# HG changeset patch
# User ca
# Date 1075295193 -3600
# Node ID c6ce4065615737eac2ea23d995cb6f1241e62b1c
# Parent  c25e1dc957b826e84626fee0a94a485c1d982a33
preps to rename immediateInterrupt and resumeImmediateInterrupt

diff -r c25e1dc957b8 -r c6ce40656157 ProcessorScheduler.st
--- a/ProcessorScheduler.st	Wed Jan 28 13:15:27 2004 +0100
+++ b/ProcessorScheduler.st	Wed Jan 28 14:06:33 2004 +0100
@@ -1066,6 +1066,87 @@
     ]
 
     "Modified: / 28.9.1998 / 11:36:53 / cg"
+!
+
+vmResumeInterrupt:id
+    "{ Pragma: +returnable }"
+
+    "signal from VM to resume a thread after finish of an osWait or wrapCall-wait. 
+     MUST be invoked with interrupts blocked.
+     This is only used with native threads."
+
+    |index pri aProcess l|
+
+    OperatingSystem interruptsBlocked ifFalse:[
+        MiniDebugger 
+            enterWithMessage:'vmResumeInterrupt with no interruptsBlocked'
+            mayProceed:true.
+    ].
+
+    index := KnownProcessIds identityIndexOf:id.
+    index ~~ 0 ifTrue:[
+        aProcess := KnownProcesses at:index.
+        "/
+        "/ CG: the situation below may happen, if the wrapCall
+        "/ finishes before the process was layed to sleep
+        "/ (i.e. schedulerIRQ arrives before the threadSwitch was finished).
+        "/ In that case, simply resume it and everything is OK.
+        "/
+        pri := aProcess priority.
+        l := quiescentProcessLists at:pri.
+        "if already running, ignore"
+        l notNil ifTrue:[
+            (l identityIndexOf:aProcess) ~~ 0 ifTrue:[
+                aProcess state == #wrapWait ifTrue:[
+                    aProcess state:#run.
+                    ^ self
+                ].
+                'ProcSched [info]: oops - resumeIRQ for already running process' infoPrintCR.
+                ^ self
+            ]
+        ] ifFalse:[
+            l := LinkedList new.
+            quiescentProcessLists at:pri put:l.
+        ].
+        l addLast:aProcess.
+        aProcess state:#run.
+    ] ifFalse:[
+        'ProcSched [info]: oops - resumeIRQ for unknown process: ' infoPrint.
+        id infoPrintCR.
+    ]
+
+    "Modified: / 28.9.1998 / 11:36:53 / cg"
+!
+
+vmSuspendInterrupt:newState
+    "{ Pragma: +returnable }"
+
+    "signal from VM to suspend a thread into a certain state.
+     Invoked before the VM switches to the scheduler process. 
+     MUST be invoked with interrupts blocked.
+     This is only used with native threads."
+
+    |pri l|
+
+    OperatingSystem interruptsBlocked ifFalse:[
+        MiniDebugger 
+            enterWithMessage:'immediateInterrupt with no interruptsBlocked'
+            mayProceed:true.
+    ].
+
+    activeProcess setStateTo:newState if:#active.
+
+    pri := activeProcess priority.
+    l := quiescentProcessLists at:pri.
+
+    "notice: this is slightly faster than putting the if-code into
+     the ifAbsent block, because [] is a shared cheap block, created at compile time
+    "
+    (l isNil or:[(l remove:activeProcess ifAbsent:nil) isNil]) ifTrue:[
+        "/ 'Processor [warning]: bad vmSuspendInterrupt: not on run list' errorPrintCR.
+        MiniDebugger enterWithMessage:'bad vmSuspendInterrupt: not on run list' mayProceed:true.
+        ^ self
+    ].
 ! !
 
 !ProcessorScheduler methodsFor:'os process handling'!
@@ -3321,7 +3402,7 @@
 !ProcessorScheduler class methodsFor:'documentation'!
 
 version
-    ^ '$Header: /cvs/stx/stx/libbasic/ProcessorScheduler.st,v 1.214 2003-11-18 15:49:53 cg Exp $'
+    ^ '$Header: /cvs/stx/stx/libbasic/ProcessorScheduler.st,v 1.215 2004-01-28 13:06:33 ca Exp $'
 ! !
 
 ProcessorScheduler initialize!