add docs for syscalls. make syscall code kind-of cleaner

1 files changed, 18 insertions, 0 deletions

diff --git a/sys/lockstack.h b/sys/lockstack.h
new file mode 100644
index 0000000..f41f9dc
--- /dev/null
+++ b/sys/lockstack.h
@@ -0,0 +1,18 @@
+#ifndef _JOVE_SYS_LOCKSTACK_H
+#define _JOVE_SYS_LOCKSTACK_H 1
+
+#include <stddef.h>
+#include "hal/obj.h"
+#include "config.h"
+
+typedef struct lockstack
+{
+    size_t depth;
+    jove_owned_obj_t *stack[LOCKSTACK_MAX];
+} lockstack_t;
+
+jove_owned_obj_t *lockstack_push(lockstack_t *stack, jove_owned_obj_t *obj);
+jove_obj_t *lockstack_pop(lockstack_t *stack);
+void lockstack_popall(lockstack_t *stack);
+
+#endif