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.

"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_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.

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.

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.

Rhetoric, which is the use of language to inform or persuade, is very important in shaping public opinion. We are very easily fooled by language and how it is used by others.

I've come to accept who my readers turn out to be, rather than having some sort of demographic target.

Food is everything we are. It's an extension of nationalist feeling, ethnic feeling, your personal history, your province, your region, your tribe, your grandma. It's inseparable from those from the get-go.

I grew up watching movies and television, and one day when I was really young I told my mom I wanted to become an actor, and she was really supportive and got me involved in local theater and commercials. From there I moved up to auditioning for movies and television.

I didn't know when I was growing up that this was a very special program, that this wasn't going on in other parts of the country. Now I realize that I was lucky.

Keeping it all together as a modern woman means multitasking, especially when you work. I think you always need to try your best, but at the same time you can only do what you can do, and you don't need to beat yourself up about it. I'm not white-picket-fence perfect.

I also want to get out there in the world and do some acting and fashion and modeling.

Successful people do what unsuccessful people are not willing to do. Don't wish it were easier; wish you were better.

The way to health is to have an aromatic bath and a scented massage every day.

A logical analysis of reflexive usages in French shows, however, that this simplicity is an illusion and that, so far from helping the foreigner, it is more calculated to bother him.

I, for one, love kids in my romance novels. When done right, kids add so much conflict. Not just of the 'interruption on the way to the bedroom' variety. But conflict about commitment and insecurity.

Big dreams need big efforts.

I'm very interested in language because it reflects our obsessions and ways of conceptualising the world.

It's one of the fundamental principles of the stock market: When interest rates go up, stocks go down. And along with financial companies and cyclicals, technology companies - with their sky-high price-to-earnings multiples - should be among the biggest losers in an environment of rising rates.

I can't see where there is anywhere left to move. If you don't have a recount it's hard to receive any more votes.

The blues was like that problem child that you may have had in the family. You was a little bit ashamed to let anybody see him, but you loved him. You just didn't know how other people would take it.

Most people don't want to change. They're comfortable and set in their ways. But in order to change, you have to be able to agitate people at times. And I think that's something that's very necessary for us to improve as a country.

Let the angry word be answered only with a kiss.

When you move like a jellyfish, rhythm is nothing. You go with the flow. You don't stop.

Jazz has always been a melting pot of influences and I plan to incorporate them all.

I love the Beatles.

Little pitchers have big ears

There's nobody in the world like me. I think every decade has an iconic blonde, like Marilyn Monroe or Princess Diana and, right now, I'm that icon.

I have an over-attachment to precision, which is why I've sold more magazines than any man alive.