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libzmq/perf/remote_lat.cpp
Luca Boccassi da31917f4f Relicense from LGPL3 + exceptions to Mozilla Public License version 2.0
Relicense permission collected from all relevant authors as tallied at:
https://github.com/rlenferink/libzmq-relicense/blob/master/checklist.md
The relicense grants are collected under RELICENSE/ and will be moved
to the above repository in a later commit.

Fixes https://github.com/zeromq/libzmq/issues/2376
2023-06-05 20:31:47 +01:00

103 lines
2.5 KiB
C++

/* SPDX-License-Identifier: MPL-2.0 */
#include "../include/zmq.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main (int argc, char *argv[])
{
const char *connect_to;
int roundtrip_count;
size_t message_size;
void *ctx;
void *s;
int rc;
int i;
zmq_msg_t msg;
void *watch;
unsigned long elapsed;
double latency;
if (argc != 4) {
printf ("usage: remote_lat <connect-to> <message-size> "
"<roundtrip-count>\n");
return 1;
}
connect_to = argv[1];
message_size = atoi (argv[2]);
roundtrip_count = atoi (argv[3]);
ctx = zmq_init (1);
if (!ctx) {
printf ("error in zmq_init: %s\n", zmq_strerror (errno));
return -1;
}
s = zmq_socket (ctx, ZMQ_REQ);
if (!s) {
printf ("error in zmq_socket: %s\n", zmq_strerror (errno));
return -1;
}
rc = zmq_connect (s, connect_to);
if (rc != 0) {
printf ("error in zmq_connect: %s\n", zmq_strerror (errno));
return -1;
}
rc = zmq_msg_init_size (&msg, message_size);
if (rc != 0) {
printf ("error in zmq_msg_init_size: %s\n", zmq_strerror (errno));
return -1;
}
memset (zmq_msg_data (&msg), 0, message_size);
watch = zmq_stopwatch_start ();
for (i = 0; i != roundtrip_count; i++) {
rc = zmq_sendmsg (s, &msg, 0);
if (rc < 0) {
printf ("error in zmq_sendmsg: %s\n", zmq_strerror (errno));
return -1;
}
rc = zmq_recvmsg (s, &msg, 0);
if (rc < 0) {
printf ("error in zmq_recvmsg: %s\n", zmq_strerror (errno));
return -1;
}
if (zmq_msg_size (&msg) != message_size) {
printf ("message of incorrect size received\n");
return -1;
}
}
elapsed = zmq_stopwatch_stop (watch);
rc = zmq_msg_close (&msg);
if (rc != 0) {
printf ("error in zmq_msg_close: %s\n", zmq_strerror (errno));
return -1;
}
latency = (double) elapsed / (roundtrip_count * 2);
printf ("message size: %d [B]\n", (int) message_size);
printf ("roundtrip count: %d\n", (int) roundtrip_count);
printf ("average latency: %.3f [us]\n", (double) latency);
rc = zmq_close (s);
if (rc != 0) {
printf ("error in zmq_close: %s\n", zmq_strerror (errno));
return -1;
}
rc = zmq_ctx_term (ctx);
if (rc != 0) {
printf ("error in zmq_ctx_term: %s\n", zmq_strerror (errno));
return -1;
}
return 0;
}