Source code of Windows XP (NT5)
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/****************************************************************************/
-- tssdsp.sql
--
-- Terminal Server Session Directory stored procedures.
--
-- Copyright (C) 2000 Microsoft Corporation
/****************************************************************************/
/****************************************************************************/
-- SP_TSSDServerOnline
--
-- Called by TSSDSQL to indicate a new server is coming up. Removes all
-- previous entries related to this server in case of unexpected shutdown.
-- Returns a 2-entry recordset with the values (ServerID, ClusterID) that
-- are used in later stored procedure calls.
/****************************************************************************/
IF EXISTS (SELECT name FROM sysobjects
WHERE name = 'SP_TSSDServerOnline' and type = 'P')
DROP PROCEDURE SP_TSSDServerOnline
GO
CREATE PROCEDURE SP_TSSDServerOnline
@ServerAddress nvarchar(63),
@ClusterName nvarchar(63)
AS
DECLARE @ClusterID int
DECLARE @ServerID int
DECLARE @ParsedClusterName nvarchar(63)
-- Turn off intermediate returns to the client. Needed to help ADO
-- return a valid final recordset, plus reduces round-trips on network.
SET NOCOUNT ON
-- We need to perform some locking on the tables to make sure
-- of the data integrity. We are assuming default isolation level
-- of Read Committed.
BEGIN TRANSACTION
SET @ServerID = (SELECT MIN(ServerID) FROM TSSD_Servers
WHERE ServerAddress = @ServerAddress)
DELETE FROM TSSD_Sessions WHERE ServerID = @ServerID
DELETE FROM TSSD_Servers WHERE ServerID = @ServerID
-- The TS may end up sending a NULL param when it's really an empty
-- string. Handle that gracefully.
IF (@ClusterName IS NULL) BEGIN
SET @ParsedClusterName = ""
END
ELSE BEGIN
SET @ParsedClusterName = @ClusterName
END
-- If the cluster does not exist, create it.
SET @ClusterID = (SELECT MIN(ClusterID) FROM TSSD_Clusters
WHERE ClusterName = @ParsedClusterName)
IF (@ClusterID IS NULL) BEGIN
INSERT INTO TSSD_Clusters (ClusterName) VALUES (@ParsedClusterName)
SET @ClusterID = (SELECT MIN(ClusterID) FROM TSSD_Clusters
WHERE ClusterName = @ParsedClusterName)
END
INSERT INTO TSSD_Servers (ServerAddress, ClusterID, AlmostInTimeLow,
AlmostInTimeHigh) VALUES (@ServerAddress, @ClusterID, 0, 0)
-- Generate the return recordset.
SELECT ServerID, @ClusterID FROM TSSD_Servers WHERE
ServerAddress = @ServerAddress
-- Finished the update.
COMMIT TRANSACTION
GO
/****************************************************************************/
-- SP_TSSDServerOffline
--
-- Called by TSSDSQL to indicate a server is going offline in a graceful
-- fashion. Removes all remaining entries related to this server.
/****************************************************************************/
IF EXISTS (SELECT name FROM sysobjects
WHERE name = 'SP_TSSDServerOffline' and type = 'P')
DROP PROCEDURE SP_TSSDServerOffline
GO
CREATE PROCEDURE SP_TSSDServerOffline
@ServerID int
AS
-- Turn off intermediate returns to the client. Needed to help ADO
-- return a valid final recordset, plus reduces round-trips on network.
SET NOCOUNT ON
-- We need to perform some locking on the tables to make sure
-- of the data integrity. We are assuming default isolation level
-- of Read Committed.
BEGIN TRANSACTION
DELETE FROM TSSD_Sessions WHERE ServerID = @ServerID
DELETE FROM TSSD_Servers WHERE ServerID = @ServerID
-- Finished the update.
COMMIT TRANSACTION
GO
/****************************************************************************/
-- SP_TSSDGetUserDisconnectedSessions
--
-- Called by the TSSDSQL directory provider to return a recordset
-- containing the info needed to populate the disconnected session info
-- blocks.
/****************************************************************************/
IF EXISTS (SELECT name FROM sysobjects
WHERE name = 'SP_TSSDGetUserDisconnectedSessions' and type = 'P')
DROP PROCEDURE SP_TSSDGetUserDisconnectedSessions
GO
CREATE PROCEDURE SP_TSSDGetUserDisconnectedSessions
@UserName nvarchar(255),
@Domain nvarchar(127),
@ClusterID int
AS
-- Turn off intermediate returns to the client. Needed to help ADO
-- return a valid final recordset, plus reduces round-trips on network.
SET NOCOUNT ON
-- We need to perform some locking on the tables to make sure
-- of the data integrity. We are assuming default isolation level
-- of Read Committed.
BEGIN TRANSACTION
-- Create the result set with the fields from the (only) user record.
SELECT ServerAddress, SessionID, TSProtocol, CreateTimeLow,
CreateTimeHigh, DisconnectionTimeLow, DisconnectionTimeHigh,
ApplicationType, ResolutionWidth, ResolutionHeight,
ColorDepth
FROM TSSD_Sessions JOIN TSSD_Servers
ON (TSSD_Sessions.ServerID = TSSD_Servers.ServerID)
WHERE UserName = @UserName AND Domain = @Domain AND State = 1 AND
ClusterID = @ClusterID
-- Finished the update.
COMMIT TRANSACTION
GO
/****************************************************************************/
-- SP_TSSDCreateSession
--
-- Adds a session record to the system.
/****************************************************************************/
IF EXISTS (SELECT name FROM sysobjects
WHERE name = 'SP_TSSDCreateSession' and type = 'P')
DROP PROCEDURE SP_TSSDCreateSession
GO
CREATE PROCEDURE SP_TSSDCreateSession
@UserName nvarchar(255),
@Domain nvarchar(127),
@ServerID int,
@SessionID int,
@TSProtocol int,
@AppType nvarchar(255),
@ResolutionWidth int,
@ResolutionHeight int,
@ColorDepth int,
@CreateTimeLow int,
@CreateTimeHigh int
AS
-- Turn off intermediate returns to the client. Needed to help ADO
-- return a valid recordset, plus reduces round-trips on network.
SET NOCOUNT ON
-- We need to perform some locking on the tables to make sure
-- of the data integrity. We are assuming default isolation level
-- of Read Committed.
BEGIN TRANSACTION
-- If this ServerName/SessionID combo already exists in the table,
-- remove it.
DELETE FROM TSSD_Sessions WHERE ServerID = @ServerID AND
SessionID = @SessionID
-- Add the session.
INSERT TSSD_Sessions (UserName, Domain, ServerID,
SessionID, TSProtocol, CreateTimeLow,
CreateTimeHigh, ApplicationType, ResolutionWidth, ResolutionHeight,
ColorDepth)
VALUES (@UserName, @Domain, @ServerID, @SessionID,
@TSProtocol, @CreateTimeLow, @CreateTimeHigh, @AppType,
@ResolutionWidth, @ResolutionHeight, @ColorDepth)
-- Finished the update.
COMMIT TRANSACTION
GO
/****************************************************************************/
-- SP_TSSDDeleteSession
--
-- Removes a session from the database.
/****************************************************************************/
IF EXISTS (SELECT name FROM sysobjects
WHERE name = 'SP_TSSDDeleteSession' and type = 'P')
DROP PROCEDURE SP_TSSDDeleteSession
GO
CREATE PROCEDURE SP_TSSDDeleteSession
@ServerID int,
@SessionID int
AS
BEGIN TRANSACTION
DELETE FROM TSSD_Sessions WHERE ServerID = @ServerID AND
SessionID = @SessionID
COMMIT TRANSACTION
GO
/****************************************************************************/
-- SP_TSSDSetSessionDisconnected
--
-- Changes the session to disconnected and sets the disconnection time.
/****************************************************************************/
IF EXISTS (SELECT name FROM sysobjects
WHERE name = 'SP_TSSDSetSessionDisconnected' and type = 'P')
DROP PROCEDURE SP_TSSDSetSessionDisconnected
GO
CREATE PROCEDURE SP_TSSDSetSessionDisconnected
@ServerID int,
@SessionID int,
@DiscTimeLow int,
@DisctimeHigh int
AS
BEGIN TRANSACTION
UPDATE TSSD_Sessions SET State = 1, DisconnectionTimeLow = @DiscTimeLow,
DisconnectionTimeHigh = @DiscTimeHigh
WHERE ServerID = @ServerID AND SessionID = @SessionID
COMMIT TRANSACTION
GO
/****************************************************************************/
-- SP_TSSDSetSessionReconnected
--
-- Changes the session to connected and updates the fields that can change on
-- reconnection.
/****************************************************************************/
IF EXISTS (SELECT name FROM sysobjects
WHERE name = 'SP_TSSDSetSessionReconnected' and type = 'P')
DROP PROCEDURE SP_TSSDSetSessionReconnected
GO
CREATE PROCEDURE SP_TSSDSetSessionReconnected
@ServerID int,
@SessionID int,
@TSProtocol int,
@ResWidth int,
@ResHeight int,
@ColorDepth int
AS
BEGIN TRANSACTION
UPDATE TSSD_Sessions SET State = 0, TSProtocol = @TSProtocol,
ResolutionWidth = @ResWidth, ResolutionHeight = @ResHeight,
ColorDepth = @ColorDepth
WHERE ServerID = @ServerID AND SessionID = @SessionID
UPDATE TSSD_Servers SET AlmostInTimeLow = 0, AlmostInTimeHigh = 0
WHERE ServerID = @ServerID
COMMIT TRANSACTION
GO
/****************************************************************************/
-- SP_TSSDSetServerReconnectPending
--
-- If the specified server has 0's in its Almost-In-Time values, add the
-- timestamp passed in. Used by Directory Integrity Service
/****************************************************************************/
IF EXISTS (SELECT name FROM sysobjects
WHERE name = 'SP_TSSDSetServerReconnectPending' and type = 'P')
DROP PROCEDURE SP_TSSDSetServerReconnectPending
GO
CREATE PROCEDURE SP_TSSDSetServerReconnectPending
@ServerAddress nvarchar(63),
@AlmostTimeLow int,
@AlmostTimeHigh int
AS
DECLARE @ServerID int
BEGIN TRANSACTION
SET @ServerID = (SELECT MIN(ServerID) FROM TSSD_Servers
WHERE ServerAddress = @ServerAddress)
UPDATE TSSD_Servers SET AlmostInTimeLow = @AlmostTimeLow,
AlmostInTimeHigh = @AlmostTimeHigh
WHERE ServerID = @ServerID AND AlmostInTimeLow = 0 AND
AlmostInTimeHigh = 0
COMMIT TRANSACTION
GO