Windows System Programming Third Edition

SUMMARY

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Summary

Windows has three methods for performing asynchronous I/O. Using threads is the

most general and simplest technique and, unlike the other two, works with Windows

9x. Each thread is responsible for a sequence of one or more sequential, blocking I/O

operations. Furthermore, each thread should have its own file or pipe handle.

Overlapped I/O allows a single thread to perform

asynchronous operations on a

single file handle, but there must be an event handle, rather than a thread and file

handle pair, for each operation. Wait specifically for each I/O operation to complete

and then perform any required cleanup or sequencing operations