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// Copyright 2007 - 2021, Alan Antonuk and the rabbitmq-c contributors.
// SPDX-License-Identifier: mit
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <rabbitmq-c/amqp.h>
#include <rabbitmq-c/tcp_socket.h>
#include "utils.h"
#define SUMMARY_EVERY_US 1000000
static void send_batch(amqp_connection_state_t conn, char const *queue_name,
int rate_limit, int message_count) {
uint64_t start_time = now_microseconds();
int i;
int sent = 0;
int previous_sent = 0;
uint64_t previous_report_time = start_time;
uint64_t next_summary_time = start_time + SUMMARY_EVERY_US;
char message[256];
amqp_bytes_t message_bytes;
for (i = 0; i < (int)sizeof(message); i++) {
message[i] = i & 0xff;
}
message_bytes.len = sizeof(message);
message_bytes.bytes = message;
for (i = 0; i < message_count; i++) {
uint64_t now = now_microseconds();
die_on_error(amqp_basic_publish(conn, 1, amqp_cstring_bytes("amq.direct"),
amqp_cstring_bytes(queue_name), 0, 0, NULL,
message_bytes),
"Publishing");
sent++;
if (now > next_summary_time) {
int countOverInterval = sent - previous_sent;
double intervalRate =
countOverInterval / ((now - previous_report_time) / 1000000.0);
printf("%d ms: Sent %d - %d since last report (%d Hz)\n",
(int)(now - start_time) / 1000, sent, countOverInterval,
(int)intervalRate);
previous_sent = sent;
previous_report_time = now;
next_summary_time += SUMMARY_EVERY_US;
}
while (((i * 1000000.0) / (now - start_time)) > rate_limit) {
microsleep(2000);
now = now_microseconds();
}
}
{
uint64_t stop_time = now_microseconds();
int total_delta = (int)(stop_time - start_time);
printf("PRODUCER - Message count: %d\n", message_count);
printf("Total time, milliseconds: %d\n", total_delta / 1000);
printf("Overall messages-per-second: %g\n",
(message_count / (total_delta / 1000000.0)));
}
}
int main(int argc, char const *const *argv) {
char const *hostname;
int port, status;
int rate_limit;
int message_count;
amqp_socket_t *socket = NULL;
amqp_connection_state_t conn;
if (argc < 5) {
fprintf(stderr,
"Usage: amqp_producer host port rate_limit message_count\n");
return 1;
}
hostname = argv[1];
port = atoi(argv[2]);
rate_limit = atoi(argv[3]);
message_count = atoi(argv[4]);
conn = amqp_new_connection();
socket = amqp_tcp_socket_new(conn);
if (!socket) {
die("creating TCP socket");
}
status = amqp_socket_open(socket, hostname, port);
if (status) {
die("opening TCP socket");
}
die_on_amqp_error(amqp_login(conn, "/", 0, 131072, 0, AMQP_SASL_METHOD_PLAIN,
"guest", "guest"),
"Logging in");
amqp_channel_open(conn, 1);
die_on_amqp_error(amqp_get_rpc_reply(conn), "Opening channel");
send_batch(conn, "test queue", rate_limit, message_count);
die_on_amqp_error(amqp_channel_close(conn, 1, AMQP_REPLY_SUCCESS),
"Closing channel");
die_on_amqp_error(amqp_connection_close(conn, AMQP_REPLY_SUCCESS),
"Closing connection");
die_on_error(amqp_destroy_connection(conn), "Ending connection");
return 0;
}
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