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global-functions: $ScriptLock: use a limit on lock...

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... to make sure it does not lock forever.
This commit is contained in:
Christian Hesse 2021-07-01 10:26:16 +02:00
parent 7de3457f44
commit 0b4c1861cf
1 changed files with 6 additions and 4 deletions
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10
global-functions
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@ -906,7 +906,7 @@
:set ScriptLock do={
:local Script [ :tostr $1 ];
:local DoReturn $2;
:local DoWait $3;
:local WaitMax ([ :tonum $3 ] * 10);
:global GetRandomNumber;
:global IfThenElse;
@ -950,8 +950,10 @@
:local MyTicket [ $GetRandomNumber ];
:set ($ScriptLockOrder->$Script) [ $AddTicket ($ScriptLockOrder->$Script) $MyTicket ];
:while ($DoWait = true && (($ScriptLockOrder->$Script->0) != $MyTicket || [ :len ($ScriptLockOrder->$Script) ] < $JobCount)) do={
:local WaitCount 0;
:while ($WaitMax > $WaitCount && (($ScriptLockOrder->$Script->0) != $MyTicket || [ :len ($ScriptLockOrder->$Script) ] < $JobCount)) do={
:delay 100ms;
:set WaitCount ($WaitCount + 1);
:set JobCount [ :len [ / system script job find where script=$Script ] ];
}
@ -961,8 +963,8 @@
}
:set ($ScriptLockOrder->$Script) [ $RemoveTicket ($ScriptLockOrder->$Script) $MyTicket ];
$LogPrintExit2 info $0 ("Script '" . $Script . "' started more than once... Aborting.") \
[ $IfThenElse ($DoReturn = true) false true ];
$LogPrintExit2 info $0 ("Script '" . $Script . "' started more than once" . [ $IfThenElse ($WaitCount > 0) \
" and timed out waiting for lock" "" ] . "... Aborting.") [ $IfThenElse ($DoReturn = true) false true ];
:return true;
}