Add RTT tests to BBRv3

.gitignore

@@ -23,3 +23,4 @@ Release
 *.b
 /picoquic/qlogger.c
 /picohttp_t/h3-m-www
+/enc_temp_folder/b4cf614ae2082c1d235e80918228e6

CMakeLists.txt

@@ -8,7 +8,7 @@ else()
 endif()
 
 project(picoquic
-        VERSION 1.1.19.0
+        VERSION 1.1.19.1
         DESCRIPTION "picoquic library"
         LANGUAGES C CXX)
 

UnitTest1/unittest1.cpp

@@ -2248,6 +2248,12 @@ namespace UnitTest1
             Assert::AreEqual(ret, 0);
         }
 
+        TEST_METHOD(mediatest_wifi) {
+            int ret = mediatest_wifi_test();
+
+            Assert::AreEqual(ret, 0);
+        }
+
         TEST_METHOD(mediatest_worst) {
             int ret = mediatest_worst_test();
 

loglib/csv.c

@@ -81,6 +81,7 @@ int picoquic_cc_bin_to_csv(FILE * f_binlog, FILE * f_csvlog)
     ret |= fprintf(f_csvlog, "cwin blkd, ") <= 0;
     ret |= fprintf(f_csvlog, "flow blkd, ") <= 0;
     ret |= fprintf(f_csvlog, "stream blkd, ") <= 0;
+    ret |= fprintf(f_csvlog, "app limited, ") <= 0;
     ret |= fprintf(f_csvlog, "cc_state, ") <= 0;
     ret |= fprintf(f_csvlog, "cc_param, ") <= 0;
     ret |= fprintf(f_csvlog, "bw_max, ") <= 0;
@@ -126,7 +127,6 @@ int csv_cb(bytestream * s, void * ptr)
     time -= data->starttime;
 
     if (ret == 0 && id == picoquic_log_event_cc_update) {
-
         uint64_t sequence = 0;
         uint64_t packet_rcvd = 0;
         uint64_t highest_ack = UINT64_MAX;
@@ -150,6 +150,7 @@ int csv_cb(bytestream * s, void * ptr)
         uint64_t cc_param = 0;
         uint64_t bw_max = 0;
         uint64_t bytes_in_transit = 0;
+        uint64_t app_limited = 0;
 
         ret |= byteread_vint(s, &sequence);
         ret |= byteread_vint(s, &packet_rcvd);
@@ -177,11 +178,12 @@ int csv_cb(bytestream * s, void * ptr)
         (void)byteread_vint(s, &cc_param);
         (void)byteread_vint(s, &bw_max);
         (void)byteread_vint(s, &bytes_in_transit);
+        (void)byteread_vint(s, &app_limited);
 
-        if (ret != 0 || fprintf(f_csvlog, "%" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRId64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ",",
+        if (ret != 0 || fprintf(f_csvlog, "%" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRId64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 ",", 
             time, path_id, sequence, (int64_t)highest_ack, high_ack_time, last_time_ack,
             cwin, one_way_delay, rtt_sample, SRTT, RTT_min, bandwidth_estimate, receive_rate_estimate, Send_MTU, pacing_packet_time,
-            nb_retrans, nb_spurious, cwin_blkd, flow_blkd, stream_blkd, cc_state, cc_param, bw_max, bytes_in_transit) <= 0) {
+            nb_retrans, nb_spurious, cwin_blkd, flow_blkd, stream_blkd, app_limited, cc_state, cc_param, bw_max, bytes_in_transit) <= 0) {
             ret = -1;
         }
         if (ret != 0 || fprintf(f_csvlog, "\n") <= 0) {

loglib/qlog.c

@@ -58,6 +58,7 @@ typedef struct qlog_context_st {
     unsigned int key_phase_received : 1;
     unsigned int spin_bit_sent_last : 1;
     unsigned int spin_bit_sent : 1;
+    unsigned int app_limited : 1;
 
     int state;
 } qlog_context_t;
@@ -1312,6 +1313,7 @@ int qlog_cc_update(uint64_t time, uint64_t path_id, bytestream* s, void* ptr)
     uint64_t cc_param = 0;
     uint64_t bw_max = 0;
     uint64_t bytes_in_transit = 0;
+    uint64_t app_limited = 0;
     qlog_context_t* ctx = (qlog_context_t*)ptr;
     FILE* f = ctx->f_txtlog;
 
@@ -1341,6 +1343,8 @@ int qlog_cc_update(uint64_t time, uint64_t path_id, bytestream* s, void* ptr)
     ret |= byteread_vint(s, &cc_param);
     ret |= byteread_vint(s, &bw_max);
     ret |= byteread_vint(s, &bytes_in_transit);
+    /* Not checking the app limited return, because it is not present in old bin logs */
+    (void) byteread_vint(s, &app_limited);
 
     if (ret == 0 &&
         (cwin != ctx->cwin || rtt_sample != ctx->rtt_sample || SRTT != ctx->SRTT ||
@@ -1393,6 +1397,12 @@ int qlog_cc_update(uint64_t time, uint64_t path_id, bytestream* s, void* ptr)
         if (rtt_sample != ctx->rtt_sample) {
             fprintf(f, "%s\"latest_rtt\": %" PRIu64, comma, rtt_sample);
             ctx->rtt_sample = rtt_sample;
+            comma = ",";
+        }
+
+        if (app_limited != ctx->app_limited) {
+            fprintf(f, "%s\"app_limited\": %" PRIu64, comma, app_limited);
+            ctx->app_limited = (app_limited != 0);
             /* comma = ","; (not useful since last block of function) */
         }