/// <summary>
/// Returns an engine to the pool so it can be reused
/// </summary>
/// <param name="engine">Engine to return</param>
public virtual void ReturnEngineToPool(IJsEngine engine)
{
EngineMetadata metadata;
if (!_metadata.TryGetValue(engine, out metadata))
{
// This engine was from another pool. This could happen if a pool is recycled
// and replaced with a different one (like what ReactJS.NET does when any
// loaded files change). Let's just pretend we never saw it.
engine.Dispose();
return;
}
metadata.InUse = false;
var usageCount = metadata.UsageCount;
if (_config.MaxUsagesPerEngine > 0 && usageCount >= _config.MaxUsagesPerEngine)
{
// Engine has been reused the maximum number of times, recycle it.
DisposeEngine(engine);
return;
}
if (
_config.GarbageCollectionInterval > 0 &&
usageCount % _config.GarbageCollectionInterval == 0 &&
engine.SupportsGarbageCollection()
)
{
engine.CollectGarbage();
}
_availableEngines.Add(engine);
}
/// <summary>
/// Collecs garbage in the specified engine.
/// </summary>
/// <param name="engine">Engine to collect garbage in</param>
public static void CollectGarbage(this IJsEngine engine)
{
if (!engine.SupportsGarbageCollection())
{
throw new InvalidOperationException("Engine doesn't support garbage collection.");
}
V8CollectGarbage(engine);
}
/// <summary>
/// Returns an engine to the pool so it can be reused
/// </summary>
/// <param name="engine">Engine to return</param>
public virtual void ReturnEngineToPool(IJsEngine engine)
{
if (!_metadata.ContainsKey(engine))
{
// This engine was from another pool. This could happen if a pool is recycled
// and replaced with a different one (like what ReactJS.NET does when any
// loaded files change). Let's just pretend we never saw it.
engine.Dispose();
return;
}
_metadata[engine].InUse = false;
var usageCount = _metadata[engine].UsageCount;
if (_config.MaxUsagesPerEngine > 0 && usageCount >= _config.MaxUsagesPerEngine)
{
// Engine has been reused the maximum number of times, recycle it.
DisposeEngine(engine);
return;
}
if (
_config.GarbageCollectionInterval > 0 &&
usageCount % _config.GarbageCollectionInterval == 0 &&
engine.SupportsGarbageCollection()
)
{
engine.CollectGarbage();
}
_availableEngines.Add(engine);
}