Portability	portable
Stability	experimental
Maintainer	Stefan Schmidt (stefanschmidt@web.de)

Holumbus.Network.Site

Contents

Datatypes
Operations on the SiteId
Operations on the SiteMap

Description

Version : 0.1

Just a little Id to help us to decide if two thread are running in the same program or just on the same machine or on differen machines.

Synopsis

Datatypes

data SiteId Source

The datatype of the SiteId, it contains the hostname and a processid, so it is possible to decide if two site ids belong to the same process or the the same computer or are on distinct computers.

Instances

Eq SiteId
Ord SiteId
Show SiteId
Binary SiteId
XmlPickler SiteId

type SiteMap = Map HostName (Set SiteId)Source

Just a little Map to hold the SiteIds an to get the neighbout Ids.

Operations on the SiteId

getSiteId :: IO SiteId Source

Gets the SiteId for the calling program.

getSiteHost :: SiteId -> HostName Source

Extracts the Hostname from the SiteId.

getSiteProcess :: SiteId -> ProcessID Source

Extracts the ProcessID from the SiteId.

isSameHost :: SiteId -> SiteId -> Bool Source

Test, if the two Ids are located on the same host.

isSameProcess :: SiteId -> SiteId -> Bool Source

Test, if the two Ids are located on the same host an in the same process.

nearestId :: SiteId -> [SiteId] -> Maybe SiteId Source

Gets the nearest item from an Id-list compared to a given Id.

Operations on the SiteMap

emptySiteMap :: SiteMap Source

Empty SiteId-Map.

addIdToMap :: SiteId -> SiteMap -> SiteMap Source

Adds an id to the map.

deleteIdFromMap :: SiteId -> SiteMap -> SiteMap Source

Deletes an id from the map.

deleteHostFromMap :: HostName -> SiteMap -> SiteMap Source

Delete a hostname an all its ids from the map.

isSiteIdMember :: SiteId -> SiteMap -> Bool Source

Test, if the site id is already in the list.

getNeighbourSiteIds :: SiteId -> SiteMap -> Set SiteId Source

Gets all ids which are on the same host, but not the original siteid itself.