diff --git a/Gemfile b/Gemfile index 312a3c1..c6c34a8 100644 --- a/Gemfile +++ b/Gemfile @@ -10,6 +10,7 @@ gem 'helix-rails' gem "cash_flow_c", path: "./cash_flow_c/" gem 'cash_flow_rust_helix', path: 'crates/cash_flow_rust_helix' gem 'cash_flow_rust_rutie', path: 'crates/cash_flow_rust_rutie' +gem 'cash_flow_rust_magnus', path: 'crates/cash_flow_rust_magnus' gem 'ffi' # for cash_flow_rust_ffi gem 'fiddle' # for cash_flow_rust_ruru diff --git a/Gemfile.lock b/Gemfile.lock index 3f97ff0..b78687f 100644 --- a/Gemfile.lock +++ b/Gemfile.lock @@ -9,6 +9,12 @@ PATH cash_flow_rust_helix (1.0.0) helix_runtime (~> 0.7.5) +PATH + remote: crates/cash_flow_rust_magnus + specs: + cash_flow_rust_magnus (0.1.0) + rake (> 1) + PATH remote: crates/cash_flow_rust_rutie specs: @@ -149,6 +155,7 @@ DEPENDENCIES benchmark-ips cash_flow_c! cash_flow_rust_helix! + cash_flow_rust_magnus! cash_flow_rust_rutie! ffi fiddle diff --git a/benchmark.rb b/benchmark.rb index c5267c5..4400188 100644 --- a/benchmark.rb +++ b/benchmark.rb @@ -61,6 +61,13 @@ def cash_flow(cash_in, cash_out, reinvest_rate, term, year) x.report("rust rutie class") { RustRutie.cash_flow(10000.0, 800.0, 50.0, 30, 5) } + # ======================================== + # Rust using magnus class method + # ======================================== + require 'cash_flow_rust_magnus' + raise 'rust magnus class method fail' unless cash_flow(10000, 800, 50, 30, 5) == RustMagnus.cash_flow(10000, 800, 50, 30, 5) + + x.report("rust magnus class") { RustMagnus.cash_flow(10000, 800, 50, 30, 5) } # ==================================== # C using standard Ruby extension diff --git a/build-libs.sh b/build-libs.sh index 1233901..ea2fd72 100755 --- a/build-libs.sh +++ b/build-libs.sh @@ -22,3 +22,7 @@ bundle install --quiet cd $base_dir cd crates/cash_flow_rust_rutie bin/setup + +cd $base_dir +cd crates/cash_flow_rust_magnus +rake install diff --git a/crates/cash_flow_rust_magnus/Rakefile b/crates/cash_flow_rust_magnus/Rakefile new file mode 100644 index 0000000..87dcb18 --- /dev/null +++ b/crates/cash_flow_rust_magnus/Rakefile @@ -0,0 +1,11 @@ +# frozen_string_literal: true + +require "rake/testtask" +load File.expand_path("./ext/cash_flow_rust_magnus/Rakefile", __dir__) + +task default: :test + +Rake::TestTask.new do |t| + t.deps << :dev << :install + t.test_files = FileList[File.expand_path("test/*_test.rb", __dir__)] +end diff --git a/crates/cash_flow_rust_magnus/cash_flow_rust_magnus.gemspec b/crates/cash_flow_rust_magnus/cash_flow_rust_magnus.gemspec new file mode 100644 index 0000000..0e93e4b --- /dev/null +++ b/crates/cash_flow_rust_magnus/cash_flow_rust_magnus.gemspec @@ -0,0 +1,15 @@ +# frozen_string_literal: true + +Gem::Specification.new do |spec| + spec.name = "cash_flow_rust_magnus" + spec.version = "0.1.0" + spec.summary = "-" + spec.files = Dir["lib/**/*.rb"].concat(Dir["ext/cash_flow_rust_magnus/src/**/*.rs"]) << "ext/cash_flow_rust_magnus/Cargo.toml" << "ext/cash_flow_rust_magnus/Cargo.lock" << 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a/crates/cash_flow_rust_magnus/ext/cash_flow_rust_magnus/Rakefile b/crates/cash_flow_rust_magnus/ext/cash_flow_rust_magnus/Rakefile new file mode 100644 index 0000000..63529ef --- /dev/null +++ b/crates/cash_flow_rust_magnus/ext/cash_flow_rust_magnus/Rakefile @@ -0,0 +1,133 @@ +# frozen_string_literal: true + +require "shellwords" + +class RakeCargoHelper + attr_reader :gemname + + def initialize(gemname=File.basename(__dir__)) + @gemname = gemname + end + + def self.command?(name) + exts = ENV["PATHEXT"] ? ENV["PATHEXT"].split(";") : [""] + ENV["PATH"].split(File::PATH_SEPARATOR).any? do |path| + exts.any? do |ext| + exe = File.join(path, "#{name}#{ext}") + File.executable?(exe) && !File.directory?(exe) + end + end + end + + def self.rust_toolchain + str = `rustc --version --verbose` + info = str.lines.map {|l| l.chomp.split(/:\s+/, 2)}.drop(1).to_h + info["host"] + end + + def self.cargo_target_dir + return @cargo_target_dir if defined? @cargo_target_dir + + str = `cargo metadata --format-version 1 --offline --no-deps --quiet` + begin + require "json" + dir = JSON.parse(str)["target_directory"] + rescue LoadError # json is usually part of the stdlib, but just in case + /"target_directory"\s*:\s*"(?[^"]*)"/ =~ str + end + @cargo_target_dir = dir || "target" + end + + def self.dld_flags + map = {"-L" => "-L native=", "-l" => "-l", "-F" => "-l framework="} + map.default_proc = proc {|_, key| "-C link_arg=#{key}"} + Shellwords.split(RbConfig::CONFIG["DLDFLAGS"]).flat_map do |arg| + k, v = arg.split(/(?<=..)/, 2) + case k + when "-L" + [k, "native=#{v}"] + when "-l" + [k, v] + when "-F" + ["-l", "framework=#{v}"] + else + ["-C", "link_arg=#{k}#{v}"] + end + end + end + + def install_dir + File.expand_path(File.join("..", "..", "lib", gemname), __dir__) + end + + def rust_name + prefix = "lib" unless Gem.win_platform? + suffix = if RbConfig::CONFIG["target_os"] =~ /darwin/i + ".dylib" + elsif Gem.win_platform? + ".dll" + else + ".so" + end + "#{prefix}#{gemname}#{suffix}" + end + + def ruby_name + "#{gemname}.#{RbConfig::CONFIG["DLEXT"]}" + end + +end + +task default: [:install, :clean] + +desc "set dev mode for subsequent task, run like `rake dev install`" +task :dev do + @dev = true +end + +desc "build gem native extension and copy to lib" +task install: [:cd, :build] do + helper = RakeCargoHelper.new + profile_dir = @dev ? "debug" : "release" + source = File.join(RakeCargoHelper.cargo_target_dir, profile_dir, helper.rust_name) + dest = File.join(helper.install_dir, helper.ruby_name) + mkdir_p(helper.install_dir) + rm(dest) if File.exist?(dest) + cp(source, dest) +end + +desc "build gem native extension" +task build: [:cargo, :cd] do + sh "cargo", "rustc", *(["--locked", "--release"] unless @dev), "--", *RakeCargoHelper.dld_flags +end + +desc "clean up release build artifacts" +task clean: [:cargo, :cd] do + sh "cargo clean --release" +end + +desc "clean up build artifacts" +task clobber: [:cargo, :cd] do + sh "cargo clean" +end + +desc "check for cargo" +task :cargo do + raise <<-MSG unless RakeCargoHelper.command?("cargo") + + This gem requires a Rust compiler and the `cargo' build tool to build the + gem's native extension. See https://www.rust-lang.org/tools/install for + how to install Rust. `cargo' is usually part of the Rust installation. + MSG + + raise <<-MSG if Gem.win_platform? && RakeCargoHelper.rust_toolchain !~ /gnu/ + + Found Rust toolchain `#{RakeCargoHelper.rust_toolchain}' but the gem native + extension requires the gnu toolchain on Windows. + MSG +end + +# ensure task is running in the right dir +task :cd do + cd(__dir__) unless __dir__ == pwd +end diff --git a/crates/cash_flow_rust_magnus/ext/cash_flow_rust_magnus/src/lib.rs b/crates/cash_flow_rust_magnus/ext/cash_flow_rust_magnus/src/lib.rs new file mode 100644 index 0000000..04def60 --- /dev/null +++ b/crates/cash_flow_rust_magnus/ext/cash_flow_rust_magnus/src/lib.rs @@ -0,0 +1,16 @@ +use magnus::{define_module, function, prelude::*, Error}; + +fn cash_flow(cash_in: f64, cash_out: f64, reinvest_rate: f64, term: i32, year: i32) -> f64 { + let cash: f64 = cash_in - cash_out; + let reinvestment = 1.0 + (reinvest_rate / 100.0); + let power: i32 = term - year; + + cash * reinvestment.powi(power.into()) +} + +#[magnus::init] +fn init() -> Result<(), Error> { + let module = define_module("RustMagnus")?; + module.define_singleton_method("cash_flow", function!(cash_flow, 5))?; + Ok(()) +} diff --git a/crates/cash_flow_rust_magnus/lib/cash_flow_rust_magnus.rb b/crates/cash_flow_rust_magnus/lib/cash_flow_rust_magnus.rb new file mode 100644 index 0000000..68d639b --- /dev/null +++ b/crates/cash_flow_rust_magnus/lib/cash_flow_rust_magnus.rb @@ -0,0 +1 @@ +require "cash_flow_rust_magnus/cash_flow_rust_magnus" \ No newline at end of file