xnu-792.17.14.tar.gz

[apple/xnu.git] / iokit / Kernel / IOService.cpp

diff --git a/iokit/Kernel/IOService.cpp b/iokit/Kernel/IOService.cpp
index 781fad86c4b2ad44959da3a5d610c5f54efe2536..7feca38f6a28fcb0aaff6a5bdae9300298e87ebf 100644 (file)
--- a/iokit/Kernel/IOService.cpp
+++ b/iokit/Kernel/IOService.cpp
@@ -1,23 +1,29 @@
 /*
  * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
  
 #include <IOKit/system.h>
@@ -99,6 +105,8 @@ const OSSymbol *             gIOCommandPoolSizeKey;
 const OSSymbol *               gIOConsoleUsersKey;
 const OSSymbol *               gIOConsoleSessionUIDKey;
 const OSSymbol *               gIOConsoleUsersSeedKey;
+const OSSymbol *        gIOConsoleSessionOnConsoleKey;
+const OSSymbol *        gIOConsoleSessionSecureInputPIDKey;
 
 static int                     gIOResourceGenerationCount;
 
@@ -248,6 +256,8 @@ void IOService::initialize( void )
     gIOConsoleUsersKey         = OSSymbol::withCStringNoCopy( kIOConsoleUsersKey);
     gIOConsoleSessionUIDKey    = OSSymbol::withCStringNoCopy( kIOConsoleSessionUIDKey);
     gIOConsoleUsersSeedKey     = OSSymbol::withCStringNoCopy( kIOConsoleUsersSeedKey);
+    gIOConsoleSessionOnConsoleKey = OSSymbol::withCStringNoCopy( kIOConsoleSessionOnConsoleKey);
+    gIOConsoleSessionSecureInputPIDKey = OSSymbol::withCStringNoCopy( kIOConsoleSessionSecureInputPIDKey);
     gIOConsoleUsersSeedValue   = OSData::withBytesNoCopy(&gIOConsoleUsersSeed, sizeof(gIOConsoleUsersSeed));
 
     gNotificationLock          = IORecursiveLockAlloc();
@@ -260,6 +270,7 @@ void IOService::initialize( void )
         && gIOPublishNotification && gIOMatchedNotification
         && gIOTerminatedNotification && gIOServiceKey
        && gIOConsoleUsersKey && gIOConsoleSessionUIDKey
+    && gIOConsoleSessionOnConsoleKey && gIOConsoleSessionSecureInputPIDKey
        && gIOConsoleUsersSeedKey && gIOConsoleUsersSeedValue);
 
     gJobsLock  = IOLockAlloc();
@@ -1278,18 +1289,18 @@ IOReturn IOService::messageClient( UInt32 type, OSObject * client,
     return( ret );
 }
 
-void IOService::applyToInterested( const OSSymbol * typeOfInterest,
-                                   OSObjectApplierFunction applier,
-                                   void * context )
+static void
+applyToInterestNotifiers(const IORegistryEntry *target,
+                        const OSSymbol * typeOfInterest,
+                        OSObjectApplierFunction applier,
+                        void * context )
 {
     OSArray *          copyArray = 0;
 
-    applyToClients( (IOServiceApplierFunction) applier, context );
-
     LOCKREADNOTIFY();
 
     IOCommand *notifyList =
-       OSDynamicCast( IOCommand, getProperty( typeOfInterest ));
+       OSDynamicCast( IOCommand, target->getProperty( typeOfInterest ));
 
     if( notifyList) {
         copyArray = OSArray::withCapacity(1);
@@ -1314,6 +1325,14 @@ void IOService::applyToInterested( const OSSymbol * typeOfInterest,
     }
 }
 
+void IOService::applyToInterested( const OSSymbol * typeOfInterest,
+                                   OSObjectApplierFunction applier,
+                                   void * context )
+{
+    applyToClients( (IOServiceApplierFunction) applier, context );
+    applyToInterestNotifiers(this, typeOfInterest, applier, context);
+}
+
 struct MessageClientsContext {
     IOService *        service;
     UInt32     type;
@@ -2881,21 +2900,15 @@ UInt32 IOService::_adjustBusy( SInt32 delta )
             next->unlockForArbitration();
 
         if( (wasQuiet || nowQuiet) ) {
-            OSArray *          array;
-            unsigned int       index;
-            OSObject *         interested;
-
-            array = OSDynamicCast( OSArray, next->getProperty( gIOBusyInterest ));
-            if( array) {
-                LOCKREADNOTIFY();
-                for( index = 0;
-                     (interested = array->getObject( index ));
-                     index++) {
-                    next->messageClient(kIOMessageServiceBusyStateChange,
-                                     interested, (void *) wasQuiet /* busy now */);
-                }
-                UNLOCKNOTIFY();
-            }
+           MessageClientsContext context;
+
+           context.service  = next;
+           context.type     = kIOMessageServiceBusyStateChange;
+           context.argument = (void *) wasQuiet;       // busy now
+           context.argSize  = 0;
+
+           applyToInterestNotifiers( next, gIOBusyInterest, 
+                                    &messageClientsApplier, &context );
 
             if( nowQuiet && (next == gIOServiceRoot))
                 OSMetaClass::considerUnloads();