然后,我将消息数据复制到这个结构体中,并使用 zmq_msg_send() 函数来发送它。在发送完消息后,我使用 zmq_msg_close() 函数来释放与消息相关的资源。 面试官:在使用 ZeroMQ 的 C 语言 API 时,你如何处理异常和错误? 答案示例:在调用 ZeroMQ 函数时,我会检查返回值来确定是否出现了错误。例如,大多数 Zero...
zmq_msg_init(&request); zmq_msg_recv(&request, respond,0); printf("Received: hello\n"); zmq_msg_close(&request); sleep(1);//sleep one secondzmq_msg_t reply; zmq_msg_init_size(&reply, strlen("world")); memcpy(zmq_msg_data(&reply),"world",5); zmq_msg_send(&reply, respond,...
printf("ERROR: ZeroMQ error occurred during zmq_msg_send(): %s\n", zmq_strerror(errno)); zmq_msg_close(&envelope); break; } 使用数据之前要先解除封装: zmq_msg_close(&envelope); printf("Message sent; i: %u, topic: %s\n", i, TOPIC); 清理 C 语言不提供垃圾收集功能,用完之后记得要...
memcpy((void*)((char*)zmq_msg_data(&envelope)+1+topic_size),buffer,PACKET_SIZE*sizeof(int16_t)) 1. 2. 3. 通过data_socket发送消息: 复制 constsize_trs=zmq_msg_send(&envelope,data_socket,0); if(rs!=envelope_size) { printf("ERROR: ZeroMQ error occurred during zmq_msg_send(): %s...
zmq_msg_init_size (&reply,5);memcpy(zmq_msg_data (&reply),"World",5); zmq_send (responder, &reply,0); zmq_msg_close (&reply); }// 程序不会运行到这里,以下只是演示我们应该如何结束zmq_close (responder); zmq_term (context);return0; ...
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The zframe class provides methods to send and receive single message frames across ØMQ sockets. A 'frame' corresponds to one zmq_msg_t. When you read a frame from a socket, the zframe_more() method indicates if the frame is part of an unfinished multipart message. The zframe_send metho...
* Fixed #2488 - improve zmq_msg_send doc return value documentation. * Fixed #3268 - HWM in ZMQ_DGRAM socket does not respect multipart message. * Fixed #3284 - added support for ZMQ_MULTICAST_HOPS with UDP sockets. * Fixed #3245 - use-after-free reported in zmq::pipe_t::termin...
0MQ或ZMQ)，号称号称是“史上最快的消息队列”，基于c语言开发。ZMQ(以下ZeroMQ简称ZMQ)是一个简单...
@mycat:网上查到一个有趣的对比:zeromq 我在 mac lion 上试验一把,官方的案例 hwclient.c/hwserver.c 把发的包改成:包长度+包内容(就是 Muti-part Message 方式),用 zmq_send/zmq_recv 和 zmq_msg_send/zmq_msg_recv,带ZMQ_SNDMORE/ZMQ_REVMORE 都有问题,把 ZMQ_REVMORE 去掉就 OK,zeromq 还有...