/// <summary>
/// Called after a thread checked and can commit. This will assign it a
/// unique stamp to use for writing. This method will enter the new stamp
/// into the stamp.Version. It must be done here to guarantee that no
/// GetReaderTicket will return your stamp number before it has been
/// written into your stamp lock! After completing your write, place your
/// changes into the ticket, and this class will trim the old versions at
/// the correct time. It is critical that this be done, which is why this
/// method returns it as an out param - to make sure no exception can
/// cause us to lose the ref to the ticket, if it is already in the chain.
/// </summary>
public static void NewVersion(WriteStamp stamp, out WriteTicket ticket)
{
// this version is running under the _checkLock, guaranteed to be alone!
var newNode = new VersionEntry();
ticket = newNode;
var newStamp = _current.Stamp + 1;
newNode.SetStamp(newStamp);
stamp.Version = newStamp;
_current.Later = newNode;
_current = newNode;
}
/// <summary>
/// Called after a thread checked and can commit. This will assign it a
/// unique stamp to use for writing. This method will enter the new stamp
/// into the stamp.Version. It must be done here to guarantee that no
/// GetReaderTicket will return your stamp number before it has been
/// written into your stamp lock! After completing your write, place your
/// changes into the ticket, and this class will trim the old versions at
/// the correct time. It is critical that this be done, which is why this
/// method returns it as an out param - to make sure no exception can
/// cause us to lose the ref to the ticket, if it is already in the chain.
/// </summary>
public static void NewVersion(WriteStamp stamp, out WriteTicket ticket)
{
// this version is running under the _checkLock, guaranteed to be alone!
var newNode = new VersionEntry();
ticket = newNode;
var newStamp = _current.Stamp + 1;
newNode.SetStamp(newStamp);
stamp.Version = newStamp;
_current.Later = newNode;
_current = newNode;
}
