message-queue

问题 im currently using the timed_receive() method from the boost::interprocess library for receiving data. Since the timing of the received messages will vary I used this method over the receive() method. msgque->timed_receive((void*) &message,sizeof(int),recvd_size,priority, boost::posix_time::ptime(microsec_clock::universal_time()) + boost::posix_time::milliseconds(300)) Question: How does this method know a message is present in the buffer? Is it a polling mechanism or is there a more complex

问题 I'm working on IPC in NodeJS and want to be able to send a message to the parent process from the child and "wait" for the result. My idea was to keep track of all the send messages in a map that maps the unique message ID to a promise. Once the process.on('message`) has been called I lookup the promise by the ID I got back from the parent and want to resolve or reject the promise. I came up with this, but am stuck at the resolve/reject part: 'use strict' import RequestMessage from "..

问题 I'm working on IPC in NodeJS and want to be able to send a message to the parent process from the child and "wait" for the result. My idea was to keep track of all the send messages in a map that maps the unique message ID to a promise. Once the process.on('message`) has been called I lookup the promise by the ID I got back from the parent and want to resolve or reject the promise. I came up with this, but am stuck at the resolve/reject part: 'use strict' import RequestMessage from "..

问题 I want to handle unsuccessful messages the consumer gets from the queue and re-queue them. Imagine I have a situation like this: P => | foo | bar | baz | => C Where foo, bar and baz are messages. If consumer reads baz but something goes wrong i can either use the basic.reject or the basic.nack ( https://www.rabbitmq.com/nack.html ). Using one of these two commands, I will pass the argument to requeue the message. The problem is the message is requeued in the same position it was before, so

问题 I have spring boot rabbitmq application where i have to send an Employee object to queue. Then i have set up a listener application. Do some processing on employee object and put this object in call back queue. For this, i have created below objects in my appication. Created ConnectionFactory . Created RabbitAdmin object using ConnectionFactory .. Request Queue. Callback Queue. Direct Exchange. Request Queue Binding. Callback Queue Binding. MessageConverter. RabbitTemplate object. And finally

问题 I have spring boot rabbitmq application where i have to send an Employee object to queue. Then i have set up a listener application. Do some processing on employee object and put this object in call back queue. For this, i have created below objects in my appication. Created ConnectionFactory . Created RabbitAdmin object using ConnectionFactory .. Request Queue. Callback Queue. Direct Exchange. Request Queue Binding. Callback Queue Binding. MessageConverter. RabbitTemplate object. And finally

来源： https://stackoverflow.com/questions/55318645/using-queues-in-lparallel-library-common-lisp

来源： https://stackoverflow.com/questions/10922216/locking-messages-in-queue-with-windows-azure-queues

来源： https://stackoverflow.com/questions/63484183/can-my-selenium-framework-consume-an-incoming-message

来源： https://stackoverflow.com/questions/63484183/can-my-selenium-framework-consume-an-incoming-message