+/**
+ * @file snapshot-interface.h
+ * @brief C interface layer on top of snapshotting system
+ */
+
#ifndef __SNAPINTERFACE_H
#define __SNAPINTERFACE_H
-#include "snapshot.h"
-#include "mymemory.h"
-#include "snapshot.h"
-
-void SnapshotGlobalSegments();
-
-struct stackEntry {
- struct stackEntry *next;
- snapshot_id snapshotid;
- int index;
-};
+#include <ucontext.h>
-class snapshotStack {
- public:
- MEMALLOC
- snapshotStack( );
- ~snapshotStack();
- int backTrackBeforeStep(int seq_index);
- void snapshotStep(int seq_index);
+typedef unsigned int snapshot_id;
+typedef void (*VoidFuncPtr)();
- private:
- struct stackEntry * stack;
-};
+void snapshot_system_init(unsigned int numbackingpages,
+ unsigned int numsnapshots, unsigned int nummemoryregions,
+ unsigned int numheappages);
+void startExecution();
+snapshot_id take_snapshot();
+void snapshot_roll_back(snapshot_id theSnapShot);
-/* Not sure what it even means to have more than one snapshot object,
- so let's just make a global reference to it.*/
-extern snapshotStack * snapshotObject;
#endif