23 Feb
2009
23 Feb
'09
6:36 p.m.
On Montag, 23. Februar 2009, Matthias Wächter wrote:
Hi,
just wanted to ask whether someone already thought about the idea to use unique timer IDs, like autoincrement, for avoiding race conditions between multiple users or processes adding or removing timers. The associated renumbering between DELT operations can lead to hitting the wrong timer. If all timers had unique numbers, the issue would be gone implicitly, but timers.conf would have to carry the ID requiring a file layout change.
To me this sounds like a good idea.
Even better would be to then properly protect the VDR internal data structures, and finally just allow concurrent access to them. Like multiple svdrp connections etc.
Matthias