mosquitto/test/msgsps_pub.c
2014-05-07 23:27:00 +01:00

136 lines
2.8 KiB
C

/* This provides a crude manner of testing the performance of a broker in messages/s. */
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include <mosquitto.h>
#include <msgsps_common.h>
static bool run = true;
static int message_count = 0;
static struct timeval start, stop;
void my_connect_callback(struct mosquitto *mosq, void *obj, int rc)
{
printf("rc: %d\n", rc);
gettimeofday(&start, NULL);
}
void my_disconnect_callback(struct mosquitto *mosq, void *obj, int result)
{
run = false;
}
void my_publish_callback(struct mosquitto *mosq, void *obj, int mid)
{
message_count++;
//printf("%d ", message_count);
if(message_count == MESSAGE_COUNT){
gettimeofday(&stop, NULL);
mosquitto_disconnect((struct mosquitto *)obj);
}
}
int create_data(void)
{
int i;
FILE *fptr, *rnd;
int rc = 0;
char buf[MESSAGE_SIZE];
fptr = fopen("msgsps_pub.dat", "rb");
if(fptr){
fseek(fptr, 0, SEEK_END);
if(ftell(fptr) >= MESSAGE_SIZE*MESSAGE_COUNT){
fclose(fptr);
return 0;
}
fclose(fptr);
}
fptr = fopen("msgsps_pub.dat", "wb");
if(!fptr) return 1;
rnd = fopen("/dev/urandom", "rb");
if(!rnd){
fclose(fptr);
return 1;
}
for(i=0; i<MESSAGE_COUNT; i++){
if(fread(buf, sizeof(char), MESSAGE_SIZE, rnd) != MESSAGE_SIZE){
rc = 1;
break;
}
if(fwrite(buf, sizeof(char), MESSAGE_SIZE, fptr) != MESSAGE_SIZE){
rc = 1;
break;
}
}
fclose(rnd);
fclose(fptr);
return rc;
}
int main(int argc, char *argv[])
{
struct mosquitto *mosq;
int i;
double dstart, dstop, diff;
FILE *fptr;
uint8_t *buf;
buf = malloc(MESSAGE_SIZE*MESSAGE_COUNT);
if(!buf){
printf("Error: Out of memory.\n");
return 1;
}
start.tv_sec = 0;
start.tv_usec = 0;
stop.tv_sec = 0;
stop.tv_usec = 0;
if(create_data()){
printf("Error: Unable to create random input data.\n");
return 1;
}
fptr = fopen("msgsps_pub.dat", "rb");
if(!fptr){
printf("Error: Unable to open random input data.\n");
return 1;
}
fread(buf, sizeof(uint8_t), MESSAGE_SIZE*MESSAGE_COUNT, fptr);
fclose(fptr);
mosquitto_lib_init();
mosq = mosquitto_new("perftest", true, NULL);
mosquitto_connect_callback_set(mosq, my_connect_callback);
mosquitto_disconnect_callback_set(mosq, my_disconnect_callback);
mosquitto_publish_callback_set(mosq, my_publish_callback);
mosquitto_connect(mosq, "127.0.0.1", 1884, 600);
i=0;
while(!mosquitto_loop(mosq, 1, 10) && run){
if(i<MESSAGE_COUNT){
mosquitto_publish(mosq, NULL, "perf/test", MESSAGE_SIZE, &buf[i*MESSAGE_SIZE], 0, false);
i++;
}
}
dstart = (double)start.tv_sec*1.0e6 + (double)start.tv_usec;
dstop = (double)stop.tv_sec*1.0e6 + (double)stop.tv_usec;
diff = (dstop-dstart)/1.0e6;
printf("Start: %g\nStop: %g\nDiff: %g\nMessages/s: %g\n", dstart, dstop, diff, (double)MESSAGE_COUNT/diff);
mosquitto_destroy(mosq);
mosquitto_lib_cleanup();
return 0;
}