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
|
#include "stdafx.h"
#include "Transaction.h"
#include "SQL.h"
namespace sql {
static const Transaction::End endDone = Transaction::End(-1); // Sentinel value.
Transaction::Transaction(DBConnection *c) : state(new (c) State(c, endRollback)) {}
Transaction::Transaction(DBConnection *c, End end) : state(new (c) State(c, end)) {}
Transaction::~Transaction() {
state->unref();
}
Transaction::Transaction(const Transaction &other) : state(other.state) {
state->ref();
}
Transaction &Transaction::operator =(const Transaction &other) {
other.state->ref();
state->unref();
state = other.state;
return *this;
}
void Transaction::commit() {
state->commit();
}
void Transaction::rollback() {
state->rollback();
}
/**
* State.
*/
Transaction::State::State(DBConnection *c, End end) : connection(c), parent(c->transaction), end(end), refs(1) {
c->transaction = this;
if (parent == null)
c->beginTransaction();
}
void Transaction::State::finish() {
if (connection == null)
return;
if (connection->transaction == this) {
connection->transaction = parent;
if (parent == null && end != endNothing && end != endDone)
connection->endTransaction(end);
}
connection = null;
end = endDone;
}
void Transaction::State::commit() {
if (end != endDone) {
end = endDone;
connection->endTransaction(endCommit);
}
}
void Transaction::State::rollback() {
if (end != endDone) {
end = endDone;
connection->endTransaction(endRollback);
}
}
}
|
