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I write C program in Linux and I use inter-process communication.

After I create "mail box" using msgget() function I want to know what is it's size.
And I want to increase this size.
I think I should use msgctl() function, but I don't know how.

Does someone have some examples?

Updated 7-May-10 22:57pm

msgctl is clearly described in its man page[^]. What is it that you don't understand?

How can I make the buffer (that created after msgget) bigger?
Did you tried using IPC_SET as command and specifying msg_qbytes member of the msqid_ds?


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