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client.go
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client.go
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package iec61850
// #include <iec61850_client.h>
import "C"
import (
"fmt"
"sync/atomic"
"unsafe"
)
type Client struct {
conn C.IedConnection
connected *atomic.Bool
}
// Settings 连接配置
type Settings struct {
Host string
Port int
ConnectTimeout uint // 连接超时配置,单位:毫秒
RequestTimeout uint // 请求超时配置,单位:毫秒
}
func NewSettings() *Settings {
return &Settings{
Host: "localhost",
Port: 102,
ConnectTimeout: 10000,
RequestTimeout: 10000,
}
}
// NewClient 创建客户端实例
func NewClient(settings *Settings) (*Client, error) {
conn, clientErr := connect(settings)
if err := GetIedClientError(clientErr); err != nil {
return nil, err
}
connected := &atomic.Bool{}
connected.Store(true)
connection := &Client{
conn: conn,
connected: connected,
}
return connection, nil
}
// Write 写单个属性值,不支持Structure
func (c *Client) Write(objectRef string, fc FC, value interface{}) error {
mmsType, err := c.GetVariableSpecType(objectRef, fc)
if err != nil {
return err
}
var (
mmsValue *C.MmsValue
clientError C.IedClientError
)
mmsValue, err = toMmsValue(mmsType, value)
if err != nil {
return err
}
cObjectRef := C.CString(objectRef)
defer C.free(unsafe.Pointer(cObjectRef))
defer C.MmsValue_delete(mmsValue)
C.IedConnection_writeObject(c.conn, &clientError, cObjectRef, C.FunctionalConstraint(fc), mmsValue)
return GetIedClientError(clientError)
}
// ReadBool 读取bool类型值
func (c *Client) ReadBool(objectRef string, fc FC) (bool, error) {
cObjectRef := C.CString(objectRef)
defer C.free(unsafe.Pointer(cObjectRef))
var clientError C.IedClientError
value := C.IedConnection_readBooleanValue(c.conn, &clientError, cObjectRef, C.FunctionalConstraint(fc))
if err := GetIedClientError(clientError); err != nil {
return false, err
}
return bool(value), nil
}
// ReadInt32 读取int32类型值
func (c *Client) ReadInt32(objectRef string, fc FC) (int32, error) {
cObjectRef := C.CString(objectRef)
defer C.free(unsafe.Pointer(cObjectRef))
var clientError C.IedClientError
value := C.IedConnection_readInt32Value(c.conn, &clientError, cObjectRef, C.FunctionalConstraint(fc))
if err := GetIedClientError(clientError); err != nil {
return 0, err
}
return int32(value), nil
}
// ReadInt64 读取int64类型值
func (c *Client) ReadInt64(objectRef string, fc FC) (int64, error) {
cObjectRef := C.CString(objectRef)
defer C.free(unsafe.Pointer(cObjectRef))
var clientError C.IedClientError
value := C.IedConnection_readInt64Value(c.conn, &clientError, cObjectRef, C.FunctionalConstraint(fc))
if err := GetIedClientError(clientError); err != nil {
return 0, err
}
return int64(value), nil
}
// ReadUint32 读取uint32类型值
func (c *Client) ReadUint32(objectRef string, fc FC) (uint32, error) {
cObjectRef := C.CString(objectRef)
defer C.free(unsafe.Pointer(cObjectRef))
var clientError C.IedClientError
value := C.IedConnection_readUnsigned32Value(c.conn, &clientError, cObjectRef, C.FunctionalConstraint(fc))
if err := GetIedClientError(clientError); err != nil {
return 0, err
}
return uint32(value), nil
}
// ReadFloat 读取float类型值
func (c *Client) ReadFloat(objectRef string, fc FC) (float32, error) {
cObjectRef := C.CString(objectRef)
defer C.free(unsafe.Pointer(cObjectRef))
var clientError C.IedClientError
value := C.IedConnection_readFloatValue(c.conn, &clientError, cObjectRef, C.FunctionalConstraint(fc))
if err := GetIedClientError(clientError); err != nil {
return 0, err
}
//源码返回值是C的float,4byte,所以应返回float32,否则会出现其他问题
return float32(value), nil
}
// ReadString 读取string类型值
func (c *Client) ReadString(objectRef string, fc FC) (string, error) {
cObjectRef := C.CString(objectRef)
defer C.free(unsafe.Pointer(cObjectRef))
var clientError C.IedClientError
value := C.IedConnection_readStringValue(c.conn, &clientError, cObjectRef, C.FunctionalConstraint(fc))
if err := GetIedClientError(clientError); err != nil {
return "", err
}
return C.GoString(value), nil
}
// Read 读取属性数据
func (c *Client) Read(objectRef string, fc FC) (interface{}, error) {
var clientError C.IedClientError
cObjectRef := C.CString(objectRef)
defer C.free(unsafe.Pointer(cObjectRef))
mmsValue := C.IedConnection_readObject(c.conn, &clientError, cObjectRef, C.FunctionalConstraint(fc))
if err := GetIedClientError(clientError); err != nil {
return nil, err
}
defer C.MmsValue_delete(mmsValue)
mmsType := MmsType(C.MmsValue_getType(mmsValue))
return c.toGoValue(mmsValue, mmsType), nil
}
func (c *Client) GetLogicalDeviceList() DataModel {
var clientError C.IedClientError
deviceList := C.IedConnection_getLogicalDeviceList(c.conn, &clientError)
var dataModel DataModel
device := deviceList.next
for device != nil {
var ld LD
ld.Data = C2GoStr((*C.char)(device.data))
logicalNodes := C.IedConnection_getLogicalDeviceDirectory(c.conn, &clientError, (*C.char)(device.data))
logicalNode := logicalNodes.next
for logicalNode != nil {
var ln LN
ln.Data = C2GoStr((*C.char)(logicalNode.data))
lnRef := fmt.Sprintf("%s/%s", ld.Data, C2GoStr((*C.char)(logicalNode.data)))
cRef := Go2CStr(lnRef)
defer C.free(unsafe.Pointer(cRef))
dataObjects := C.IedConnection_getLogicalNodeDirectory(c.conn, &clientError, cRef, C.ACSI_CLASS_DATA_OBJECT)
dataObject := dataObjects.next
for dataObject != nil {
var do DO
do.Data = C2GoStr((*C.char)(dataObject.data))
dataObject = dataObject.next
doRef := fmt.Sprintf("%s/%s.%s", C2GoStr((*C.char)(device.data)), C2GoStr((*C.char)(logicalNode.data)), do.Data)
var das []DA
c.GetDAs(doRef, das)
do.DAs = das
ln.DOs = append(ln.DOs, do)
}
C.LinkedList_destroy(dataObjects)
clnRef := Go2CStr(lnRef)
defer C.free(unsafe.Pointer(clnRef))
dataSets := C.IedConnection_getLogicalNodeDirectory(c.conn, &clientError, clnRef, C.ACSI_CLASS_DATA_SET)
dataSet := dataSets.next
for dataSet != nil {
var ds DS
ds.Data = C2GoStr((*C.char)(dataSet.data))
var isDeletable C.bool
dataSetRef := fmt.Sprintf("%s.%s", lnRef, ds.Data)
cdataSetRef := Go2CStr(dataSetRef)
defer C.free(unsafe.Pointer(cdataSetRef))
dataSetMembers := C.IedConnection_getDataSetDirectory(c.conn, &clientError, cdataSetRef, &isDeletable)
if isDeletable {
fmt.Println(fmt.Sprintf(" Data set: %s (deletable)", ds.Data))
} else {
fmt.Println(fmt.Sprintf(" Data set: %s (not deletable)", ds.Data))
}
dataSetMemberRef := dataSetMembers.next
for dataSetMemberRef != nil {
var dsRef DSRef
dsRef.Data = C2GoStr((*C.char)(dataSetMemberRef.data))
ds.DSRefs = append(ds.DSRefs, dsRef)
dataSetMemberRef = dataSetMemberRef.next
}
C.LinkedList_destroy(dataSetMembers)
dataSet = dataSet.next
ln.DSs = append(ln.DSs, ds)
}
C.LinkedList_destroy(dataSets)
clnRef1 := Go2CStr(lnRef)
defer C.free(unsafe.Pointer(clnRef1))
reports := C.IedConnection_getLogicalNodeDirectory(c.conn, &clientError, clnRef1, C.ACSI_CLASS_URCB)
report := reports.next
for report != nil {
var r URReport
r.Data = C2GoStr((*C.char)(report.data))
ln.URReports = append(ln.URReports, r)
report = report.next
}
C.LinkedList_destroy(reports)
clnRef2 := Go2CStr(lnRef)
defer C.free(unsafe.Pointer(clnRef2))
reports = C.IedConnection_getLogicalNodeDirectory(c.conn, &clientError, clnRef2, C.ACSI_CLASS_BRCB)
report = reports.next
for report != nil {
var r BRReport
r.Data = C2GoStr((*C.char)(report.data))
ln.BRReports = append(ln.BRReports, r)
report = report.next
}
C.LinkedList_destroy(reports)
ld.LNs = append(ld.LNs, ln)
logicalNode = logicalNode.next
}
C.LinkedList_destroy(logicalNodes)
dataModel.LDs = append(dataModel.LDs, ld)
device = device.next
}
C.LinkedList_destroy(deviceList)
return dataModel
}
func (c *Client) GetDAs(doRef string, das []DA) {
var clientError C.IedClientError
cdoRef := Go2CStr(doRef)
defer C.free(unsafe.Pointer(cdoRef))
dataAttributes := C.IedConnection_getDataDirectory(c.conn, &clientError, cdoRef)
defer C.LinkedList_destroy(dataAttributes)
if dataAttributes != nil {
dataAttribute := dataAttributes.next
for dataAttribute != nil {
var da DA
da.Data = C2GoStr((*C.char)(dataAttribute.data))
das = append(das, da)
dataAttribute = dataAttribute.next
daRef := fmt.Sprintf("%s.%s", doRef, da.Data)
c.GetDAs(daRef, das)
}
}
}
// ReadDataSet 读取DataSet
func (c *Client) ReadDataSet(objectRef string) ([]*MmsValue, error) {
cObjectRef := C.CString(objectRef)
defer C.free(unsafe.Pointer(cObjectRef))
var clientError C.IedClientError
dataSet := C.IedConnection_readDataSetValues(c.conn, &clientError, cObjectRef, nil)
if err := GetIedClientError(clientError); err != nil {
return nil, err
}
defer C.ClientDataSet_destroy(dataSet)
dataSetValues := C.ClientDataSet_getValues(dataSet)
// 长度
dataSetSize := int(C.ClientDataSet_getDataSetSize(dataSet))
mmsValues := make([]*MmsValue, dataSetSize)
for i := 0; i < dataSetSize; i++ {
value := C.MmsValue_getElement(dataSetValues, C.int(i))
mmsType := MmsType(C.MmsValue_getType(value))
mmsValue := &MmsValue{
Type: mmsType,
Value: c.toGoValue(value, mmsType),
}
mmsValues[i] = mmsValue
}
return mmsValues, nil
}
// Close 关闭连接
func (c *Client) Close() {
if c.conn != nil && c.connected.CompareAndSwap(true, false) {
C.IedConnection_destroy(c.conn)
}
}
// GetVariableSpecType 获取类型规格
func (c *Client) GetVariableSpecType(objectReference string, fc FC) (MmsType, error) {
var clientError C.IedClientError
cObjectRef := C.CString(objectReference)
defer C.free(unsafe.Pointer(cObjectRef))
// 获取类型
spec := C.IedConnection_getVariableSpecification(c.conn, &clientError, cObjectRef, C.FunctionalConstraint(fc))
if err := GetIedClientError(clientError); err != nil {
return 0, err
}
defer C.MmsVariableSpecification_destroy(spec)
mmsType := MmsType(C.MmsVariableSpecification_getType(spec))
switch mmsType {
case Integer:
i := int(spec.typeSpec[0])
switch i {
case 8:
return Int8, nil
case 16:
return Int16, nil
case 32:
return Int32, nil
default:
return Int64, nil
}
case Unsigned:
switch int(spec.typeSpec[0]) {
case 8:
return Uint8, nil
case 16:
return Uint16, nil
default:
return Uint32, nil
}
default:
return mmsType, fmt.Errorf("unsupported type %d", mmsType)
}
}
func (c *Client) toGoValue(mmsValue *C.MmsValue, mmsType MmsType) interface{} {
var value interface{}
switch mmsType {
case Integer:
value = int64(C.MmsValue_toInt64(mmsValue))
case Unsigned:
value = uint32(C.MmsValue_toUint32(mmsValue))
case Boolean:
value = bool(C.MmsValue_getBoolean(mmsValue))
case Float:
value = float32(C.MmsValue_toFloat(mmsValue))
case String, VisibleString:
value = C.GoString(C.MmsValue_toString(mmsValue))
case Structure, Array:
value = c.toGoStructure(mmsValue, mmsType)
case BitString:
value = uint32(C.MmsValue_getBitStringAsInteger(mmsValue))
case OctetString:
size := uint16(C.MmsValue_getOctetStringSize(mmsValue))
bytes := make([]byte, size)
for i := 0; i < int(size); i++ {
bytes[i] = uint8(C.MmsValue_getOctetStringOctet(mmsValue, C.int(i)))
}
value = bytes
case BinaryTime:
value = uint64(C.MmsValue_getBinaryTimeAsUtcMs(mmsValue))
case UTCTime:
value = uint32(C.MmsValue_toUnixTimestamp(mmsValue))
default:
panic(fmt.Sprintf("unsupported type %d", mmsType))
}
return value
}
func (c *Client) toGoStructure(mmsValue *C.MmsValue, mmsType MmsType) []*MmsValue {
if mmsType != Structure {
return nil
}
mmsValues := make([]*MmsValue, 0)
for i := 0; ; i++ {
value := C.MmsValue_getElement(mmsValue, C.int(i))
// 读不到表示节点下没有属性了
if value == nil {
return mmsValues
}
valueType := MmsType(C.MmsValue_getType(value))
mmsValues = append(mmsValues, &MmsValue{
Type: valueType,
Value: c.toGoValue(value, valueType),
})
}
}
func (c *Client) getSubElementValue(sgcbVal *C.MmsValue, sgcbVarSpec *C.MmsVariableSpecification, name string) interface{} {
mmsPath := C.CString(name)
defer C.free(unsafe.Pointer(mmsPath))
mmsValue := C.MmsValue_getSubElement(sgcbVal, sgcbVarSpec, mmsPath)
defer C.MmsValue_delete(mmsValue)
return c.toGoValue(mmsValue, MmsType(C.MmsValue_getType(mmsValue)))
}
// connect 建立连接
func connect(settings *Settings) (C.IedConnection, C.IedClientError) {
conn := C.IedConnection_create()
C.IedConnection_setConnectTimeout(conn, C.uint(settings.ConnectTimeout))
C.IedConnection_setRequestTimeout(conn, C.uint(settings.RequestTimeout))
host := C.CString(settings.Host)
// 释放内存
defer C.free(unsafe.Pointer(host))
var err C.IedClientError
C.IedConnection_connect(conn, &err, host, C.int(settings.Port))
return conn, err
}