misc(examples): add cursor position query speed test

Author: jarjk

examples/cursor-position-query.cpp

@@ -0,0 +1,34 @@
+#include "../tui.hpp"
+#include <cassert>
+#include <chrono>
+#include <cstdint>
+// #include <thread>
+
+// returns how much the queries altogether took in ns
+uint64_t get_cursor_pos_n(const unsigned n) {
+    auto start = std::chrono::high_resolution_clock::now();
+    for (auto i = 0; i < n; ++i) {
+        // std::cout << "getting cursor position...\n";
+        auto cursor_pos = tui::cursor::get_position();
+        // std::cout << "cursor @ {" << cursor_pos.first << ", " << cursor_pos.second << "}\n";
+        // assert(cursor_pos == cursor_pos_tty);
+        // std::this_thread::sleep_for(std::chrono::milliseconds(800));
+    }
+    auto end = std::chrono::high_resolution_clock::now();
+    return std::chrono::duration_cast<std::chrono::nanoseconds>(end - start).count();
+}
+
+int main(int argc, char** argv) {
+    tui::enable_raw_mode();
+
+    unsigned n = 8;
+    if (argc > 1) {
+        n = std::stoi(argv[1]);
+    }
+
+    auto query_t_sum = get_cursor_pos_n(n);
+    // std::this_thread::sleep_for(std::chrono::seconds(8));
+    tui::disable_raw_mode();
+    std::cout << "getting cursor " << n << " times took: " << query_t_sum / 1000000 << "ms, avg: " << query_t_sum / n <<"ns\n";
+    return 0;
+}