Esempio n. 1
0
func setAttr(cdesc *C.TF_OperationDescription, status *status, name string, value interface{}) error {
	cAttrName := C.CString(name)
	defer C.free(unsafe.Pointer(cAttrName))
	switch value := value.(type) {
	case string:
		cstr := C.CString(value)
		C.TF_SetAttrString(cdesc, cAttrName, unsafe.Pointer(cstr), C.size_t(len(value)))
		C.free(unsafe.Pointer(cstr))
	case []string:
		size := len(value)
		list := make([]unsafe.Pointer, size)
		lens := make([]C.size_t, size)
		for i, s := range value {
			list[i] = unsafe.Pointer(C.CString(s))
			lens[i] = C.size_t(len(s))
		}
		C.TF_SetAttrStringList(cdesc, cAttrName, &list[0], &lens[0], C.int(size))
		for _, s := range list {
			C.free(s)
		}
	case int64:
		C.TF_SetAttrInt(cdesc, cAttrName, C.int64_t(value))
	case []int64:
		size := len(value)
		list := make([]C.int64_t, size)
		for i, v := range value {
			list[i] = C.int64_t(v)
		}
		C.TF_SetAttrIntList(cdesc, cAttrName, &list[0], C.int(size))
	case float32:
		C.TF_SetAttrFloat(cdesc, cAttrName, C.float(value))
	case []float32:
		size := len(value)
		list := make([]C.float, size)
		for i, v := range value {
			list[i] = C.float(v)
		}
		C.TF_SetAttrFloatList(cdesc, cAttrName, &list[0], C.int(size))
	case bool:
		v := C.uchar(0)
		if value {
			v = 1
		}
		C.TF_SetAttrBool(cdesc, cAttrName, v)
	case []bool:
		size := len(value)
		list := make([]C.uchar, size)
		for i, v := range value {
			if v {
				list[i] = 1
			}
		}
		C.TF_SetAttrBoolList(cdesc, cAttrName, &list[0], C.int(size))
	case DataType:
		C.TF_SetAttrType(cdesc, cAttrName, C.TF_DataType(value))
	case []DataType:
		list := (*C.TF_DataType)(&value[0])
		C.TF_SetAttrTypeList(cdesc, cAttrName, list, C.int(len(value)))
	case *Tensor:
		C.TF_SetAttrTensor(cdesc, cAttrName, value.c, status.c)
		if err := status.Err(); err != nil {
			return fmt.Errorf("bad value for attribute %q: %v", name, err)
		}
	case []*Tensor:
		size := len(value)
		list := make([]*C.TF_Tensor, size)
		for i, v := range value {
			list[i] = v.c
		}
		C.TF_SetAttrTensorList(cdesc, cAttrName, &list[0], C.int(size), status.c)
		if err := status.Err(); err != nil {
			return fmt.Errorf("bad value for attribute %q: %v", name, err)
		}
	case Shape:
		ndims, dims := cshape(value)
		var dimsp *C.int64_t
		if ndims > 0 {
			dimsp = &dims[0]
		}
		C.TF_SetAttrShape(cdesc, cAttrName, dimsp, ndims)
	case []Shape:
		ndims := make([]C.int, len(value))
		dims := make([][]C.int64_t, len(value))
		dimsp := make([]*C.int64_t, len(value))
		for i, s := range value {
			ndims[i], dims[i] = cshape(s)
			if ndims[i] > 0 {
				dimsp[i] = &dims[i][0]
			}
		}
		C.TF_SetAttrShapeList(cdesc, cAttrName, &dimsp[0], &ndims[0], C.int(len(value)))
	default:
		return fmt.Errorf("attribute %q has a type (%T) which is not valid for operation attributes", name, value)
	}
	return nil
}
Esempio n. 2
0
func setAttr(cdesc *C.TF_OperationDescription, status *status, name string, value interface{}) error {
	cAttrName := C.CString(name)
	defer C.free(unsafe.Pointer(cAttrName))
	switch value := value.(type) {
	case string:
		cstr := C.CString(value)
		C.TF_SetAttrString(cdesc, cAttrName, unsafe.Pointer(cstr), C.size_t(len(value)))
		C.free(unsafe.Pointer(cstr))
	case []string:
		size := len(value)
		list := make([]unsafe.Pointer, size)
		lens := make([]C.size_t, size)
		for i, s := range value {
			list[i] = unsafe.Pointer(C.CString(s))
			lens[i] = C.size_t(len(s))
		}
		C.TF_SetAttrStringList(cdesc, cAttrName, &list[0], &lens[0], C.int(size))
		for _, s := range list {
			C.free(s)
		}
	case int64:
		C.TF_SetAttrInt(cdesc, cAttrName, C.int64_t(value))
	case []int64:
		size := len(value)
		list := make([]C.int64_t, size)
		for i, v := range value {
			list[i] = C.int64_t(v)
		}
		C.TF_SetAttrIntList(cdesc, cAttrName, &list[0], C.int(size))
	case float32:
		C.TF_SetAttrFloat(cdesc, cAttrName, C.float(value))
	case []float32:
		size := len(value)
		list := make([]C.float, size)
		for i, v := range value {
			list[i] = C.float(v)
		}
		C.TF_SetAttrFloatList(cdesc, cAttrName, &list[0], C.int(size))
	case bool:
		v := C.uchar(0)
		if value {
			v = 1
		}
		C.TF_SetAttrBool(cdesc, cAttrName, v)
	case []bool:
		size := len(value)
		list := make([]C.uchar, size)
		for i, v := range value {
			if v {
				list[i] = 1
			}
		}
		C.TF_SetAttrBoolList(cdesc, cAttrName, &list[0], C.int(size))
	case DataType:
		C.TF_SetAttrType(cdesc, cAttrName, C.TF_DataType(value))
	case []DataType:
		list := (*C.TF_DataType)(&value[0])
		C.TF_SetAttrTypeList(cdesc, cAttrName, list, C.int(len(value)))
	case *Tensor:
		C.TF_SetAttrTensor(cdesc, cAttrName, value.c, status.c)
		if err := status.Err(); err != nil {
			return fmt.Errorf("bad value for attribute %q: %v", name, err)
		}
	case []*Tensor:
		size := len(value)
		list := make([]*C.TF_Tensor, size)
		for i, v := range value {
			list[i] = v.c
		}
		C.TF_SetAttrTensorList(cdesc, cAttrName, &list[0], C.int(size), status.c)
		if err := status.Err(); err != nil {
			return fmt.Errorf("bad value for attribute %q: %v", name, err)
		}
	default:
		// Shapes can be done, but will require that it be
		// distinguishable from []int64. Which is fine, it
		// probably makes sense to define a Shape type anyway,
		// since that should handle partially known shapes as
		// well and hide the special meaning of -1?
		return fmt.Errorf("attribute %q has a type (%T) which is not valid for operation attributes", name, value)
	}
	return nil
}