/// <summary>
/// Adds an action to be executed, guaranteeing that no other actions will be executed at the same time as this.
/// Actions added will be executed in the order they were added (fifo).
/// </summary>
/// <param name="action">The action to execute.</param>
/// <param name="displayInfo">The details of the task, to de bisplayed in the tasks window.</param>
/// <param name="isHighPriority">Whether to attempt to run the action immediately - useful for UI tasks</param>
public void AddSync(Action action, string displayInfo, bool isHighPriority)
{
TaskExecutionPreference executionPreference = TaskExecutionPreference.Fifo;
if (isHighPriority)
{
executionPreference = TaskExecutionPreference.Asap;
}
Add(action, displayInfo, executionPreference);
}
public void Add(Action action, string displayInfo, TaskExecutionPreference executionPreference = TaskExecutionPreference.Fifo)
{
var glueTask = new GlueTask();
glueTask.Action = action;
glueTask.DisplayInfo = displayInfo;
bool shouldProcess = false;
lock (mSyncLockObject)
{
if (executionPreference == TaskExecutionPreference.Asap)
{
if (mSyncedActions.Count > 0)
{
// don't insert at 0, finish the current task, but insert at 1:
mSyncedActions.Insert(1, glueTask);
}
else
{
mSyncedActions.Add(glueTask);
}
}
else if (executionPreference == TaskExecutionPreference.AddOrMoveToEnd)
{
var existingAction = mSyncedActions.FirstOrDefault(item =>
item.DisplayInfo == displayInfo);
if (existingAction != null)
{
// just move it to the end
mSyncedActions.Remove(existingAction);
mSyncedActions.Add(glueTask);
}
else
{
// doesn't exist, so add it normally:
mSyncedActions.Add(glueTask);
}
}
else
{
mSyncedActions.Add(glueTask);
}
shouldProcess = mSyncedActions.Count == 1 && IsTaskProcessingEnabled;
}
CallTaskAddedOrRemoved();
if (shouldProcess)
{
ProcessNextSync();
}
}
