RustPython
diff --git a/‎Cargo.lock
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+3-2Lines changed: 3 additions & 2 deletions b/‎Cargo.lock
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+3-2Lines changed: 3 additions & 2 deletions
diff --git a/‎vm/Cargo.toml
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+1Lines changed: 1 addition & 0 deletions b/‎vm/Cargo.toml
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diff --git a/‎vm/src/stdlib/ctypes.rs
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+34Lines changed: 34 additions & 0 deletions b/‎vm/src/stdlib/ctypes.rs
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+34Lines changed: 34 additions & 0 deletions
diff --git a/‎vm/src/stdlib/mod.rs
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+6Lines changed: 6 additions & 0 deletions b/‎vm/src/stdlib/mod.rs
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+6Lines changed: 6 additions & 0 deletions
@@ -99,6 +99,7 @@ uname = "0.1.1"
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 rustyline = { workspace = true }
 which = "6"
+errno = "0.3"
 
 [target.'cfg(any(not(target_arch = "wasm32"), target_os = "wasi"))'.dependencies]
 num_cpus = "1.13.1"
 
@@ -0,0 +1,34 @@
+pub(crate) use _ctypes::make_module;
+
+#[pymodule]
+mod _ctypes {
+    use crate::{common::lock::PyRwLock, PyObjectRef};
+    use crossbeam_utils::atomic::AtomicCell;
+
+    pub struct RawBuffer {
+        #[allow(dead_code)]
+        pub inner: Box<[u8]>,
+        #[allow(dead_code)]
+        pub size: usize,
+    }
+
+    #[pyattr]
+    #[pyclass(name = "_CData")]
+    pub struct PyCData {
+        _objects: AtomicCell<Vec<PyObjectRef>>,
+        _buffer: PyRwLock<RawBuffer>,
+    }
+
+    #[pyclass]
+    impl PyCData {}
+
+    #[pyfunction]
+    fn get_errno() -> i32 {
+        errno::errno().0
+    }
+
+    #[pyfunction]
+    fn set_errno(value: i32) {
+        errno::set_errno(errno::Errno(value));
+    }
+}
@@ -37,6 +37,8 @@ pub mod posix;
 #[path = "posix_compat.rs"]
 pub mod posix;
 
+#[cfg(any(target_family = "unix", target_family = "windows"))]
+mod ctypes;
 #[cfg(windows)]
 pub(crate) mod msvcrt;
 #[cfg(all(unix, not(any(target_os = "android", target_os = "redox"))))]
@@ -124,5 +126,9 @@ pub fn get_module_inits() -> StdlibMap {
             "_winapi" => winapi::make_module,
             "winreg" => winreg::make_module,
         }
+        #[cfg(any(target_family = "unix", target_family = "windows"))]
+        {
+            "_ctypes" => ctypes::make_module,
+        }
     }
 }
Original file line number	Diff line number	Diff line change
`@@ -37,6 +37,8 @@ pub mod posix;`
`37`	`37`	`#[path = "posix_compat.rs"]`
`38`	`38`	`pub mod posix;`
`39`	`39`
	`40`	`+#[cfg(any(target_family = "unix", target_family = "windows"))]`
	`41`	`+mod ctypes;`
`40`	`42`	`#[cfg(windows)]`
`41`	`43`	`pub(crate) mod msvcrt;`
`42`	`44`	`#[cfg(all(unix, not(any(target_os = "android", target_os = "redox"))))]`
`@@ -124,5 +126,9 @@ pub fn get_module_inits() -> StdlibMap {`
`124`	`126`	`"_winapi" => winapi::make_module,`
`125`	`127`	`"winreg" => winreg::make_module,`
`126`	`128`	`}`
	`129`	`+ #[cfg(any(target_family = "unix", target_family = "windows"))]`
	`130`	`+ {`
	`131`	`+ "_ctypes" => ctypes::make_module,`
	`132`	`+ }`
`127`	`133`	`}`
`128`	`134`	`}`