func (*diskStoreSuite) TestConcurrentAccess(c *gc.C) {
var tw loggo.TestWriter
c.Assert(loggo.RegisterWriter("test-log", &tw, loggo.DEBUG), gc.IsNil)
dir := c.MkDir()
store, err := configstore.NewDisk(dir)
c.Assert(err, jc.ErrorIsNil)
envDir := storePath(dir, "")
lock, err := configstore.AcquireEnvironmentLock(envDir, "blocking-op")
c.Assert(err, jc.ErrorIsNil)
defer lock.Unlock()
_, err = store.ReadInfo("someenv")
c.Assert(errors.Cause(err), gc.Equals, fslock.ErrTimeout)
// Using . between environments and env.lock so we don't have to care
// about forward vs. backwards slash separator.
messages := []jc.SimpleMessage{
{loggo.WARNING, `configstore lock held, lock dir: .*environments.env\.lock`},
{loggo.WARNING, `lock holder message: pid: \d+, operation: blocking-op`},
}
c.Check(tw.Log(), jc.LogMatches, messages)
}
func (*diskStoreSuite) TestConcurrentAccessBreaksIfTimeExceeded(c *gc.C) {
var tw loggo.TestWriter
c.Assert(loggo.RegisterWriter("test-log", &tw, loggo.DEBUG), gc.IsNil)
dir := c.MkDir()
store, err := configstore.NewDisk(dir)
c.Assert(err, jc.ErrorIsNil)
envDir := storePath(dir, "")
_, err = configstore.AcquireEnvironmentLock(envDir, "blocking-op")
c.Assert(err, jc.ErrorIsNil)
_, err = store.ReadInfo("somemodel")
c.Check(err, jc.Satisfies, errors.IsNotFound)
// Using . between environments and env.lock so we don't have to care
// about forward vs. backwards slash separator.
messages := []jc.SimpleMessage{
{loggo.WARNING, `breaking configstore lock, lock dir: .*models.env\.lock`},
{loggo.WARNING, `lock holder message: pid: \d+, operation: blocking-op`},
}
c.Check(tw.Log(), jc.LogMatches, messages)
}
