diff options
Diffstat (limited to 'samples/sockmap/sockmap_user.c')
| -rw-r--r-- | samples/sockmap/sockmap_user.c | 148 |
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); |