added crow

include/crow/socket_acceptors.h

@@ -0,0 +1,94 @@
+#pragma once
+#ifdef CROW_USE_BOOST
+#include <boost/asio.hpp>
+#ifdef CROW_ENABLE_SSL
+#include <boost/asio/ssl.hpp>
+#endif
+#else
+#ifndef ASIO_STANDALONE
+#define ASIO_STANDALONE
+#endif
+#include <asio.hpp>
+#ifdef CROW_ENABLE_SSL
+#include <asio/ssl.hpp>
+#endif
+#endif
+
+#include "crow/logging.h"
+
+namespace crow
+{
+#ifdef CROW_USE_BOOST
+    namespace asio = boost::asio;
+    using error_code = boost::system::error_code;
+#else
+    using error_code = asio::error_code;
+#endif
+    using tcp = asio::ip::tcp;
+    using stream_protocol = asio::local::stream_protocol;
+
+    struct TCPAcceptor
+    {
+        using endpoint = tcp::endpoint;
+        tcp::acceptor acceptor_;
+        TCPAcceptor(asio::io_context& io_context):
+          acceptor_(io_context) {}
+
+        int16_t port() const
+        {
+            return acceptor_.local_endpoint().port();
+        }
+        std::string address() const
+        {
+            return acceptor_.local_endpoint().address().to_string();
+        }
+        std::string url_display(bool ssl_used) const
+        {
+            auto address = acceptor_.local_endpoint().address();
+            return (ssl_used ? "https://" : "http://") + (address.is_v4() ? address.to_string() : "[" + address.to_string() + "]") + ":" + std::to_string(acceptor_.local_endpoint().port());
+        }
+        tcp::acceptor& raw_acceptor()
+        {
+            return acceptor_;
+        }
+        endpoint local_endpoint() const
+        {
+            return acceptor_.local_endpoint();
+        }
+        inline static tcp::acceptor::reuse_address reuse_address_option() { return tcp::acceptor::reuse_address(true); }
+    };
+
+    struct UnixSocketAcceptor
+    {
+        using endpoint = stream_protocol::endpoint;
+        stream_protocol::acceptor acceptor_;
+        UnixSocketAcceptor(asio::io_context& io_context):
+          acceptor_(io_context) {}
+
+        int16_t port() const
+        {
+            return 0;
+        }
+        std::string address() const
+        {
+            return acceptor_.local_endpoint().path();
+        }
+        std::string url_display(bool) const
+        {
+            return acceptor_.local_endpoint().path();
+        }
+        stream_protocol::acceptor& raw_acceptor()
+        {
+            return acceptor_;
+        }
+        endpoint local_endpoint() const
+        {
+            return acceptor_.local_endpoint();
+        }
+        inline static stream_protocol::acceptor::reuse_address reuse_address_option()
+        {
+            // reuse addr must be false (https://github.com/chriskohlhoff/asio/issues/622)
+            return stream_protocol::acceptor::reuse_address(false);
+        }
+    };
+} // namespace crow