MiscActionsImpl.mesa
Copyright © 1984 by Xerox Corporation. All rights reserved.
Last edited by:
Kolling on March 10, 1983 6:07 pm
Taft on April 10, 1983 5:25 pm
Last Edited by: Kupfer, August 6, 1984 3:33:45 pm PDT
DIRECTORY
AccessControl
USING[AssertAlpineWheel, OperationFailed],
AlpineEnvironment
USING[Conversation, TransID],
AlpineTransaction
USING[OperationFailed],
FilePrivate
USING[EstablishTransactionContext, TransactionWork],
SkiPatrolLog
USING[notice, OpFailureInfo];
MiscActionsImpl:
PROGRAM
IMPORTS AC: AccessControl, AT: AlpineTransaction, FP: FilePrivate, SkiPatrolLog
EXPORTS AlpineTransaction =
BEGIN OPEN AE: AlpineEnvironment;
AlpineTransaction.
AssertAlpineWheel:
PUBLIC
PROCEDURE[conversation:
AE.Conversation, transID:
AE.TransID, enable:
BOOLEAN] =
BEGIN -- non system-fatal errors: OperationFailed[notAlpineWheel, regServersUnavailable], Unknown[transID].
Work:
FP.TransactionWork
--[trans, pUpdateCost]-- =
BEGIN
IF
NOT
AC.AssertAlpineWheel[conversation, trans, enable
! AC.OperationFailed => GOTO opFailed] THEN {
logProc: PROC [SkiPatrolLog.OpFailureInfo];
IF (logProc ← SkiPatrolLog.notice.operationFailed) #
NIL
THEN {
message: Rope.
ROPE ←
IF enable
THEN
"couldn't assert Alpine Wheel status"
ELSE
"couldn't turn off Alpine Wheel status";
logProc[[
what: notAlpineWheel,
transID: transID,
where: "AccessControlCacheImpl.AssertAlpineWheel",
message: message
]];
};
ERROR AT.OperationFailed[notAlpineWheel];
};
EXITS
(This error is logged by SkiPatrolLog elsewhere)
opFailed => ERROR AT.OperationFailed[regServersUnavailable];
END; -- Work
FP.EstablishTransactionContext[conversation, transID, Work];
END;
END.
CHANGE LOG
Edited on July 25, 1984 9:31:01 am PDT, by Kupfer
Add SkiPatrolLog probe.
changes to: DIRECTORY, MiscActionsImpl, AssertAlpineWheel
Edited on July 27, 1984 3:19:07 pm PDT, by Kupfer
Let the probe routine get the user RName from the transaction ID.
changes to: AssertAlpineWheel, DIRECTORY, MiscActionsImpl
Edited on August 6, 1984 3:33:38 pm PDT, by Kupfer
Remove the possible race condition in SkiPatrolLog probes by assigning the PROC to a temporary variable.
changes to: DIRECTORY, AssertAlpineWheel