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  • Committer: Bazaar Package Importer
  • Author(s): Eric Heintzmann
  • Date: 2004-04-06 15:21:11 UTC
  • mfrom: (1.1.1 upstream)
  • Revision ID: james.westby@ubuntu.com-20040406152111-95pwmfi50qp1s594
Tags: 1.9.1-2
* debian/rules: Update CC.
* Source/NSUserDefaults: apply patch from CVS.

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Testing/diningPhilosophers.m
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// NSLocks ... umm I mean forks
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id forks[5];
 
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id fork_lock;
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//
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// A class of hungry philosophers
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        // Its a constant battle to feed yourself
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        while (1)
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        {
 
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                [fork_lock lockWhenCondition:FOOD_SERVED];
 
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                // Get the fork to our left
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                [forks[chair] lockWhenCondition:FOOD_SERVED];
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                // Get the fork to our right
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                [forks[(chair + 1) % 5] lockWhenCondition:FOOD_SERVED];
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                [fork_lock unlock];
 
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                // Start eating!
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                printf("Philosopher %d can start eating.\n", chair);
 
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                printf("Philosopher %d can start eating.\n", chair); fflush(stdout);
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                for (i = 0;i < 100000; ++i)
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                {
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                        if ((i % 10000) == 0)
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                                printf("Philosopher %d is eating.\n", chair);
 
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                                printf("Philosopher %d is eating.\n", chair); fflush(stdout);
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                }
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                // Done eating
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                printf("Philosopher %d is done eating.\n", chair);
 
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                printf("Philosopher %d is done eating.\n", chair); fflush(stdout);
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                // Drop the fork to our left
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                [forks[chair] unlock];
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          [forks[i] lock];
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  }
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        fork_lock = [[NSConditionLock alloc]
 
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                initWithCondition:NO_FOOD];
 
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        [fork_lock lock];
 
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  // Create the philosophers
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  for (i = 0;i < 5; ++i)
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          p[i] = [[Philosopher alloc] init];
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                  toTarget:p[i] withObject: [NSNumber numberWithInt: i]];
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  // Now let them all eat
 
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        [fork_lock unlockWithCondition:FOOD_SERVED];
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  for (i = 0;i < 5; ++i)
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          [forks[i] unlockWithCondition:FOOD_SERVED];
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