Examples with Ctx zmq.Ctx used on opensource projects

Example 81 with Ctx

use of zmq.Ctx in project jeromq by zeromq.

the class InprocLat method main.

public static void main(String[] argv) throws Exception {
    if (argv.length != 2) {
        printf("usage: inproc_lat <message-size> <roundtrip-count>\n");
        return;
    }
    int messageSize = atoi(argv[0]);
    int roundtripCount = atoi(argv[1]);
    Ctx ctx = ZMQ.init(1);
    if (ctx == null) {
        printf("error in init:");
        return;
    }
    SocketBase s = ZMQ.socket(ctx, ZMQ.ZMQ_REQ);
    if (s == null) {
        printf("error in socket: ");
        return;
    }
    boolean rc = ZMQ.bind(s, "inproc://lat_test");
    if (!rc) {
        printf("error in bind: ");
        return;
    }
    Thread localThread = new Thread(new Worker(ctx, roundtripCount));
    localThread.start();
    Msg smsg = ZMQ.msgInitWithSize(messageSize);
    printf("message size: %d [B]\n", (int) messageSize);
    printf("roundtrip count: %d\n", (int) roundtripCount);
    long watch = ZMQ.startStopwatch();
    for (int i = 0; i != roundtripCount; i++) {
        int r = ZMQ.sendMsg(s, smsg, 0);
        if (r < 0) {
            printf("error in sendmsg: %s\n");
            return;
        }
        Msg msg = ZMQ.recvMsg(s, 0);
        if (msg == null) {
            printf("error in recvmsg: %s\n");
            return;
        }
        if (ZMQ.msgSize(msg) != messageSize) {
            printf("message of incorrect size received\n");
            return;
        }
    }
    long elapsed = ZMQ.stopStopwatch(watch);
    double latency = (double) elapsed / (roundtripCount * 2);
    localThread.join();
    printf("average latency: %.3f [us]\n", (double) latency);
    ZMQ.close(s);
    ZMQ.term(ctx);
}