done

examples/autoconfig.h

@@ -0,0 +1,22 @@
+#define CSP_POSIX 1
+#define CSP_ZEPHYR 0
+
+#define CSP_HAVE_STDIO 1
+#define CSP_ENABLE_CSP_PRINT 1
+#define CSP_PRINT_STDIO 1
+#define CSP_REPRODUCIBLE_BUILDS 0
+
+#define CSP_QFIFO_LEN 16
+#define CSP_PORT_MAX_BIND 16
+#define CSP_CONN_RXQUEUE_LEN 16
+#define CSP_CONN_MAX 8
+#define CSP_BUFFER_SIZE 256
+#define CSP_BUFFER_COUNT 15
+#define CSP_RDP_MAX_WINDOW 5
+#define CSP_RTABLE_SIZE 10
+#define CSP_USE_RDP 1
+#define CSP_USE_HMAC 1
+#define CSP_USE_PROMISC 1
+#define CSP_USE_RTABLE 0
+#define CSP_HAVE_LIBSOCKETCAN 0
+#define CSP_HAVE_LIBZMQ 0

examples/autoconfig.rs

@@ -1,7 +1,7 @@
-const CSP_CONN_RXQUEUE_LEN: usize = 16
-const CSP_QFIFO_LEN: usize = 16
-const CSP_PORT_MAX_BIND: usize = 16
-const CSP_CONN_MAX: usize = 8
-const CSP_BUFFER_SIZE: usize = 256
-const CSP_RDP_MAX_WINDOW: usize = 5
-const CSP_RTABLE_SIZE: usize = 10
+pub const CSP_CONN_RXQUEUE_LEN: usize = 16;
+pub const CSP_QFIFO_LEN: usize = 16;
+pub const CSP_PORT_MAX_BIND: usize = 16;
+pub const CSP_CONN_MAX: usize = 8;
+pub const CSP_BUFFER_SIZE: usize = 256;
+pub const CSP_RDP_MAX_WINDOW: usize = 5;
+pub const CSP_RTABLE_SIZE: usize = 10;

examples/build.rs

@@ -1,21 +1,20 @@
 use std::{env, path::PathBuf};
 
-use libcsp_cargo_build::Builder;
+use libcsp_cargo_build::{generate_autoconf_header_file, Builder};
 
 fn main() {
     let out_dir = env::var("OUT_DIR").unwrap_or_default();
     let manifest_dir = env::var("CARGO_MANIFEST_DIR").unwrap_or_default();
+    let manifest_path = PathBuf::from(&manifest_dir);
     let libcsp_path = "../lib/libcsp";
     let mut csp_builder = Builder::new(PathBuf::from(libcsp_path), PathBuf::from(&out_dir));
-    let update_autoconf = match env::var("UPDATE_CSP_AUTOCONF") {
-        Ok(update_autoconf) => update_autoconf == "1",
-        Err(_e) => false,
-    };
-    if update_autoconf {
-        csp_builder
-            .generate_autoconf_rust_file(PathBuf::from(&manifest_dir))
-            .expect("generating autoconfig.rs failed");
-        println!("cargo:warning=autoconfig.rs updated");
-    }
+    // We always re-generate the header file.
+    generate_autoconf_header_file(manifest_path.clone(), &csp_builder.cfg)
+        .expect("generating header file failed");
+    csp_builder
+        .generate_autoconf_rust_file(manifest_path)
+        .expect("generating autoconfig.rs failed");
     csp_builder.compile().expect("compiling libcsp failed");
+    // If we change the libcsp build configuration, we need to re-run the build.
+    println!("cargo::rerun-if-changed=build.rs");
 }