X-Git-Url: http://git.bitcoin.ninja/index.cgi?p=ldk-c-bindings;a=blobdiff_plain;f=lightning-c-bindings%2Fsrc%2Fc_types%2Fmod.rs;h=472d4d0d15482e30c031720f0ee4de708d53daef;hp=274981da8e02a22c3a7dc24e7e61aba72ea9e5f5;hb=dd5bf474af6c806b20c26f4f2b751f3226a94dfd;hpb=fea3e0caec33c4828824f4491636c891b8a74aa5

diff --git a/lightning-c-bindings/src/c_types/mod.rs b/lightning-c-bindings/src/c_types/mod.rs
index 274981d..472d4d0 100644
--- a/lightning-c-bindings/src/c_types/mod.rs
+++ b/lightning-c-bindings/src/c_types/mod.rs
@@ -14,7 +14,7 @@ use bitcoin::secp256k1::recovery::RecoverableSignature as SecpRecoverableSignatu
 use bitcoin::bech32;
 
 use std::convert::TryInto; // Bindings need at least rustc 1.34
-
+use core::ffi::c_void;
 use std::io::{Cursor, Read}; // TODO: We should use core2 here when we support no_std
 
 #[repr(C)]
@@ -404,8 +404,8 @@ pub struct ThreeBytes { /** The three bytes */ pub data: [u8; 3], }
 pub struct FourBytes { /** The four bytes */ pub data: [u8; 4], }
 #[derive(Clone)]
 #[repr(C)]
-/// A 10-byte byte array.
-pub struct TenBytes { /** The ten bytes */ pub data: [u8; 10], }
+/// A 12-byte byte array.
+pub struct TwelveBytes { /** The twelve bytes */ pub data: [u8; 12], }
 #[derive(Clone)]
 #[repr(C)]
 /// A 16-byte byte array.
@@ -430,6 +430,9 @@ pub(crate) fn serialize_obj<I: lightning::util::ser::Writeable>(i: &I) -> derive
 pub(crate) fn deserialize_obj<I: lightning::util::ser::Readable>(s: u8slice) -> Result<I, lightning::ln::msgs::DecodeError> {
 	I::read(&mut s.to_slice())
 }
+pub(crate) fn maybe_deserialize_obj<I: lightning::util::ser::MaybeReadable>(s: u8slice) -> Result<Option<I>, lightning::ln::msgs::DecodeError> {
+	I::read(&mut s.to_slice())
+}
 pub(crate) fn deserialize_obj_arg<A, I: lightning::util::ser::ReadableArgs<A>>(s: u8slice, args: A) -> Result<I, lightning::ln::msgs::DecodeError> {
 	I::read(&mut s.to_slice(), args)
 }
@@ -450,6 +453,13 @@ impl Into<Str> for &'static str {
 		Str { chars: self.as_ptr(), len: self.len(), chars_is_owned: false }
 	}
 }
+impl Into<Str> for &mut &'static str {
+	fn into(self) -> Str {
+		let us: &'static str = *self;
+		us.into()
+	}
+}
+
 impl Str {
 	pub(crate) fn into_str(&self) -> &'static str {
 		if self.len == 0 { return ""; }
@@ -607,3 +617,40 @@ pub(crate) mod ObjOps {
 		}
 	}
 }
+
+#[cfg(test_mod_pointers)]
+#[no_mangle]
+/// This function exists for memory safety testing purposes. It should never be used in production
+/// code
+pub extern "C" fn __unmangle_inner_ptr(ptr: *const c_void) -> *const c_void {
+	if ptr as usize == 1 {
+		core::ptr::null()
+	} else {
+		unsafe { ptr.cast::<u8>().sub(4096).cast::<c_void>() }
+	}
+}
+
+pub(crate) struct SmartPtr<T> {
+	ptr: *mut T,
+}
+impl<T> SmartPtr<T> {
+	pub(crate) fn from_obj(o: T) -> Self {
+		Self { ptr: Box::into_raw(Box::new(o)) }
+	}
+	pub(crate) fn null() -> Self {
+		Self { ptr: std::ptr::null_mut() }
+	}
+}
+impl<T> Drop for SmartPtr<T> {
+	fn drop(&mut self) {
+		if self.ptr != std::ptr::null_mut() {
+			unsafe { Box::from_raw(self.ptr); }
+		}
+	}
+}
+impl<T> std::ops::Deref for SmartPtr<T> {
+	type Target = *mut T;
+	fn deref(&self) -> &*mut T {
+		&self.ptr
+	}
+}