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package lodbc
import (
"database/sql/driver"
"github.com/LukeMauldin/lodbc/odbc"
"runtime"
"syscall"
"unsafe"
)
// Implements type database/sql/driver Driver interface
type lodbcDriver struct {
}
// Returns a new connection to the database
func (d *lodbcDriver) Open(name string) (driver.Conn, error) {
// Allocate the connection handle
var connHandle odbc.SQLHandle
ret := odbc.SQLAllocHandle(odbc.SQL_HANDLE_DBC, envHandle, &connHandle)
if isError(ret) {
return nil, errorEnvironment(envHandle)
}
// Establish the connection with the database
nameSqlPtr := (*odbc.SQLCHAR)(unsafe.Pointer(syscall.StringToUTF16Ptr(name)))
ret = odbc.SQLDriverConnect(connHandle, 0, nameSqlPtr, odbc.SQLSMALLINT(odbc.SQL_NTS), nil, 0, nil, odbc.SQL_DRIVER_NOPROMPT)
if isError(ret) {
return nil, errorConnection(connHandle)
}
// Create new connection
var conn = &connection{handle: connHandle, isTransactionActive: false, statements: make(map[driver.Stmt]bool, 0)}
//Add a finalizer
runtime.SetFinalizer(conn, (*connection).Close)
return conn, nil
}