 2022.
  • Revision ID: stewart@flamingspork.com-20101220022400-0p9lvvppwgaowdju
Merge Revision revid:vasil.dimov@oracle.com-20101102165720-164z3666y3tut4c2 from MySQL InnoDB

Original revid:vasil.dimov@oracle.com-20101102165720-164z3666y3tut4c2

Original Authors: Vasil Dimov <vasil.dimov@oracle.com>
Original commit message:
Fix Bug#53046 dict_update_statistics_low can still be run concurrently on same table

Replace the array of mutexes that used to protect
dict_index_t::stat_n_diff_key_vals[] with an array of rw locks that protects
all the stats related members in dict_table_t and all of its indexes.

Approved by:    Jimmy (rb://503)

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drizzled/memory/sql_alloc.h
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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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 *
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 *  Copyright (C) 2008 Sun Microsystems, Inc.
 
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 *  Copyright (C) 2008 Sun Microsystems
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 *
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 *  This program is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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 */
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#ifndef DRIZZLED_MEMORY_SQL_ALLOC_H
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#define DRIZZLED_MEMORY_SQL_ALLOC_H
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#include <unistd.h>
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#include <drizzled/memory/root.h>
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#include <drizzled/visibility.h>
 
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#include "drizzled/memory/root.h"
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namespace drizzled
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{
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char *sql_strmake(const char *str, size_t len);
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void *sql_memdup(const void * ptr, size_t size);
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class DRIZZLED_API SqlAlloc
 
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class SqlAlloc
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{
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public:
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  static void *operator new(size_t size);