Quotes About Thread

I'll always stay connected with Apple. I hope that throughout my life I'll sort of have the thread of my life and the thread of Apple weave in and out of each other, like a tapestry. There may be a few years when I'm not there, but I'll always come back.

Now we are longtime outcasts, flying through the emptiness of time in a straight line. Yet somewhere deep down a thin thread still ties us to that far-off misty Paradise, where Adam leans over a well and, unlike Narcissus, never even suspects that the pale yellow blotch appearing in it is he himself. The longing for Paradise is man's longing not to be man.

It is far easier to design a class to be thread-safe than to retrofit it for thread safety later.

Once an object escapes, you have to assume that another class or thread may, maliciously or carelessly, misuse it. This is a compelling reason to use encapsulation: it makes it practical to analyze programs for correctness and harder to violate design constraints accidentally.

Accessing shared, mutable data requires using synchronization; one way to avoid this requirement is to not share. If data is only accessed from a single thread, no synchronization is needed. This technique, thread confinement, is one of the simplest ways to achieve thread safety. When an object is confined to a thread, such usage is automatically thread-safe even if the confined object itself is not.

To ensure thread safety, check-then-act operations (like lazy initialization) and read-modify-write operations (like increment) must always be atomic. We refer collectively to check-then-act and read-modify-write sequences as compound actions: sequences of operations that must be executed atomically in order to remain thread-safe.

Love, as we have already discussed, is a powerful, wonderful, ridiculous thing, capable of moving mountains. And spools of thread.

It had no means of surviving but the thread that bound it to home.

The word 'clue' derives from 'clew', meaning a ball of thread or yarn. It had come to mean 'that which points the way' because of the Greek myth in which Theseus uses a ball of yarn, given to him by Ariadne, to find his way out of the Minotaur's labyrinth.

A single, dancing thread ties the people of the world together in a cohesive fabric. This is our humanness and mortality. We are all born with a similar challenge, borne from the blessing of ownership of this complex physical body.... With this ownership... comes the sometimes immense responsibility of health maintenance.

Yet accessing a volatile variable performs no locking and so cannot cause the executing thread to block, making volatile variables a lighter-weight synchronization mechanism than synchronized.[5]

You can use volatile variables only when all the following criteria are met: Writes to the variable do not depend on its current value, or you can ensure that only a single thread ever updates the value; The variable does not participate in invariants with other state variables; and Locking is not required for any other reason while the variable is being accessed.

A special case of thread confinement applies to volatile variables. It is safe to perform read-modify-write operations on shared volatile variables as long as you ensure that the volatile variable is only written from a single thread. In this case, you are confining the modification to a single thread to prevent race conditions, and the visibility guarantees for volatile variables ensure that other threads see the most up-to-date value. Because

If you are tempted to register an event listener or start a thread from a constructor, you can avoid the improper construction by using a private constructor and a public factory method, as shown in SafeListener in Listing 3.8. Listing

Because of its fragility, ad-hoc thread confinement should be used sparingly; if possible, use one of the stronger forms of thread confinment (stack confinement or ThreadLocal) instead. 3.3.2.

A synchronized block has two parts: a reference to an object that will serve as the lock, and a block of code to be guarded by that lock.

you can think of a ThreadLocal as holding a Map that stores the thread-specific values, though this is not how it is actually implemented. The thread-specific values are stored in the Thread object itself; when the thread terminates, the thread-specific values can be garbage collected. If

I have in my hand the end of the thread which connects me to my ancestral mother way at the back. I pull on the thread and one woman's face in every generation feeling the tug, looks up at me.

The Spinners (Klothes) are imagined in Greek mythology as three old female figures who construct the thread of human destiny—

There is a cult of ignorance in the United States, and there has always been. The strain of anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that my ignorance is just as good as your knowledge.

I have designed my style pantomimes as white ink drawings on black backgrounds, so that man's destiny appears as a thread lost in an endless labyrinth. I have tried to shed some gleams of light on the shadow of man startled by his anguish.

All the principles of heaven and earth are living inside you. Life itself is truth, and this will never change. Everything in heaven and earth breathes. Breath is the thread that ties creation together.

Hearts are connected by the slenderest of threads.

Only fools lay claims where lovers thread for when such love is renewed, lovers dance upon their heads.