NewFDSet creates a set of file descriptors suitable for a Select call.

Select performs a select system call, file descriptors in the rd set are tested for read-events, file descriptors in the wd set are tested for write-events and file descriptors in the er set are tested for error-events.

FDResultSets contains the result of a Select operation.

FDSet is a set of file descriptors suitable for a select call.

Pipe represents a unix-pipe.