Add WITH_LIBDEFLATE

Author: uNetworkingAB

.gitmodules

@@ -10,3 +10,6 @@
 [submodule "h1spec"]
 	path = h1spec
 	url = https://github.com/uNetworking/h1spec
+[submodule "libdeflate"]
+	path = libdeflate
+	url = ./libdeflate

build.c

@@ -15,6 +15,12 @@ int main(int argc, char **argv) {
     strcat(CXXFLAGS, " -march=native -O3 -Wpedantic -Wall -Wextra -Wsign-conversion -Wconversion -std=c++20 -Isrc -IuSockets/src");
     strcat(LDFLAGS, " uSockets/*.o");
 
+    // We can use libdeflate as a fast path to zlib (you need to build it first)
+    if (env_is("WITH_LIBDEFLATE", "1")) {
+        strcat(LDFLAGS, " libdeflate/libdeflate.a");
+        strcat(CXXFLAGS, " -DUWS_USE_LIBDEFLATE -I libdeflate");
+    }
+
     // By default we use LTO, but Windows does not support it
     if (!env_is("WITH_LTO", "0")) {
         strcat(CXXFLAGS, " -flto=auto");

examples/EchoServer.cpp

@@ -19,7 +19,7 @@ int main() {
         .passphrase = "1234"
     }).ws<PerSocketData>("/*", {
         /* Settings */
-        .compression = uWS::CompressOptions(uWS::DEDICATED_COMPRESSOR_4KB | uWS::DEDICATED_DECOMPRESSOR),
+        .compression = uWS::CompressOptions(uWS::DEDICATED_COMPRESSOR | uWS::SHARED_DECOMPRESSOR),
         .maxPayloadLength = 100 * 1024 * 1024,
         .idleTimeout = 16,
         .maxBackpressure = 100 * 1024 * 1024,
@@ -36,7 +36,9 @@ int main() {
             /* This is the opposite of what you probably want; compress if message is LARGER than 16 kb
              * the reason we do the opposite here; compress if SMALLER than 16 kb is to allow for 
              * benchmarking of large message sending without compression */
-            ws->send(message, opCode, message.length() < 16 * 1024);
+
+             /* Never mind, it changed back to never compressing for now */
+            ws->send(message, opCode, false);
         },
         .dropped = [](auto */*ws*/, std::string_view /*message*/, uWS::OpCode /*opCode*/) {
             /* A message was dropped due to set maxBackpressure and closeOnBackpressureLimit limit */