December 2000
Intermediate to advanced
784 pages
20h 54m
English
Content preview from Network Programming with Perl
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Chapter 10. Forking Servers and the inetd Daemon
Although the simple TCP servers developed in Chapters 4 and 5 (Figures 4.2 and 5.4) are straightforward, they actually suffer a significant deficiency. Both of these servers work by servicing one client at a time. While they are working on one client, other clients can't connect.[1]
[1] Technically, they do connect, but the operating system queues them until the script calls accept (). No I/O can occur until the server has finished servicing the previous connection.
Connection-oriented servers must overlap their I/O by providing some sort of concurrency among the multiple sessions. This chapter discusses various techniques for doing so.
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