cli-nsrunloop.m

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[])
{
   NSRunLoop *runLoop;
   CLIMain *main; // replace with desired class with properties BOOL shouldExist and int exitCode

   @autoreleasepool
   {
      runLoop = [NSRunLoop currentRunLoop];
      main = [[CLIMain alloc] init]; // replace with init method and manually start, if required
      while(
         !main.shouldExit &&
         [runLoop runMode:NSDefaultRunLoopMode beforeDate:[NSDate dateWithTimeIntervalSinceNow:2]]
      );
   }
   return(main.exitCode);
}