67 lines
1.9 KiB
C++
67 lines
1.9 KiB
C++
#include "usart.h"
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#include <cstdio>
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#include <cstring>
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#include <cstdlib>
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#include <signal.h>
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#include <unistd.h>
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#include <chrono>
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using namespace std::chrono;
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class Top : public BaseLayer {
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static constexpr int max = 1024;
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unsigned tx_cnt, rx_cnt;
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volatile unsigned index;
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int passcnt;
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char buffer [max];
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public:
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explicit Top () : BaseLayer(), tx_cnt(0u), rx_cnt(0u), index(0u), passcnt(0) {}
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void puts (const char * str) {
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const unsigned l = strlen(str);
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tx_cnt += Down(str, l);
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}
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uint32_t Up(const char * data, const uint32_t len) override {
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rx_cnt += len;
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for (unsigned n=0; n<len; n++) {
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const char c = data [n];
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buffer [index++] = c;
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if (c == '\n') {
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buffer [index - 2] = '\0';
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printf("Rx (%d) %s \r", passcnt++, buffer);
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fflush(stdout);
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index = 0u;
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}
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}
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return len;
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}
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void result (const int t) {
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const double real_br = 1.0e6 * (double) tx_cnt / (double) t;
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printf("\nTx %d, Rx %d, tx = %g bytes/s\n", tx_cnt, rx_cnt, real_br);
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}
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};
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static const char * TestString = "THE QUICK BROWN FOX JUMPED OVER THE LAZY DOG'S BACK 1234567890\r\n";
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static volatile bool loop = false;
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static void Handler (int) {
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loop = false;
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}
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int main (int argc, char * argv[]) {
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// 4 MBd je maximum.
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int baud = 4'000'000;
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if (argc > 1) {
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baud = atoi (argv[1]);
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}
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loop = true;
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signal (SIGINT, Handler);
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//UsartClass usart ("/dev/ttyACM0", baud); // obecně
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UsartClass usart ("/dev/serial/by-id/usb-Kizarm_Labs._USB__=__USART_0002-if00", baud);
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Top top;
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top += usart;
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auto start = high_resolution_clock::now();
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while (loop) {
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top.puts(TestString);
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}
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auto stop = high_resolution_clock::now();
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usleep(100'000);
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int duration = duration_cast<microseconds>(stop - start).count();
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top.result(duration);
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return 0;
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}
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