diff options
Diffstat (limited to 'platform/darwin/src/MGLOfflinePack.mm')
| -rw-r--r-- | platform/darwin/src/MGLOfflinePack.mm | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/platform/darwin/src/MGLOfflinePack.mm b/platform/darwin/src/MGLOfflinePack.mm index 0f2e8180fa..5f4ae9c838 100644 --- a/platform/darwin/src/MGLOfflinePack.mm +++ b/platform/darwin/src/MGLOfflinePack.mm @@ -135,10 +135,15 @@ private: - (void)invalidate { MGLLogInfo(@"Invalidating pack."); MGLAssert(_state != MGLOfflinePackStateInvalid, @"Cannot invalidate an already invalid offline pack."); + MGLAssert(self.mbglOfflineRegion, @"Should have a valid region"); - self.state = MGLOfflinePackStateInvalid; - _mbglFileSource->setOfflineRegionObserver(*self.mbglOfflineRegion, nullptr); - self.mbglOfflineRegion = nil; + @synchronized (self) { + self.state = MGLOfflinePackStateInvalid; + if (self.mbglOfflineRegion) { + _mbglFileSource->setOfflineRegionObserver(*self.mbglOfflineRegion, nullptr); + } + self.mbglOfflineRegion = nil; + } } - (void)setState:(MGLOfflinePackState)state { |