Move to mimalloc for rust. (#10)

.gitignore

@@ -11,3 +11,8 @@
 # csharp
 /bin
 /obj
+
+
+# Added by cargo
+
+/target

build-rs.sh

@@ -1,6 +1,9 @@
 #!/usr/bin/env sh
 
 mkdir -p build/rust
-rustc -O -o build/rust/almost_pseudo_random src/main/rust/almost_pseudo_random.rs
-rustc -O -o build/rust/rust_safer src/main/rust/rust_safer.rs
-rustc -O -o build/rust/rust_raw src/main/rust/rust_raw.rs
+cargo build --release --manifest-path src/main/rust/Cargo.toml
+find src/main/rust/target/release \
+  -maxdepth 1 \
+  -executable \
+  -type f \
+  -exec cp -f {} build/rust \;

src/main/c/almost_pseudo_random.c

@@ -1,5 +1,6 @@
 /*
  * Copyright 2021  Kazimierz Pogoda
+ * Copyright 2021  Sam Leonard
  *
  * This file is part of java-2-times-faster-than-c.
  *
@@ -26,10 +27,12 @@ double almost_pseudo_random(long ordinal) {
   return fmod(sin(((double) ordinal) * 100000.0) + 1.0, 1.0);
 }
 
-void main() {
+int main() {
   double checksum = 0;
   for (long i = 0; i < ITERATION_COUNT; i++) {
     checksum += almost_pseudo_random(i);
   }
   printf("checksum: %f\n", checksum);
+
+	return 0;
 }

src/main/rust/.gitignore

@@ -0,0 +1,2 @@
+target
+Cargo.lock

src/main/rust/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "rust"
+version = "0.1.0"
+authors = ["Sam <[email protected]>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+# compile mimalloc for speed not security
+mimalloc = { version = "~0.1.24", default-features = false }

src/main/rust/rust_raw.rs → src/main/rust/src/bin/rust_raw.rs

@@ -19,6 +19,11 @@
 
 use std::ptr;
 
+use mimalloc::MiMalloc;
+
+#[global_allocator]
+static GLOBAL: MiMalloc = MiMalloc;
+
 const MAX_PAYLOAD_SIZE: i32   = 50;
 const INITIAL_NODE_COUNT: i32 = 10000;
 const MUTATION_COUNT: i64     = 1000000;

src/main/rust/rust_safer.rs → src/main/rust/src/bin/rust_safer.rs

@@ -19,6 +19,11 @@
 
 use std::ptr;
 
+use mimalloc::MiMalloc;
+
+#[global_allocator]
+static GLOBAL: MiMalloc = MiMalloc;
+
 const MAX_PAYLOAD_SIZE: i32   = 50;
 const INITIAL_NODE_COUNT: i32 = 10000;
 const MUTATION_COUNT: i64     = 1000000;