/// <summary>
/// Returns a copy of the most recent instance profile credentials.
/// </summary>
public override ImmutableCredentials GetCredentials()
{
CheckIsIMDSEnabled();
ImmutableCredentials credentials = null;
// Try to acquire read lock. The thread would be blocked if another thread has write lock.
if (credentialsLock.TryEnterReadLock(credentialsLockTimeout))
{
try
{
credentials = lastRetrievedCredentials?.Copy();
if (credentials != null)
{
return(credentials);
}
}
finally
{
credentialsLock.ExitReadLock();
}
}
// If there's no credentials cached, hit IMDS directly. Try to acquire write lock.
if (credentialsLock.TryEnterWriteLock(credentialsLockTimeout))
{
try
{
// Check for last retrieved credentials again in case other thread might have already fetched it.
credentials = lastRetrievedCredentials?.Copy();
if (credentials == null)
{
credentials = FetchCredentials();
lastRetrievedCredentials = credentials;
}
}
finally
{
credentialsLock.ExitWriteLock();
}
}
if (credentials == null)
{
throw new AmazonServiceException(FailedToGetCredentialsMessage);
}
return(credentials);
}
/// <summary>
/// Returns a copy of the most recent instance profile credentials.
/// </summary>
public override ImmutableCredentials GetCredentials()
{
CheckIsIMDSEnabled();
ImmutableCredentials credentials;
try
{
refreshLock.EnterReadLock();
credentials = lastRetrievedCredentials?.Copy();
}
finally
{
refreshLock.ExitReadLock();
}
if (credentials == null)
{
throw new AmazonServiceException(FailedToGetCredentialsMessage);
}
else
{
return(credentials);
}
}
/// <summary>
/// Returns an instance of ImmutableCredentials for this instance
/// </summary>
/// <returns></returns>
public override ImmutableCredentials GetCredentials()
{
if (this._credentials == null)
{
return(null);
}
return(_credentials.Copy());
}
/// <summary>
/// Returns a copy of the most recent instance profile credentials.
/// </summary>
public override ImmutableCredentials GetCredentials()
{
CheckIsIMDSEnabled();
var credentials = lastRetrievedCredentials?.Copy();
// If there's no credentials cached, hit IMDS directly.
if (credentials == null)
{
credentials = FetchCredentials();
lastRetrievedCredentials = credentials;
}
if (credentials == null)
{
throw new AmazonServiceException(FailedToGetCredentialsMessage);
}
return(credentials);
}
/// <summary>
/// Returns an instance of ImmutableCredentials for this instance
/// </summary>
/// <returns></returns>
public override ImmutableCredentials GetCredentials()
{
return(_lastCredentials.Copy());
}
