filelock

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not locking based on extra dots in filename

4

The correctness of locking is contingent on simple file patterns. Side-by-side, two R processes on the same host, code executed from top to bottom in order. ```r system("uname -a") #...

r2evans

gaborcsardi

gaborcsardi

gaborcsardi

itimer state is not restored

2

Currently filelock restores the SIGALRM handler to its previous state but the itimer state is not restored.

lionel-

Function to check if a a file is locked by another process, and if yes, which process

2

Useful for https://github.com/r-lib/pkgdepends/issues/141, then we can print out the pid of the other process.

gaborcsardi

gaborcsardi

Otherwise the file is kept locked, which is a problem on windows, because even the same process cannot (re-)lock it.

gaborcsardi

I.e. if you first lock exclusively, then shared, or the other way. Ideally this should work, and only the the more restrictive lock type should be used.

gaborcsardi

Not so much a filelock issue, although we could document it here. I really like how the new apt package manager handles this: ``` apt(8) now waits for the dpkg...

gaborcsardi