func (d *OCI8Driver) Open(dsnString string) (connection driver.Conn, err error) {
var (
conn OCI8Conn
dsn *DSN
)
if dsn, err = ParseDSN(dsnString); err != nil {
return nil, err
}
if rv := C.WrapOCIEnvCreate(
C.OCI_DEFAULT|C.OCI_THREADED,
0); rv.rv != C.OCI_SUCCESS && rv.rv != C.OCI_SUCCESS_WITH_INFO {
// TODO: error handle not yet allocated, we can't get string error from oracle
return nil, errors.New("can't OCIEnvCreate")
} else {
conn.env = rv.ptr
}
if rv := C.WrapOCIHandleAlloc(
conn.env,
C.OCI_HTYPE_ERROR,
0); rv.rv != C.OCI_SUCCESS {
return nil, errors.New("cant allocate error handle")
} else {
conn.err = rv.ptr
}
phost := C.CString(dsn.Connect)
defer C.free(unsafe.Pointer(phost))
puser := C.CString(dsn.Username)
defer C.free(unsafe.Pointer(puser))
ppass := C.CString(dsn.Password)
defer C.free(unsafe.Pointer(ppass))
if rv := C.WrapOCILogon(
(*C.OCIEnv)(conn.env),
(*C.OCIError)(conn.err),
(*C.OraText)(unsafe.Pointer(puser)),
C.ub4(len(dsn.Username)),
(*C.OraText)(unsafe.Pointer(ppass)),
C.ub4(len(dsn.Password)),
(*C.OraText)(unsafe.Pointer(phost)),
C.ub4(len(dsn.Connect))); rv.rv != C.OCI_SUCCESS && rv.rv != C.OCI_SUCCESS_WITH_INFO {
return nil, ociGetError(rv.rv, conn.err)
} else {
conn.svc = rv.ptr
}
conn.location = dsn.Location
conn.transactionMode = dsn.transactionMode
conn.prefetch_rows = dsn.prefetch_rows
conn.prefetch_memory = dsn.prefetch_memory
conn.enableQMPlaceholders = dsn.enableQMPlaceholders
return &conn, nil
}
func (d *OCI8Driver) Open(dsnString string) (connection driver.Conn, err error) {
var (
conn OCI8Conn
dsn *DSN
)
if dsn, err = ParseDSN(dsnString); err != nil {
return nil, err
}
// set safe defaults
conn.attrs = make(Values)
conn.attrs.Set("prefetch_rows", 10)
conn.attrs.Set("prefetch_memory", int64(0))
for k, v := range parseEnviron(os.Environ()) {
conn.attrs.Set(k, v)
}
if rv := C.WrapOCIEnvCreate(
C.OCI_DEFAULT|C.OCI_THREADED,
0); rv.rv != C.OCI_SUCCESS && rv.rv != C.OCI_SUCCESS_WITH_INFO {
// TODO: error handle not yet allocated, we can't get string error from oracle
return nil, errors.New("can't OCIEnvCreate")
} else {
conn.env = rv.ptr
}
if rv := C.WrapOCIHandleAlloc(
conn.env,
C.OCI_HTYPE_ERROR,
0); rv.rv != C.OCI_SUCCESS {
return nil, errors.New("cant allocate error handle")
} else {
conn.err = rv.ptr
}
var host string
if dsn.Host != "" && dsn.SID != "" {
host = fmt.Sprintf("%s:%d/%s", dsn.Host, dsn.Port, dsn.SID)
} else {
host = dsn.SID
}
phost := C.CString(host)
defer C.free(unsafe.Pointer(phost))
puser := C.CString(dsn.Username)
defer C.free(unsafe.Pointer(puser))
ppass := C.CString(dsn.Password)
defer C.free(unsafe.Pointer(ppass))
if rv := C.WrapOCILogon(
(*C.OCIEnv)(conn.env),
(*C.OCIError)(conn.err),
(*C.OraText)(unsafe.Pointer(puser)),
C.ub4(len(dsn.Username)),
(*C.OraText)(unsafe.Pointer(ppass)),
C.ub4(len(dsn.Password)),
(*C.OraText)(unsafe.Pointer(phost)),
C.ub4(len(host))); rv.rv != C.OCI_SUCCESS {
return nil, ociGetError(conn.err)
} else {
conn.svc = rv.ptr
}
conn.location = dsn.Location
conn.transactionMode = dsn.transactionMode
c := &conn
runtime.SetFinalizer(c, (*OCI8Conn).Close)
return c, nil
}