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Asked: 2026-06-13T17:47:57+00:00

Say I want to have a server that can accept socket connection and also

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Say I want to have a server that can accept socket connection and also can monitor devices which are plugged in the server.

There will be two things the server can do.

1. Accept/Monitor Client connections via TCP/IP(recv and send from them);

2. Monitor Devices(recv and send from the devices);

From number 1 i plan to use linux sockets to accept client connections.

From number 2 i plan to use libudev.h library to monitor devices. which have a tutorial on signal11..

I have already code linux sockets and libudev.h.. but they’re separate user space app. I need to merge them as one.. How am i supposed to do this?.

Or any suggestions how can i do this? THanks.

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1 Answer

  1. Editorial Team

    So you need to multiplex your I/O?

    If that’s all you’re asking then you have a selection of options. The traditional UNIX way would be to use select or poll. – http://www.linux-mag.com/id/331/

    Or you could go for spawning threads for each of the connections that need I/O done on them. This is naturally the easiest option, but is fraught with risk in terms of maintaining data integrity between the two threads, locking and race conditions make a solid implementation trickier (I think) than poll.

    You could of course still keep them as separate processes and then use some method of IPC (Shared memory, message queues etc.) to a third process to unify the functionality of the two. This is perhaps a little heavier than the threaded option but with better separation between the two processes, making it more resilient at the cost of (potentially) more work.

    Can you clarify your question a little more?!

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