I have some code in a function called create_pid_file that opens a file using flock(), and returns the file, or an error if it fails. The purpose of this is to ensure that only one copy of the program is running at a time, and to do this the caller must keep the file returned in scope (i.e. open) un…

"unused" variables that need to not be prematurely dropped

Michael-F-Bryan May 2, 2018, 10:35am 6

@ExpHO "make invalid states unrepresentable", I like it!

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