FILE ccache corruption, possible fix

Nico Williams nico at
Wed Jan 22 00:57:39 EST 2014

Oh, of course, readers must delay closing the fildes, or perhaps acquire a
[whole file] write lock immediately before closing the fildes (to make sure
not to be stepping on any writer's toes.

Boy, it'd be nice if O_APPEND was reliable, but it's not.

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