As a webadmin I'm concerned at what would happen if the file is changed while the webserver is reading it

[kf6kjg]

Comes from this comment in Program.cs:

/* Issues to watch for:
* TODO: Tile image read during write - The web server could attempt to read a file while the file is being written.
*  - Possible solution: write to a random filename then try { mv rndname to finalname with overwrite } catch { try again later for a max of N times }
*    This should provide as much atomicity as possible, and allow anything that's blocking access to be bypassed via time delay. Needs to just fail under exceptions that indicate always-fail conditions.
*/