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I finally found the mystery error that I've been trying to figure out for a while now. The issue was the dreaded too many file descriptors open. This was caused by not closing the pipe() file descriptors from the parent. I also noticed that handing each instance of packjpg the maximum number of files it can take leads to problems. I guess this is also a cause of "too many file descriptors open", so I have limited the number of files handed to each instance of packjpg to 40. The entire program now runs to completion using my Photos library as a (quite large) test data set!

Fixing the bug I discovered yesterday... I meant to use rfind() instead of find(). I should be ready for another full test.

WIP commit, stashing these debugging changes so I can go mobile.

Finished up the changes to make argv a std::vector instead of a regular array. I also implemented the changes to control the size of argv based on system configuration and potentially spawn packJPG multiple times in order to handle a very large number of files. I ran a test on my Photos library and it sort of worked but I ran into some issues that I still need to diagnose.

WIP commit. I started converting the argv list to a std::vector and adding logic to make sure it does not exceed the maximum argv size.

Adding initial CMakeLists.txt. This version only builds PCA, it does not (yet) build packJPG as a subproject.

Removing accidentally added object file and adding a .gitignore file to prevent me from accidentally adding another one in the future.

Adding an optimized version of the packJPG source to the source tree for this utility since it is entirely dependent on packJPG. I started to modify the Makefile but really I shoud just use CMake. I'll work on that next.

Adding some minor edits along with a bit of debug code.

Adding proper option parsing and some general improvements. I've added an option for decompression but I still need to implement it.