1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
|
/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
#include "DtxManager.h"
#include <boost/format.hpp>
#include <iostream>
using qpid::sys::Mutex;
using namespace qpid::broker;
DtxManager::DtxManager(TransactionalStore* const _store) : store(_store) {}
DtxManager::~DtxManager() {}
void DtxManager::start(std::string xid, DtxBuffer::shared_ptr ops)
{
createWork(xid)->add(ops);
}
void DtxManager::join(std::string xid, DtxBuffer::shared_ptr ops)
{
getWork(xid)->add(ops);
}
void DtxManager::recover(std::string xid, std::auto_ptr<TPCTransactionContext> txn, DtxBuffer::shared_ptr ops)
{
createWork(xid)->recover(txn, ops);
}
bool DtxManager::prepare(const std::string& xid)
{
return getWork(xid)->prepare();
}
bool DtxManager::commit(const std::string& xid, bool onePhase)
{
bool result = getWork(xid)->commit(onePhase);
remove(xid);
return result;
}
void DtxManager::rollback(const std::string& xid)
{
getWork(xid)->rollback();
remove(xid);
}
DtxManager::WorkMap::iterator DtxManager::getWork(const std::string& xid)
{
Mutex::ScopedLock locker(lock);
WorkMap::iterator i = work.find(xid);
if (i == work.end()) {
throw ConnectionException(503, boost::format("Unrecognised xid %1%!") % xid);
}
return i;
}
void DtxManager::remove(const std::string& xid)
{
Mutex::ScopedLock locker(lock);
WorkMap::iterator i = work.find(xid);
if (i == work.end()) {
throw ConnectionException(503, boost::format("Unrecognised xid %1%!") % xid);
} else {
work.erase(i);
}
}
DtxManager::WorkMap::iterator DtxManager::createWork(std::string& xid)
{
Mutex::ScopedLock locker(lock);
WorkMap::iterator i = work.find(xid);
if (i != work.end()) {
throw ConnectionException(503, boost::format("Xid %1% is already known (use 'join' to add work to an existing xid)!") % xid);
} else {
return work.insert(xid, new DtxWorkRecord(xid, store)).first;
}
}
|
