1 files changed, 70 insertions, 0 deletions
diff --git a/examples/sinewave/sinewave.cpp b/examples/sinewave/sinewave.cpp
new file mode 100644
index 0000000..afffc82
--- /dev/null
+++ b/examples/sinewave/sinewave.cpp
@@ -0,0 +1,70 @@
+#include <signal.h>
+#include <unistd.h>
+
+#include <chrono>
+#include <functional>
+#include <iostream>
+#include <stdexcept>
+#include <string>
+#include <thread>
+
+#include <hwd.h>
+
+
+volatile sig_atomic_t keep_running {1};
+
+
+void termination_handler(int signum)
+{
+	keep_running = false;
+}
+
+
+using seconds = std::chrono::duration<double>;
+using Clock = std::chrono::high_resolution_clock;
+
+
+int main(int argc, char* argv[])
+{
+	struct sigaction int_action;
+
+	int_action.sa_handler = termination_handler;
+	sigemptyset(&int_action.sa_mask);
+	int_action.sa_flags = 0;
+	sigaction(SIGINT, &int_action, NULL);
+
+	seconds interval{ 0.01 };
+	int i = 0;
+	int samples = 0;
+	int	opt = 0;
+
+	try {
+		while ((opt = getopt(argc, argv, "n:i:")) != -1) {
+			switch (opt) {
+			case 'i':
+				interval = seconds{ std::stod(optarg) };
+				break;
+			case 'n':
+				samples = std::stoi(optarg);
+				break;
+			default:
+				std::cerr << "Usage: " << argv[0] << " [-i interval][-n samples]" << std::endl;
+				return 1;
+			}
+		}
+	}
+	catch (const std::invalid_argument& ia) {
+		std::cerr << "Invalid argument: " << ia.what() << std::endl;
+		return 1;
+	}
+
+	while (keep_running) {
+		if (i >= samples) break;
+		i++;
+		const auto endTime = Clock::now() + interval;
+		std::cout << hwd::sinewave::get_point() << std::endl;
+		std::this_thread::sleep_until(endTime);
+	}
+
+	return 0;
+}