X-Git-Url: http://rtime.felk.cvut.cz/gitweb/can-benchmark.git/blobdiff_plain/7f0bb45bf01be785d7077985aabfefeb3b2c1da2..87ae560edb2ef5f1b6b2029a3fe7c0259c45ffb1:/recvmmsg/can_recvmmsg.c

diff --git a/recvmmsg/can_recvmmsg.c b/recvmmsg/can_recvmmsg.c
index 4041f62..4dee5f1 100644
--- a/recvmmsg/can_recvmmsg.c
+++ b/recvmmsg/can_recvmmsg.c
@@ -14,12 +14,14 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <time.h>
+#include <stdbool.h>
 
 #define CHECK(cmd) do { if ((cmd) == -1) { perror(#cmd); exit(1); } } while (0)
 
 char *dev = "vcan0";
 int count = 10000;
 enum { READ, RECVMMSG } recv_method = READ;
+bool quiet = false;
 
 /* Subtract the `struct timespec' values X and Y,
    storing the result in RESULT (result = x - y).
@@ -79,7 +81,7 @@ void benchmark()
 	memset(&cf, 0, sizeof(cf));
 	cf.can_dlc = 8;
 
-	fprintf(stderr, "Sending %d frames\n", count);
+	if (!quiet) fprintf(stderr, "Sending %d frames\n", count);
 	for (i = 0; i < count; i++) {
 		ret = write(ss, &cf, sizeof(cf));
 		if (ret != sizeof(cf)) {
@@ -90,7 +92,7 @@ void benchmark()
 
 	switch (recv_method) {
 	case READ: {
-		fprintf(stderr, "Receiving %d frames with read()\n", count);
+		if (!quiet) fprintf(stderr, "Receiving %d frames with read()\n", count);
 		clock_gettime(CLOCK_MONOTONIC, &t1);
 		for (i = 0; i < count; i++) {
 			//fprintf(stderr, "Receiving frame %d\r", i);
@@ -105,7 +107,7 @@ void benchmark()
 		break;
 	}
 	case RECVMMSG: {
-		fprintf(stderr, "Receiving %d frames with recvmmsg()\n", count);
+		if (!quiet) fprintf(stderr, "Receiving %d frames with recvmmsg()\n", count);
 		struct mmsghdr msgs[count];
 		struct iovec iovecs[count];
 		char bufs[count][sizeof(struct can_frame)];
@@ -139,7 +141,7 @@ int main(int argc, char *argv[])
 {
 	int opt;
 
-	while ((opt = getopt(argc, argv, "c:mr")) != -1) {
+	while ((opt = getopt(argc, argv, "c:mrq")) != -1) {
 		switch (opt) {
 		case 'c':
 			count = atoi(optarg);
@@ -150,6 +152,9 @@ int main(int argc, char *argv[])
 		case 'r':
 			recv_method = READ;
 			break;
+		case 'q':
+			quiet = true;
+			break;
 		default: /* '?' */
 			fprintf(stderr, "Usage: %s [-c <count>] [-r] [-m]  [interface]\n",
 				argv[0]);