improve c library

examples/lang_c/.gitignore

@@ -0,0 +1,4 @@
+.idea
+out
+rust-target
+include

examples/lang_c/CMakeLists.txt

@@ -1,23 +0,0 @@
-cmake_minimum_required(VERSION 3.28)
-project(lang_c C)
-set(CMAKE_C_STANDARD 17)
-
-include(FetchContent)
-FetchContent_Declare(
-        Corrosion
-        GIT_REPOSITORY https://github.com/corrosion-rs/corrosion.git
-        GIT_TAG v0.5 # Optionally specify a commit hash, version tag or branch here
-)
-FetchContent_MakeAvailable(Corrosion)
-
-# Import targets defined in a package or workspace manifest `Cargo.toml` file
-corrosion_import_crate(
-        MANIFEST_PATH ../../servicepoint2/Cargo.toml
-        PROFILE release
-        FEATURES c-api
-        ALL_FEATURES)
-
-add_executable(lang_c main.c)
-
-target_link_libraries(lang_c PRIVATE servicepoint2)
-

examples/lang_c/Makefile

@@ -0,0 +1,23 @@
+ROOT_DIR := $(dir $(realpath $(lastword $(MAKEFILE_LIST))))
+RUST_TARGET_DIR := ${ROOT_DIR}rust-target
+export SP2_INCLUDE_DIR := ${ROOT_DIR}sp2
+OUT_DIR := ${ROOT_DIR}out
+
+.PHONY: clean
+
+run: ${OUT_DIR}/lang_c
+	out/lang_c
+
+all: ${OUT_DIR}/lang_c
+
+${OUT_DIR}/lang_c: ${SP2_INCLUDE_DIR}/sp2-bindings.h main.c
+	mkdir -p ${OUT_DIR}
+	gcc ${SP2_INCLUDE_DIR}/sp2-bindings.h main.c -L ${RUST_TARGET_DIR}/release/ -Wl,-Bstatic -l servicepoint2 -Wl,-Bdynamic  -o ${OUT_DIR}/lang_c --verbose
+
+${SP2_INCLUDE_DIR}/sp2-bindings.h:
+	cd ../../servicepoint2/ && cargo build --release --target-dir ${RUST_TARGET_DIR} --all-features
+
+clean:
+	rm -r ${SP2_INCLUDE_DIR} || true
+	rm -r ${OUT_DIR} || true
+	rm -r ${RUST_TARGET_DIR} || true

examples/lang_c/main.c

@@ -1,5 +1,5 @@
 #include <stdio.h>
-#include "../../servicepoint2/sp2-bindings.h"
+#include "sp2/sp2-bindings.h"
 
 int main(void) {
     sp2_Connection *connection = sp2_connection_open("localhost:2342");