[fireball] 34167: - Implement a gatewait case (was "tested" with a "Not yet supported" bug previously in the tree; DPRINT1 is left there for further testing). - Fix a bug in KeRemoveQueueApc: the code was always removing the first entry in the APC queue instead of the actual APC. This should fix weird user-mode timer bugs. (Spotted in bug 3354). See issue #3354 for more details.

Author: fireball
Date: Sat Jun 28 14:23:23 2008
New Revision: 34167

URL: http://svn.reactos.org/svn/reactos?rev=34167&view=rev
Log:
- Implement a gatewait case (was "tested" with a "Not yet supported" bug previously in the tree; DPRINT1 is left there for further testing).
- Fix a bug in KeRemoveQueueApc: the code was always removing the first entry in the APC queue
instead of the actual APC. This should fix weird user-mode timer bugs. (Spotted in bug 3354).
See issue #3354 for more details.

Modified:
    trunk/reactos/ntoskrnl/ke/apc.c

Modified: trunk/reactos/ntoskrnl/ke/apc.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ke/apc.c?rev=34167...
==============================================================================
--- trunk/reactos/ntoskrnl/ke/apc.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/ke/apc.c [iso-8859-1] Sat Jun 28 14:23:23 2008
@@ -212,9 +212,24 @@
                 }
                 else if (Thread->State == GateWait)
                 {
-                    /* We were in a gate wait. FIXME: Handle this */
-                    DPRINT1("Not yet supported -- Report this to Alex\n");
-                    while (TRUE);
+                    /* We were in a gate wait. Handle this. */
+                    DPRINT1("A thread was in a gate wait\n");
+
+                    /* Lock the gate */
+                    KiAcquireDispatcherObject(&Thread->GateObject->Header);
+
+                    /* Remove it from the waiters list */
+                    RemoveEntryList(&Thread->WaitBlock[0].WaitListEntry);
+
+                    /* Unlock the gate */
+                    KiReleaseDispatcherObject(&Thread->GateObject->Header);
+
+                    /* Increase the queue counter if needed */
+                    if (Thread->Queue) Thread->Queue->CurrentCount++;
+
+                    /* Put into deferred ready list with this status */
+                    Status = STATUS_KERNEL_APC;
+                    KiInsertDeferredReadyList(Thread);
                 }
             }
             else if ((Thread->State == Waiting) &&
@@ -867,7 +882,7 @@

/* Acquire the dispatcher lock and remove it from the list */
         KiAcquireDispatcherLockAtDpcLevel();
-        if (RemoveEntryList(&ApcState->ApcListHead[Apc->ApcMode]))
+        if (RemoveEntryList(&Apc->ApcListEntry))
         {
             /* Set the correct state based on the APC Mode */
             if (Apc->ApcMode == KernelMode)