2 files changed, 12 insertions, 3 deletions
diff --git a/source/kit/shared_memory.win32.c b/source/kit/shared_memory.win32.c
index c6cc3d3..5b5c1b0 100644
--- a/source/kit/shared_memory.win32.c
+++ b/source/kit/shared_memory.win32.c
@@ -69,7 +69,13 @@ kit_shared_memory_t kit_shared_memory_open(kit_str_t name, i64 size,
 kit_status_t kit_shared_memory_close(kit_shared_memory_t *mem) {
   assert(mem != NULL);
 
-  UnmapViewOfFile(mem->bytes);
-  CloseHandle(mem->_handle);
+  i32 status = KIT_OK;
+
+  if (!UnmapViewOfFile(mem->bytes))
+    status |= KIT_ERROR_MUNMAP_FAILED;
+  if (!CloseHandle(mem->_handle))
+    status |= KIT_ERROR_UNLINK_FAILED;
+
+  return status;
 }
 #endif
diff --git a/source/tests/test_interprocess.c b/source/tests/test_interprocess.c
index 58044bf..5afc0c8 100644
--- a/source/tests/test_interprocess.c
+++ b/source/tests/test_interprocess.c
@@ -25,7 +25,10 @@ int run_writer() {
 
   while (mem.bytes[0] != STATE_DONE) thrd_yield();
 
-  return kit_shared_memory_close(&mem);
+  if (kit_shared_memory_close(&mem) != KIT_OK)
+    return 1;
+
+  return 0;
 }
 
 int run_reader() {