close_io_channelT_close_io_channelCloseIoChannelCloseIoChannelclose_io_channel (Operator)

名称

close_io_channelT_close_io_channelCloseIoChannelCloseIoChannelclose_io_channel — 关闭输入/输出通道。

签名

close_io_channel( : : IOChannelHandle : )

描述

The operator close_io_channelclose_io_channelCloseIoChannelCloseIoChannelCloseIoChannelclose_io_channel closes transmission channels opened by open_io_channelopen_io_channelOpenIoChannelOpenIoChannelOpenIoChannelopen_io_channel. The references to the channels are passed in IOChannelHandleIOChannelHandleIOChannelHandleIOChannelHandleIOChannelHandleiochannel_handle. In particular, allocated memory and reserved device resources are released.

执行信息

Multithreading type: reentrant (runs in parallel with non-exclusive operators).
Multithreading scope: global (may be called from any thread).
Processed without parallelization.

This operator modifies the state of the following input parameter:

IOChannelHandleIOChannelHandleIOChannelHandleIOChannelHandleIOChannelHandleiochannel_handle

During execution of this operator, access to the value of this parameter must be synchronized if it is used across multiple threads.

参数

IOChannelHandleIOChannelHandleIOChannelHandleIOChannelHandleIOChannelHandleiochannel_handle (input_control, state is modified) io_channel(-array) → (handle)

Handles of the opened I/O channels.

结果

If the parameters are valid, the operator close_io_channelclose_io_channelCloseIoChannelCloseIoChannelCloseIoChannelclose_io_channel returns the value 2 ( H_MSG_TRUE) . If necessary an exception is raised. In this case, an extended error information may be set and can be queried with the operator get_extended_error_infoget_extended_error_infoGetExtendedErrorInfoGetExtendedErrorInfoGetExtendedErrorInfoget_extended_error_info.

可能的前置算子

open_io_channelopen_io_channelOpenIoChannelOpenIoChannelOpenIoChannelopen_io_channel

可能的后继算子

close_io_deviceclose_io_deviceCloseIoDeviceCloseIoDeviceCloseIoDeviceclose_io_device

模块

Foundation

算子