int fd = shm_open( "/ModelChecker-Snapshotter", O_RDWR | O_CREAT, 0777 ); //universal permissions.
if( -1 == fd ) FAILURE("shm_open");
if( -1 == ftruncate( fd, ( size_t )SHARED_MEMORY_DEFAULT + ( size_t )STACK_SIZE_DEFAULT ) ) FAILURE( "ftruncate" );
- char * memMapBase = ( char * ) mmap( 0, ( size_t )SHARED_MEMORY_DEFAULT + ( size_t )STACK_SIZE_DEFAULT, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0 );
+ void * memMapBase = mmap( 0, ( size_t )SHARED_MEMORY_DEFAULT + ( size_t )STACK_SIZE_DEFAULT, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0 );
if( MAP_FAILED == memMapBase ) FAILURE("mmap");
sTheRecord = ( struct Snapshot * )memMapBase;
- sTheRecord->mSharedMemoryBase = memMapBase + sizeof( struct Snapshot );
- sTheRecord->mStackBase = ( char * )memMapBase + ( size_t )SHARED_MEMORY_DEFAULT;
+ sTheRecord->mSharedMemoryBase = (void *)((uintptr_t)memMapBase + sizeof(struct Snapshot));
+ sTheRecord->mStackBase = (void *)((uintptr_t)memMapBase + (size_t)SHARED_MEMORY_DEFAULT);
sTheRecord->mStackSize = STACK_SIZE_DEFAULT;
sTheRecord->mIDToRollback = -1;
sTheRecord->currSnapShotID = 0;
extern struct SnapShot * snapshotrecord;
#else
struct Snapshot {
-char *mSharedMemoryBase;
-char *mStackBase;
+void *mSharedMemoryBase;
+void *mStackBase;
size_t mStackSize;
snapshot_id mIDToRollback;
ucontext_t mContextToRollback;