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-rw-r--r--tests/bandwidth-client.c220
1 files changed, 0 insertions, 220 deletions
diff --git a/tests/bandwidth-client.c b/tests/bandwidth-client.c
deleted file mode 100644
index e9109e1..0000000
--- a/tests/bandwidth-client.c
+++ /dev/null
@@ -1,220 +0,0 @@
-/*
- * Copyright © 2008-2010 Stéphane Raimbault <stephane.raimbault@gmail.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h>
-#include <stdlib.h>
-#include <time.h>
-#include <sys/time.h>
-#include <errno.h>
-
-#include <modbus.h>
-
-#define G_MSEC_PER_SEC 1000
-
-uint32_t gettime_ms(void)
-{
- struct timeval tv;
- gettimeofday (&tv, NULL);
-
- return (uint32_t) tv.tv_sec * 1000 + tv.tv_usec / 1000;
-}
-
-enum {
- TCP,
- RTU
-};
-
-/* Tests based on PI-MBUS-300 documentation */
-int main(int argc, char *argv[])
-{
- uint8_t *tab_bit;
- uint16_t *tab_reg;
- modbus_t *ctx;
- int i;
- int nb_points;
- double elapsed;
- uint32_t start;
- uint32_t end;
- uint32_t bytes;
- uint32_t rate;
- int rc;
- int n_loop;
- int use_backend;
-
- if (argc > 1) {
- if (strcmp(argv[1], "tcp") == 0) {
- use_backend = TCP;
- n_loop = 100000;
- } else if (strcmp(argv[1], "rtu") == 0) {
- use_backend = RTU;
- n_loop = 100;
- } else {
- printf("Usage:\n %s [tcp|rtu] - Modbus client to measure data bandwith\n\n", argv[0]);
- exit(1);
- }
- } else {
- /* By default */
- use_backend = TCP;
- n_loop = 100000;
- }
-
- if (use_backend == TCP) {
- ctx = modbus_new_tcp("127.0.0.1", 1502);
- } else {
- ctx = modbus_new_rtu("/dev/ttyUSB1", 115200, 'N', 8, 1);
- modbus_set_slave(ctx, 1);
- }
- if (modbus_connect(ctx) == -1) {
- fprintf(stderr, "Connexion failed: %s\n",
- modbus_strerror(errno));
- modbus_free(ctx);
- return -1;
- }
-
- /* Allocate and initialize the memory to store the status */
- tab_bit = (uint8_t *) malloc(MODBUS_MAX_READ_BITS * sizeof(uint8_t));
- memset(tab_bit, 0, MODBUS_MAX_READ_BITS * sizeof(uint8_t));
-
- /* Allocate and initialize the memory to store the registers */
- tab_reg = (uint16_t *) malloc(MODBUS_MAX_READ_REGISTERS * sizeof(uint16_t));
- memset(tab_reg, 0, MODBUS_MAX_READ_REGISTERS * sizeof(uint16_t));
-
- printf("READ BITS\n\n");
-
- nb_points = MODBUS_MAX_READ_BITS;
- start = gettime_ms();
- for (i=0; i<n_loop; i++) {
- rc = modbus_read_bits(ctx, 0, nb_points, tab_bit);
- if (rc == -1) {
- fprintf(stderr, "%s\n", modbus_strerror(errno));
- return -1;
- }
- }
- end = gettime_ms();
- elapsed = end - start;
-
- rate = (n_loop * nb_points) * G_MSEC_PER_SEC / (end - start);
- printf("Transfert rate in points/seconds:\n");
- printf("* %d points/s\n", rate);
- printf("\n");
-
- bytes = n_loop * (nb_points / 8) + ((nb_points % 8) ? 1 : 0);
- rate = bytes / 1024 * G_MSEC_PER_SEC / (end - start);
- printf("Values:\n");
- printf("* %d x %d values\n", n_loop, nb_points);
- printf("* %.3f ms for %d bytes\n", elapsed, bytes);
- printf("* %d KiB/s\n", rate);
- printf("\n");
-
- /* TCP: Query and reponse header and values */
- bytes = 12 + 9 + (nb_points / 8) + ((nb_points % 8) ? 1 : 0);
- printf("Values and TCP Modbus overhead:\n");
- printf("* %d x %d bytes\n", n_loop, bytes);
- bytes = n_loop * bytes;
- rate = bytes / 1024 * G_MSEC_PER_SEC / (end - start);
- printf("* %.3f ms for %d bytes\n", elapsed, bytes);
- printf("* %d KiB/s\n", rate);
- printf("\n\n");
-
- printf("READ REGISTERS\n\n");
-
- nb_points = MODBUS_MAX_READ_REGISTERS;
- start = gettime_ms();
- for (i=0; i<n_loop; i++) {
- rc = modbus_read_registers(ctx, 0, nb_points, tab_reg);
- if (rc == -1) {
- fprintf(stderr, "%s\n", modbus_strerror(errno));
- return -1;
- }
- }
- end = gettime_ms();
- elapsed = end - start;
-
- rate = (n_loop * nb_points) * G_MSEC_PER_SEC / (end - start);
- printf("Transfert rate in points/seconds:\n");
- printf("* %d registers/s\n", rate);
- printf("\n");
-
- bytes = n_loop * nb_points * sizeof(uint16_t);
- rate = bytes / 1024 * G_MSEC_PER_SEC / (end - start);
- printf("Values:\n");
- printf("* %d x %d values\n", n_loop, nb_points);
- printf("* %.3f ms for %d bytes\n", elapsed, bytes);
- printf("* %d KiB/s\n", rate);
- printf("\n");
-
- /* TCP:Query and reponse header and values */
- bytes = 12 + 9 + (nb_points * sizeof(uint16_t));
- printf("Values and TCP Modbus overhead:\n");
- printf("* %d x %d bytes\n", n_loop, bytes);
- bytes = n_loop * bytes;
- rate = bytes / 1024 * G_MSEC_PER_SEC / (end - start);
- printf("* %.3f ms for %d bytes\n", elapsed, bytes);
- printf("* %d KiB/s\n", rate);
- printf("\n\n");
-
- printf("READ AND WRITE REGISTERS\n\n");
-
- nb_points = MODBUS_MAX_RW_WRITE_REGISTERS;
- start = gettime_ms();
- for (i=0; i<n_loop; i++) {
- rc = modbus_write_and_read_registers(ctx,
- 0, nb_points, tab_reg,
- 0, nb_points, tab_reg);
- if (rc == -1) {
- fprintf(stderr, "%s\n", modbus_strerror(errno));
- return -1;
- }
- }
- end = gettime_ms();
- elapsed = end - start;
-
- rate = (n_loop * nb_points) * G_MSEC_PER_SEC / (end - start);
- printf("Transfert rate in points/seconds:\n");
- printf("* %d registers/s\n", rate);
- printf("\n");
-
- bytes = n_loop * nb_points * sizeof(uint16_t);
- rate = bytes / 1024 * G_MSEC_PER_SEC / (end - start);
- printf("Values:\n");
- printf("* %d x %d values\n", n_loop, nb_points);
- printf("* %.3f ms for %d bytes\n", elapsed, bytes);
- printf("* %d KiB/s\n", rate);
- printf("\n");
-
- /* TCP:Query and reponse header and values */
- bytes = 12 + 9 + (nb_points * sizeof(uint16_t));
- printf("Values and TCP Modbus overhead:\n");
- printf("* %d x %d bytes\n", n_loop, bytes);
- bytes = n_loop * bytes;
- rate = bytes / 1024 * G_MSEC_PER_SEC / (end - start);
- printf("* %.3f ms for %d bytes\n", elapsed, bytes);
- printf("* %d KiB/s\n", rate);
- printf("\n");
-
- /* Free the memory */
- free(tab_bit);
- free(tab_reg);
-
- /* Close the connection */
- modbus_close(ctx);
- modbus_free(ctx);
-
- return 0;
-}
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