get_io_device_paramT_get_io_device_paramGetIoDeviceParamGetIoDeviceParamget_io_device_param (算子)

名称

get_io_device_paramT_get_io_device_paramGetIoDeviceParamGetIoDeviceParamget_io_device_param — 查询输入/输出设备实例的设置。

签名

get_io_device_param( : : IODeviceHandle, GenParamName : GenParamValue)

描述

get_io_device_paramget_io_device_paramGetIoDeviceParamGetIoDeviceParamGetIoDeviceParamget_io_device_param queries configuration settings of a specific device instance. The query parameters are passed in GenParamNameGenParamNameGenParamNameGenParamNamegenParamNamegen_param_name, the corresponding configuration values are returned in GenParamValueGenParamValueGenParamValueGenParamValuegenParamValuegen_param_value. IODeviceHandleIODeviceHandleIODeviceHandleIODeviceHandleIODeviceHandleiodevice_handle specifies the device returned in open_io_deviceopen_io_deviceOpenIoDeviceOpenIoDeviceOpenIoDeviceopen_io_device。

Please check the directory doc/html/reference/io for documentation about your specific I/O device interface, where all supported device specific parameters are listed.

执行信息

多线程类型：可重入（与非独占算子并行运行）。
多线程作用域：全局（可从任何线程调用）。
未采用并行化处理。

参数

IODeviceHandleIODeviceHandleIODeviceHandleIODeviceHandleIODeviceHandleiodevice_handle (输入控制) io_device → (handle)

Handle of the opened I/O device.

GenParamNameGenParamNameGenParamNameGenParamNamegenParamNamegen_param_name (输入控制) attribute.name(-array) → (string)

Parameter names.

默认值： 'param_name' "param_name" "param_name" "param_name" "param_name" "param_name"

建议值： 'io_device_name'"io_device_name""io_device_name""io_device_name""io_device_name""io_device_name", 'param_name'"param_name""param_name""param_name""param_name""param_name"

GenParamValueGenParamValueGenParamValueGenParamValuegenParamValuegen_param_value (输出控制) attribute.value(-array) → (string / integer / real / handle)

Parameter values.

结果

如果参数有效，算子 get_io_device_paramget_io_device_paramGetIoDeviceParamGetIoDeviceParamGetIoDeviceParamget_io_device_param 返回值 2 ( H_MSG_TRUE )。如有必要，则抛出异常。在这种情况下，可以设置扩展错误信息，并可进行查询通过算子 get_extended_error_infoget_extended_error_infoGetExtendedErrorInfoGetExtendedErrorInfoGetExtendedErrorInfoget_extended_error_info。

可能的前趋

open_io_deviceopen_io_deviceOpenIoDeviceOpenIoDeviceOpenIoDeviceopen_io_device, set_io_device_paramset_io_device_paramSetIoDeviceParamSetIoDeviceParamSetIoDeviceParamset_io_device_param

可能的后继

open_io_channelopen_io_channelOpenIoChannelOpenIoChannelOpenIoChannelopen_io_channel

另见

open_io_deviceopen_io_deviceOpenIoDeviceOpenIoDeviceOpenIoDeviceopen_io_device, query_io_interfacequery_io_interfaceQueryIoInterfaceQueryIoInterfaceQueryIoInterfacequery_io_interface, set_io_device_paramset_io_device_paramSetIoDeviceParamSetIoDeviceParamSetIoDeviceParamset_io_device_param

模块

基础

算子