Refactor to use ffi

.commit/config.yml

@@ -53,4 +53,6 @@ ruby:
         spec.files = Dir["CHANGELOG.md", "README.md", "LICENSE", "lib/**/*"]
         spec.require_path = "lib"
 
-        spec.extensions = %w[ext/llhttp/extconf.rb]
+        spec.extensions = %w[ext/Rakefile]
+
+        spec.add_dependency "ffi-compiler", "~> 1.0"

LICENSE

@@ -1,6 +1,6 @@
 This software is licensed under the MIT License.
 
-Copyright 2020 Metabahn.
+Copyright 2020-2021 Metabahn.
 
 Permission is hereby granted, free of charge, to any person obtaining a
 copy of this software and associated documentation files (the

Rakefile

@@ -1,11 +1,9 @@
 # frozen_string_literal: true
 
 require "fileutils"
-require "rake/extensiontask"
 
-Rake::ExtensionTask.new "llhttp_ext" do |ext|
-  ext.ext_dir = "ext/llhttp"
-  ext.lib_dir = "lib/llhttp"
+task :compile do
+  system "cd ext && bundle exec rake"
 end
 
 task test: :compile do

benchmarks/ffi/Gemfile

@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+
+source "https://rubygems.org"
+
+gem "llhttp", path: "../.."
+
+gem "benchmark-ips"
+gem "ruby-prof"

benchmarks/ffi/run.rb

@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+require_relative "../shared"
+
+benchmark
+
+# require "ruby-prof"
+
+# delegate = LLHttp::Delegate.new
+# instance = LLHttp::Parser.new(delegate, type: :request)
+
+# result = RubyProf.profile {
+#   1_000_000.times do
+#     parse(instance)
+#     instance.finish
+#   end
+# }
+
+# printer = RubyProf::GraphPrinter.new(result)
+# printer.print(STDOUT, {})

benchmarks/mri/Gemfile

@@ -0,0 +1,6 @@
+# frozen_string_literal: true
+
+source "https://rubygems.org"
+
+gem "benchmark-ips"
+gem "llhttp"

benchmarks/mri/run.rb

@@ -0,0 +1,5 @@
+# frozen_string_literal: true
+
+require_relative "../shared"
+
+benchmark

benchmarks/shared.rb

@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+require "benchmark/ips"
+require "llhttp"
+
+def parse(instance)
+  instance << "GET / HTTP/1.1\r\n"
+  instance << "content-length: 18\r\n"
+  instance << "\r\n"
+  instance << "body1\n"
+  instance << "body2\n"
+  instance << "body3\n"
+  instance << "\r\n"
+end
+
+def benchmark
+  delegate = LLHttp::Delegate.new
+  instance = LLHttp::Parser.new(delegate, type: :request)
+
+  Benchmark.ips do |x|
+    x.report do
+      parse(instance)
+      instance.finish
+    end
+  end
+end

ext/Rakefile

@@ -0,0 +1,5 @@
+# frozen_string_literal: true
+
+require "ffi-compiler/compile_task"
+
+FFI::Compiler::CompileTask.new("llhttp-ext")