#import <Foundation/Foundation.h>

/* compile with
gcc -g -Wall -framework Foundation -o autounbox autounbox.m
*/


@interface Receiver : NSObject

- (void) printGroovyness: (int)groovy;

@end // Receiver

@implementation Receiver

- (void) printGroovyness: (int)groovy {
    NSLog (@"Groovy received: %x", groovy);
} // printGroovyness

@end // Receiver


@interface Sender : NSObject
@end // Sender

@implementation Sender

- (void) boxingDay: (Receiver *)receiver {
    [[NSAutoreleasePool alloc] init];

    int value = random() % 300;
    NSNumber *number = [NSNumber numberWithInt: value];
    
    NSLog(@"main-threading groovy of %d with pointer %p", value, number);
    
    [receiver performSelectorOnMainThread: @selector(printGroovyness:)
              withObject: number
              waitUntilDone: NO];

    sleep(10);

} // boxingDay

@end // Sender



int main (int argc, const char *argv[]) {
    [[NSAutoreleasePool alloc] init];

    Sender *sender = [[Sender alloc] init];
    Receiver *receiver = [[Receiver alloc] init];

    [NSThread detachNewThreadSelector: @selector(boxingDay:)
              toTarget: sender
              withObject: receiver];

    // Give the runloop marklar a chance to catch its breath
    sleep (1);
    [[NSRunLoop mainRunLoop] run];

    return (0);

} // main