I'm wanting to use memory-mapped IO to establish communications between two applications of mine (primarily to avoid the problem of sockets tending to leak to other computers on the network). However, one issue I am concerned about is storage space: as I continue writing commands to the file, that file is only going to get larger. Granted, most of the commands are short and it would take a few days of constant runtime for it to become a problem, but I would like to avoid it all the same. Is there a good way for me to periodically clear the file of "old" messages that my recipient application has already read, thus reclaiming disc storage space?
Keeping memory mapped files from growing too large
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