Allow to stop server and restart server; allow to run loop in multiple threads.

examples/server_states.cc

@@ -0,0 +1,50 @@
+#include "webcc/logger.h"
+#include "webcc/response_builder.h"
+#include "webcc/server.h"
+
+class HelloView : public webcc::View {
+public:
+  webcc::ResponsePtr Handle(webcc::RequestPtr request) override {
+    if (request->method() == "GET") {
+      return webcc::ResponseBuilder{}.OK().Body("Hello, World!")();
+    }
+
+    return {};
+  }
+};
+
+int main() {
+  WEBCC_LOG_INIT("", webcc::LOG_CONSOLE);
+
+  try {
+    webcc::Server server(8080);
+
+    server.Route("/", std::make_shared<HelloView>());
+
+    // Run the server in a separate thread.
+    std::thread t([&server]() { server.Run(); });
+
+    // Let the server run for several seconds.
+    std::this_thread::sleep_for(std::chrono::seconds(3));
+
+    // Stop the server.
+    server.Stop();
+
+    // Wait for the server to finish.
+    t.join();
+
+    // Run the server again.
+    std::thread t2([&server]() { server.Run(); });
+
+    // Wait for the server to finish.
+    t2.join();
+
+  } catch (const std::exception&) {
+    // NOTE:
+    // Catch std::exception instead of webcc::Error.
+    // webcc::Error is for client only. 
+    return 1;
+  }
+
+  return 0;
+}