pthread_mutex_destroy() does not free the memory used to store the pthread_mutex_t. It's up to you to free() your own memory. Also remember that both pthread_mutex_init() and pthread_mutex_destroy() return zero on success.

"dead list" that contains all stopped threads and then have a special cleanup thread that simply waits for an item to be added to the list. The cleanup thread calls pthread_join() to merge it with itself. Now your entire cleanup will be handled neatly and efficiently in a single thread.

mutexes are used to serialize access to *shared data*. Don't use them for non-shared data, and don't use them if your program's logic ensures that only one thread is accessing a particular data structure at a single time.

if you are using shared data, use mutexes for both reading and writing. Surround your read and write sections with pthread_mutex_lock() and pthread_mutex_unlock(), or use them any time a program's invariant is temporarily broken.

pthread_mutex_lock() accepts a single pointer to a mutex to lock. If the mutex already happens to be locked, the caller will go to sleep. When the function returns, the caller will be woken up (obviously), and the caller will also now hold the lock. This call either returns zero on success.

You should always unlock a mutex that you've locked as soon as safely possible (to increase performance). And you should never unlock a mutex that you don't hold a lock for

When you call pthread_mutex_trylock() you'll attempt to lock the mutex. If the mutex is currently unlocked you'll get the lock, and this function will return zero. However, if the mutex is locked this call won't block. Rather, it will return a non-zero EBUSY error value.

pthread_cond_wait() simultaneously unlock the mutex (so that other threads can modify the linked list) and wait on the condition (so that pthread_cond_wait() will wake up when it is "signalled" by another thread). Now that the mutex is unlocked, other threads can access and modify the linked list, possibly adding items

pthread_cond_wait() call has not yet returned. Unlocking the mutex happens immediately, but waiting on the condition mycond is normally a blocking operation, meaning that our thread will go to sleep, consuming no CPU cycles until it is woken up.

This is exactly what we want to happen. Our thread is sleeping, waiting for a particular condition to become true, without performing any kind of busy polling that would waste CPU time. From our thread's perspective, it's simply waiting for the pthread_cond_wait() call to return.

Immediately after unlocking the mutex, thread 2 calls the function pthread_cond_broadcast(&mycond). By doing so, thread 2 will cause all threads waiting on the mycond condition variable to immediately wake up. This means that our first thread (which is in the middle of a pthread_cond_wait() call) will now wake up.

After thread 2 called pthread_cond_broadcast(&mymutex) you might think that thread 1's pthread_cond_wait() will immediately return. Not so! Instead, pthread_cond_wait() will perform one last operation: relock mymutex. Once pthread_cond_wait() has the lock, it will then return and allow thread 1 to continue execution.

I don't think children themselves have changed that much. It's the world that has changed.

Lets just enjoy what we have now and worry about tomorrow when tomorrow comes.

Sometimes when you're in the storm, it's harder and maybe when it's over, then you can look back on it.

We have a training period; we have certain guidelines and structure. You can't hire talented people and stifle them. That's not the way it works anymore.

Most of the names in my books have secondary meaning. Sometimes they foreshadow; sometimes they tell you about the character's origin or back story.

'Wet Hot American Summer' was sort of lowbrow genius, you know? But smart in its cultish silliness. It wasn't considered something of great cultural caliber. But like many cult pieces, it sort of became something culturally relevant, which I think is what's so wonderful about it.

Trust your landmark and run through the smoke. It's going to open up eventually.

I love the theater as much as music, and the whole idea of getting across to an audience and making them laugh, making them cry - just making them feel - is paramount to me.

The difference between God and Reggie Jackson is that God doesn't think he's Reggie Jackson.

This is my saddest story: In grade school, they would have us open our Valentine's cards and read them out loud. I always sent cards to myself because nobody else did.

The greatest manager has a knack for making ballplayers think they are better than they think they are.

I actually got really good at unicycling.

Everyone assumes we're always going to have a cocktail and a cigarette in hand. Fans expect us all to be dressed up all the time. They always say to me, 'You look so young. You don't seem as tall!'

Me, personally, I was a Mets and Giants fan.

I can accept failure, everyone fails at something. But I cannot accept not trying.

A good chef has to be a manager, a businessman and a great cook. To marry all three together is sometimes difficult.

If life deals you lemons, make lemonade

Our fulfillment is not in our isolated human grandeur but in our intimacy with the larger earth community for this is also the larger dimension of our being.

Don’t let your learning lead to knowledge. Let your learning lead to action.

You buy a Ferrari when you want to be somebody. You buy a Lamborghini when you are somebody.

All national histories are partisan and designed to give us a good conceit of ourselves.

Colors live a remarkable life of their own after they have been applied to the canvas.

My dad taught me everything. It's been fun walking in his footsteps. He played for his whole life and traveled the country and had a great career. He taught me everything about life and playing golf and how to act. Just everything. I learned so much from him and those days hanging around the driving range.

I have found the missing link between the higher ape and civilized man; it is we.