close_io_channelT_close_io_channelCloseIoChannelCloseIoChannel (Operator)
Name
close_io_channelT_close_io_channelCloseIoChannelCloseIoChannel — Close I/O channels.
Signature
Description
The operator close_io_channelclose_io_channelCloseIoChannelCloseIoChannelCloseIoChannel closes transmission
channels opened by open_io_channelopen_io_channelOpenIoChannelOpenIoChannelOpenIoChannel. The references to the
channels are passed in IOChannelHandleIOChannelHandleIOChannelHandleIOChannelHandleIOChannelHandle. In particular,
allocated memory and reserved device resources are released.
Execution Information
- 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:
During execution of this operator, access to the value of this parameter must be synchronized if it is used across multiple threads.
Parameters
IOChannelHandleIOChannelHandleIOChannelHandleIOChannelHandleIOChannelHandle (input_control, state is modified) io_channel(-array) → HIOChannel, HTupleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)
Handles of the opened I/O channels.
Result
If the parameters are valid, the operator
close_io_channelclose_io_channelCloseIoChannelCloseIoChannelCloseIoChannel 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_infoGetExtendedErrorInfoGetExtendedErrorInfoGetExtendedErrorInfo.
Possible Predecessors
open_io_channelopen_io_channelOpenIoChannelOpenIoChannelOpenIoChannel
Possible Successors
close_io_deviceclose_io_deviceCloseIoDeviceCloseIoDeviceCloseIoDevice
Module
Foundation