nodestack: improve bounds-checking assertion

[model-checker.git] / snapshotimp.h

diff --git a/snapshotimp.h b/snapshotimp.h
index 8d935f238b81e3d43cf5ea1d7fdac07f583bc470..2e4929d0477e4605cd5363fb86266cd054d1f3fe 100644 (file)
--- a/snapshotimp.h
+++ b/snapshotimp.h
@@ -1,3 +1,7 @@
+/** @file snapshotimp.h
+ *     @brief Snapshotting implementation header file..
+ */
+
 #ifndef _SNAPSHOTIMP_H
 #define _SNAPSHOTIMP_H
 #include "snapshot.h"
@@ -7,62 +11,59 @@
 #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_MPROTECT_SNAPSHOT
 //Each snapshotrecord lists the firstbackingpage that must be written to revert to that snapshot
 struct SnapShotRecord {
-  unsigned int firstBackingPage;
+       unsigned int firstBackingPage;
 };
 
 //Backing store page struct
 struct SnapShotPage {
-  char data[PAGESIZE];
+       char data[PAGESIZE];
 };
 
 //List the base address of the corresponding page in the backing store so we know where to copy it to
 struct BackingPageRecord {
-  void * basePtrOfPage;
+       void * basePtrOfPage;
 };
 
 //Stuct for each memory region
 struct MemoryRegion {
-  void * basePtr; //base of memory region
-  int sizeInPages; //size of memory region in pages
+       void * basePtr; //base of memory region
+       int sizeInPages; //size of memory region in pages
 };
 
 //Primary struct for snapshotting system....
 struct SnapShot {
-  struct MemoryRegion * regionsToSnapShot; //This pointer references an array of memory regions to snapshot
-  struct SnapShotPage * backingStore; //This pointer references an array of snapshotpage's that form the backing store
-  void * backingStoreBasePtr; //This pointer references an array of snapshotpage's that form the backing store
-  struct BackingPageRecord * backingRecords; //This pointer references an array of backingpagerecord's (same number of elements as backingstore
-  struct SnapShotRecord * snapShots; //This pointer references the snapshot array
-  
-  unsigned int lastSnapShot; //Stores the next snapshot record we should use
-  unsigned int lastBackingPage; //Stores the next backingpage we should use
-  unsigned int lastRegion; //Stores the next memory region to be used
+       struct MemoryRegion * regionsToSnapShot; //This pointer references an array of memory regions to snapshot
+       struct SnapShotPage * backingStore; //This pointer references an array of snapshotpage's that form the backing store
+       void * backingStoreBasePtr; //This pointer references an array of snapshotpage's that form the backing store
+       struct BackingPageRecord * backingRecords; //This pointer references an array of backingpagerecord's (same number of elements as backingstore
+       struct SnapShotRecord * snapShots; //This pointer references the snapshot array
+
+       unsigned int lastSnapShot; //Stores the next snapshot record we should use
+       unsigned int lastBackingPage; //Stores the next backingpage we should use
+       unsigned int lastRegion; //Stores the next memory region to be used
 
-  unsigned int maxRegions; //Stores the max number of memory regions we support
-  unsigned int maxBackingPages; //Stores the total number of backing pages
-  unsigned int maxSnapShots; //Stores the total number of snapshots we allow
+       unsigned int maxRegions; //Stores the max number of memory regions we support
+       unsigned int maxBackingPages; //Stores the total number of backing pages
+       unsigned int maxSnapShots; //Stores the total number of snapshots we allow
 };
 
-//Global reference to snapshot data structure
-extern struct SnapShot * snapshotrecord;
-void * ReturnPageAlignedAddress( void *);
-void * PageAlignAddressUpward( void *);
 #else
-struct Snapshot_t{
-char *mSharedMemoryBase;
-char *mStackBase;
-size_t mStackSize;
-snapshot_id mIDToRollback;
-ucontext_t mContextToRollback;
-snapshot_id currSnapShotID;
-volatile bool mbFinalize;
+struct SnapShot {
+       void *mSharedMemoryBase;
+       void *mStackBase;
+       size_t mStackSize;
+       volatile snapshot_id mIDToRollback;
+       ucontext_t mContextToRollback;
+       snapshot_id currSnapShotID;
 };
-extern struct Snapshot_t * sTheRecord;
 #endif
+
+//Global reference to snapshot data structure
+extern struct SnapShot * snapshotrecord;
 #endif