Add TX to RX feedback with timestamp support, only CF32

1 files changed, 98 insertions, 0 deletions

diff --git a/CircBufferTimestamp.cpp b/CircBufferTimestamp.cpp
new file mode 100644
index 0000000..ba66e68
--- /dev/null
+++ b/CircBufferTimestamp.cpp
@@ -0,0 +1,98 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 Matthias P. Braendli
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+// Tests for CircBufferTimestamp.hpp
+
+#include "CircBufferTimestamp.hpp"
+#include <cstdint>
+#include <thread>
+#include <iostream>
+
+using namespace std;
+
+const long long ticks_per_sample = 12;
+const size_t N_ITER = 40;
+const size_t N_SAMPS_PER_BUF = 10;
+
+CircularBuffer<int> cb(1000000);
+
+mutex cerr_mutex;
+
+void writer()
+{
+    const long long ts_start = 200;
+
+    for (size_t iterations = 0; iterations < N_ITER; iterations++) {
+        vector<int> b;
+        for (size_t i = 0; i < N_SAMPS_PER_BUF; i++) {
+            b.push_back(N_SAMPS_PER_BUF*iterations + i);
+        }
+
+        const long long ts_b = ts_start + ticks_per_sample * iterations * b.size();
+
+        cb.write(b.data(), b.size(), ts_b);
+        {
+            unique_lock<mutex> lock(cerr_mutex);
+            cerr << "Wrote " << b.size() << " at t=" << ts_b << endl;
+        }
+
+        this_thread::sleep_for(chrono::milliseconds(10));
+    }
+}
+
+void reader()
+{
+    size_t totaldata = 0;
+    long long req_ts = 450;
+    while (totaldata < N_ITER * N_SAMPS_PER_BUF / 3) {
+        long long ts = req_ts;
+        vector<int> buf(N_SAMPS_PER_BUF/2);
+        const size_t read = cb.read(buf.data(), buf.size(), &ts);
+        buf.resize(read);
+        totaldata += read;
+
+        {
+            unique_lock<mutex> lock(cerr_mutex);
+            cerr << "Read " << totaldata << " so far, ts_req=" <<
+                req_ts << " ts=" << ts << " data:";
+            for (const int samp : buf) {
+                cerr << " " << samp;
+            }
+            cerr << endl;
+        }
+        req_ts += ticks_per_sample * (N_SAMPS_PER_BUF/2 + 1);
+    }
+}
+
+int main(int argc, char **argv)
+{
+    cb.set_ticks_per_sample(ticks_per_sample);
+
+    auto writeThread = thread(writer);
+    auto readThread = thread(reader);
+
+    writeThread.join();
+    readThread.join();
+    return 0;
+}