private bool GetAvailableTask(object tag, out IdleTimeAsyncTask worker)
{
// Ensure no current workers are processing work items with the same tag.
// This ensures object thread affinity so no two HTML validators
// will run in the same document.
worker = null;
bool thisTagIsRunning = false;
for (int i = 0; i < _workerTasks.Length; i++)
{
var candidate = _workerTasks[i];
if (candidate.TaskRunning && candidate.Tag == tag)
{
// Task with this tag is already running, try another task maybe
thisTagIsRunning = true;
}
else if (!candidate.TaskRunning)
{
worker = candidate;
}
}
bool workerAvailable = worker != null;
if (thisTagIsRunning)
{
worker = null; // worker is available but not for this task
}
return(workerAvailable); // some task is available
}
private void DisconnectFromIdle()
{
if (_connectedToIdle)
{
_connectedToIdle = false;
// We're holding onto these tasks in a static, let's clean them up
// Otherwise, they could be pointing to closed documents/views
// or other stale data that the Tag or callbacks hold onto.
for (int i = 0; i < _workerTasks.Length; i++)
{
_workerTasks[i] = new IdleTimeAsyncTask(_shell);
}
_shell.Idle -= OnIdle;
}
}
public IdleTimeAsyncTaskQueue(ICoreShell shell)
{
_shell = shell;
var logicalCpuCount = Environment.ProcessorCount;
var taskCount = logicalCpuCount / 4;
if (taskCount == 0)
{
taskCount = 1;
}
_workerTasks = new IdleTimeAsyncTask[taskCount];
for (int i = 0; i < _workerTasks.Length; i++)
{
_workerTasks[i] = new IdleTimeAsyncTask(_shell);
}
}
public IdleTimeAsyncTaskQueue(IServiceContainer services)
{
_services = services;
_idleTime = services.GetService <IIdleTimeService>();
var logicalCpuCount = Environment.ProcessorCount;
var taskCount = logicalCpuCount / 4;
if (taskCount == 0)
{
taskCount = 1;
}
_workerTasks = new IdleTimeAsyncTask[taskCount];
for (var i = 0; i < _workerTasks.Length; i++)
{
_workerTasks[i] = new IdleTimeAsyncTask(_services);
}
}
