// try acquire lock and then execute the operation
// return true if lock acquired and operation executed
public static bool TryLockOperation(this IOperationLock lockObj,
Action operation,
TimeSpan timeout)
{
var elapsed = TimeSpan.Zero;
while (!lockObj.Lock())
{
if (elapsed >= timeout)
{
return(false);
}
Thread.Sleep(_sleepInterval);
elapsed += _sleepInterval;
}
try
{
operation();
return(true);
}
finally
{
lockObj.Release();
}
}
public static async Task <bool> TryLockOperationAsync(this IOperationLock lockObj,
Func <Task> operation,
TimeSpan timeout)
{
var interval = TimeSpan.FromMilliseconds(250);
var elapsed = TimeSpan.Zero;
while (!lockObj.Lock())
{
if (elapsed >= timeout)
{
return(false);
}
await Task.Delay(_sleepInterval);
elapsed += _sleepInterval;
}
try
{
await operation();
return(true);
}
finally
{
lockObj.Release();
}
}
public static async Task<T> LockOperationAsync<T>(this IOperationLock lockObj, Func<Task<T>> operation, string operationName, TimeSpan timeout)
{
bool isLocked = await WaitToLockAsync(lockObj, operationName, timeout);
if (!isLocked)
{
var lockInfo = lockObj.LockInfo;
throw new LockOperationException(String.Format(CultureInfo.CurrentCulture, Resources.Error_OperationLockTimeout, operationName, lockInfo.OperationName, lockInfo.AcquiredDateTime));
}
try
{
return await operation();
}
finally
{
lockObj.Release();
}
}
public static async Task <T> LockOperationAsync <T>(this IOperationLock lockObj, Func <Task <T> > operation, TimeSpan timeout)
{
bool isLocked = await WaitToLockAsync(lockObj, timeout);
if (!isLocked)
{
throw new LockOperationException(String.Format(CultureInfo.CurrentCulture, Resources.Error_OperationLockTimeout, timeout.TotalSeconds));
}
try
{
return(await operation());
}
finally
{
lockObj.Release();
}
}
public static async Task <bool> TryLockOperationAsync(this IOperationLock lockObj,
Func <Task> operation,
TimeSpan timeout)
{
bool isLocked = await WaitToLockAsync(lockObj, timeout);
if (!isLocked)
{
return(false);
}
try
{
await operation();
return(true);
}
finally
{
lockObj.Release();
}
}
public static void LockOperation(this IOperationLock lockObj,
Action operation,
Action onBusy)
{
bool lockTaken = lockObj.Lock();
if (!lockTaken)
{
onBusy();
return;
}
try
{
operation();
}
finally
{
if (lockTaken)
{
lockObj.Release();
}
}
}
public void Release()
{
_lock.Release();
}
public virtual void Release()
{
_lock.Release();
}
