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--- xnu/xnu-344.34/libkern/c++/OSMetaClass.cpp
+++ xnu/xnu-792.6.56/libkern/c++/OSMetaClass.cpp
@@ -3,26 +3,26 @@
*
* @APPLE_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. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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@
*/
/* OSMetaClass.cpp created by gvdl on Fri 1998-11-17 */
#include <string.h>
-#include <sys/systm.h>
#include <libkern/OSReturn.h>
@@ -41,8 +41,8 @@
__BEGIN_DECLS
+#include <sys/systm.h>
#include <mach/mach_types.h>
-#include <mach/etap_events.h>
#include <kern/lock.h>
#include <kern/clock.h>
#include <kern/thread_call.h>
@@ -69,7 +69,7 @@
static const int kClassCapacityIncrement = 40;
static const int kKModCapacityIncrement = 10;
-static OSDictionary *sAllClassesDict, *sKModClassesDict;
+static OSDictionary *sAllClassesDict, *sKModClassesDict, *sSortedByClassesDict;
static mutex_t *loadLock;
static struct StalledData {
@@ -286,8 +286,10 @@
do {
OSCollectionIterator *iter;
- if (sAllClassesDict)
+ if (sAllClassesDict) {
sAllClassesDict->removeObject(className);
+ className->release();
+ }
iter = OSCollectionIterator::withCollection(sKModClassesDict);
if (!iter)
@@ -319,7 +321,6 @@
memmove(&sStalled->classes[i], &sStalled->classes[i+1],
(sStalled->count - i) * sizeof(OSMetaClass *));
}
- return;
}
}
@@ -345,7 +346,7 @@
void *OSMetaClass::preModLoad(const char *kmodName)
{
if (!loadLock) {
- loadLock = mutex_alloc(ETAP_IO_AHA);
+ loadLock = mutex_alloc(0);
mutex_lock(loadLock);
}
else
@@ -381,6 +382,7 @@
{
OSReturn result = kOSReturnSuccess;
OSSet *kmodSet = 0;
+ OSSymbol *myname = 0;
if (!sStalled || loadHandle != sStalled) {
logError(kOSMetaClassInternal);
@@ -397,7 +399,8 @@
case kMakingDictionaries:
sKModClassesDict = OSDictionary::withCapacity(kKModCapacityIncrement);
sAllClassesDict = OSDictionary::withCapacity(kClassCapacityIncrement);
- if (!sAllClassesDict || !sKModClassesDict) {
+ sSortedByClassesDict = OSDictionary::withCapacity(kClassCapacityIncrement);
+ if (!sAllClassesDict || !sKModClassesDict || !sSortedByClassesDict) {
result = kOSMetaClassNoDicts;
break;
}
@@ -406,6 +409,7 @@
case kCompletedBootstrap:
{
unsigned int i;
+ myname = OSSymbol::withCStringNoCopy(sStalled->kmodName);
if (!sStalled->count)
break; // Nothing to do so just get out
@@ -429,19 +433,20 @@
break;
}
- if (!sKModClassesDict->setObject(sStalled->kmodName, kmodSet)) {
+ if (!sKModClassesDict->setObject(myname, kmodSet)) {
result = kOSMetaClassNoInsKModSet;
break;
}
// Second pass symbolling strings and inserting classes in dictionary
- for (unsigned int i = 0; i < sStalled->count; i++) {
+ for (i = 0; i < sStalled->count; i++) {
OSMetaClass *me = sStalled->classes[i];
me->className =
OSSymbol::withCStringNoCopy((const char *) me->className);
sAllClassesDict->setObject(me->className, me);
kmodSet->setObject(me);
+ sSortedByClassesDict->setObject((const OSSymbol *)me, myname);
}
sBootstrapState = kCompletedBootstrap;
break;
@@ -454,6 +459,9 @@
if (kmodSet)
kmodSet->release();
+
+ if (myname)
+ myname->release();
if (sStalled) {
ACCUMSIZE(-(sStalled->capacity * sizeof(OSMetaClass *)
@@ -491,7 +499,7 @@
bool result = false;
if (!loadLock) {
- loadLock = mutex_alloc(ETAP_IO_AHA);
+ loadLock = mutex_alloc(0);
mutex_lock(loadLock);
}
else
@@ -550,6 +558,8 @@
iter->release();
}
+
+extern "C" kern_return_t kmod_unload_cache(void);
static void _OSMetaClassConsiderUnloads(thread_call_param_t p0,
thread_call_param_t p1)
@@ -575,7 +585,7 @@
while ( (kmodName = (OSSymbol *) kmods->getNextObject()) ) {
if (ki) {
- kfree(ki, sizeof(kmod_info_t));
+ kfree((vm_offset_t) ki, sizeof(kmod_info_t));
ki = 0;
}
@@ -611,6 +621,8 @@
} while (didUnload);
mutex_unlock(loadLock);
+
+ kmod_unload_cache();
}
void OSMetaClass::considerUnloads()
@@ -767,6 +779,11 @@
return superClassLink;
}
+const OSSymbol *OSMetaClass::getKmodName() const
+{
+ return sSortedByClassesDict->getObject((const OSSymbol *)this);
+}
+
unsigned int OSMetaClass::getInstanceCount() const
{
return instanceCount;
@@ -798,31 +815,50 @@
OSDictionary * OSMetaClass::getClassDictionary()
{
- return sAllClassesDict;
+ panic("OSMetaClass::getClassDictionary(): Obsoleted\n");
+ return 0;
}
bool OSMetaClass::serialize(OSSerialize *s) const
{
- OSDictionary * dict;
- OSNumber * off;
- bool ok = false;
-
- if (s->previouslySerialized(this)) return true;
-
- dict = 0;// IODictionary::withCapacity(2);
- off = OSNumber::withNumber(getInstanceCount(), 32);
-
- if (dict) {
- dict->setObject("InstanceCount", off );
- ok = dict->serialize(s);
- } else if( off)
- ok = off->serialize(s);
-
- if (dict)
- dict->release();
- if (off)
- off->release();
-
- return ok;
-}
-
+ panic("OSMetaClass::serialize(): Obsoleted\n");
+ return false;
+}
+
+void OSMetaClass::serializeClassDictionary(OSDictionary *serializeDictionary)
+{
+ OSDictionary *classDict;
+
+ classDict = OSDictionary::withCapacity(sAllClassesDict->getCount());
+ if (!classDict)
+ return;
+
+ mutex_lock(loadLock);
+ do {
+ OSCollectionIterator *classes;
+ const OSSymbol *className;
+
+ classes = OSCollectionIterator::withCollection(sAllClassesDict);
+ if (!classes)
+ break;
+
+ while ((className = (const OSSymbol *) classes->getNextObject())) {
+ const OSMetaClass *meta;
+ OSNumber *count;
+
+ meta = (OSMetaClass *) sAllClassesDict->getObject(className);
+ count = OSNumber::withNumber(meta->getInstanceCount(), 32);
+ if (count) {
+ classDict->setObject(className, count);
+ count->release();
+ }
+ }
+ classes->release();
+
+ serializeDictionary->setObject("Classes", classDict);
+ } while (0);
+
+ mutex_unlock(loadLock);
+
+ classDict->release();
+}