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NSThreading


From: Andor Kocsis
Subject: NSThreading
Date: Tue, 13 Nov 2012 13:46:44 -0800 (PST)

Could someone help me plz with this simple program?

--------------------------------------------------------------
#import <Foundation/Foundation.h>

@interface obj1: NSObject { }
-(void) do_it:(id)p1;
@end

@implementation obj1
-(void) do_it:(id)p1 {
  NSAutoreleasePool* pool= [[NSAutoreleasePool alloc] init];
  NSLog(@"obj1#tick");
  [pool drain];}
@end

int main (int argc, const char * argv[]) {
  NSAutoreleasePool* pool= [[NSAutoreleasePool alloc] init];
  obj1* obj= [[obj1 alloc] init];
  [NSThread detachNewThreadSelector:
      NSSelectorFromString(@"do_it")
      toTarget:obj withObject:obj];
  NSLog(@"main#tick");
  [NSThread sleepForTimeInterval:0.5];
  [pool drain];
  return 0;}

-------------------------------------------------------------------------

Program's output:
-------------------------------------------------------------------------
2012-11-13 22:39:20.820 helloworld[2900] autorelease called without pool for obj
ect (0x749c58) of class GSCInlineString in thread <NSThread: 0x749b68>
2012-11-13 22:39:20.789 helloworld[2900] WARNING - unable to create shared user
defaults!
2012-11-13 22:39:20.836 helloworld[2900] main#tick
2012-11-13 22:39:20.836 helloworld[2900] autorelease called without pool for obj
ect (0x749400) of class NSException in thread <NSThread: 0x749b68>
2012-11-13 22:39:20.851 helloworld[2900] autorelease called without pool for obj
ect (0x36bc358) of class GSMutableArray in thread <NSThread: 0x749b68>
helloworld.exe: Uncaught exception NSInvalidArgumentException, reason: -[obj1 do
_it]: unrecognized selector sent to instance 0x748690

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.

-------------------------------------------------------------------------


Using latest SDK on Windows. There isn't any compile time error or warning. How to fix this simple NSThread example to run properly?

Thx,

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