Use new EchoBody example as compliance subject

Author: uNetworkingAB

build.c

@@ -9,7 +9,7 @@ int main(int argc, char **argv) {
     char *CXX = strcpy(calloc(1024, 1), or_else(getenv("CXX"), "g++"));
     char *EXEC_SUFFIX = strcpy(calloc(1024, 1), maybe(getenv("EXEC_SUFFIX")));
 
-    char *EXAMPLE_FILES[] = {"CachingApp", "HelloWorldThreaded", "Http3Server", "Broadcast", "HelloWorld", "Crc32", "ServerName",
+    char *EXAMPLE_FILES[] = {"EchoBody", "CachingApp", "HelloWorldThreaded", "Http3Server", "Broadcast", "HelloWorld", "Crc32", "ServerName",
     "EchoServer", "BroadcastingEchoServer", "UpgradeSync", "UpgradeAsync", "ParameterRoutes"};
 
     strcat(CXXFLAGS, " -march=native -O3 -Wpedantic -Wall -Wextra -Wsign-conversion -Wconversion -std=c++20 -Isrc -IuSockets/src");

examples/EchoBody.cpp

@@ -0,0 +1,39 @@
+#include "App.h"
+
+/* Takes any method and echoes back the sent body. Can be used to test compliance of HTTP spec. */
+/* This example is also a good benchmark for body echoing. */
+
+int main() {
+
+	uWS::App().get("/*", [](auto *res, auto */*req*/) {
+		/* Technically the any route could be used likewise, but GET is optimized like this */
+		res->end();
+	}).any("/*", [](auto *res, auto */*req*/) {
+		std::unique_ptr<std::string> buffer;
+		res->onData([res, buffer = std::move(buffer)](std::string_view chunk, bool isFin) mutable {
+			if (isFin) [[likely]] {
+				if (buffer.get()) [[unlikely]] {
+					buffer->append(chunk);
+					res->end(*buffer);
+				} else {
+					res->end(chunk);
+				}
+			} else {
+				if (!buffer.get()) {
+					buffer = std::make_unique<std::string>(chunk);
+				} else {
+					buffer->append(chunk);
+				}
+			}
+		});
+
+		/* In this particular case we actually don't need to know this, as we only rely on RAII above. */
+		res->onAborted([]() {});
+	}).listen(3000, [](auto *listen_socket) {
+	    if (listen_socket) {
+			std::cerr << "Listening on port " << 3000 << std::endl;
+	    }
+	}).run();
+
+	std::cout << "Failed to listen on port 3000" << std::endl;
+}

tests/Makefile

@@ -26,7 +26,7 @@ smoke:
 	pkill Crc32
 
 compliance:
-	../HelloWorld &
+	../EchoBody &
 	sleep 1
 	~/.deno/bin/deno run --allow-net ../h1spec/http_test.ts localhost 3000
-	pkill HelloWorld
+	pkill EchoBody