sim1222/osukey
1
1
Fork 0
mirror of https://github.com/osukey/osukey.git synced 2025-05-31 02:17:34 +09:00
Code Issues Packages Projects Releases Wiki Activity

Fix potential oversight in semaphore release logic

Browse Source
This commit is contained in:
Dean Herbert 2021-11-29 18:26:37 +09:00
parent f19cfcc82e
commit 23fded4a3a
1 changed files with 17 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
osu.Game/Database/RealmContextFactory.cs
View File

@ -153,26 +153,36 @@ namespace osu.Game.Database
if (isDisposed)
throw new ObjectDisposedException(nameof(RealmContextFactory));
bool tookSemaphoreLock = false;
try
{
if (!currentThreadCanCreateContexts.Value)
{
contextCreationLock.Wait();
// the semaphore is used to stop all context creation.
// once the semaphore has been taken by this code section, it is safe to create further contexts.
tookSemaphoreLock = true;
}
else
{
// the semaphore is used to handle blocking of all context creation during certain periods.
// once the semaphore has been taken by this code section, it is safe to create further contexts on the same thread.
// this can happen if a realm subscription is active and triggers a callback which has user code that calls `CreateContext`.
currentThreadCanCreateContexts.Value = true;
}
contexts_created.Value++;
return Realm.GetInstance(getConfiguration());
}
finally
{
if (tookSemaphoreLock)
{
contextCreationLock.Release();
currentThreadCanCreateContexts.Value = false;
}
}
}
private RealmConfiguration getConfiguration()
{