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namespace Nop.Core.Caching;
public partial interface ILocker
{
///
/// Performs some asynchronous task with exclusive lock
///
/// The key we are locking on
/// The time after which the lock will automatically be expired
/// Asynchronous task to be performed with locking
/// A task that resolves true if lock was acquired and action was performed; otherwise false
Task PerformActionWithLockAsync(string resource, TimeSpan expirationTime, Func action);
///
/// Starts a background task with "heartbeat": a status flag that will be periodically updated to signal to
/// others that the task is running and stop them from starting the same task.
///
/// The key of the background task
/// The time after which the heartbeat key will automatically be expired. Should be longer than A task that resolves true if lock was acquired and action was performed; otherwise false
Task RunWithHeartbeatAsync(string key, TimeSpan expirationTime, TimeSpan heartbeatInterval, Func action, CancellationTokenSource cancellationTokenSource = default);
///
/// Tries to cancel a background task by flagging it for cancellation on the next heartbeat.
///
/// The task's key
/// The time after which the task will be considered stopped due to system shutdown or other causes,
/// even if not explicitly canceled.
/// A task that represents requesting cancellation of the task. Note that the completion of this task does not
/// necessarily imply that the task has been canceled, only that cancellation has been requested.
Task CancelTaskAsync(string key, TimeSpan expirationTime);
///
/// Check if a background task is running.
///
/// The task's key
/// A task that resolves to true if the background task is running; otherwise false
Task IsTaskRunningAsync(string key);
}