xnu-7195.50.7.100.1.tar.gz

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

diff --git a/iokit/Kernel/IODataQueue.cpp b/iokit/Kernel/IODataQueue.cpp
index dde414b6ac41c8029de65f0e0d1d1624d1255138..35d6e09c0174e709437b2f72c0ff2d61d21cffb2 100644 (file)
--- a/iokit/Kernel/IODataQueue.cpp
+++ b/iokit/Kernel/IODataQueue.cpp
@@ -26,6 +26,8 @@
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 
+#define IOKIT_ENABLE_SHARED_PTR
+
 #define DISABLE_DATAQUEUE_WARNING
 
 #include <IOKit/IODataQueue.h>
@@ -36,6 +38,7 @@
 #include <IOKit/IOLib.h>
 #include <IOKit/IOMemoryDescriptor.h>
 #include <libkern/OSAtomic.h>
+#include <libkern/c++/OSSharedPtr.h>
 
 struct IODataQueueInternal {
        mach_msg_header_t msg;
@@ -54,29 +57,28 @@ struct IODataQueueInternal {
 
 OSDefineMetaClassAndStructors(IODataQueue, OSObject)
 
-IODataQueue *IODataQueue::withCapacity(UInt32 size)
+OSSharedPtr<IODataQueue>
+IODataQueue::withCapacity(UInt32 size)
 {
-       IODataQueue *dataQueue = new IODataQueue;
+       OSSharedPtr<IODataQueue> dataQueue = OSMakeShared<IODataQueue>();
 
        if (dataQueue) {
                if (!dataQueue->initWithCapacity(size)) {
-                       dataQueue->release();
-                       dataQueue = NULL;
+                       return nullptr;
                }
        }
 
        return dataQueue;
 }
 
-IODataQueue *
+OSSharedPtr<IODataQueue>
 IODataQueue::withEntries(UInt32 numEntries, UInt32 entrySize)
 {
-       IODataQueue *dataQueue = new IODataQueue;
+       OSSharedPtr<IODataQueue> dataQueue = OSMakeShared<IODataQueue>();
 
        if (dataQueue) {
                if (!dataQueue->initWithEntries(numEntries, entrySize)) {
-                       dataQueue->release();
-                       dataQueue = NULL;
+                       return nullptr;
                }
        }
 
@@ -288,10 +290,10 @@ IODataQueue::sendDataAvailableNotification()
        }
 }
 
-IOMemoryDescriptor *
+OSSharedPtr<IOMemoryDescriptor>
 IODataQueue::getMemoryDescriptor()
 {
-       IOMemoryDescriptor *descriptor = NULL;
+       OSSharedPtr<IOMemoryDescriptor> descriptor;
        UInt32              queueSize;
 
        queueSize = ((IODataQueueInternal *) notifyMsg)->queueSize;