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  • Committer: edam
  • Date: 2010-01-31 21:12:21 UTC
  • Revision ID: edam@waxworlds.org-20100131211221-5xtrhfrchozhk326
- rewrote transaction classes and added transaction_guard
- removed leftover code (sqlite_busy error)
- added tests for transactions

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src/transaction.cc
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#include <sqlite3cc/database.h>
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#include <sqlite3cc/exception.h>
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#include <boost/thread.hpp>
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#include <boost/lexical_cast.hpp>
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sqlite::basic_transaction::basic_transaction(
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void sqlite::basic_transaction::begin()
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{
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        _database.exec( "BEGIN" );
 
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        int error_code = _database.exec( "BEGIN" );
 
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        if( error_code != SQLITE_OK ) throw sqlite_error( error_code );
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}
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void sqlite::basic_transaction::commit()
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{
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        _database.exec( "COMMIT" );
 
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        int error_code = _database.exec( "COMMIT" );
 
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        if( error_code != SQLITE_OK ) throw sqlite_error( error_code );
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}
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void sqlite::basic_transaction::rollback()
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{
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        _database.exec( "ROLLBACK" );
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}
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sqlite::immediate_transaction::immediate_transaction(
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        database &database )
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        :
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        basic_transaction( database )
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{
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}
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void sqlite::immediate_transaction::begin()
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{
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        _database.exec( "BEGIN IMMEDIATE" );
 
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        int error_code = _database.exec( "ROLLBACK" );
 
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        if( error_code != SQLITE_OK ) throw sqlite_error( error_code );
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}
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void sqlite::exclusive_transaction::begin()
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{
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        _database.exec( "BEGIN EXCLUSIVE" );
 
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        int error_code = _database.exec( "BEGIN EXCLUSIVE" );
 
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        if( error_code != SQLITE_OK ) throw sqlite_error( error_code );
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}
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void sqlite::recursive_transaction::begin()
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{
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        _database.exec( "SAVEPOINT " + _sp_name );
 
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        int error_code = _database.exec( "SAVEPOINT " + _sp_name );
 
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        if( error_code != SQLITE_OK ) throw sqlite_error( error_code );
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}
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void sqlite::recursive_transaction::commit()
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{
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        _database.exec( "RELEASE " + _sp_name );
 
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        int error_code = _database.exec( "RELEASE " + _sp_name );
 
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        if( error_code != SQLITE_OK ) throw sqlite_error( error_code );
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}
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void sqlite::recursive_transaction::rollback()
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{
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        _database.exec( "ROLLBACK TO " + _sp_name );
 
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        int error_code = _database.exec( "ROLLBACK TO " + _sp_name );
 
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        if( error_code != SQLITE_OK ) throw sqlite_error( error_code );
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        // we have rolled back this transaction's savepoint, but the savepoint will
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        // remain on the transaction stack unless we also release it
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        _database.exec( "RELEASE " + _sp_name );
 
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        error_code = _database.exec( "RELEASE " + _sp_name );
 
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        if( error_code != SQLITE_OK ) throw sqlite_error( error_code );
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}