Implement InterlockedDecrement

LinusU · LinusU · commit 43df69ea3f05 · 2025-11-19T00:03:42.000+01:00
diff --git a/win32/dll/kernel32/src/sync/interlocked.rs b/win32/dll/kernel32/src/sync/interlocked.rs
@@ -9,5 +9,7 @@ pub fn InterlockedIncrement(sys: &dyn System, addend: Option<&mut u32>) -> u32 {
 
 #[win32_derive::dllexport]
 pub fn InterlockedDecrement(sys: &dyn System, addend: Option<&mut u32>) -> u32 {
-    todo!()
+    let addend = addend.unwrap();
+    *addend -= 1;
+    *addend
 }

Original file line number	Diff line number	Diff line change
`@@ -9,5 +9,7 @@ pub fn InterlockedIncrement(sys: &dyn System, addend: Option<&mut u32>) -> u32 {`
`9`	`9`
`10`	`10`	`#[win32_derive::dllexport]`
`11`	`11`	`pub fn InterlockedDecrement(sys: &dyn System, addend: Option<&mut u32>) -> u32 {`
`12`		`- todo!()`
	`12`	`+ let addend = addend.unwrap();`
	`13`	`+ *addend -= 1;`
	`14`	`+ *addend`
`13`	`15`	`}`