~drizzle-trunk/drizzle/development : contents of drizzled/lock.h at revision 2180

~drizzle-trunk/drizzle/development : (revision 2180)

/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
 *
 *  Copyright (C) 2008 Sun Microsystems, Inc.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; version 2 of the License.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#ifndef DRIZZLED_LOCK_H
#define DRIZZLED_LOCK_H

#include <vector>
#include <drizzled/thr_lock.h>
#include <drizzled/locking/global.h>

namespace drizzled
{

class Session;
class Table;
class TableList;

class DrizzleLock
{
public:
  Table **getTable()
  {
    return &table[0];
  }

  THR_LOCK_DATA **getLocks()
  {
    return &locks[0];
  }

  size_t sizeTable() const
  {
    return table.size();
  }

  void resizeTable(size_t arg)
  {
    table.resize(arg);
  }

  size_t sizeLock() const
  {
    return lock_count;
  }

  void resetLock()
  {
    lock_count= 0;
  }

  void setLock(size_t arg)
  {
    lock_count= arg;
  }

  void reset(void);
  void unlock(uint32_t count);

  DrizzleLock(size_t table_count_arg)
  {
    table.resize(table_count_arg);
    lock_count= table_count_arg * 2;
    locks.resize(lock_count);
  }

private:
  uint32_t lock_count;

  std::vector<Table *> table;
  std::vector<THR_LOCK_DATA *> locks;
  std::vector<THR_LOCK_DATA *> copy_of;
};

/* lockTables() and open_table() flags bits */
#define DRIZZLE_LOCK_IGNORE_GLOBAL_READ_LOCK      0x0001
#define DRIZZLE_LOCK_IGNORE_FLUSH                 0x0002
#define DRIZZLE_LOCK_NOTIFY_IF_NEED_REOPEN        0x0004
#define DRIZZLE_OPEN_TEMPORARY_ONLY               0x0008

} /* namespace drizzled */

#endif /* DRIZZLED_LOCK_H */

670.2.4 by Monty Taylor Removed more stuff from the headers.	1	/* -- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; --
	2	* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
	3	*
1999.6.1 by kalebral at gmail update Copyright strings to a more common format to help with creating the master debian copyright file	4	* Copyright (C) 2008 Sun Microsystems, Inc.
670.2.4 by Monty Taylor Removed more stuff from the headers.	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; version 2 of the License.
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program; if not, write to the Free Software
	17	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	18	*/
	19
	20	#ifndef DRIZZLED_LOCK_H
	21	#define DRIZZLED_LOCK_H
	22
1859.2.3 by Brian Aker Move lock over to lock.h (out of sessio.h).	23	#include <vector>
2173.2.1 by Monty Taylor Fixes incorrect usage of include	24	#include <drizzled/thr_lock.h>
2173.2.1 by Monty Taylor Fixes incorrect usage of include	25	#include <drizzled/locking/global.h>
670.2.4 by Monty Taylor Removed more stuff from the headers.	26
1280.1.10 by Monty Taylor Put everything in drizzled into drizzled namespace.	27	namespace drizzled
	28	{
	29
670.2.4 by Monty Taylor Removed more stuff from the headers.	30	class Session;
	31	class Table;
	32	class TableList;
1859.2.3 by Brian Aker Move lock over to lock.h (out of sessio.h).	33
	34	class DrizzleLock
	35	{
	36	public:
	37	Table **getTable()
	38	{
	39	return &table[0];
	40	}
	41
	42	THR_LOCK_DATA **getLocks()
	43	{
	44	return &locks[0];
	45	}
	46
1948.2.2 by Brian Aker Merge in change where we remove the need for the additional variable for	47	size_t sizeTable() const
	48	{
	49	return table.size();
	50	}
	51
	52	void resizeTable(size_t arg)
	53	{
	54	table.resize(arg);
1859.2.3 by Brian Aker Move lock over to lock.h (out of sessio.h).	55	}
	56
1948.2.3 by Brian Aker Update on lock count.	57	size_t sizeLock() const
	58	{
	59	return lock_count;
	60	}
	61
1859.2.3 by Brian Aker Move lock over to lock.h (out of sessio.h).	62	void resetLock()
	63	{
	64	lock_count= 0;
	65	}
	66
	67	void setLock(size_t arg)
	68	{
	69	lock_count= arg;
	70	}
	71
1859.2.4 by Brian Aker A few cleanups.	72	void reset(void);
	73	void unlock(uint32_t count);
	74
1948.2.2 by Brian Aker Merge in change where we remove the need for the additional variable for	75	DrizzleLock(size_t table_count_arg)
1859.2.3 by Brian Aker Move lock over to lock.h (out of sessio.h).	76	{
1948.2.2 by Brian Aker Merge in change where we remove the need for the additional variable for	77	table.resize(table_count_arg);
	78	lock_count= table_count_arg * 2;
1859.2.3 by Brian Aker Move lock over to lock.h (out of sessio.h).	79	locks.resize(lock_count);
	80	}
	81
1948.2.2 by Brian Aker Merge in change where we remove the need for the additional variable for	82	private:
1948.2.3 by Brian Aker Update on lock count.	83	uint32_t lock_count;
1948.2.3 by Brian Aker Update on lock count.	84
1948.2.2 by Brian Aker Merge in change where we remove the need for the additional variable for	85	std::vector<Table *> table;
	86	std::vector<THR_LOCK_DATA *> locks;
	87	std::vector<THR_LOCK_DATA *> copy_of;
1859.2.3 by Brian Aker Move lock over to lock.h (out of sessio.h).	88	};
670.2.4 by Monty Taylor Removed more stuff from the headers.	89
1910.2.7 by Brian Aker Rename lock methods to be style + well make sense.	90	/* lockTables() and open_table() flags bits */
670.2.4 by Monty Taylor Removed more stuff from the headers.	91	#define DRIZZLE_LOCK_IGNORE_GLOBAL_READ_LOCK 0x0001
	92	#define DRIZZLE_LOCK_IGNORE_FLUSH 0x0002
	93	#define DRIZZLE_LOCK_NOTIFY_IF_NEED_REOPEN 0x0004
	94	#define DRIZZLE_OPEN_TEMPORARY_ONLY 0x0008
	95
1280.1.10 by Monty Taylor Put everything in drizzled into drizzled namespace.	96	} /* namespace drizzled */
	97
670.2.4 by Monty Taylor Removed more stuff from the headers.	98	#endif /* DRIZZLED_LOCK_H */