/// <summary>
/// Creates a new instance of a Barista Runtime.
/// </summary>
public BaristaRuntime(IJavaScriptEngine engine, IBaristaContextFactory contextFactory, JavaScriptRuntimeSafeHandle runtimeHandle)
: base(engine, runtimeHandle)
{
m_contextFactory = contextFactory ?? throw new ArgumentNullException(nameof(contextFactory));
JavaScriptMemoryAllocationCallback runtimeMemoryAllocationChanging = (IntPtr callbackState, JavaScriptMemoryEventType allocationEvent, UIntPtr allocationSize) =>
{
try
{
return(OnRuntimeMemoryAllocationChanging(callbackState, allocationEvent, allocationSize));
}
catch
{
//Do Nothing.
return(true);
}
};
m_runtimeMemoryAllocationChangingDelegateHandle = GCHandle.Alloc(runtimeMemoryAllocationChanging);
Engine.JsSetRuntimeMemoryAllocationCallback(runtimeHandle, IntPtr.Zero, runtimeMemoryAllocationChanging);
JavaScriptBeforeCollectCallback beforeCollectCallback = (IntPtr callbackState) =>
{
try
{
OnBeforeCollect(IntPtr.Zero, callbackState);
}
catch
{
//Do Nothing.
}
};
m_beforeCollectCallbackDelegateHandle = GCHandle.Alloc(beforeCollectCallback);
Engine.JsSetRuntimeBeforeCollectCallback(runtimeHandle, IntPtr.Zero, beforeCollectCallback);
}
internal static extern JavaScriptErrorCode JsSetRuntimeBeforeCollectCallback(JavaScriptRuntime runtime, IntPtr callbackState, JavaScriptBeforeCollectCallback beforeCollectCallback);
internal static extern JavaScriptErrorCode JsSetRuntimeBeforeCollectCallback(JavaScriptRuntime runtime, IntPtr callbackState, JavaScriptBeforeCollectCallback beforeCollectCallback);
/// <summary>
/// Sets a callback function that is called by the runtime before garbage collection.
/// </summary>
/// <remarks>
/// <para>
/// The callback is invoked on the current runtime execution thread, therefore execution is
/// blocked until the callback completes.
/// </para>
/// <para>
/// The callback can be used by hosts to prepare for garbage collection. For example, by
/// releasing unnecessary references on Chakra objects.
/// </para>
/// </remarks>
/// <param name="callbackState">
/// User provided state that will be passed back to the callback.
/// </param>
/// <param name="beforeCollectCallback">The callback function being set.</param>
public void SetBeforeCollectCallback(IntPtr callbackState, JavaScriptBeforeCollectCallback beforeCollectCallback)
{
Native.ThrowIfError(Native.JsSetRuntimeBeforeCollectCallback(this, callbackState, beforeCollectCallback));
}
/// <summary>
/// Sets a callback function that is called by the runtime before garbage collection.
/// </summary>
/// <remarks>
/// <para>
/// The callback is invoked on the current runtime execution thread, therefore execution is
/// blocked until the callback completes.
/// </para>
/// <para>
/// The callback can be used by hosts to prepare for garbage collection. For example, by
/// releasing unnecessary references on Chakra objects.
/// </para>
/// </remarks>
/// <param name="callbackState">
/// User provided state that will be passed back to the callback.
/// </param>
/// <param name="beforeCollectCallback">The callback function being set.</param>
public void SetBeforeCollectCallback(IntPtr callbackState, JavaScriptBeforeCollectCallback beforeCollectCallback)
{
Native.ThrowIfError(Native.JsSetRuntimeBeforeCollectCallback(this, callbackState, beforeCollectCallback));
}
