From a1604f49f04aeaa5eb526da65cfbd7e807f53ea2 Mon Sep 17 00:00:00 2001
From: Bradlee Speice <bradlee@speice.io>
Date: Thu, 19 Sep 2019 22:02:14 -0400
Subject: [PATCH] Initial version allows for tests that actually run!

---
 .gitignore |  2 ++
 Cargo.toml | 13 +++++++++---
 bindings.h |  2 ++
 build.rs   | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 src/lib.rs | 16 ++++++++++++--
 5 files changed, 90 insertions(+), 5 deletions(-)
 create mode 100644 bindings.h
 create mode 100644 build.rs

diff --git a/.gitignore b/.gitignore
index 6936990..f8d06a7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
 /target
 **/*.rs.bk
 Cargo.lock
+
+.idea/
diff --git a/Cargo.toml b/Cargo.toml
index 090c85e..e2841e4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,9 +1,16 @@
 [package]
-name = "aeron-driver-sys"
-version = "0.1.0"
+name = "libaeron_driver-sys"
+version = "0.1.0+1.21.2"
 authors = ["Bradlee Speice <bradlee@speice.io>"]
 edition = "2018"
-links = "aeron-driver"
+links = "aeron_driver"
 build = "build.rs"
 
 [dependencies]
+
+[build-dependencies]
+bindgen = "0.51"
+cmake = "0.1"
+
+[features]
+static = []
diff --git a/bindings.h b/bindings.h
new file mode 100644
index 0000000..f9b4222
--- /dev/null
+++ b/bindings.h
@@ -0,0 +1,2 @@
+#include <stddef.h>
+#include <aeronmd.h>
diff --git a/build.rs b/build.rs
new file mode 100644
index 0000000..8f3a5ae
--- /dev/null
+++ b/build.rs
@@ -0,0 +1,62 @@
+use cmake::Config;
+
+use std::env;
+use std::path::{Path, PathBuf};
+use std::fs::canonicalize;
+
+pub enum LinkType {
+    Dynamic,
+    Static
+}
+
+impl LinkType {
+    fn detect() -> LinkType {
+        if cfg!(feature = "static") {
+            LinkType::Static
+        } else {
+            LinkType::Dynamic
+        }
+    }
+
+    fn link_lib(&self) -> &'static str {
+        match self {
+            LinkType::Dynamic => "dylib=",
+            LinkType::Static => "static="
+        }
+    }
+
+    fn target_name(&self) -> &'static str {
+        match self {
+            LinkType::Dynamic => "aeron_driver",
+            LinkType::Static => "aeron_driver_static"
+        }
+    }
+}
+
+pub fn main() {
+    println!("cargo:rerun-if-changed=build.rs");
+    println!("cargo:rerun-if-changed=bindings.h");
+
+    let aeron_path = canonicalize(Path::new("./aeron")).unwrap();
+    let header_path = aeron_path.join("aeron-driver/src/main/c");
+    let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
+
+    let link_type = LinkType::detect();
+    println!("cargo:rustc-link-lib={}{}", link_type.link_lib(), link_type.target_name());
+    let lib_dir = Config::new(&aeron_path)
+        .build_target(link_type.target_name())
+        .build();
+    println!("cargo:rustc-link-search=native={}", lib_dir.join("build/lib").display());
+
+    println!("cargo:include={}", header_path.display());
+    let bindings = bindgen::Builder::default()
+        .clang_arg(&format!("-I{}", header_path.display()))
+        .header("bindings.h")
+        .whitelist_function("aeron_version_.*")
+        .generate()
+        .expect("Unable to generate aeron_driver bindings");
+
+    bindings
+        .write_to_file(out_path.join("bindings.rs"))
+        .expect("Couldn't write bindings!");
+}
\ No newline at end of file
diff --git a/src/lib.rs b/src/lib.rs
index 31e1bb2..ebb1484 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,7 +1,19 @@
+#![allow(non_upper_case_globals)]
+#![allow(non_camel_case_types)]
+#![allow(non_snake_case)]
+
+include!(concat!(env!("OUT_DIR"), "/bindings.rs"));
+
 #[cfg(test)]
 mod tests {
+
     #[test]
-    fn it_works() {
-        assert_eq!(2 + 2, 4);
+    fn version_check() {
+        let major = unsafe { crate::aeron_version_major() };
+        let minor = unsafe { crate::aeron_version_minor() };
+        let patch = unsafe { crate::aeron_version_patch() };
+        assert_eq!(major, 1);
+        assert_eq!(minor, 21);
+        assert_eq!(patch, 2);
     }
 }