Thanks for this, Tim! Really happy to see that old fslock code go away, and using much more reliable OS-level functionality.
On Tue, Jun 21, 2016 at 11:53 AM Alexis Bruemmer < alexis.bruem...@canonical.com> wrote: > Tim this is really awesome and will address a few long standing and > painful field bugs. Thank you for taking the extra effort to do this work! > > Also thank you to Nate Finch and David Cheney for their contributions on > this effort. > > On Tue, Jun 21, 2016 at 2:24 AM, Tim Penhey <tim.pen...@canonical.com> > wrote: > >> Hi folks, >> >> We have finally managed to exorcise the fslock from the codebase. Both >> 1.25 and master no longer refer to it at all. We need to remove it from the >> juju/utils package to make sure that people don't accidentally try and use >> it again. >> >> There is a new replacement, the juju/mutex package. To acquire a mutex, >> you create a mutex.Spec structure. You must at least provide a name, delay >> and clock. The delay is how long the code waits between tries to acquire >> the mutex. Named mutexs are shared between processes on the same machine. >> If a process holds the mutex and the process dies, the mutex is >> automatically released. A spec can also have a timeout value, and/or an >> abort channel. >> >> On linux this is implemented with abstract domain sockets, on windows it >> uses a named semaphore, and on other platforms a flock is used on a named >> temp file. >> >> https://godoc.org/github.com/juju/mutex >> >> Cheers, >> Tim >> >> -- >> Juju-dev mailing list >> Juju-dev@lists.ubuntu.com >> Modify settings or unsubscribe at: >> https://lists.ubuntu.com/mailman/listinfo/juju-dev >> > > > > -- > Alexis Bruemmer > Juju Core Manager, Canonical Ltd. > (503) 686-5018 > alexis.bruem...@canonical.com > -- > Juju-dev mailing list > Juju-dev@lists.ubuntu.com > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/juju-dev >
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