Drizzled Public API Documentation

resource_context.cc
1 /* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
2  * vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
3  *
4  * Copyright (C) 2008 Sun Microsystems, Inc.
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 #include <config.h>
21 #include <drizzled/resource_context.h>
22 
23 #include <cassert>
24 
25 using namespace std;
26 
27 namespace drizzled
28 {
29 
31 void ResourceContext::reset()
32 {
33  monitored= NULL;
34  xa_resource_manager= NULL;
35  trx_storage_engine= NULL;
36  modified_data= false;
37 }
38 
39 void ResourceContext::markModifiedData()
40 {
41  assert(isStarted());
42  modified_data= true;
43 }
44 
45 bool ResourceContext::hasModifiedData() const
46 {
47  assert(isStarted());
48  return modified_data;
49 }
50 
51 bool ResourceContext::isStarted() const
52 {
53  return monitored != NULL;
54 }
55 
56 void ResourceContext::coalesceWith(const ResourceContext *stmt_ctx)
57 {
58  /*
59  Must be called only after the transaction has been started.
60  Can be called many times, e.g. when we have many
61  read-write statements in a transaction.
62  */
63  assert(isStarted());
64  if (stmt_ctx->hasModifiedData())
65  markModifiedData();
66 }
67 
68 } /* namespace drizzled */
TODO: Rename this file - func.h is stupid.