What is ZMQ context?
public static class ZMQ.Context extends Object implements Closeable. Container for all sockets in a single process, acting as the transport for inproc sockets, which are the fastest way to connect threads in one process.
Is ZeroMQ multithreaded?
ZeroMQ sockets are not threadsafe. Technically it’s possible to migrate a socket from one thread to another but it demands skill. The only place where it’s remotely sane to share sockets between threads are in language bindings that need to do magic like garbage collection on sockets.
What is Zmq communication?
ZeroMQ (also spelled ØMQ, 0MQ or ZMQ) is an asynchronous messaging library, aimed at use in distributed or concurrent applications. It provides a message queue, but unlike message-oriented middleware, a ZeroMQ system can run without a dedicated message broker; the zero in the name is for zero broker.
Does Zmq use TCP?
A socket of type ZMQ_STREAM is used to send and receive TCP data from a non-ØMQ peer, when using the tcp:// transport. A ZMQ_STREAM socket can act as client and/or server, sending and/or receiving TCP data asynchronously.
What is ZMQ communication?
What is Zmq Poller?
In this program, we will create a command server that tells when the worker should exit. Workers subscribes to a topic published by a publisher and prints it. It exits when it receives “Exit” message from the command server.
Is Zmq a TCP or UDP?
To begin, instead of being stream (TCP), or datagram (UDP) oriented, ZeroMQ communication is message-oriented. This means that if a client socket sends a 150kb message, then the server socket will receive a complete, identical message on the other end without having to implement any explicit buffering or framing.
Why is Zmq fast?
ZeroMQ: ZeroMQ is much faster than RabbitMQ because it doesn’t store messages on the disk, so you don’t need to go back and forth to get messages. It stores messages in memory in small buffers.
Is a ØMQ context thread safe?
A ØMQ context is thread safe and may be shared among as many application threads as necessary, without any additional locking required on the part of the caller.
Is MQ thread safe?
A ØMQ contextis thread safe and may be shared among as many application threads as necessary, without any additional locking required on the part of the caller. Individual ØMQ socketsare notthread safe except in the case where full memory barriers are issued when migrating a socket from one thread to another.
What is the difference between ZMQ_send and ZMQ_socket?
zmq_send is given a socket to send on as one of its arguments. The thread that calls zmq_send must be the same thread that created the socket by calling zmq_socket. Thanks for contributing an answer to Stack Overflow!
What is ØMQ lightweight messaging kernel?
The ØMQ lightweight messaging kernel is a library which extends the standard socket interfaces with features traditionally provided by specialised messaging middlewareproducts.