/sqlite3cc

To get this branch, use:
bzr branch http://bzr.ed.am/sqlite3cc

« back to all changes in this revision

Viewing changes to src/transaction.cc

  • Committer: edam
  • Date: 2010-01-28 12:21:03 UTC
  • Revision ID: edam@waxworlds.org-20100128122103-v3gs6hro5h7ffnhb
- further initial development
- basic support for: queries, rows (query results)
- filename, comment header and project name consistency

Show diffs side-by-side

added added

removed removed

Lines of Context:
src/transaction.cc
23
23
#include <sqlite3cc/transaction.h>
24
24
#include <sqlite3cc/database.h>
25
25
#include <sqlite3cc/exception.h>
26
 
#include <boost/thread.hpp>
27
 
#include <boost/lexical_cast.hpp>
28
 
 
29
 
 
30
 
sqlite::basic_transaction::basic_transaction(
 
26
 
 
27
 
 
28
sqlite::transaction::transaction(
31
29
        database &database )
32
30
        :
33
31
        _database( database )
34
32
{
35
 
}
36
 
 
37
 
 
38
 
void sqlite::basic_transaction::begin()
39
 
{
40
 
        _database.exec( "BEGIN" );
41
 
}
42
 
 
43
 
 
44
 
void sqlite::basic_transaction::commit()
45
 
{
46
 
        _database.exec( "COMMIT" );
47
 
}
48
 
 
49
 
 
50
 
void sqlite::basic_transaction::rollback()
51
 
{
52
 
        _database.exec( "ROLLBACK" );
53
 
}
54
 
 
55
 
 
56
 
sqlite::immediate_transaction::immediate_transaction(
57
 
        database &database )
 
33
        int error_code = _database.exec( "BEGIN" );
 
34
        if( error_code != SQLITE_OK ) throw sqlite_error( error_code );
 
35
}
 
36
 
 
37
 
 
38
sqlite::transaction::transaction(
 
39
        database &database,
 
40
        const std::string &begin_sql,
 
41
        const std::string &rollback_sql )
58
42
        :
59
 
        basic_transaction( database )
60
 
{
61
 
}
62
 
 
63
 
 
64
 
void sqlite::immediate_transaction::begin()
65
 
{
66
 
        _database.exec( "BEGIN IMMEDIATE" );
 
43
        _database( database ),
 
44
        _rollback_sql( rollback_sql )
 
45
{
 
46
        int error_code = _database.exec( begin_sql );
 
47
        if( error_code != SQLITE_OK ) throw sqlite_error( error_code );
 
48
}
 
49
 
 
50
 
 
51
sqlite::transaction::~transaction() throw( )
 
52
{
 
53
        rollback();
 
54
}
 
55
 
 
56
 
 
57
void sqlite::transaction::commit()
 
58
{
 
59
        int error_code = _database.exec( "COMMIT" );
 
60
        if( error_code != SQLITE_OK ) throw sqlite_error( error_code );
 
61
}
 
62
 
 
63
 
 
64
void sqlite::transaction::rollback()
 
65
{
 
66
        int error_code = _database.exec(
 
67
                _rollback_sql.empty()? "ROLLBACK" : _rollback_sql );
 
68
        if( error_code != SQLITE_OK ) throw sqlite_error( error_code );
67
69
}
68
70
 
69
71
 
70
72
sqlite::exclusive_transaction::exclusive_transaction(
71
73
        database &database )
72
74
        :
73
 
        basic_transaction( database )
74
 
{
75
 
}
76
 
 
77
 
 
78
 
void sqlite::exclusive_transaction::begin()
79
 
{
80
 
        _database.exec( "BEGIN EXCLUSIVE" );
81
 
}
82
 
 
83
 
 
84
 
sqlite::recursive_transaction::recursive_transaction(
85
 
        database &database )
86
 
        :
87
 
        basic_transaction( database )
88
 
{
89
 
        static unsigned long long i = 0;
90
 
        unsigned long long my_i;
91
 
        static boost::mutex mutex;
92
 
        {
93
 
                boost::lock_guard< boost::mutex > lock( mutex );
94
 
                my_i = i++;
95
 
        }
96
 
        _sp_name = "_" + boost::lexical_cast< std::string >( my_i++ );
97
 
}
98
 
 
99
 
 
100
 
void sqlite::recursive_transaction::begin()
101
 
{
102
 
        _database.exec( "SAVEPOINT " + _sp_name );
103
 
}
104
 
 
105
 
 
106
 
void sqlite::recursive_transaction::commit()
107
 
{
108
 
        _database.exec( "RELEASE " + _sp_name );
109
 
}
110
 
 
111
 
 
112
 
void sqlite::recursive_transaction::rollback()
113
 
{
114
 
        _database.exec( "ROLLBACK TO " + _sp_name );
115
 
 
116
 
        // we have rolled back this transaction's savepoint, but the savepoint will
117
 
        // remain on the transaction stack unless we also release it
118
 
        _database.exec( "RELEASE " + _sp_name );
 
75
        transaction( database, "BEGIN EXCLUSIVE" )
 
76
{
119
77
}