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Viewing changes to plugin/session_dictionary/variables.cc

[patch 106/129] Merge patch for revision 1915 from InnoDB SVN:
revno: 1915
revision-id: svn-v4:16c675df-0fcb-4bc9-8058-dcc011a37293:branches/zip:6130
parent: svn-v4:16c675df-0fcb-4bc9-8058-dcc011a37293:branches/zip:6126
committer: marko
timestamp: Mon 2009-11-02 09:42:56 +0000
message:
  branches/zip: Free all resources at shutdown. Set pointers to NULL, so
  that Valgrind will not complain about freed data structures that are
  reachable via pointers.  This addresses Bug #45992 and Bug #46656.
  
  This patch is mostly based on changes copied from branches/embedded-1.0,
  mainly c5432, c3439, c3134, c2994, c2978, but also some other code was
  copied.  Some added cleanup code is specific to MySQL/InnoDB.
  
  rb://199 approved by Sunny Bains
modified:
  ChangeLog                      2425@16c675df-0fcb-4bc9-8058-dcc011a37293:branches%2Fzip%2FChangeLog
  btr/btr0sea.c                  2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Fbtr%2Fbtr0sea.c
  buf/buf0buf.c                  2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Fbuf%2Fbuf0buf.c
  dict/dict0dict.c               2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Fdict%2Fdict0dict.c
  fil/fil0fil.c                  2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Ffil%2Ffil0fil.c
  ibuf/ibuf0ibuf.c               2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Fibuf%2Fibuf0ibuf.c
  include/btr0sea.h              2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Finclude%2Fbtr0sea.h
  include/dict0dict.h            2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Finclude%2Fdict0dict.h
  include/fil0fil.h              2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Finclude%2Ffil0fil.h
  include/ibuf0ibuf.h            2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Finclude%2Fibuf0ibuf.h
  include/lock0lock.h            2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Finclude%2Flock0lock.h
  include/log0log.h              2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Finclude%2Flog0log.h
  include/log0recv.h             2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Finclude%2Flog0recv.h
  include/mem0mem.h              2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Finclude%2Fmem0mem.h
  include/mem0pool.h             2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Finclude%2Fmem0pool.h
  include/os0file.h              2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Finclude%2Fos0file.h
  include/pars0pars.h            2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Finclude%2Fpars0pars.h
  include/srv0srv.h              2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Finclude%2Fsrv0srv.h
  include/thr0loc.h              2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Finclude%2Fthr0loc.h
  include/trx0i_s.h              1864@16c675df-0fcb-4bc9-8058-dcc011a37293:branches%2Fzip%2Finclude%2Ftrx0i_s.h
  include/trx0purge.h            2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Finclude%2Ftrx0purge.h
  include/trx0rseg.h             2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Finclude%2Ftrx0rseg.h
  include/trx0sys.h              2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Finclude%2Ftrx0sys.h
  include/trx0undo.h             2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Finclude%2Ftrx0undo.h
  include/usr0sess.h             2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Finclude%2Fusr0sess.h
  lock/lock0lock.c               2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Flock%2Flock0lock.c
  log/log0log.c                  2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Flog%2Flog0log.c
  log/log0recv.c                 2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Flog%2Flog0recv.c
  mem/mem0dbg.c                  2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Fmem%2Fmem0dbg.c
  mem/mem0pool.c                 2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Fmem%2Fmem0pool.c
  os/os0file.c                   2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Fos%2Fos0file.c
  os/os0sync.c                   2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Fos%2Fos0sync.c
  os/os0thread.c                 2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Fos%2Fos0thread.c
  pars/lexyy.c                   2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Fpars%2Flexyy.c
  pars/pars0lex.l                2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Fpars%2Fpars0lex.l
  que/que0que.c                  2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Fque%2Fque0que.c
  srv/srv0srv.c                  2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Fsrv%2Fsrv0srv.c
  srv/srv0start.c                2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Fsrv%2Fsrv0start.c
  sync/sync0arr.c                2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Fsync%2Fsync0arr.c
  sync/sync0sync.c               2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Fsync%2Fsync0sync.c
  thr/thr0loc.c                  2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Fthr%2Fthr0loc.c
  trx/trx0i_s.c                  1864@16c675df-0fcb-4bc9-8058-dcc011a37293:branches%2Fzip%2Ftrx%2Ftrx0i_s.c
  trx/trx0purge.c                2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Ftrx%2Ftrx0purge.c
  trx/trx0rseg.c                 2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Ftrx%2Ftrx0rseg.c
  trx/trx0sys.c                  2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Ftrx%2Ftrx0sys.c
  trx/trx0undo.c                 2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Ftrx%2Ftrx0undo.c
  usr/usr0sess.c                 2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Fusr%2Fusr0sess.c
  ut/ut0mem.c                    2@16c675df-0fcb-4bc9-8058-dcc011a37293:trunk%2Fut%2Fut0mem.c
diff:
=== modified file 'ChangeLog'

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Lines of Context:
plugin/session_dictionary/variables.cc
1
 
/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
2
 
 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
3
 
 *
4
 
 *  Copyright (C) 2010 Brian Aker
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; either version 2 of the License, or
9
 
 *  (at your option) any later version.
10
 
 *
11
 
 *  This program is distributed in the hope that it will be useful,
12
 
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13
 
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14
 
 *  GNU General Public License for more details.
15
 
 *
16
 
 *  You should have received a copy of the GNU General Public License
17
 
 *  along with this program; if not, write to the Free Software
18
 
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
19
 
 */
20
 
 
21
 
#include "config.h"
22
 
 
23
 
#include "plugin/session_dictionary/dictionary.h"
24
 
 
25
 
#define LARGEST_USER_VARIABLE_NAME 128
26
 
 
27
 
namespace session_dictionary {
28
 
 
29
 
Variables::Variables() :
30
 
  drizzled::plugin::TableFunction("DATA_DICTIONARY", "USER_DEFINED_VARIABLES")
31
 
{
32
 
  add_field("VARIABLE_NAME", drizzled::plugin::TableFunction::STRING, LARGEST_USER_VARIABLE_NAME, false);
33
 
  add_field("VARIABLE_VALUE", drizzled::plugin::TableFunction::STRING, LARGEST_USER_VARIABLE_NAME, true);
34
 
}
35
 
 
36
 
Variables::Generator::Generator(drizzled::Field **arg) :
37
 
  drizzled::plugin::TableFunction::Generator(arg),
38
 
  user_vars(getSession().getUserVariables()),
39
 
  iter(user_vars.begin())
40
 
{
41
 
}
42
 
 
43
 
Variables::Generator::~Generator()
44
 
{
45
 
}
46
 
 
47
 
bool Variables::Generator::populate()
48
 
{
49
 
  while (iter != user_vars.end())
50
 
  {
51
 
    char buff[LARGEST_USER_VARIABLE_NAME];
52
 
    drizzled::String tmp(buff, sizeof(buff), drizzled::system_charset_info);
53
 
 
54
 
    bool null_value;
55
 
    uint32_t decimals= 4; // arbitrary
56
 
    (*iter).second->val_str(&null_value, &tmp, decimals);
57
 
 
58
 
 
59
 
    // VARIABLE_NAME
60
 
    push((*iter).first);
61
 
    
62
 
    // VARIABLE_VALUE 
63
 
    if (null_value)
64
 
      push();
65
 
    else
66
 
      push(tmp.c_str());
67
 
 
68
 
    iter++;
69
 
 
70
 
    return true;
71
 
  }
72
 
 
73
 
  return false;
74
 
}
75
 
 
76
 
} /* namespace session_dictionary */