fread_serialized_itemT_fread_serialized_itemFreadSerializedItemFreadSerializedItemfread_serialized_item (算子名称)

名称

fread_serialized_itemT_fread_serialized_itemFreadSerializedItemFreadSerializedItemfread_serialized_item — Read a serialized item from a file.

参数签名

描述

fread_serialized_itemfread_serialized_itemFreadSerializedItemFreadSerializedItemFreadSerializedItemfread_serialized_item reads a serialized item, that was written by fwrite_serialized_itemfwrite_serialized_itemFwriteSerializedItemFwriteSerializedItemFwriteSerializedItemfwrite_serialized_item from the current input file with the file handle FileHandleFileHandleFileHandleFileHandlefileHandlefile_handle (see fwrite_serialized_itemfwrite_serialized_itemFwriteSerializedItemFwriteSerializedItemFwriteSerializedItemfwrite_serialized_item for an introduction of the basics of serialization). For this, a serialized item is created and the values read from file are stored in the serialized item. The operator returns the handle of the serialized item in the parameter SerializedItemHandleSerializedItemHandleSerializedItemHandleSerializedItemHandleserializedItemHandleserialized_item_handle. The file can be opened by the operator open_fileopen_fileOpenFileOpenFileOpenFileopen_file. Note that the file must be open in binary format. For reading more than on item from one file the operator fread_serialized_itemfread_serialized_itemFreadSerializedItemFreadSerializedItemFreadSerializedItemfread_serialized_item must be called several times.

运行信息

• 多线程类型:可重入(与非独占操作符并行运行)。
• 多线程作用域:全局(可以从任何线程调用)。
• 未经并行化处理。

This operator returns a handle. Note that the state of an instance of this handle type may be changed by specific operators even though the handle is used as an input parameter by those operators.

参数表

结果

如果参数均有效，算子 fread_serialized_itemfread_serialized_itemFreadSerializedItemFreadSerializedItemFreadSerializedItemfread_serialized_item 返回值 2 ( H_MSG_TRUE) . If necessary, an exception is raised. The error code 9581 indicates that the end of file is reached before a serialized item could be read.

可能的前置算子

open_fileopen_fileOpenFileOpenFileOpenFileopen_file, fwrite_serialized_itemfwrite_serialized_itemFwriteSerializedItemFwriteSerializedItemFwriteSerializedItemfwrite_serialized_item

可能的后置算子

close_fileclose_fileCloseFileCloseFileCloseFileclose_file, get_serialized_item_ptrget_serialized_item_ptrGetSerializedItemPtrGetSerializedItemPtrGetSerializedItemPtrget_serialized_item_ptr, deserialize_shape_modeldeserialize_shape_modelDeserializeShapeModelDeserializeShapeModelDeserializeShapeModeldeserialize_shape_model, deserialize_ncc_modeldeserialize_ncc_modelDeserializeNccModelDeserializeNccModelDeserializeNccModeldeserialize_ncc_model

模块

Foundation