version 1.1.1.2, 2021/03/17 00:36:46
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version 1.1.1.3, 2023/09/27 11:14:54
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/* |
/* |
* iperf, Copyright (c) 2014-2020, The Regents of the University of | * iperf, Copyright (c) 2014-2022, The Regents of the University of |
* California, through Lawrence Berkeley National Laboratory (subject |
* California, through Lawrence Berkeley National Laboratory (subject |
* to receipt of any required approvals from the U.S. Dept. of |
* to receipt of any required approvals from the U.S. Dept. of |
* Energy). All rights reserved. |
* Energy). All rights reserved. |
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Line 54
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int |
int |
iperf_create_streams(struct iperf_test *test, int sender) |
iperf_create_streams(struct iperf_test *test, int sender) |
{ |
{ |
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if (NULL == test) |
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{ |
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iperf_err(NULL, "No test\n"); |
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return -1; |
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} |
int i, s; |
int i, s; |
#if defined(HAVE_TCP_CONGESTION) |
#if defined(HAVE_TCP_CONGESTION) |
int saved_errno; |
int saved_errno; |
Line 64 iperf_create_streams(struct iperf_test *test, int send
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Line 69 iperf_create_streams(struct iperf_test *test, int send
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for (i = 0; i < test->num_streams; ++i) { |
for (i = 0; i < test->num_streams; ++i) { |
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test->bind_port = orig_bind_port; |
test->bind_port = orig_bind_port; |
if (orig_bind_port) | if (orig_bind_port) { |
test->bind_port += i; |
test->bind_port += i; |
if ((s = test->protocol->connect(test)) < 0) | // If Bidir make sure send and receive ports are different |
| if (!sender && test->mode == BIDIRECTIONAL) |
| test->bind_port += test->num_streams; |
| } |
| s = test->protocol->connect(test); |
| test->bind_port = orig_bind_port; |
| if (s < 0) |
return -1; |
return -1; |
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#if defined(HAVE_TCP_CONGESTION) |
#if defined(HAVE_TCP_CONGESTION) |
Line 78 iperf_create_streams(struct iperf_test *test, int send
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Line 89 iperf_create_streams(struct iperf_test *test, int send
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errno = saved_errno; |
errno = saved_errno; |
i_errno = IESETCONGESTION; |
i_errno = IESETCONGESTION; |
return -1; |
return -1; |
} | } |
} |
} |
{ |
{ |
socklen_t len = TCP_CA_NAME_MAX; |
socklen_t len = TCP_CA_NAME_MAX; |
char ca[TCP_CA_NAME_MAX + 1]; |
char ca[TCP_CA_NAME_MAX + 1]; |
if (getsockopt(s, IPPROTO_TCP, TCP_CONGESTION, ca, &len) < 0) { | int rc; |
| rc = getsockopt(s, IPPROTO_TCP, TCP_CONGESTION, ca, &len); |
| if (rc < 0 && test->congestion) { |
saved_errno = errno; |
saved_errno = errno; |
close(s); |
close(s); |
errno = saved_errno; |
errno = saved_errno; |
i_errno = IESETCONGESTION; |
i_errno = IESETCONGESTION; |
return -1; |
return -1; |
} |
} |
test->congestion_used = strdup(ca); | // Set actual used congestion alg, or set to unknown if could not get it |
| if (rc < 0) |
| test->congestion_used = strdup("unknown"); |
| else |
| test->congestion_used = strdup(ca); |
if (test->debug) { |
if (test->debug) { |
printf("Congestion algorithm is %s\n", test->congestion_used); |
printf("Congestion algorithm is %s\n", test->congestion_used); |
} |
} |
Line 152 create_client_timers(struct iperf_test * test)
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Line 169 create_client_timers(struct iperf_test * test)
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{ |
{ |
struct iperf_time now; |
struct iperf_time now; |
TimerClientData cd; |
TimerClientData cd; |
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if (NULL == test) |
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{ |
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iperf_err(NULL, "No test\n"); |
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i_errno = IEINITTEST; |
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return -1; |
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} |
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if (iperf_time_now(&now) < 0) { |
if (iperf_time_now(&now) < 0) { |
i_errno = IEINITTEST; |
i_errno = IEINITTEST; |
Line 166 create_client_timers(struct iperf_test * test)
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Line 189 create_client_timers(struct iperf_test * test)
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i_errno = IEINITTEST; |
i_errno = IEINITTEST; |
return -1; |
return -1; |
} |
} |
} | } |
if (test->stats_interval != 0) { |
if (test->stats_interval != 0) { |
test->stats_timer = tmr_create(&now, client_stats_timer_proc, cd, test->stats_interval * SEC_TO_US, 1); |
test->stats_timer = tmr_create(&now, client_stats_timer_proc, cd, test->stats_interval * SEC_TO_US, 1); |
if (test->stats_timer == NULL) { |
if (test->stats_timer == NULL) { |
Line 207 create_client_omit_timer(struct iperf_test * test)
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Line 230 create_client_omit_timer(struct iperf_test * test)
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{ |
{ |
struct iperf_time now; |
struct iperf_time now; |
TimerClientData cd; |
TimerClientData cd; |
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if (NULL == test) |
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{ |
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iperf_err(NULL, "No test\n"); |
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return -1; |
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} |
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if (test->omit == 0) { |
if (test->omit == 0) { |
test->omit_timer = NULL; |
test->omit_timer = NULL; |
Line 233 iperf_handle_message_client(struct iperf_test *test)
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Line 261 iperf_handle_message_client(struct iperf_test *test)
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int rval; |
int rval; |
int32_t err; |
int32_t err; |
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if (NULL == test) |
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{ |
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iperf_err(NULL, "No test\n"); |
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i_errno = IEINITTEST; |
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return -1; |
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} |
/*!!! Why is this read() and not Nread()? */ |
/*!!! Why is this read() and not Nread()? */ |
if ((rval = read(test->ctrl_sck, (char*) &test->state, sizeof(signed char))) <= 0) { |
if ((rval = read(test->ctrl_sck, (char*) &test->state, sizeof(signed char))) <= 0) { |
if (rval == 0) { |
if (rval == 0) { |
Line 328 iperf_handle_message_client(struct iperf_test *test)
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Line 362 iperf_handle_message_client(struct iperf_test *test)
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int |
int |
iperf_connect(struct iperf_test *test) |
iperf_connect(struct iperf_test *test) |
{ |
{ |
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int opt; |
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socklen_t len; |
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if (NULL == test) |
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{ |
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iperf_err(NULL, "No test\n"); |
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return -1; |
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} |
FD_ZERO(&test->read_set); |
FD_ZERO(&test->read_set); |
FD_ZERO(&test->write_set); |
FD_ZERO(&test->write_set); |
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Line 336 iperf_connect(struct iperf_test *test)
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Line 378 iperf_connect(struct iperf_test *test)
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/* Create and connect the control channel */ |
/* Create and connect the control channel */ |
if (test->ctrl_sck < 0) |
if (test->ctrl_sck < 0) |
// Create the control channel using an ephemeral port |
// Create the control channel using an ephemeral port |
test->ctrl_sck = netdial(test->settings->domain, Ptcp, test->bind_address, 0, test->server_hostname, test->server_port, test->settings->connect_timeout); | test->ctrl_sck = netdial(test->settings->domain, Ptcp, test->bind_address, test->bind_dev, 0, test->server_hostname, test->server_port, test->settings->connect_timeout); |
if (test->ctrl_sck < 0) { |
if (test->ctrl_sck < 0) { |
i_errno = IECONNECT; |
i_errno = IECONNECT; |
return -1; |
return -1; |
} |
} |
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// set TCP_NODELAY for lower latency on control messages |
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int flag = 1; |
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if (setsockopt(test->ctrl_sck, IPPROTO_TCP, TCP_NODELAY, (char *) &flag, sizeof(int))) { |
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i_errno = IESETNODELAY; |
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return -1; |
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} |
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#if defined(HAVE_TCP_USER_TIMEOUT) |
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if ((opt = test->settings->snd_timeout)) { |
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if (setsockopt(test->ctrl_sck, IPPROTO_TCP, TCP_USER_TIMEOUT, &opt, sizeof(opt)) < 0) { |
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i_errno = IESETUSERTIMEOUT; |
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return -1; |
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} |
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} |
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#endif /* HAVE_TCP_USER_TIMEOUT */ |
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if (Nwrite(test->ctrl_sck, test->cookie, COOKIE_SIZE, Ptcp) < 0) { |
if (Nwrite(test->ctrl_sck, test->cookie, COOKIE_SIZE, Ptcp) < 0) { |
i_errno = IESENDCOOKIE; |
i_errno = IESENDCOOKIE; |
return -1; |
return -1; |
Line 350 iperf_connect(struct iperf_test *test)
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Line 408 iperf_connect(struct iperf_test *test)
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FD_SET(test->ctrl_sck, &test->read_set); |
FD_SET(test->ctrl_sck, &test->read_set); |
if (test->ctrl_sck > test->max_fd) test->max_fd = test->ctrl_sck; |
if (test->ctrl_sck > test->max_fd) test->max_fd = test->ctrl_sck; |
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int opt; |
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socklen_t len; |
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len = sizeof(opt); |
len = sizeof(opt); |
if (getsockopt(test->ctrl_sck, IPPROTO_TCP, TCP_MAXSEG, &opt, &len) < 0) { |
if (getsockopt(test->ctrl_sck, IPPROTO_TCP, TCP_MAXSEG, &opt, &len) < 0) { |
test->ctrl_sck_mss = 0; |
test->ctrl_sck_mss = 0; |
Line 362 iperf_connect(struct iperf_test *test)
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Line 417 iperf_connect(struct iperf_test *test)
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test->ctrl_sck_mss = opt; |
test->ctrl_sck_mss = opt; |
} |
} |
else { |
else { |
char str[128]; | char str[WARN_STR_LEN]; |
snprintf(str, sizeof(str), |
snprintf(str, sizeof(str), |
"Ignoring nonsense TCP MSS %d", opt); |
"Ignoring nonsense TCP MSS %d", opt); |
warning(str); |
warning(str); |
Line 409 iperf_connect(struct iperf_test *test)
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Line 464 iperf_connect(struct iperf_test *test)
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*/ |
*/ |
if (test->ctrl_sck_mss > 0 && |
if (test->ctrl_sck_mss > 0 && |
test->settings->blksize > test->ctrl_sck_mss) { |
test->settings->blksize > test->ctrl_sck_mss) { |
char str[128]; | char str[WARN_STR_LEN]; |
snprintf(str, sizeof(str), |
snprintf(str, sizeof(str), |
"UDP block size %d exceeds TCP MSS %d, may result in fragmentation / drops", test->settings->blksize, test->ctrl_sck_mss); |
"UDP block size %d exceeds TCP MSS %d, may result in fragmentation / drops", test->settings->blksize, test->ctrl_sck_mss); |
warning(str); |
warning(str); |
Line 423 iperf_connect(struct iperf_test *test)
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Line 478 iperf_connect(struct iperf_test *test)
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int |
int |
iperf_client_end(struct iperf_test *test) |
iperf_client_end(struct iperf_test *test) |
{ |
{ |
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if (NULL == test) |
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{ |
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iperf_err(NULL, "No test\n"); |
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return -1; |
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} |
struct iperf_stream *sp; |
struct iperf_stream *sp; |
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/* Close all stream sockets */ |
/* Close all stream sockets */ |
Line 433 iperf_client_end(struct iperf_test *test)
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Line 493 iperf_client_end(struct iperf_test *test)
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/* show final summary */ |
/* show final summary */ |
test->reporter_callback(test); |
test->reporter_callback(test); |
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if (iperf_set_send_state(test, IPERF_DONE) != 0) | /* Send response only if no error in server */ |
return -1; | if (test->state > 0) { |
| if (iperf_set_send_state(test, IPERF_DONE) != 0) |
| return -1; |
| } |
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/* Close control socket */ |
/* Close control socket */ |
if (test->ctrl_sck) | if (test->ctrl_sck >= 0) |
close(test->ctrl_sck); |
close(test->ctrl_sck); |
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return 0; |
return 0; |
Line 453 iperf_run_client(struct iperf_test * test)
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Line 516 iperf_run_client(struct iperf_test * test)
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struct iperf_time now; |
struct iperf_time now; |
struct timeval* timeout = NULL; |
struct timeval* timeout = NULL; |
struct iperf_stream *sp; |
struct iperf_stream *sp; |
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struct iperf_time last_receive_time; |
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struct iperf_time diff_time; |
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struct timeval used_timeout; |
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int64_t t_usecs; |
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int64_t timeout_us; |
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int64_t rcv_timeout_us; |
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if (NULL == test) |
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{ |
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iperf_err(NULL, "No test\n"); |
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return -1; |
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} |
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if (test->logfile) |
if (test->logfile) |
if (iperf_open_logfile(test) < 0) |
if (iperf_open_logfile(test) < 0) |
return -1; |
return -1; |
Line 482 iperf_run_client(struct iperf_test * test)
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Line 557 iperf_run_client(struct iperf_test * test)
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/* Begin calculating CPU utilization */ |
/* Begin calculating CPU utilization */ |
cpu_util(NULL); |
cpu_util(NULL); |
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if (test->mode != SENDER) |
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rcv_timeout_us = (test->settings->rcv_timeout.secs * SEC_TO_US) + test->settings->rcv_timeout.usecs; |
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else |
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rcv_timeout_us = 0; |
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startup = 1; |
startup = 1; |
while (test->state != IPERF_DONE) { |
while (test->state != IPERF_DONE) { |
Line 489 iperf_run_client(struct iperf_test * test)
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Line 568 iperf_run_client(struct iperf_test * test)
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memcpy(&write_set, &test->write_set, sizeof(fd_set)); |
memcpy(&write_set, &test->write_set, sizeof(fd_set)); |
iperf_time_now(&now); |
iperf_time_now(&now); |
timeout = tmr_timeout(&now); |
timeout = tmr_timeout(&now); |
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// In reverse active mode client ensures data is received |
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if (test->state == TEST_RUNNING && rcv_timeout_us > 0) { |
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timeout_us = -1; |
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if (timeout != NULL) { |
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used_timeout.tv_sec = timeout->tv_sec; |
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used_timeout.tv_usec = timeout->tv_usec; |
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timeout_us = (timeout->tv_sec * SEC_TO_US) + timeout->tv_usec; |
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} |
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if (timeout_us < 0 || timeout_us > rcv_timeout_us) { |
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used_timeout.tv_sec = test->settings->rcv_timeout.secs; |
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used_timeout.tv_usec = test->settings->rcv_timeout.usecs; |
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} |
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timeout = &used_timeout; |
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} |
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result = select(test->max_fd + 1, &read_set, &write_set, NULL, timeout); |
result = select(test->max_fd + 1, &read_set, &write_set, NULL, timeout); |
if (result < 0 && errno != EINTR) { |
if (result < 0 && errno != EINTR) { |
i_errno = IESELECT; |
i_errno = IESELECT; |
goto cleanup_and_fail; |
goto cleanup_and_fail; |
} | } else if (result == 0 && test->state == TEST_RUNNING && rcv_timeout_us > 0) { |
| // If nothing was received in non-reverse running state then probably something got stack - |
| // either client, server or network, and test should be terminated. |
| iperf_time_now(&now); |
| if (iperf_time_diff(&now, &last_receive_time, &diff_time) == 0) { |
| t_usecs = iperf_time_in_usecs(&diff_time); |
| if (t_usecs > rcv_timeout_us) { |
| i_errno = IENOMSG; |
| goto cleanup_and_fail; |
| } |
| |
| } |
| } |
| |
if (result > 0) { |
if (result > 0) { |
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if (rcv_timeout_us > 0) { |
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iperf_time_now(&last_receive_time); |
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} |
if (FD_ISSET(test->ctrl_sck, &read_set)) { |
if (FD_ISSET(test->ctrl_sck, &read_set)) { |
if (iperf_handle_message_client(test) < 0) { |
if (iperf_handle_message_client(test) < 0) { |
goto cleanup_and_fail; |
goto cleanup_and_fail; |
Line 539 iperf_run_client(struct iperf_test * test)
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Line 650 iperf_run_client(struct iperf_test * test)
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iperf_time_now(&now); |
iperf_time_now(&now); |
tmr_run(&now); |
tmr_run(&now); |
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/* Is the test done yet? */ | /* |
| * Is the test done yet? We have to be out of omitting |
| * mode, and then we have to have fulfilled one of the |
| * ending criteria, either by times, bytes, or blocks. |
| * The bytes and blocks tests needs to handle both the |
| * cases of the client being the sender and the client |
| * being the receiver. |
| */ |
if ((!test->omitting) && |
if ((!test->omitting) && |
((test->duration != 0 && test->done) || | (test->done || |
(test->settings->bytes != 0 && test->bytes_sent >= test->settings->bytes) || | (test->settings->bytes != 0 && (test->bytes_sent >= test->settings->bytes || |
(test->settings->blocks != 0 && test->blocks_sent >= test->settings->blocks))) { | test->bytes_received >= test->settings->bytes)) || |
| (test->settings->blocks != 0 && (test->blocks_sent >= test->settings->blocks || |
| test->blocks_received >= test->settings->blocks)))) { |
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// Unset non-blocking for non-UDP tests |
// Unset non-blocking for non-UDP tests |
if (test->protocol->id != Pudp) { |
if (test->protocol->id != Pudp) { |
Line 585 iperf_run_client(struct iperf_test * test)
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Line 705 iperf_run_client(struct iperf_test * test)
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cleanup_and_fail: |
cleanup_and_fail: |
iperf_client_end(test); |
iperf_client_end(test); |
if (test->json_output) | if (test->json_output) { |
iperf_json_finish(test); | cJSON_AddStringToObject(test->json_top, "error", iperf_strerror(i_errno)); |
| iperf_json_finish(test); |
| } |
iflush(test); |
iflush(test); |
return -1; |
return -1; |
} |
} |