blob: b425ed861b9656ab6e83c0ebbcc7a0c24c01007d (
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
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
96
97
98
99
100
101
|
// file : odb/sqlite/transaction-impl.cxx
// author : Boris Kolpackov <boris@codesynthesis.com>
// copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC
// license : GNU GPL v2; see accompanying LICENSE file
#include <odb/sqlite/database.hxx>
#include <odb/sqlite/connection.hxx>
#include <odb/sqlite/statement.hxx>
#include <odb/sqlite/statement-cache.hxx>
#include <odb/sqlite/transaction-impl.hxx>
namespace odb
{
namespace sqlite
{
transaction_impl::
transaction_impl (database_type& db, lock l)
: odb::transaction_impl (db), lock_ (l)
{
}
transaction_impl::
transaction_impl (connection_ptr c, lock l)
: odb::transaction_impl (c->database (), *c),
connection_ (c),
lock_ (l)
{
}
transaction_impl::
~transaction_impl ()
{
}
void transaction_impl::
start ()
{
// Grab a connection if we don't already have one.
//
if (connection_ == 0)
{
connection_ = static_cast<database_type&> (database_).connection ();
odb::transaction_impl::connection_ = connection_.get ();
}
statement_cache& sc (connection_->statement_cache ());
switch (lock_)
{
case deferred:
{
sc.begin_statement ().execute ();
break;
}
case immediate:
{
sc.begin_immediate_statement ().execute ();
break;
}
case exclusive:
{
sc.begin_exclusive_statement ().execute ();
break;
}
}
}
void transaction_impl::
commit ()
{
// Reset active and finilize uncached statements. Active statements
// will prevent COMMIT from completing (write statements) or releasing
// the locks (read statements). Finilization of uncached statements is
// needed to release the connection.
//
connection_->clear ();
connection_->statement_cache ().commit_statement ().execute ();
// Release the connection.
//
connection_.reset ();
}
void transaction_impl::
rollback ()
{
// Reset active and finilize uncached statements. Active statements
// will prevent ROLLBACK from completing. Finilization of uncached
// statements is needed to release the connection.
//
connection_->clear ();
connection_->statement_cache ().rollback_statement ().execute ();
// Release the connection.
//
connection_.reset ();
}
}
}
|