livelock | 易学教程

Circular Buffer with Threads Consumer and Producer: it get stucks some executions

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问题 I'm developing a circular buffer with two Threads: Consumer and Producer. I'm using active waiting with Thread.yield . I know that it is possible to do that with semaphores, but I wanted the buffer without semaphores. Both have a shared variable: bufferCircular . While the buffer is not full of useful information, producer write data in the position p of array, and while there are some useful information consumer read data in the position c of array. The variable nElem from BufferCircular is

What's the difference between deadlock and livelock?

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问题 Can somebody please explain with examples (of code) what is the difference between deadlock and livelock ? 回答1: Taken from http://en.wikipedia.org/wiki/Deadlock: In concurrent computing, a deadlock is a state in which each member of a group of actions, is waiting for some other member to release a lock A livelock is similar to a deadlock, except that the states of the processes involved in the livelock constantly change with regard to one another, none progressing. Livelock is a special case

What's the difference between deadlock and livelock?

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Can somebody please explain with examples (of code) what is the difference between deadlock and livelock ? mah Taken from http://en.wikipedia.org/wiki/Deadlock : In concurrent computing, a deadlock is a state in which each member of a group of actions, is waiting for some other member to release a lock A livelock is similar to a deadlock, except that the states of the processes involved in the livelock constantly change with regard to one another, none progressing. Livelock is a special case of resource starvation; the general definition only states that a specific process is not progressing.

Good example of livelock?

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问题 I understand what livelock is, but I was wondering if anyone had a good code-based example of it? And by code-based, I do not mean "two people trying to get past each other in a corridor". If I read that again, I'll lose my lunch. 回答1: Here's a very simple Java example of livelock where a husband and wife are trying to eat soup, but only have one spoon between them. Each spouse is too polite, and will pass the spoon if the other has not yet eaten. public class Livelock { static class Spoon {