+/** @file snapshotimp.h
+ * @brief Snapshotting implementation header file..
+ */
+
#ifndef _SNAPSHOTIMP_H
#define _SNAPSHOTIMP_H
#include "snapshot.h"
#include <sys/mman.h>
#include <sys/types.h>
#include <csignal>
-#define SHARED_MEMORY_DEFAULT ( 100 * ( 1 << 20 ) ) // 100mb for the shared memory
-#define STACK_SIZE_DEFAULT ( ( 1 << 20 ) * 20 ) //20 mb out of the above 100 mb for my stack.
+#define SHARED_MEMORY_DEFAULT (100 * ((size_t)1 << 20)) // 100mb for the shared memory
+#define STACK_SIZE_DEFAULT (((size_t)1 << 20) * 20) // 20 mb out of the above 100 mb for my stack
-#if USE_CHECKPOINTING
+#if USE_MPROTECT_SNAPSHOT
//Each snapshotrecord lists the firstbackingpage that must be written to revert to that snapshot
struct SnapShotRecord {
unsigned int firstBackingPage;
//Global reference to snapshot data structure
extern struct SnapShot * snapshotrecord;
-void * ReturnPageAlignedAddress( void *);
-void * PageAlignAddressUpward( void *);
#else
-struct Snapshot_t{
-char *mSharedMemoryBase;
-char *mStackBase;
+struct Snapshot {
+void *mSharedMemoryBase;
+void *mStackBase;
size_t mStackSize;
snapshot_id mIDToRollback;
ucontext_t mContextToRollback;
snapshot_id currSnapShotID;
-#if SSDEBUG
-struct timeval startTimeGlobal;
-#endif
volatile bool mbFinalize;
};
-extern struct Snapshot_t * sTheRecord;
+extern struct Snapshot * sTheRecord;
#endif
#endif