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Diffstat (limited to 'samples/sockmap/sockmap_user.c')
-rw-r--r--samples/sockmap/sockmap_user.c148
1 files changed, 145 insertions, 3 deletions
diff --git a/samples/sockmap/sockmap_user.c b/samples/sockmap/sockmap_user.c
index ffd1d127a9d3..ccc717349eba 100644
--- a/samples/sockmap/sockmap_user.c
+++ b/samples/sockmap/sockmap_user.c
@@ -56,6 +56,9 @@ static const struct option long_options[] = {
{"cgroup", required_argument, NULL, 'c' },
{"rate", required_argument, NULL, 'r' },
{"verbose", no_argument, NULL, 'v' },
+ {"iov_count", required_argument, NULL, 'i' },
+ {"length", required_argument, NULL, 'l' },
+ {"test", required_argument, NULL, 't' },
{0, 0, NULL, 0 }
};
@@ -182,6 +185,118 @@ static int sockmap_init_sockets(void)
return 0;
}
+struct msg_stats {
+ size_t bytes_sent;
+ size_t bytes_recvd;
+};
+
+static int msg_loop(int fd, int iov_count, int iov_length, int cnt,
+ struct msg_stats *s, bool tx)
+{
+ struct msghdr msg = {0};
+ struct iovec *iov;
+ int i, flags = 0;
+
+ iov = calloc(iov_count, sizeof(struct iovec));
+ if (!iov)
+ return errno;
+
+ for (i = 0; i < iov_count; i++) {
+ char *d = calloc(iov_length, sizeof(char));
+
+ if (!d) {
+ fprintf(stderr, "iov_count %i/%i OOM\n", i, iov_count);
+ goto out_errno;
+ }
+ iov[i].iov_base = d;
+ iov[i].iov_len = iov_length;
+ }
+
+ msg.msg_iov = iov;
+ msg.msg_iovlen = iov_count;
+
+ if (tx) {
+ for (i = 0; i < cnt; i++) {
+ int sent = sendmsg(fd, &msg, flags);
+
+ if (sent < 0) {
+ perror("send loop error:");
+ goto out_errno;
+ }
+ s->bytes_sent += sent;
+ }
+ } else {
+ int slct, recv, max_fd = fd;
+ struct timeval timeout;
+ float total_bytes;
+ fd_set w;
+
+ total_bytes = (float)iov_count * (float)iov_length * (float)cnt;
+ while (s->bytes_recvd < total_bytes) {
+ timeout.tv_sec = 1;
+ timeout.tv_usec = 0;
+
+ /* FD sets */
+ FD_ZERO(&w);
+ FD_SET(fd, &w);
+
+ slct = select(max_fd + 1, &w, NULL, NULL, &timeout);
+ if (slct == -1) {
+ perror("select()");
+ goto out_errno;
+ } else if (!slct) {
+ fprintf(stderr, "unexpected timeout\n");
+ errno = -EIO;
+ goto out_errno;
+ }
+
+ recv = recvmsg(fd, &msg, flags);
+ if (recv < 0) {
+ if (errno != EWOULDBLOCK) {
+ perror("recv failed()\n");
+ goto out_errno;
+ }
+ }
+
+ s->bytes_recvd += recv;
+ }
+ }
+
+ for (i = 0; i < iov_count; i++)
+ free(iov[i].iov_base);
+ free(iov);
+ return 0;
+out_errno:
+ for (i = 0; i < iov_count; i++)
+ free(iov[i].iov_base);
+ free(iov);
+ return errno;
+}
+
+static int sendmsg_test(int iov_count, int iov_buf, int cnt, int verbose)
+{
+ struct msg_stats s = {0};
+ int err;
+
+ err = msg_loop(c1, iov_count, iov_buf, cnt, &s, true);
+ if (err) {
+ fprintf(stderr,
+ "msg_loop_tx: iov_count %i iov_buf %i cnt %i err %i\n",
+ iov_count, iov_buf, cnt, err);
+ return err;
+ }
+
+ err = msg_loop(p2, iov_count, iov_buf, cnt, &s, false);
+ if (err)
+ fprintf(stderr,
+ "msg_loop_rx: iov_count %i iov_buf %i cnt %i err %i\n",
+ iov_count, iov_buf, cnt, err);
+
+ fprintf(stdout, "sendmsg: TX_bytes %zu RX_bytes %zu\n",
+ s.bytes_sent, s.bytes_recvd);
+ return err;
+}
+
static int forever_ping_pong(int rate, int verbose)
{
struct timeval timeout;
@@ -257,13 +372,19 @@ static int forever_ping_pong(int rate, int verbose)
return 0;
}
+enum {
+ PING_PONG,
+ SENDMSG,
+};
+
int main(int argc, char **argv)
{
- int rate = 1, verbose = 0;
+ int iov_count = 1, length = 1024, rate = 1, verbose = 0;
int opt, longindex, err, cg_fd = 0;
+ int test = PING_PONG;
char filename[256];
- while ((opt = getopt_long(argc, argv, "hvc:r:",
+ while ((opt = getopt_long(argc, argv, "hvc:r:i:l:t:",
long_options, &longindex)) != -1) {
switch (opt) {
/* Cgroup configuration */
@@ -282,6 +403,22 @@ int main(int argc, char **argv)
case 'v':
verbose = 1;
break;
+ case 'i':
+ iov_count = atoi(optarg);
+ break;
+ case 'l':
+ length = atoi(optarg);
+ break;
+ case 't':
+ if (strcmp(optarg, "ping") == 0) {
+ test = PING_PONG;
+ } else if (strcmp(optarg, "sendmsg") == 0) {
+ test = SENDMSG;
+ } else {
+ usage(argv);
+ return -1;
+ }
+ break;
case 'h':
default:
usage(argv);
@@ -339,7 +476,12 @@ int main(int argc, char **argv)
goto out;
}
- err = forever_ping_pong(rate, verbose);
+ if (test == PING_PONG)
+ err = forever_ping_pong(rate, verbose);
+ else if (test == SENDMSG)
+ err = sendmsg_test(iov_count, length, rate, verbose);
+ else
+ fprintf(stderr, "unknown test\n");
out:
close(s1);
close(s2);