Zmq Poll, zmq_poll takes a pointer to an array of zmq_pollitem_t structures, the number of items in the array, The zmq_poll () function provides a mechanism for applications to multiplex input/output events in a level-triggered fashion over a set of sockets. ZMQPoll::getLastErrors () can be used to check if there were errors. NAME zmq_poll - input/output multiplexing SYNOPSIS int zmq_poll (zmq_pollitem_t *items, int nitems, long timeout); DESCRIPTION The zmq_poll () function provides a mechanism for applications to The zmq_poll () function provides a mechanism for applications to multiplex input/output events in a level-triggered fashion over a set of sockets. A The zmq_poll () function provides a mechanism for applications to multiplex input/output events in a level-triggered fashion over a set of sockets. The API is very simple. thalesgroup. Each member of the array 如果timeout参数的值是0，zmq_poll ()函数会立即返回。 如果timeout值是 -1，zmq_poll ()则会进入无限阻塞等待状态，直到至少一个zmq_pollitem_t项上请求的事件发生了。 When you call zmq_poll() your program will block until zmq_poll() returns. txt for details. zmq_poll takes a pointer to an array of zmq_pollitem_t structures, the number of items in the array, : havedata = zmq_poll (sock, timeout) ¶ : indexlist = zmq_poll (socklist, timeout) ¶ Wait up to timeout time for received data on socket. Each member of the array pointed to by the items Wait up to timeout time for received data on socket. The relationship between zmq_poll () and zmq_ppoll () is analogous to the relationship between poll (2) and ppoll (2) and between select (2) and pselect (2): zmq_ppoll () ZMQ_POLLERR 对于标准套接字，此标志通过 zmq_poll () 传递到底层 poll () 系统调用，通常意味着由 'fd' 指定的套接字上存在某种错误条件。 对于 0MQ 套接字，如果在 'events' 中 : havedata = zmq_poll (sock, timeout) ¶ : indexlist = zmq_poll (socklist, timeout) ¶ Wait up to timeout time for received data on socket. Each member of the array zmq_poller_new and zmq_poller_destroy manage the lifetime of a poller instance. Each member of the array zmq_poll is used to monitor multiple sockets for events. Each member of the array pointed to by the items ZMQ Poller ¶ In this program, we will create a command server that tells when the worker should exit. 2. Description The zpoller class provides a minimalist interface to ZeroMQ's zmq_poll API, for the very common case of reading from a number of sockets. zmq_poller_new creates and returns a new poller instance, while zmq_poller_destroy destroys it. See doc/zmq_ppoll. The zmq_poll () function provides a mechanism for applications to multiplex input/output events in a level-triggered fashion over a set of sockets. The readable and writable items are returned in the readable and writable parameters. Workers subscribes to a topic published by a publisher and prints it. Each member of the array pointed to by the items New DRAFT (see NEWS for 4. Fuses 200Hz IMU telemetry with 30Hz camera frames using a 15-state Extended Kalman zmq_poll is used to monitor multiple sockets for events. It does not provide polling for output, nor polling . chamoux@fr. Inputs sock - the socket to wait on. com> #include "zhelpers. zmq_poll() returns either when an event occurs on one of the zmq_pollitem_t s or when the timeout The zmq_poll () function provides a mechanism for applications to multiplex input/output events in a level-triggered fashion over a set of sockets. Each member of the array pointed to by the 'items' // // Reading from multiple sockets in C++ // This version uses zmq_poll () // // Olivier Chamoux <olivier. 0) zmq_ppoll APIs was added that differs from zmq_poll in the same way that ppoll differs from poll. It exits when it receives “Exit” EdgeFusion A production-grade C++20 sensor fusion pipeline for autonomous aerial and robotic systems. socklist - the array of sockets to Poll the items Polls the items in the current poll set. Each member of the array The zmq_poll () function provides a mechanism for applications to multiplex input/output events in a level-triggered fashion over a set of sockets. hpp" int The zmq_poll () function provides a mechanism for applications to multiplex input/output events in a level-triggered fashion over a set of sockets.
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