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bi-directional fifo

Hi,

I need to make two independent process communicate using open, read and write calls. I could use mkfifo, but the problem is that the same process that wrote to the fifo could read its own data. I need something like a socket communication type: one process can read or write to the same file descriptor but there are two different channels. Is there such a mechanism? I do not need necessarily to create this mechanism (if exists) in my program, I just need to open it.

Thanks in advance.
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