public void Time()
{
Class klass = new Class("NSString");
NSObject str1 = (NSObject) klass.Call("stringWithUTF8String:", Marshal.StringToHGlobalAuto("hello world"));
NSObject str2 = (NSObject) klass.Call("stringWithUTF8String:", Marshal.StringToHGlobalAuto("100"));
NSObject str3 = (NSObject) klass.Call("stringWithUTF8String:", Marshal.StringToHGlobalAuto("foo"));
Stopwatch timer = Stopwatch.StartNew();
for (int i = 0; i < 10000; ++i)
{
str3.Call("hasPrefix:", str1);
}
Console.WriteLine("{0} {1:0.0} secs", new Native(str3, new Selector("hasPrefix:")), timer.ElapsedMilliseconds/1000.0);
timer = Stopwatch.StartNew();
for (int i = 0; i < 10000; ++i)
{
str2.Call("intValue");
}
Console.WriteLine("{0} {1:0.0} secs", new Native(str2, new Selector("intValue")), timer.ElapsedMilliseconds/1000.0);
timer = Stopwatch.StartNew();
for (int i = 0; i < 10000; ++i)
{
str1.Call("uppercaseString");
}
Console.WriteLine("{0} {1:0.0} secs", new Native(str1, new Selector("uppercaseString")), timer.ElapsedMilliseconds/1000.0);
Native native = new Native(str1, new Selector("uppercaseString"));
timer = Stopwatch.StartNew();
for (int i = 0; i < 10000; ++i)
{
native.Invoke();
}
Console.WriteLine("Native {0} {1:0.0} secs", native, timer.ElapsedMilliseconds/1000.0);
string s = "hello world";
timer = Stopwatch.StartNew();
for (int i = 0; i < 10000; ++i)
{
s.ToUpper();
}
Console.WriteLine("Managed ToUpper: {0:0.0} secs", timer.ElapsedMilliseconds/1000.0);
}
internal static object Call(IntPtr instance, string name, object[] args)
{
Contract.Requires(instance != IntPtr.Zero, "instance is zero");
object result;
if (name == "alloc" && args.Length == 0) // need this so we can create an auto release pool without leaking NSMethodSignature
{
IntPtr exception = IntPtr.Zero;
IntPtr ip = DirectCalls.Callp(instance, Selector.Alloc, ref exception);
if (exception != IntPtr.Zero)
CocoaException.Raise(exception);
result = NSObject.Lookup(ip);
}
else
{
Selector selector = new Selector(name);
MethodSignature sig = new MethodSignature(instance, (IntPtr) selector);
Native native = new Native(instance, selector, sig);
native.SetArgs(args);
result = native.Invoke();
}
return result;
}
