public void RefCount2Test()
{
NSObject pool = new NSObject(NSObject.AllocAndInitInstance("NSAutoreleasePool"));
// No copy, new, or alloc so ref count is one and it's owned by the pool.
PrettyData direct = PrettyData.makeDefault();
Assert.AreEqual(1L, direct.retainCount());
// Alloc so pool has no ownership stake.
NSObject indirect = (NSObject) new Class("PrettyData").Call("alloc").Call("init");
Assert.AreEqual(1L, indirect.retainCount());
// If we send a message to an object its retain count doesn't change.
int value = (int)direct.Call("get33");
Assert.AreEqual(33, value);
Assert.AreEqual(1L, direct.retainCount());
pool.release();
// Verify our counts after we empty the release pool.
Assert.IsTrue(direct.IsDeallocated());
Assert.AreEqual(1L, indirect.retainCount());
}
public void IntArg()
{
NSObject pool = new NSObject(NSObject.AllocAndInitInstance("NSAutoreleasePool"));
long bytes = DoGetMemory();
Class nsString = new Class("NSString");
NSObject str = (NSObject)nsString.Call("stringWithUTF8String:", Marshal.StringToHGlobalAuto("hello world"));
for (int j = 1; j < 100; ++j)
{
for (int i = 0; i < NumIterations / 100; ++i)
{
str.Call("characterAtIndex:", 2);
}
GC.Collect();
}
pool.release();
GC.Collect();
GC.WaitForPendingFinalizers();
long delta = DoGetMemory() - bytes;
if (delta / NumIterations > 4)
{
Assert.Fail("IntArg used {0}K of memory ({1} bytes per iteration)!", delta / 1024, delta / NumIterations);
}
}
public void NilCallTest()
{
NSObject pool = new NSObject(NSObject.AllocAndInitInstance("NSAutoreleasePool"));
NSObject nil = new NSObject(IntPtr.Zero);
// Calling an NSObject method on nil does nothing and returns nil.
NSObject result = (NSObject)nil.Call("hash");
Assert.IsTrue(result.IsNil());
// Calling a unknown method on nil does nothing and returns nil.
result = (NSObject)nil.Call("foo");
Assert.IsTrue(result.IsNil());
// Can chain calls to nil.
result = (NSObject)nil.Call("foo").Call("bar");
Assert.IsTrue(result.IsNil());
// Can use Native with null.
result = (NSObject)nil.Call("foo");
Assert.IsTrue(result.IsNil());
pool.release();
}
public void Released()
{
NSObject pool = new NSObject(NSObject.AllocAndInitInstance("NSAutoreleasePool"));
long bytes = DoGetMemory();
for (int j = 1; j < 100; ++j)
{
for (int i = 0; i < NumIterations / 100; ++i)
{
Class klass = new Class("NSNumber");
klass.release();
}
GC.Collect();
}
pool.release();
GC.Collect();
GC.WaitForPendingFinalizers();
long delta = DoGetMemory() - bytes;
if (delta / NumIterations > 4)
{
Assert.Fail("Released used {0}K of memory ({1} bytes per iteration)!", delta / 1024, delta / NumIterations);
}
}
public void Managed()
{
NSObject pool = new NSObject(NSObject.AllocAndInitInstance("NSAutoreleasePool"));
long bytes = DoGetMemory();
for (int j = 1; j < 100; ++j)
{
for (int i = 0; i < NumIterations / 100; ++i)
{
NSObject instance = (NSObject) new Class("Subclass1").Call("alloc").Call("init");
instance.Call("TakeString", "what");
instance.release();
}
GC.Collect();
}
pool.release();
GC.Collect();
GC.WaitForPendingFinalizers();
long delta = DoGetMemory() - bytes;
if (delta / NumIterations > 4)
{
Assert.Fail("Managed used {0}K of memory ({1} bytes per iteration)!", delta / 1024, delta / NumIterations);
}
}
public void Formatted()
{
NSObject pool = new NSObject(NSObject.AllocAndInitInstance("NSAutoreleasePool"));
long bytes = DoGetMemory();
for (int j = 1; j < 100; ++j)
{
for (int i = 0; i < NumIterations / 100; ++i)
{
NSObject s = (NSObject)Native.Call("[[NSNumber alloc] initWithInteger:{0}]", 33);
s.release();
}
GC.Collect();
}
pool.release();
GC.Collect();
GC.WaitForPendingFinalizers();
long delta = DoGetMemory() - bytes;
if (delta / NumIterations > 4)
{
Assert.Fail("Formatted used {0}K of memory ({1} bytes per iteration)!", delta / 1024, delta / NumIterations);
}
}
public void ArrayArg()
{
NSObject pool = new NSObject(NSObject.AllocAndInitInstance("NSAutoreleasePool"));
Class nsData = new Class("NSData");
long bytes = DoGetMemory();
for (int j = 1; j < 100; ++j)
{
for (int i = 0; i < NumIterations / 100; ++i)
{
byte[] data = new byte[] { 2, 5, 6, 3 };
NSObject d = new NSObject(nsData.Call("alloc"));
NSObject e = (NSObject)d.Call("initWithBytes:length:", data, data.Length);
e.release();
}
GC.Collect();
}
pool.release();
GC.Collect();
GC.WaitForPendingFinalizers();
long delta = DoGetMemory() - bytes;
if (delta / NumIterations > 4)
{
Assert.Fail("ArrayArg used {0}K of memory ({1} bytes per iteration)!", delta / 1024, delta / NumIterations);
}
}
// Action methods to add/remove boxes, giving us something to animate. Note that we
// cause a relayout here; a better design is to relayout in the view automatically on
// addition/removal of subviews.
public void addABox(NSObject sender)
{
NSObject box = DoNewBox();
AddSubView(box);
box.release();
DoLayout();
}
public void ThreadedTest()
{
NSObject pool = new NSObject(NSObject.AllocAndInitInstance("NSAutoreleasePool"));
sbyte threaded = (sbyte)new Class("NSThread").Call("isMultiThreaded");
Assert.AreEqual(1, threaded);
pool.release();
}
public void DeallocTest2()
{
NSObject pool = new NSObject(NSObject.AllocAndInitInstance("NSAutoreleasePool"));
MyDerived instance = (MyDerived) new Class("MyDerived").Call("alloc").Call("init");
Assert.AreEqual(1L, instance.retainCount());
instance.release();
Assert.IsTrue(instance.Dead);
pool.release();
}
public void ChainedCallTest()
{
NSObject pool = new NSObject(NSObject.AllocAndInitInstance("NSAutoreleasePool"));
Class nsString = new Class("NSMutableString");
NSObject str = (NSObject)nsString.Call("alloc").Call("initWithUTF8String:", Marshal.StringToHGlobalAuto("chained!"));
string result = Marshal.PtrToStringAuto((IntPtr)str.Call("UTF8String"));
Assert.AreEqual("chained!", result);
pool.release();
}
public void SuperTest()
{
NSObject pool = new NSObject(NSObject.AllocAndInitInstance("NSAutoreleasePool"));
Media instance = (Media) new Class("Media").Call("alloc").Call("init");
int value = instance.value();
Assert.AreEqual(3, value);
value = instance.Call("value").To <int>();
Assert.AreEqual(3, value);
pool.release();
}
public void RefCount3Test()
{
NSObject pool = new NSObject(NSObject.AllocAndInitInstance("NSAutoreleasePool"));
Class klass = new Class("NSHashTable");
NSObject instance1 = (NSObject)klass.Call("alloc").Call("init");
Assert.AreEqual(1L, instance1.retainCount());
NSObject instance2 = (NSObject) new Class("NSHashTable").Call("alloc").Call("init");
Assert.AreEqual(1L, instance2.retainCount());
pool.release();
Assert.AreEqual(1L, instance1.retainCount());
Assert.AreEqual(1L, instance2.retainCount());
}
public void RefCount1Test()
{
NSObject pool = new NSObject(NSObject.AllocAndInitInstance("NSAutoreleasePool"));
// If we use alloc the object will have a ref count of one.
NSObject instance = (NSObject) new Class("NSHashTable").Call("alloc").Call("init");
Assert.AreEqual(1L, instance.retainCount());
// Classes always have a very high retain count (because they
// are not supposed to go away).
Class nsSignature = new Class("NSMethodSignature");
Assert.IsTrue(nsSignature.retainCount() > 1000);
// If alloc, new, or copy aren't used then the pool owns the object.
Class nsString = new Class("NSString");
NSObject str = (NSObject)nsString.Call("stringWithUTF8String:", Marshal.StringToHGlobalAuto("hello"));
Assert.AreEqual(1L, str.retainCount());
// We can have two managed instances on the same native instance
// and the ref count doesn't change.
NSObject copy = new NSObject((IntPtr)instance);
Assert.AreEqual(1L, copy.retainCount());
// If we send a message to an object its retain count doesn't change.
instance.Call("description");
Assert.AreEqual(1L, instance.retainCount());
pool.release();
// Verify our counts after we empty the release pool.
Assert.AreEqual(1L, instance.retainCount());
Assert.AreEqual(1L, copy.retainCount());
}
private void DoMemoryThread(object arg)
{
NSObject view = (NSObject)arg;
TimeSpan interval = TimeSpan.FromSeconds(5);
Random rand = new Random(1);
NSObject pool = (NSObject) new Class("NSAutoreleasePool").Call("alloc").Call("init");
lock (m_lock)
{
int count = 0; // note that this isn't the count of boxes: it's the count of boxes added by this thread
while (m_checkingMemory)
{
bool signaled = Monitor.Wait(m_lock, interval);
if (!signaled)
{
Selector selector;
if ((rand.Next(2) == 0 || count == 0) && count < 12)
{
selector = new Selector("addABox:");
++count;
}
else
{
selector = new Selector("removeLastBox:");
--count;
}
view.Call("performSelectorOnMainThread:withObject:waitUntilDone:", selector, null, false);
}
}
}
pool.release();
}
internal static void Main(string[] args)
{
try
{
Registrar.CanInit = true;
// Make our app a foreground app (this is redundant if we were started via the
// Finder or the open command, but important if we were started by directly
// executing the launcher script).
var psn = new ProcessSerialNumber();
psn.highLongOfPSN = 0;
psn.lowLongOfPSN = kCurrentProcess;
int err = TransformProcessType(ref psn, kProcessTransformToForegroundApplication);
if (err != 0)
{
throw new InvalidOperationException("TransformProcessType returned " + err + ".");
}
err = SetFrontProcess(ref psn);
if (err != 0)
{
throw new InvalidOperationException("SetFrontProcess returned " + err + ".");
}
// Load the nib and run the main event loop.
NSObject pool = new NSObject(NSObject.AllocAndInitInstance("NSAutoreleasePool"));
App app = new App("MainMenu.nib");
pool.release();
app.Run();
}
catch (Exception e)
{
Console.WriteLine(e);
}
}