.

1 files changed, 41 insertions, 0 deletions

diff --git a/core_c/src/lib.rs b/core_c/src/lib.rs
index e69de29..bdeb7ef 100644
--- a/core_c/src/lib.rs
+++ b/core_c/src/lib.rs
@@ -0,0 +1,41 @@
+use std::ffi::{c_char, CStr, CString};
+
+pub mod data_c;
+pub mod service_c;
+
+pub fn string_to_c_char_safe(s: String) -> (CString, *const c_char) {
+    let c_string = CString::new(s).expect("");
+    let ptr = c_string.as_ptr();
+    (c_string, ptr)
+}
+
+pub fn c_char_to_string_safe(ptr: *const c_char) -> Option<String> {
+    if ptr.is_null() {
+        return None;
+    }
+    unsafe {
+        CStr::from_ptr(ptr)
+            .to_str()
+            .ok()
+            .map(|s| s.to_owned())
+    }
+}
+
+#[macro_export]
+macro_rules! box_into_raw {
+    ($expr:expr) => {
+        $crate::box_into_raw!(@inner $expr)
+    };
+
+    ($expr:expr => $t:ty) => {
+        $crate::box_into_raw!(@inner ($expr) as $t)
+    };
+
+    (@inner $expr:expr) => {
+        ::std::boxed::Box::into_raw(::std::boxed::Box::new($expr))
+    };
+
+    (@inner ($expr:expr) as $t:ty) => {
+        ::std::boxed::Box::into_raw(::std::boxed::Box::new($expr) as ::std::boxed::Box<$t>)
+    };
+}
\ No newline at end of file