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--- xnu/xnu-12377.121.6/iokit/Kernel/IOPMinformeeList.cpp
+++ xnu/xnu-1228/iokit/Kernel/IOPMinformeeList.cpp
@@ -2,7 +2,7 @@
* Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ *
* 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
@@ -11,10 +11,10 @@
* 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.
- *
+ *
* 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,
@@ -22,7 +22,7 @@
* 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_OSREFERENCE_LICENSE_HEADER_END@
*/
#include <IOKit/pwr_mgt/IOPM.h>
@@ -30,70 +30,64 @@
#include <IOKit/pwr_mgt/IOPMinformee.h>
#define super OSObject
-OSDefineMetaClassAndStructors(IOPMinformeeList, OSObject)
+OSDefineMetaClassAndStructors(IOPMinformeeList,OSObject)
//*********************************************************************************
// init
//
//*********************************************************************************
-void
-IOPMinformeeList::initialize( void )
-{
- firstItem = NULL;
- length = 0;
+void IOPMinformeeList::initialize ( void )
+{
+ firstItem = NULL;
+ length = 0;
}
//******************************************************************************
// getSharedRecursiveLock
//
//******************************************************************************
-IORecursiveLock *
-IOPMinformeeList::getSharedRecursiveLock( void )
-{
- static IORecursiveLock *sharedListLock = NULL;
-
- /* A running system could have 50-60+ instances of IOPMInformeeList.
- * They'll share this lock, since list insertion and removal is relatively
- * rare, and generally tied to major events like device discovery.
- *
- * getSharedRecursiveLock() is called from IOStartIOKit to initialize
- * the sharedListLock before any IOPMinformeeLists are instantiated.
- *
- * The IOPMinformeeList class will be around for the lifetime of the system,
- * we don't worry about freeing this lock.
- */
-
- if (NULL == sharedListLock) {
- sharedListLock = IORecursiveLockAlloc();
- }
- return sharedListLock;
-}
-
-//*********************************************************************************
+IORecursiveLock *IOPMinformeeList::getSharedRecursiveLock( void )
+{
+ static IORecursiveLock *sharedListLock = NULL;
+
+ /* A running system could have 50-60+ instances of IOPMInformeeList.
+ * They'll share this lock, since list insertion and removal is relatively
+ * rare, and generally tied to major events like device discovery.
+ *
+ * getSharedRecursiveLock() is called from IOStartIOKit to initialize
+ * the sharedListLock before any IOPMinformeeLists are instantiated.
+ *
+ * The IOPMinformeeList class will be around for the lifetime of the system,
+ * we don't worry about freeing this lock.
+ */
+
+ if ( NULL == sharedListLock )
+ {
+ sharedListLock = IORecursiveLockAlloc();
+ }
+ return sharedListLock;
+}
+
+ //*********************************************************************************
// appendNewInformee
-//
-//*********************************************************************************
-IOPMinformee *
-IOPMinformeeList::appendNewInformee( IOService * newObject )
-{
- IOPMinformee * newInformee;
-
- if (!newObject) {
- return NULL;
- }
-
- newInformee = IOPMinformee::withObject(newObject);
-
- if (!newInformee) {
- return NULL;
- }
-
- if (IOPMNoErr == addToList(newInformee)) {
- return newInformee;
- } else {
- newInformee->release();
- return NULL;
- }
+ //
+ //*********************************************************************************
+IOPMinformee *IOPMinformeeList::appendNewInformee ( IOService * newObject )
+{
+ IOPMinformee * newInformee;
+
+ if (!newObject)
+ return NULL;
+
+ newInformee = IOPMinformee::withObject (newObject);
+
+ if (!newInformee)
+ return NULL;
+
+ if( IOPMNoErr == addToList (newInformee))
+ return newInformee;
+ else
+ return NULL;
}
@@ -102,33 +96,36 @@
// *OBSOLETE* do not call from outside of this file.
// Try appendNewInformee() instead
//*********************************************************************************
-IOReturn
-IOPMinformeeList::addToList( IOPMinformee * newInformee )
-{
- IORecursiveLock *listLock = getSharedRecursiveLock();
- IOReturn ret = kIOReturnError;
-
- if (!listLock) {
- return ret;
- }
-
- IORecursiveLockLock(listLock);
-
- // Is new object already in the list?
- if (findItem(newInformee->whatObject) != NULL) {
- // object is present; just exit
- goto unlock_and_exit;
- }
-
- // add it to the front of the list
- newInformee->nextInList = firstItem;
- firstItem = newInformee;
- length++;
- ret = IOPMNoErr;
+IOReturn IOPMinformeeList::addToList ( IOPMinformee * newInformee )
+{
+ IOPMinformee * nextInformee;
+ IORecursiveLock *listLock = getSharedRecursiveLock();
+
+ if(!listLock)
+ return kIOReturnError;
+
+ IORecursiveLockLock(listLock);
+ nextInformee = firstItem;
+
+ // Is new object already in the list?
+ while ( nextInformee != NULL )
+ {
+ if ( nextInformee->whatObject == newInformee->whatObject )
+ {
+ // object is present; just exit
+ goto unlock_and_exit;
+ }
+ nextInformee = nextInList(nextInformee);
+ }
+
+ // add it to the front of the list
+ newInformee->nextInList = firstItem;
+ firstItem = newInformee;
+ length++;
unlock_and_exit:
- IORecursiveLockUnlock(listLock);
- return ret;
+ IORecursiveLockUnlock(listLock);
+ return IOPMNoErr;
}
@@ -138,43 +135,43 @@
// Find the item in the list, unlink it, and free it.
//*********************************************************************************
-IOReturn
-IOPMinformeeList::removeFromList( IOService * theItem )
-{
- IOPMinformee * item = firstItem;
- IOPMinformee * temp;
- IORecursiveLock *listLock = getSharedRecursiveLock();
-
- if (NULL == item) {
- return IOPMNoErr;
- }
- if (!listLock) {
- return kIOReturnError;
- }
-
- IORecursiveLockLock( listLock );
-
- if (item->whatObject == theItem) {
- firstItem = item->nextInList;
- length--;
- item->release();
- goto unlock_and_exit;
- }
-
- while (item->nextInList != NULL) {
- if (item->nextInList->whatObject == theItem) {
- temp = item->nextInList;
- item->nextInList = temp->nextInList;
- length--;
- temp->release();
- goto unlock_and_exit;
- }
- item = item->nextInList;
- }
+IOReturn IOPMinformeeList::removeFromList ( IOService * theItem )
+{
+ IOPMinformee * item = firstItem;
+ IOPMinformee * temp;
+ IORecursiveLock *listLock = getSharedRecursiveLock();
+
+ if ( NULL == item )
+ return IOPMNoErr;
+ if(!listLock)
+ return kIOReturnError;
+
+ IORecursiveLockLock( listLock );
+
+ if ( item->whatObject == theItem )
+ {
+ firstItem = item->nextInList;
+ length--;
+ item->release();
+ goto unlock_and_exit;
+ }
+
+ while ( item->nextInList != NULL )
+ {
+ if ( item->nextInList->whatObject == theItem )
+ {
+ temp = item->nextInList;
+ item->nextInList = temp->nextInList;
+ length--;
+ temp->release();
+ goto unlock_and_exit;
+ }
+ item = item->nextInList;
+ }
unlock_and_exit:
- IORecursiveLockUnlock(listLock);
- return IOPMNoErr;
+ IORecursiveLockUnlock(listLock);
+ return IOPMNoErr;
}
@@ -183,10 +180,9 @@
//
//*********************************************************************************
-IOPMinformee *
-IOPMinformeeList::firstInList( void )
-{
- return firstItem;
+IOPMinformee * IOPMinformeeList::firstInList ( void )
+{
+ return firstItem;
}
//*********************************************************************************
@@ -194,13 +190,12 @@
//
//*********************************************************************************
-IOPMinformee *
-IOPMinformeeList::nextInList( IOPMinformee * currentItem )
-{
- if (currentItem != NULL) {
- return currentItem->nextInList;
- }
- return NULL;
+IOPMinformee * IOPMinformeeList::nextInList ( IOPMinformee * currentItem )
+{
+ if ( currentItem != NULL ) {
+ return (currentItem->nextInList);
+ }
+ return NULL;
}
//*********************************************************************************
@@ -208,10 +203,9 @@
//
//*********************************************************************************
-unsigned long
-IOPMinformeeList::numberOfItems( void )
-{
- return length;
+unsigned long IOPMinformeeList::numberOfItems ( void )
+{
+ return length;
}
//*********************************************************************************
@@ -221,19 +215,18 @@
// by the parameter. Return a pointer to the list item or NULL.
//*********************************************************************************
-IOPMinformee *
-IOPMinformeeList::findItem( IOService * driverOrChild )
-{
- IOPMinformee * nextObject;
-
- nextObject = firstInList();
- while (nextObject != NULL) {
- if (nextObject->whatObject == driverOrChild) {
- return nextObject;
- }
- nextObject = nextInList(nextObject);
- }
- return NULL;
+IOPMinformee * IOPMinformeeList::findItem ( IOService * driverOrChild )
+{
+ IOPMinformee * nextObject;
+
+ nextObject = firstInList();
+ while ( nextObject != NULL ) {
+ if ( nextObject->whatObject == driverOrChild ) {
+ return nextObject;
+ }
+ nextObject = nextInList(nextObject);
+ }
+ return NULL;
}
@@ -244,16 +237,16 @@
// Free all items in the list, and then free the list itself
//*********************************************************************************
-void
-IOPMinformeeList::free(void )
-{
- IOPMinformee * next = firstItem;
-
- while (next != NULL) {
- firstItem = next->nextInList;
- length--;
- next->release();
- next = firstItem;
- }
- super::free();
-}
+void IOPMinformeeList::free (void )
+{
+ IOPMinformee * next = firstItem;
+
+ while ( next != NULL ) {
+ firstItem = next->nextInList;
+ length--;
+ next->release();
+ next = firstItem;
+ }
+super::free();
+}
+