added iot edge support (#7)

* added iot edge support

Author: JanZachmann

.gitignore

@@ -1,2 +1,3 @@
 /target
 Cargo.lock
+.vscode/launch.json

CHANGELOG.md

@@ -5,6 +5,9 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.3.0] Q2 2022
+ - added iot edge support
+
 ## [0.2.3] Q1 2022
  - removed conanfile.txt and instead provide pre-built-libs in release
  - improve documentation for building the crate

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "azure-iot-sdk-sys"
-version = "0.2.3"
+version = "0.3.0"
 edition = "2021"
 authors = ["Joerg Zeidler <[email protected]>", "Jan Zachmann <[email protected]>"]
 build = "build.rs"
@@ -10,6 +10,11 @@ repository = "https://github.com/ICS-DeviceManagement/azure-iot-sdk-sys"
 
 [dependencies]
 
+[features]
+# select "default = ["edge_modules"]" for building crate with iotedge module support
+default = []
+edge_modules = []
+
 [build-dependencies]
 bindgen = "0.59.1"
 glob = "0.3.0"

README.md

@@ -20,6 +20,11 @@ You're free to build your own versions of libraries for the target platform of y
 
 For your convenience we provide for x86_64 a bundle of libraries, created on Ubuntu 20.04lts, as part of our github release. Please find the library archive [here](https://github.com/ICS-DeviceManagement/azure-iot-sdk-sys/releases/latest) 
 
+## Enable iot edge support
+
+In order to build `azure-iot-sdk-sys` with iot edge module API's enabled you have to set `edge_modules` cargo feature. This builds bindings with `"-DUSE_EDGE_MODULES"` option.<br>
+**Note: `azure-iot-sdk-c` also must have been built with `"-DUSE_EDGE_MODULES"` option!**
+
 # License
 
 Licensed under either of

build.rs

@@ -22,7 +22,7 @@ fn path_handling(env: &str) -> String {
         index += 1;
     }
 
-    if path_lib.len() == 0{
+    if path_lib.len() == 0 {
         panic!("No paths found for {:?}", env);
     }
 
@@ -34,6 +34,7 @@ fn path_handling(env: &str) -> String {
 }
 
 fn main() {
+    let mut iotedge = "";
     let path_lib_azuresdk = path_handling("LIB_PATH_AZURESDK");
     let path_lib_uuid = path_handling("LIB_PATH_UUID");
     let path_lib_openssl = path_handling("LIB_PATH_OPENSSL");
@@ -58,10 +59,18 @@ fn main() {
     );
 
     // Tell cargo to tell rustc to link the azure iot-sdk libraries.
+    // Order of libraries matters!
     println!("cargo:rustc-link-lib=iothub_client_mqtt_transport");
     println!("cargo:rustc-link-lib=iothub_client");
     println!("cargo:rustc-link-lib=parson");
     println!("cargo:rustc-link-lib=umqtt");
+
+    if env::var("CARGO_FEATURE_EDGE_MODULES").is_ok() {
+        iotedge = "-DUSE_EDGE_MODULES";
+        println!("cargo:rustc-link-lib=prov_auth_client");
+        println!("cargo:rustc-link-lib=hsm_security_client");
+    }
+
     println!("cargo:rustc-link-lib=uhttp");
     println!("cargo:rustc-link-lib=aziotsharedutil");
     println!("cargo:rustc-link-lib=curl");
@@ -71,6 +80,12 @@ fn main() {
 
     // Tell cargo to invalidate the built crate whenever the wrapper changes
     println!("cargo:rerun-if-changed=wrapper.h");
+    println!("cargo:rerun-if-changed=build.rs");
+    println!("cargo:rerun-if-env-changed=CARGO_FEATURE_EDGE_MODULES");
+    println!("cargo:rerun-if-env-changed=LIB_PATH_AZURESDK");
+    println!("cargo:rerun-if-env-changed=LIB_PATH_UUID");
+    println!("cargo:rerun-if-env-changed=LIB_PATH_CURL");
+    println!("cargo:rerun-if-env-changed=LIB_PATH_OPENSSL");
 
     // The bindgen::Builder is the main entry point
     // to bindgen, and lets you build up options for
@@ -80,6 +95,7 @@ fn main() {
         // bindings for.
         .header("wrapper.h")
         // additional clang arguments.
+        .clang_arg(iotedge)
         .clang_arg(format!("-I{}/include", path_lib_azuresdk.to_string()))
         .clang_arg(format!(
             "-I{}/include/azureiot",