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  2. Producer–consumer problem - Wikipedia

    en.wikipedia.org/wiki/Producerconsumer_problem

    In computing, the producer-consumer problem (also known as the bounded-buffer problem) is a family of problems described by Edsger W. Dijkstra since 1965.. Dijkstra found the solution for the producer-consumer problem as he worked as a consultant for the Electrologica X1 and X8 computers: "The first use of producer-consumer was partly software, partly hardware: The component taking care of the ...

  3. Circular buffer - Wikipedia

    en.wikipedia.org/wiki/Circular_buffer

    In some situations, overwriting circular buffer can be used, e.g. in multimedia. If the buffer is used as the bounded buffer in the producerconsumer problem then it is probably desired for the producer (e.g., an audio generator) to overwrite old data if the consumer (e.g., the sound card) is unable to momentarily

  4. Monitor (synchronization) - Wikipedia

    en.wikipedia.org/wiki/Monitor_(synchronization)

    A classic concurrency problem is that of the bounded producer/consumer, in which there is a queue or ring buffer of tasks with a maximum size, with one or more threads being "producer" threads that add tasks to the queue, and one or more other threads being "consumer" threads that take tasks out of the queue. The queue is assumed to be non ...

  5. Semaphore (programming) - Wikipedia

    en.wikipedia.org/wiki/Semaphore_(programming)

    In the producerconsumer problem, one process (the producer) generates data items and another process (the consumer) receives and uses them. They communicate using a queue of maximum size N and are subject to the following conditions: the consumer must wait for the producer to produce something if the queue is empty;

  6. Observer pattern - Wikipedia

    en.wikipedia.org/wiki/Observer_pattern

    The observer pattern addresses the following problems: [2] A one-to-many dependency between objects should be defined without making the objects tightly coupled. When one object changes state, an open-ended number of dependent objects should be updated automatically. An object can notify multiple other objects.

  7. Gang scheduling - Wikipedia

    en.wikipedia.org/wiki/Gang_scheduling

    Each member of the group will be assigned a controller and when a job of size n arrives, it is assigned to a controller of size 2 [lg 2] (the smallest power to 2 that is larger than or equal to n). The controller is assigned by first sorting all the used slots, and then identifying groups of 2 [lg 2] contiguous free processors. If a controller ...

  8. Java concurrency - Wikipedia

    en.wikipedia.org/wiki/Java_concurrency

    Since JDK 1.2, Java has included a standard set of collection classes, the Java collections framework. Doug Lea, who also participated in the Java collections framework implementation, developed a concurrency package, comprising several concurrency primitives and a large battery of collection-related classes. [19]

  9. Bridge pattern - Wikipedia

    en.wikipedia.org/wiki/Bridge_pattern

    The bridge pattern is often confused with the adapter pattern, and is often implemented using the object adapter pattern; e.g., in the Java code below. Variant: The implementation can be decoupled even more by deferring the presence of the implementation to the point where the abstraction is utilized.