blob: 80432b889786b5ea6d540220c2f1d43027eabb92 (
plain)
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
|
// Copyright 2011 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "sql/transaction.h"
#include "base/check.h"
#include "base/sequence_checker.h"
#include "sql/database.h"
namespace sql {
Transaction::Transaction(Database* database) : database_(*database) {
DCHECK(database);
}
Transaction::~Transaction() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
#if DCHECK_IS_ON()
DCHECK(begin_called_)
<< "Begin() not called immediately after Transaction creation";
#endif // DCHECK_IS_ON()
if (is_active_)
database_.RollbackTransaction();
}
bool Transaction::Begin() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
#if DCHECK_IS_ON()
DCHECK(!begin_called_) << __func__ << " already called";
begin_called_ = true;
#endif // DCHECK_IS_ON()
DCHECK(!is_active_);
is_active_ = database_.BeginTransaction();
return is_active_;
}
void Transaction::Rollback() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
#if DCHECK_IS_ON()
DCHECK(begin_called_) << __func__ << " called before Begin()";
DCHECK(!commit_called_) << __func__ << " called after Commit()";
DCHECK(!rollback_called_) << __func__ << " called twice";
rollback_called_ = true;
#endif // DCHECK_IS_ON()
DCHECK(is_active_) << __func__ << " called after Begin() failed";
is_active_ = false;
database_.RollbackTransaction();
}
bool Transaction::Commit() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
#if DCHECK_IS_ON()
DCHECK(begin_called_) << __func__ << " called before Begin()";
DCHECK(!rollback_called_) << __func__ << " called after Rollback()";
DCHECK(!commit_called_) << __func__ << " called after Commit()";
commit_called_ = true;
#endif // DCHECK_IS_ON()
DCHECK(is_active_) << __func__ << " called after Begin() failed";
is_active_ = false;
return database_.CommitTransaction();
}
} // namespace sql
|
