47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
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#include <stdlib.h>
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#include <assert.h>
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#include <signal.h>
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#include <zmq.h>
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#include "processvalue.pb-c.h"
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#define BUFSIZE 1024
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int running = 1;
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static void stopHandler(int sign) {
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printf("received ctrl-c\n");
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running = 0;
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}
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int main(int argc, char** argv) {
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signal(SIGINT, stopHandler); /* catches ctrl-c */
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/* prepare zmq context, connect to server and subscribe with empty filter */
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void *zmqContext = zmq_ctx_new();
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void *zmqSubscriber = zmq_socket(zmqContext, ZMQ_SUB);
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int rc = zmq_connect(zmqSubscriber, "tcp://127.0.0.1:12346");
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assert(rc == 0);
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rc = zmq_setsockopt(zmqSubscriber, ZMQ_SUBSCRIBE, 0, 0);
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assert(rc == 0);
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while (running) {
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char buf[BUFSIZE];
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int rcLen = zmq_recv(zmqSubscriber, buf, BUFSIZE, 0);
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assert(rcLen != -1);
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Krohne__ProcessValue *processValue = krohne__process_value__unpack(NULL, rcLen, buf);
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assert(processValue != NULL);
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printf("value: %d\n", processValue->value);
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printf("unit: %i\n", processValue->unit);
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printf("status: %i\n", processValue->status);
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krohne__process_value__free_unpacked(processValue, NULL);
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}
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printf("Terminating ...\n");
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zmq_close(zmqSubscriber);
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zmq_ctx_destroy(zmqContext);
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}
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