1 files changed, 20 insertions, 0 deletions
diff --git a/hal/shmem.c b/hal/shmem.c
new file mode 100644
index 0000000..3785c2e
--- /dev/null
+++ b/hal/shmem.c
@@ -0,0 +1,20 @@
+#include "api/error.h"
+#include "hal/obj.h"
+#include "lib/string.h"
+#include "memory.h"
+
+int 
+shmem_new(jove_owned_obj_t *untyped_obj)
+{
+    jove_untyped_t *untyped = obj_deref(untyped_obj);
+    if((uintptr_t)untyped & 0xFFF) return -EALIGN;
+    if(untyped->limit & 0xFFF) return -EBADSIZE;
+
+    size_t limit_pages = untyped->limit >> 12;
+    if(limit_pages > JOVE_SMHEM_MAXPAGES) return -ETOOBIG;
+
+    obj_setvalue(untyped_obj, (uintptr_t)untyped | limit_pages);
+    obj_settype(untyped_obj, JOVE_OBJ_SHMEMORY);
+    memset(untyped, 0, untyped->limit);
+    return 0;
+}